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 (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 run_io_buf(const char **argv, char buf[], size_t bufsize)
684 if (!run_io_rd(&io, argv, FORMAT_NONE))
687 io.buf = io.bufpos = buf;
688 io.bufalloc = bufsize;
689 error = !io_get(&io, '\n', TRUE) && io_error(&io);
692 return done_io(&io) || error;
696 io_load(struct io *io, const char *separators,
697 int (*read_property)(char *, size_t, char *, size_t))
705 while (state == OK && (name = io_get(io, '\n', TRUE))) {
710 name = chomp_string(name);
711 namelen = strcspn(name, separators);
715 value = chomp_string(name + namelen + 1);
716 valuelen = strlen(value);
723 state = read_property(name, namelen, value, valuelen);
726 if (state != ERR && io_error(io))
734 run_io_load(const char **argv, const char *separators,
735 int (*read_property)(char *, size_t, char *, size_t))
739 return init_io_rd(&io, argv, NULL, FORMAT_NONE)
740 ? io_load(&io, separators, read_property) : ERR;
749 /* XXX: Keep the view request first and in sync with views[]. */ \
750 REQ_GROUP("View switching") \
751 REQ_(VIEW_MAIN, "Show main view"), \
752 REQ_(VIEW_DIFF, "Show diff view"), \
753 REQ_(VIEW_LOG, "Show log view"), \
754 REQ_(VIEW_TREE, "Show tree view"), \
755 REQ_(VIEW_BLOB, "Show blob view"), \
756 REQ_(VIEW_BLAME, "Show blame view"), \
757 REQ_(VIEW_HELP, "Show help page"), \
758 REQ_(VIEW_PAGER, "Show pager view"), \
759 REQ_(VIEW_STATUS, "Show status view"), \
760 REQ_(VIEW_STAGE, "Show stage view"), \
762 REQ_GROUP("View manipulation") \
763 REQ_(ENTER, "Enter current line and scroll"), \
764 REQ_(NEXT, "Move to next"), \
765 REQ_(PREVIOUS, "Move to previous"), \
766 REQ_(PARENT, "Move to parent"), \
767 REQ_(VIEW_NEXT, "Move focus to next view"), \
768 REQ_(REFRESH, "Reload and refresh"), \
769 REQ_(MAXIMIZE, "Maximize the current view"), \
770 REQ_(VIEW_CLOSE, "Close the current view"), \
771 REQ_(QUIT, "Close all views and quit"), \
773 REQ_GROUP("View specific requests") \
774 REQ_(STATUS_UPDATE, "Update file status"), \
775 REQ_(STATUS_REVERT, "Revert file changes"), \
776 REQ_(STATUS_MERGE, "Merge file using external tool"), \
777 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
779 REQ_GROUP("Cursor navigation") \
780 REQ_(MOVE_UP, "Move cursor one line up"), \
781 REQ_(MOVE_DOWN, "Move cursor one line down"), \
782 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
783 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
784 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
785 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
787 REQ_GROUP("Scrolling") \
788 REQ_(SCROLL_LEFT, "Scroll two columns left"), \
789 REQ_(SCROLL_RIGHT, "Scroll two columns right"), \
790 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
791 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
792 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
793 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
795 REQ_GROUP("Searching") \
796 REQ_(SEARCH, "Search the view"), \
797 REQ_(SEARCH_BACK, "Search backwards in the view"), \
798 REQ_(FIND_NEXT, "Find next search match"), \
799 REQ_(FIND_PREV, "Find previous search match"), \
801 REQ_GROUP("Option manipulation") \
802 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
803 REQ_(TOGGLE_DATE, "Toggle date display"), \
804 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
805 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
806 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
809 REQ_(PROMPT, "Bring up the prompt"), \
810 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
811 REQ_(SHOW_VERSION, "Show version information"), \
812 REQ_(STOP_LOADING, "Stop all loading views"), \
813 REQ_(EDIT, "Open in editor"), \
814 REQ_(NONE, "Do nothing")
817 /* User action requests. */
819 #define REQ_GROUP(help)
820 #define REQ_(req, help) REQ_##req
822 /* Offset all requests to avoid conflicts with ncurses getch values. */
823 REQ_OFFSET = KEY_MAX + 1,
830 struct request_info {
831 enum request request;
837 static struct request_info req_info[] = {
838 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
839 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
846 get_request(const char *name)
848 int namelen = strlen(name);
851 for (i = 0; i < ARRAY_SIZE(req_info); i++)
852 if (req_info[i].namelen == namelen &&
853 !string_enum_compare(req_info[i].name, name, namelen))
854 return req_info[i].request;
864 /* Option and state variables. */
865 static bool opt_date = TRUE;
866 static bool opt_author = TRUE;
867 static bool opt_line_number = FALSE;
868 static bool opt_line_graphics = TRUE;
869 static bool opt_rev_graph = FALSE;
870 static bool opt_show_refs = TRUE;
871 static int opt_num_interval = NUMBER_INTERVAL;
872 static int opt_tab_size = TAB_SIZE;
873 static int opt_author_cols = AUTHOR_COLS-1;
874 static char opt_path[SIZEOF_STR] = "";
875 static char opt_file[SIZEOF_STR] = "";
876 static char opt_ref[SIZEOF_REF] = "";
877 static char opt_head[SIZEOF_REF] = "";
878 static char opt_head_rev[SIZEOF_REV] = "";
879 static char opt_remote[SIZEOF_REF] = "";
880 static char opt_encoding[20] = "UTF-8";
881 static bool opt_utf8 = TRUE;
882 static char opt_codeset[20] = "UTF-8";
883 static iconv_t opt_iconv = ICONV_NONE;
884 static char opt_search[SIZEOF_STR] = "";
885 static char opt_cdup[SIZEOF_STR] = "";
886 static char opt_prefix[SIZEOF_STR] = "";
887 static char opt_git_dir[SIZEOF_STR] = "";
888 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
889 static char opt_editor[SIZEOF_STR] = "";
890 static FILE *opt_tty = NULL;
892 #define is_initial_commit() (!*opt_head_rev)
893 #define is_head_commit(rev) (!strcmp((rev), "HEAD") || !strcmp(opt_head_rev, (rev)))
897 * Line-oriented content detection.
901 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
902 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
903 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
904 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
905 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
906 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
907 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
908 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
909 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
910 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
911 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
912 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
913 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
914 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
915 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
916 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
917 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
918 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
919 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
920 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
921 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
922 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
923 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
924 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
925 LINE(AUTHOR, "author ", COLOR_GREEN, COLOR_DEFAULT, 0), \
926 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
927 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
928 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
929 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
930 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
931 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
932 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
933 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
934 LINE(MODE, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
935 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
936 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
937 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
938 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
939 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
940 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
941 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
942 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
943 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
944 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
945 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
946 LINE(TREE_HEAD, "", COLOR_DEFAULT, COLOR_DEFAULT, A_BOLD), \
947 LINE(TREE_DIR, "", COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL), \
948 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
949 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
950 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
951 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
952 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
953 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
954 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
955 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
958 #define LINE(type, line, fg, bg, attr) \
966 const char *name; /* Option name. */
967 int namelen; /* Size of option name. */
968 const char *line; /* The start of line to match. */
969 int linelen; /* Size of string to match. */
970 int fg, bg, attr; /* Color and text attributes for the lines. */
973 static struct line_info line_info[] = {
974 #define LINE(type, line, fg, bg, attr) \
975 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
980 static enum line_type
981 get_line_type(const char *line)
983 int linelen = strlen(line);
986 for (type = 0; type < ARRAY_SIZE(line_info); type++)
987 /* Case insensitive search matches Signed-off-by lines better. */
988 if (linelen >= line_info[type].linelen &&
989 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
996 get_line_attr(enum line_type type)
998 assert(type < ARRAY_SIZE(line_info));
999 return COLOR_PAIR(type) | line_info[type].attr;
1002 static struct line_info *
1003 get_line_info(const char *name)
1005 size_t namelen = strlen(name);
1006 enum line_type type;
1008 for (type = 0; type < ARRAY_SIZE(line_info); type++)
1009 if (namelen == line_info[type].namelen &&
1010 !string_enum_compare(line_info[type].name, name, namelen))
1011 return &line_info[type];
1019 int default_bg = line_info[LINE_DEFAULT].bg;
1020 int default_fg = line_info[LINE_DEFAULT].fg;
1021 enum line_type type;
1025 if (assume_default_colors(default_fg, default_bg) == ERR) {
1026 default_bg = COLOR_BLACK;
1027 default_fg = COLOR_WHITE;
1030 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
1031 struct line_info *info = &line_info[type];
1032 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
1033 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
1035 init_pair(type, fg, bg);
1040 enum line_type type;
1043 unsigned int selected:1;
1044 unsigned int dirty:1;
1045 unsigned int cleareol:1;
1047 void *data; /* User data */
1057 enum request request;
1060 static struct keybinding default_keybindings[] = {
1061 /* View switching */
1062 { 'm', REQ_VIEW_MAIN },
1063 { 'd', REQ_VIEW_DIFF },
1064 { 'l', REQ_VIEW_LOG },
1065 { 't', REQ_VIEW_TREE },
1066 { 'f', REQ_VIEW_BLOB },
1067 { 'B', REQ_VIEW_BLAME },
1068 { 'p', REQ_VIEW_PAGER },
1069 { 'h', REQ_VIEW_HELP },
1070 { 'S', REQ_VIEW_STATUS },
1071 { 'c', REQ_VIEW_STAGE },
1073 /* View manipulation */
1074 { 'q', REQ_VIEW_CLOSE },
1075 { KEY_TAB, REQ_VIEW_NEXT },
1076 { KEY_RETURN, REQ_ENTER },
1077 { KEY_UP, REQ_PREVIOUS },
1078 { KEY_DOWN, REQ_NEXT },
1079 { 'R', REQ_REFRESH },
1080 { KEY_F(5), REQ_REFRESH },
1081 { 'O', REQ_MAXIMIZE },
1083 /* Cursor navigation */
1084 { 'k', REQ_MOVE_UP },
1085 { 'j', REQ_MOVE_DOWN },
1086 { KEY_HOME, REQ_MOVE_FIRST_LINE },
1087 { KEY_END, REQ_MOVE_LAST_LINE },
1088 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
1089 { ' ', REQ_MOVE_PAGE_DOWN },
1090 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
1091 { 'b', REQ_MOVE_PAGE_UP },
1092 { '-', REQ_MOVE_PAGE_UP },
1095 { KEY_LEFT, REQ_SCROLL_LEFT },
1096 { KEY_RIGHT, REQ_SCROLL_RIGHT },
1097 { KEY_IC, REQ_SCROLL_LINE_UP },
1098 { KEY_DC, REQ_SCROLL_LINE_DOWN },
1099 { 'w', REQ_SCROLL_PAGE_UP },
1100 { 's', REQ_SCROLL_PAGE_DOWN },
1103 { '/', REQ_SEARCH },
1104 { '?', REQ_SEARCH_BACK },
1105 { 'n', REQ_FIND_NEXT },
1106 { 'N', REQ_FIND_PREV },
1110 { 'z', REQ_STOP_LOADING },
1111 { 'v', REQ_SHOW_VERSION },
1112 { 'r', REQ_SCREEN_REDRAW },
1113 { '.', REQ_TOGGLE_LINENO },
1114 { 'D', REQ_TOGGLE_DATE },
1115 { 'A', REQ_TOGGLE_AUTHOR },
1116 { 'g', REQ_TOGGLE_REV_GRAPH },
1117 { 'F', REQ_TOGGLE_REFS },
1118 { ':', REQ_PROMPT },
1119 { 'u', REQ_STATUS_UPDATE },
1120 { '!', REQ_STATUS_REVERT },
1121 { 'M', REQ_STATUS_MERGE },
1122 { '@', REQ_STAGE_NEXT },
1123 { ',', REQ_PARENT },
1127 #define KEYMAP_INFO \
1141 #define KEYMAP_(name) KEYMAP_##name
1146 static struct enum_map keymap_table[] = {
1147 #define KEYMAP_(name) ENUM_MAP(#name, KEYMAP_##name)
1152 #define set_keymap(map, name) map_enum(map, keymap_table, name)
1154 struct keybinding_table {
1155 struct keybinding *data;
1159 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
1162 add_keybinding(enum keymap keymap, enum request request, int key)
1164 struct keybinding_table *table = &keybindings[keymap];
1166 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
1168 die("Failed to allocate keybinding");
1169 table->data[table->size].alias = key;
1170 table->data[table->size++].request = request;
1173 /* Looks for a key binding first in the given map, then in the generic map, and
1174 * lastly in the default keybindings. */
1176 get_keybinding(enum keymap keymap, int key)
1180 for (i = 0; i < keybindings[keymap].size; i++)
1181 if (keybindings[keymap].data[i].alias == key)
1182 return keybindings[keymap].data[i].request;
1184 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
1185 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
1186 return keybindings[KEYMAP_GENERIC].data[i].request;
1188 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
1189 if (default_keybindings[i].alias == key)
1190 return default_keybindings[i].request;
1192 return (enum request) key;
1201 static struct key key_table[] = {
1202 { "Enter", KEY_RETURN },
1204 { "Backspace", KEY_BACKSPACE },
1206 { "Escape", KEY_ESC },
1207 { "Left", KEY_LEFT },
1208 { "Right", KEY_RIGHT },
1210 { "Down", KEY_DOWN },
1211 { "Insert", KEY_IC },
1212 { "Delete", KEY_DC },
1214 { "Home", KEY_HOME },
1216 { "PageUp", KEY_PPAGE },
1217 { "PageDown", KEY_NPAGE },
1227 { "F10", KEY_F(10) },
1228 { "F11", KEY_F(11) },
1229 { "F12", KEY_F(12) },
1233 get_key_value(const char *name)
1237 for (i = 0; i < ARRAY_SIZE(key_table); i++)
1238 if (!strcasecmp(key_table[i].name, name))
1239 return key_table[i].value;
1241 if (strlen(name) == 1 && isprint(*name))
1248 get_key_name(int key_value)
1250 static char key_char[] = "'X'";
1251 const char *seq = NULL;
1254 for (key = 0; key < ARRAY_SIZE(key_table); key++)
1255 if (key_table[key].value == key_value)
1256 seq = key_table[key].name;
1260 isprint(key_value)) {
1261 key_char[1] = (char) key_value;
1265 return seq ? seq : "(no key)";
1269 get_key(enum request request)
1271 static char buf[BUFSIZ];
1278 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1279 struct keybinding *keybinding = &default_keybindings[i];
1281 if (keybinding->request != request)
1284 if (!string_format_from(buf, &pos, "%s%s", sep,
1285 get_key_name(keybinding->alias)))
1286 return "Too many keybindings!";
1293 struct run_request {
1296 const char *argv[SIZEOF_ARG];
1299 static struct run_request *run_request;
1300 static size_t run_requests;
1303 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
1305 struct run_request *req;
1307 if (argc >= ARRAY_SIZE(req->argv) - 1)
1310 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1315 req = &run_request[run_requests];
1316 req->keymap = keymap;
1318 req->argv[0] = NULL;
1320 if (!format_argv(req->argv, argv, FORMAT_NONE))
1323 return REQ_NONE + ++run_requests;
1326 static struct run_request *
1327 get_run_request(enum request request)
1329 if (request <= REQ_NONE)
1331 return &run_request[request - REQ_NONE - 1];
1335 add_builtin_run_requests(void)
1337 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
1338 const char *gc[] = { "git", "gc", NULL };
1345 { KEYMAP_MAIN, 'C', ARRAY_SIZE(cherry_pick) - 1, cherry_pick },
1346 { KEYMAP_GENERIC, 'G', ARRAY_SIZE(gc) - 1, gc },
1350 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1353 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argc, reqs[i].argv);
1354 if (req != REQ_NONE)
1355 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1360 * User config file handling.
1363 static struct enum_map color_map[] = {
1364 #define COLOR_MAP(name) ENUM_MAP(#name, COLOR_##name)
1376 static struct enum_map attr_map[] = {
1377 #define ATTR_MAP(name) ENUM_MAP(#name, A_##name)
1384 ATTR_MAP(UNDERLINE),
1387 #define set_color(color, name) map_enum(color, color_map, name)
1388 #define set_attribute(attr, name) map_enum(attr, attr_map, name)
1390 static int config_lineno;
1391 static bool config_errors;
1392 static const char *config_msg;
1394 /* Wants: object fgcolor bgcolor [attribute] */
1396 option_color_command(int argc, const char *argv[])
1398 struct line_info *info;
1400 if (argc != 3 && argc != 4) {
1401 config_msg = "Wrong number of arguments given to color command";
1405 info = get_line_info(argv[0]);
1407 static struct enum_map obsolete[] = {
1408 ENUM_MAP("main-delim", LINE_DELIMITER),
1409 ENUM_MAP("main-date", LINE_DATE),
1410 ENUM_MAP("main-author", LINE_AUTHOR),
1414 if (!map_enum(&index, obsolete, argv[0])) {
1415 config_msg = "Unknown color name";
1418 info = &line_info[index];
1421 if (!set_color(&info->fg, argv[1]) ||
1422 !set_color(&info->bg, argv[2])) {
1423 config_msg = "Unknown color";
1427 if (argc == 4 && !set_attribute(&info->attr, argv[3])) {
1428 config_msg = "Unknown attribute";
1435 static int parse_bool(bool *opt, const char *arg)
1437 *opt = (!strcmp(arg, "1") || !strcmp(arg, "true") || !strcmp(arg, "yes"))
1443 parse_int(int *opt, const char *arg, int min, int max)
1445 int value = atoi(arg);
1447 if (min <= value && value <= max)
1453 parse_string(char *opt, const char *arg, size_t optsize)
1455 int arglen = strlen(arg);
1460 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1461 config_msg = "Unmatched quotation";
1464 arg += 1; arglen -= 2;
1466 string_ncopy_do(opt, optsize, arg, strlen(arg));
1471 /* Wants: name = value */
1473 option_set_command(int argc, const char *argv[])
1476 config_msg = "Wrong number of arguments given to set command";
1480 if (strcmp(argv[1], "=")) {
1481 config_msg = "No value assigned";
1485 if (!strcmp(argv[0], "show-author"))
1486 return parse_bool(&opt_author, argv[2]);
1488 if (!strcmp(argv[0], "show-date"))
1489 return parse_bool(&opt_date, argv[2]);
1491 if (!strcmp(argv[0], "show-rev-graph"))
1492 return parse_bool(&opt_rev_graph, argv[2]);
1494 if (!strcmp(argv[0], "show-refs"))
1495 return parse_bool(&opt_show_refs, argv[2]);
1497 if (!strcmp(argv[0], "show-line-numbers"))
1498 return parse_bool(&opt_line_number, argv[2]);
1500 if (!strcmp(argv[0], "line-graphics"))
1501 return parse_bool(&opt_line_graphics, argv[2]);
1503 if (!strcmp(argv[0], "line-number-interval"))
1504 return parse_int(&opt_num_interval, argv[2], 1, 1024);
1506 if (!strcmp(argv[0], "author-width"))
1507 return parse_int(&opt_author_cols, argv[2], 0, 1024);
1509 if (!strcmp(argv[0], "tab-size"))
1510 return parse_int(&opt_tab_size, argv[2], 1, 1024);
1512 if (!strcmp(argv[0], "commit-encoding"))
1513 return parse_string(opt_encoding, argv[2], sizeof(opt_encoding));
1515 config_msg = "Unknown variable name";
1519 /* Wants: mode request key */
1521 option_bind_command(int argc, const char *argv[])
1523 enum request request;
1528 config_msg = "Wrong number of arguments given to bind command";
1532 if (set_keymap(&keymap, argv[0]) == ERR) {
1533 config_msg = "Unknown key map";
1537 key = get_key_value(argv[1]);
1539 config_msg = "Unknown key";
1543 request = get_request(argv[2]);
1544 if (request == REQ_NONE) {
1545 static struct enum_map obsolete[] = {
1546 ENUM_MAP("cherry-pick", REQ_NONE),
1547 ENUM_MAP("screen-resize", REQ_NONE),
1548 ENUM_MAP("tree-parent", REQ_PARENT),
1552 if (map_enum(&alias, obsolete, argv[2])) {
1553 if (alias != REQ_NONE)
1554 add_keybinding(keymap, alias, key);
1555 config_msg = "Obsolete request name";
1559 if (request == REQ_NONE && *argv[2]++ == '!')
1560 request = add_run_request(keymap, key, argc - 2, argv + 2);
1561 if (request == REQ_NONE) {
1562 config_msg = "Unknown request name";
1566 add_keybinding(keymap, request, key);
1572 set_option(const char *opt, char *value)
1574 const char *argv[SIZEOF_ARG];
1577 if (!argv_from_string(argv, &argc, value)) {
1578 config_msg = "Too many option arguments";
1582 if (!strcmp(opt, "color"))
1583 return option_color_command(argc, argv);
1585 if (!strcmp(opt, "set"))
1586 return option_set_command(argc, argv);
1588 if (!strcmp(opt, "bind"))
1589 return option_bind_command(argc, argv);
1591 config_msg = "Unknown option command";
1596 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1601 config_msg = "Internal error";
1603 /* Check for comment markers, since read_properties() will
1604 * only ensure opt and value are split at first " \t". */
1605 optlen = strcspn(opt, "#");
1609 if (opt[optlen] != 0) {
1610 config_msg = "No option value";
1614 /* Look for comment endings in the value. */
1615 size_t len = strcspn(value, "#");
1617 if (len < valuelen) {
1619 value[valuelen] = 0;
1622 status = set_option(opt, value);
1625 if (status == ERR) {
1626 warn("Error on line %d, near '%.*s': %s",
1627 config_lineno, (int) optlen, opt, config_msg);
1628 config_errors = TRUE;
1631 /* Always keep going if errors are encountered. */
1636 load_option_file(const char *path)
1640 /* It's OK that the file doesn't exist. */
1641 if (!io_open(&io, path))
1645 config_errors = FALSE;
1647 if (io_load(&io, " \t", read_option) == ERR ||
1648 config_errors == TRUE)
1649 warn("Errors while loading %s.", path);
1655 const char *home = getenv("HOME");
1656 const char *tigrc_user = getenv("TIGRC_USER");
1657 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1658 char buf[SIZEOF_STR];
1660 add_builtin_run_requests();
1662 if (!tigrc_system) {
1663 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1667 load_option_file(tigrc_system);
1670 if (!home || !string_format(buf, "%s/.tigrc", home))
1674 load_option_file(tigrc_user);
1687 /* The display array of active views and the index of the current view. */
1688 static struct view *display[2];
1689 static unsigned int current_view;
1691 #define foreach_displayed_view(view, i) \
1692 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1694 #define displayed_views() (display[1] != NULL ? 2 : 1)
1696 /* Current head and commit ID */
1697 static char ref_blob[SIZEOF_REF] = "";
1698 static char ref_commit[SIZEOF_REF] = "HEAD";
1699 static char ref_head[SIZEOF_REF] = "HEAD";
1702 const char *name; /* View name */
1703 const char *cmd_env; /* Command line set via environment */
1704 const char *id; /* Points to either of ref_{head,commit,blob} */
1706 struct view_ops *ops; /* View operations */
1708 enum keymap keymap; /* What keymap does this view have */
1709 bool git_dir; /* Whether the view requires a git directory. */
1711 char ref[SIZEOF_REF]; /* Hovered commit reference */
1712 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1714 int height, width; /* The width and height of the main window */
1715 WINDOW *win; /* The main window */
1716 WINDOW *title; /* The title window living below the main window */
1719 unsigned long offset; /* Offset of the window top */
1720 unsigned long yoffset; /* Offset from the window side. */
1721 unsigned long lineno; /* Current line number */
1722 unsigned long p_offset; /* Previous offset of the window top */
1723 unsigned long p_yoffset;/* Previous offset from the window side */
1724 unsigned long p_lineno; /* Previous current line number */
1725 bool p_restore; /* Should the previous position be restored. */
1728 char grep[SIZEOF_STR]; /* Search string */
1729 regex_t *regex; /* Pre-compiled regexp */
1731 /* If non-NULL, points to the view that opened this view. If this view
1732 * is closed tig will switch back to the parent view. */
1733 struct view *parent;
1736 size_t lines; /* Total number of lines */
1737 struct line *line; /* Line index */
1738 size_t line_alloc; /* Total number of allocated lines */
1739 unsigned int digits; /* Number of digits in the lines member. */
1742 struct line *curline; /* Line currently being drawn. */
1743 enum line_type curtype; /* Attribute currently used for drawing. */
1744 unsigned long col; /* Column when drawing. */
1745 bool has_scrolled; /* View was scrolled. */
1746 bool can_hscroll; /* View can be scrolled horizontally. */
1756 /* What type of content being displayed. Used in the title bar. */
1758 /* Default command arguments. */
1760 /* Open and reads in all view content. */
1761 bool (*open)(struct view *view);
1762 /* Read one line; updates view->line. */
1763 bool (*read)(struct view *view, char *data);
1764 /* Draw one line; @lineno must be < view->height. */
1765 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1766 /* Depending on view handle a special requests. */
1767 enum request (*request)(struct view *view, enum request request, struct line *line);
1768 /* Search for regexp in a line. */
1769 bool (*grep)(struct view *view, struct line *line);
1771 void (*select)(struct view *view, struct line *line);
1774 static struct view_ops blame_ops;
1775 static struct view_ops blob_ops;
1776 static struct view_ops diff_ops;
1777 static struct view_ops help_ops;
1778 static struct view_ops log_ops;
1779 static struct view_ops main_ops;
1780 static struct view_ops pager_ops;
1781 static struct view_ops stage_ops;
1782 static struct view_ops status_ops;
1783 static struct view_ops tree_ops;
1785 #define VIEW_STR(name, env, ref, ops, map, git) \
1786 { name, #env, ref, ops, map, git }
1788 #define VIEW_(id, name, ops, git, ref) \
1789 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1792 static struct view views[] = {
1793 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1794 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1795 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1796 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1797 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1798 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1799 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1800 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1801 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1802 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1805 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1806 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1808 #define foreach_view(view, i) \
1809 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1811 #define view_is_displayed(view) \
1812 (view == display[0] || view == display[1])
1819 static int line_graphics[] = {
1820 /* LINE_GRAPHIC_VLINE: */ '|'
1824 set_view_attr(struct view *view, enum line_type type)
1826 if (!view->curline->selected && view->curtype != type) {
1827 wattrset(view->win, get_line_attr(type));
1828 wchgat(view->win, -1, 0, type, NULL);
1829 view->curtype = type;
1834 draw_chars(struct view *view, enum line_type type, const char *string,
1835 int max_len, bool use_tilde)
1839 int trimmed = FALSE;
1840 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1846 len = utf8_length(&string, skip, &col, max_len, &trimmed, use_tilde);
1848 col = len = strlen(string);
1849 if (len > max_len) {
1853 col = len = max_len;
1858 set_view_attr(view, type);
1860 waddnstr(view->win, string, len);
1861 if (trimmed && use_tilde) {
1862 set_view_attr(view, LINE_DELIMITER);
1863 waddch(view->win, '~');
1867 if (view->col + col >= view->width + view->yoffset)
1868 view->can_hscroll = TRUE;
1874 draw_space(struct view *view, enum line_type type, int max, int spaces)
1876 static char space[] = " ";
1879 spaces = MIN(max, spaces);
1881 while (spaces > 0) {
1882 int len = MIN(spaces, sizeof(space) - 1);
1884 col += draw_chars(view, type, space, spaces, FALSE);
1892 draw_lineno(struct view *view, unsigned int lineno)
1894 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1896 int digits3 = view->digits < 3 ? 3 : view->digits;
1897 int max_number = MIN(digits3, STRING_SIZE(number));
1898 int max = view->width - view->col;
1901 if (max < max_number)
1904 lineno += view->offset + 1;
1905 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1906 static char fmt[] = "%1ld";
1908 if (view->digits <= 9)
1909 fmt[1] = '0' + digits3;
1911 if (!string_format(number, fmt, lineno))
1913 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1915 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1918 if (col < max && skip <= col) {
1919 set_view_attr(view, LINE_DEFAULT);
1920 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1925 if (col < max && skip <= col)
1926 col = draw_space(view, LINE_DEFAULT, max - col, 1);
1929 return view->width + view->yoffset <= view->col;
1933 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1935 view->col += draw_chars(view, type, string, view->width + view->yoffset - view->col, trim);
1936 return view->width - view->col <= 0;
1940 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1942 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1943 int max = view->width - view->col;
1949 set_view_attr(view, type);
1950 /* Using waddch() instead of waddnstr() ensures that
1951 * they'll be rendered correctly for the cursor line. */
1952 for (i = skip; i < size; i++)
1953 waddch(view->win, graphic[i]);
1956 if (size < max && skip <= size)
1957 waddch(view->win, ' ');
1960 return view->width - view->col <= 0;
1964 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1966 int max = MIN(view->width - view->col, len);
1970 col = draw_chars(view, type, text, max - 1, trim);
1972 col = draw_space(view, type, max - 1, max - 1);
1975 view->col += draw_space(view, LINE_DEFAULT, max - col, max - col);
1976 return view->width + view->yoffset <= view->col;
1980 draw_date(struct view *view, struct tm *time)
1982 char buf[DATE_COLS];
1987 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1988 date = timelen ? buf : NULL;
1990 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
1994 draw_author(struct view *view, const char *author)
1996 bool trim = opt_author_cols == 0 || opt_author_cols > 5 || !author;
1999 static char initials[10];
2002 #define is_initial_sep(c) (isspace(c) || ispunct(c) || (c) == '@')
2004 memset(initials, 0, sizeof(initials));
2005 for (pos = 0; *author && pos < opt_author_cols - 1; author++, pos++) {
2006 while (is_initial_sep(*author))
2008 strncpy(&initials[pos], author, sizeof(initials) - 1 - pos);
2009 while (*author && !is_initial_sep(author[1]))
2016 return draw_field(view, LINE_AUTHOR, author, opt_author_cols, trim);
2020 draw_mode(struct view *view, mode_t mode)
2022 static const char dir_mode[] = "drwxr-xr-x";
2023 static const char link_mode[] = "lrwxrwxrwx";
2024 static const char exe_mode[] = "-rwxr-xr-x";
2025 static const char file_mode[] = "-rw-r--r--";
2030 else if (S_ISLNK(mode))
2032 else if (mode & S_IXUSR)
2037 return draw_field(view, LINE_MODE, str, sizeof(file_mode), FALSE);
2041 draw_view_line(struct view *view, unsigned int lineno)
2044 bool selected = (view->offset + lineno == view->lineno);
2046 assert(view_is_displayed(view));
2048 if (view->offset + lineno >= view->lines)
2051 line = &view->line[view->offset + lineno];
2053 wmove(view->win, lineno, 0);
2055 wclrtoeol(view->win);
2057 view->curline = line;
2058 view->curtype = LINE_NONE;
2059 line->selected = FALSE;
2060 line->dirty = line->cleareol = 0;
2063 set_view_attr(view, LINE_CURSOR);
2064 line->selected = TRUE;
2065 view->ops->select(view, line);
2068 return view->ops->draw(view, line, lineno);
2072 redraw_view_dirty(struct view *view)
2077 for (lineno = 0; lineno < view->height; lineno++) {
2078 if (view->offset + lineno >= view->lines)
2080 if (!view->line[view->offset + lineno].dirty)
2083 if (!draw_view_line(view, lineno))
2089 wnoutrefresh(view->win);
2093 redraw_view_from(struct view *view, int lineno)
2095 assert(0 <= lineno && lineno < view->height);
2098 view->can_hscroll = FALSE;
2100 for (; lineno < view->height; lineno++) {
2101 if (!draw_view_line(view, lineno))
2105 wnoutrefresh(view->win);
2109 redraw_view(struct view *view)
2112 redraw_view_from(view, 0);
2117 update_view_title(struct view *view)
2119 char buf[SIZEOF_STR];
2120 char state[SIZEOF_STR];
2121 size_t bufpos = 0, statelen = 0;
2123 assert(view_is_displayed(view));
2125 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2126 unsigned int view_lines = view->offset + view->height;
2127 unsigned int lines = view->lines
2128 ? MIN(view_lines, view->lines) * 100 / view->lines
2131 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2140 time_t secs = time(NULL) - view->start_time;
2142 /* Three git seconds are a long time ... */
2144 string_format_from(state, &statelen, " loading %lds", secs);
2147 string_format_from(buf, &bufpos, "[%s]", view->name);
2148 if (*view->ref && bufpos < view->width) {
2149 size_t refsize = strlen(view->ref);
2150 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2152 if (minsize < view->width)
2153 refsize = view->width - minsize + 7;
2154 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2157 if (statelen && bufpos < view->width) {
2158 string_format_from(buf, &bufpos, "%s", state);
2161 if (view == display[current_view])
2162 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2164 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2166 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2167 wclrtoeol(view->title);
2168 wnoutrefresh(view->title);
2172 resize_display(void)
2175 struct view *base = display[0];
2176 struct view *view = display[1] ? display[1] : display[0];
2178 /* Setup window dimensions */
2180 getmaxyx(stdscr, base->height, base->width);
2182 /* Make room for the status window. */
2186 /* Horizontal split. */
2187 view->width = base->width;
2188 view->height = SCALE_SPLIT_VIEW(base->height);
2189 base->height -= view->height;
2191 /* Make room for the title bar. */
2195 /* Make room for the title bar. */
2200 foreach_displayed_view (view, i) {
2202 view->win = newwin(view->height, 0, offset, 0);
2204 die("Failed to create %s view", view->name);
2206 scrollok(view->win, FALSE);
2208 view->title = newwin(1, 0, offset + view->height, 0);
2210 die("Failed to create title window");
2213 wresize(view->win, view->height, view->width);
2214 mvwin(view->win, offset, 0);
2215 mvwin(view->title, offset + view->height, 0);
2218 offset += view->height + 1;
2223 redraw_display(bool clear)
2228 foreach_displayed_view (view, i) {
2232 update_view_title(view);
2237 toggle_view_option(bool *option, const char *help)
2240 redraw_display(FALSE);
2241 report("%sabling %s", *option ? "En" : "Dis", help);
2248 /* Scrolling backend */
2250 do_scroll_view(struct view *view, int lines)
2252 bool redraw_current_line = FALSE;
2254 /* The rendering expects the new offset. */
2255 view->offset += lines;
2257 assert(0 <= view->offset && view->offset < view->lines);
2260 /* Move current line into the view. */
2261 if (view->lineno < view->offset) {
2262 view->lineno = view->offset;
2263 redraw_current_line = TRUE;
2264 } else if (view->lineno >= view->offset + view->height) {
2265 view->lineno = view->offset + view->height - 1;
2266 redraw_current_line = TRUE;
2269 assert(view->offset <= view->lineno && view->lineno < view->lines);
2271 /* Redraw the whole screen if scrolling is pointless. */
2272 if (view->height < ABS(lines)) {
2276 int line = lines > 0 ? view->height - lines : 0;
2277 int end = line + ABS(lines);
2279 scrollok(view->win, TRUE);
2280 wscrl(view->win, lines);
2281 scrollok(view->win, FALSE);
2283 while (line < end && draw_view_line(view, line))
2286 if (redraw_current_line)
2287 draw_view_line(view, view->lineno - view->offset);
2288 wnoutrefresh(view->win);
2291 view->has_scrolled = TRUE;
2295 /* Scroll frontend */
2297 scroll_view(struct view *view, enum request request)
2301 assert(view_is_displayed(view));
2304 case REQ_SCROLL_LEFT:
2305 if (view->yoffset == 0) {
2306 report("Cannot scroll beyond the first column");
2309 if (view->yoffset <= SCROLL_INTERVAL)
2312 view->yoffset -= SCROLL_INTERVAL;
2313 redraw_view_from(view, 0);
2316 case REQ_SCROLL_RIGHT:
2317 if (!view->can_hscroll) {
2318 report("Cannot scroll beyond the last column");
2321 view->yoffset += SCROLL_INTERVAL;
2325 case REQ_SCROLL_PAGE_DOWN:
2326 lines = view->height;
2327 case REQ_SCROLL_LINE_DOWN:
2328 if (view->offset + lines > view->lines)
2329 lines = view->lines - view->offset;
2331 if (lines == 0 || view->offset + view->height >= view->lines) {
2332 report("Cannot scroll beyond the last line");
2337 case REQ_SCROLL_PAGE_UP:
2338 lines = view->height;
2339 case REQ_SCROLL_LINE_UP:
2340 if (lines > view->offset)
2341 lines = view->offset;
2344 report("Cannot scroll beyond the first line");
2352 die("request %d not handled in switch", request);
2355 do_scroll_view(view, lines);
2360 move_view(struct view *view, enum request request)
2362 int scroll_steps = 0;
2366 case REQ_MOVE_FIRST_LINE:
2367 steps = -view->lineno;
2370 case REQ_MOVE_LAST_LINE:
2371 steps = view->lines - view->lineno - 1;
2374 case REQ_MOVE_PAGE_UP:
2375 steps = view->height > view->lineno
2376 ? -view->lineno : -view->height;
2379 case REQ_MOVE_PAGE_DOWN:
2380 steps = view->lineno + view->height >= view->lines
2381 ? view->lines - view->lineno - 1 : view->height;
2393 die("request %d not handled in switch", request);
2396 if (steps <= 0 && view->lineno == 0) {
2397 report("Cannot move beyond the first line");
2400 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2401 report("Cannot move beyond the last line");
2405 /* Move the current line */
2406 view->lineno += steps;
2407 assert(0 <= view->lineno && view->lineno < view->lines);
2409 /* Check whether the view needs to be scrolled */
2410 if (view->lineno < view->offset ||
2411 view->lineno >= view->offset + view->height) {
2412 scroll_steps = steps;
2413 if (steps < 0 && -steps > view->offset) {
2414 scroll_steps = -view->offset;
2416 } else if (steps > 0) {
2417 if (view->lineno == view->lines - 1 &&
2418 view->lines > view->height) {
2419 scroll_steps = view->lines - view->offset - 1;
2420 if (scroll_steps >= view->height)
2421 scroll_steps -= view->height - 1;
2426 if (!view_is_displayed(view)) {
2427 view->offset += scroll_steps;
2428 assert(0 <= view->offset && view->offset < view->lines);
2429 view->ops->select(view, &view->line[view->lineno]);
2433 /* Repaint the old "current" line if we be scrolling */
2434 if (ABS(steps) < view->height)
2435 draw_view_line(view, view->lineno - steps - view->offset);
2438 do_scroll_view(view, scroll_steps);
2442 /* Draw the current line */
2443 draw_view_line(view, view->lineno - view->offset);
2445 wnoutrefresh(view->win);
2454 static void search_view(struct view *view, enum request request);
2457 select_view_line(struct view *view, unsigned long lineno)
2459 if (lineno - view->offset >= view->height) {
2460 view->offset = lineno;
2461 view->lineno = lineno;
2462 if (view_is_displayed(view))
2466 unsigned long old_lineno = view->lineno - view->offset;
2468 view->lineno = lineno;
2469 if (view_is_displayed(view)) {
2470 draw_view_line(view, old_lineno);
2471 draw_view_line(view, view->lineno - view->offset);
2472 wnoutrefresh(view->win);
2474 view->ops->select(view, &view->line[view->lineno]);
2480 find_next(struct view *view, enum request request)
2482 unsigned long lineno = view->lineno;
2487 report("No previous search");
2489 search_view(view, request);
2499 case REQ_SEARCH_BACK:
2508 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2509 lineno += direction;
2511 /* Note, lineno is unsigned long so will wrap around in which case it
2512 * will become bigger than view->lines. */
2513 for (; lineno < view->lines; lineno += direction) {
2514 if (view->ops->grep(view, &view->line[lineno])) {
2515 select_view_line(view, lineno);
2516 report("Line %ld matches '%s'", lineno + 1, view->grep);
2521 report("No match found for '%s'", view->grep);
2525 search_view(struct view *view, enum request request)
2530 regfree(view->regex);
2533 view->regex = calloc(1, sizeof(*view->regex));
2538 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2539 if (regex_err != 0) {
2540 char buf[SIZEOF_STR] = "unknown error";
2542 regerror(regex_err, view->regex, buf, sizeof(buf));
2543 report("Search failed: %s", buf);
2547 string_copy(view->grep, opt_search);
2549 find_next(view, request);
2553 * Incremental updating
2557 reset_view(struct view *view)
2561 for (i = 0; i < view->lines; i++)
2562 free(view->line[i].data);
2565 view->p_offset = view->offset;
2566 view->p_yoffset = view->yoffset;
2567 view->p_lineno = view->lineno;
2574 view->line_alloc = 0;
2576 view->update_secs = 0;
2580 free_argv(const char *argv[])
2584 for (argc = 0; argv[argc]; argc++)
2585 free((void *) argv[argc]);
2589 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2591 char buf[SIZEOF_STR];
2593 bool noreplace = flags == FORMAT_NONE;
2595 free_argv(dst_argv);
2597 for (argc = 0; src_argv[argc]; argc++) {
2598 const char *arg = src_argv[argc];
2602 char *next = strstr(arg, "%(");
2603 int len = next - arg;
2606 if (!next || noreplace) {
2607 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2612 } else if (!prefixcmp(next, "%(directory)")) {
2615 } else if (!prefixcmp(next, "%(file)")) {
2618 } else if (!prefixcmp(next, "%(ref)")) {
2619 value = *opt_ref ? opt_ref : "HEAD";
2621 } else if (!prefixcmp(next, "%(head)")) {
2624 } else if (!prefixcmp(next, "%(commit)")) {
2627 } else if (!prefixcmp(next, "%(blob)")) {
2631 report("Unknown replacement: `%s`", next);
2635 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2638 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2641 dst_argv[argc] = strdup(buf);
2642 if (!dst_argv[argc])
2646 dst_argv[argc] = NULL;
2648 return src_argv[argc] == NULL;
2652 restore_view_position(struct view *view)
2654 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2657 /* Changing the view position cancels the restoring. */
2658 /* FIXME: Changing back to the first line is not detected. */
2659 if (view->offset != 0 || view->lineno != 0) {
2660 view->p_restore = FALSE;
2664 if (view->p_lineno >= view->lines) {
2665 view->p_lineno = view->lines > 0 ? view->lines - 1 : 0;
2666 if (view->p_offset >= view->p_lineno) {
2667 unsigned long half = view->height / 2;
2669 if (view->p_lineno > half)
2670 view->p_offset = view->p_lineno - half;
2676 if (view_is_displayed(view) &&
2677 view->offset != view->p_offset &&
2678 view->lineno != view->p_lineno)
2681 view->offset = view->p_offset;
2682 view->yoffset = view->p_yoffset;
2683 view->lineno = view->p_lineno;
2684 view->p_restore = FALSE;
2690 end_update(struct view *view, bool force)
2694 while (!view->ops->read(view, NULL))
2697 set_nonblocking_input(FALSE);
2699 kill_io(view->pipe);
2700 done_io(view->pipe);
2705 setup_update(struct view *view, const char *vid)
2707 set_nonblocking_input(TRUE);
2709 string_copy_rev(view->vid, vid);
2710 view->pipe = &view->io;
2711 view->start_time = time(NULL);
2715 prepare_update(struct view *view, const char *argv[], const char *dir,
2716 enum format_flags flags)
2719 end_update(view, TRUE);
2720 return init_io_rd(&view->io, argv, dir, flags);
2724 prepare_update_file(struct view *view, const char *name)
2727 end_update(view, TRUE);
2728 return io_open(&view->io, name);
2732 begin_update(struct view *view, bool refresh)
2735 end_update(view, TRUE);
2738 if (!start_io(&view->io))
2742 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2745 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2748 /* Put the current ref_* value to the view title ref
2749 * member. This is needed by the blob view. Most other
2750 * views sets it automatically after loading because the
2751 * first line is a commit line. */
2752 string_copy_rev(view->ref, view->id);
2755 setup_update(view, view->id);
2760 #define ITEM_CHUNK_SIZE 256
2762 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2764 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2765 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2767 if (mem == NULL || num_chunks != num_chunks_new) {
2768 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2769 mem = realloc(mem, *size * item_size);
2775 static struct line *
2776 realloc_lines(struct view *view, size_t line_size)
2778 size_t alloc = view->line_alloc;
2779 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2780 sizeof(*view->line));
2786 view->line_alloc = alloc;
2791 update_view(struct view *view)
2793 char out_buffer[BUFSIZ * 2];
2795 /* Clear the view and redraw everything since the tree sorting
2796 * might have rearranged things. */
2797 bool redraw = view->lines == 0;
2798 bool can_read = TRUE;
2803 if (!io_can_read(view->pipe)) {
2804 if (view->lines == 0) {
2805 time_t secs = time(NULL) - view->start_time;
2807 if (secs > 1 && secs > view->update_secs) {
2808 if (view->update_secs == 0)
2810 update_view_title(view);
2811 view->update_secs = secs;
2817 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2818 if (opt_iconv != ICONV_NONE) {
2819 ICONV_CONST char *inbuf = line;
2820 size_t inlen = strlen(line) + 1;
2822 char *outbuf = out_buffer;
2823 size_t outlen = sizeof(out_buffer);
2827 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2828 if (ret != (size_t) -1)
2832 if (!view->ops->read(view, line)) {
2833 report("Allocation failure");
2834 end_update(view, TRUE);
2840 unsigned long lines = view->lines;
2843 for (digits = 0; lines; digits++)
2846 /* Keep the displayed view in sync with line number scaling. */
2847 if (digits != view->digits) {
2848 view->digits = digits;
2849 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2854 if (io_error(view->pipe)) {
2855 report("Failed to read: %s", io_strerror(view->pipe));
2856 end_update(view, TRUE);
2858 } else if (io_eof(view->pipe)) {
2860 end_update(view, FALSE);
2863 if (restore_view_position(view))
2866 if (!view_is_displayed(view))
2870 redraw_view_from(view, 0);
2872 redraw_view_dirty(view);
2874 /* Update the title _after_ the redraw so that if the redraw picks up a
2875 * commit reference in view->ref it'll be available here. */
2876 update_view_title(view);
2880 static struct line *
2881 add_line_data(struct view *view, void *data, enum line_type type)
2885 if (!realloc_lines(view, view->lines + 1))
2888 line = &view->line[view->lines++];
2889 memset(line, 0, sizeof(*line));
2897 static struct line *
2898 add_line_text(struct view *view, const char *text, enum line_type type)
2900 char *data = text ? strdup(text) : NULL;
2902 return data ? add_line_data(view, data, type) : NULL;
2905 static struct line *
2906 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2908 char buf[SIZEOF_STR];
2911 va_start(args, fmt);
2912 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2916 return buf[0] ? add_line_text(view, buf, type) : NULL;
2924 OPEN_DEFAULT = 0, /* Use default view switching. */
2925 OPEN_SPLIT = 1, /* Split current view. */
2926 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2927 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2928 OPEN_PREPARED = 32, /* Open already prepared command. */
2932 open_view(struct view *prev, enum request request, enum open_flags flags)
2934 bool split = !!(flags & OPEN_SPLIT);
2935 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2936 bool nomaximize = !!(flags & OPEN_REFRESH);
2937 struct view *view = VIEW(request);
2938 int nviews = displayed_views();
2939 struct view *base_view = display[0];
2941 if (view == prev && nviews == 1 && !reload) {
2942 report("Already in %s view", view->name);
2946 if (view->git_dir && !opt_git_dir[0]) {
2947 report("The %s view is disabled in pager view", view->name);
2954 } else if (!nomaximize) {
2955 /* Maximize the current view. */
2956 memset(display, 0, sizeof(display));
2958 display[current_view] = view;
2961 /* Resize the view when switching between split- and full-screen,
2962 * or when switching between two different full-screen views. */
2963 if (nviews != displayed_views() ||
2964 (nviews == 1 && base_view != display[0]))
2967 if (view->ops->open) {
2969 end_update(view, TRUE);
2970 if (!view->ops->open(view)) {
2971 report("Failed to load %s view", view->name);
2974 restore_view_position(view);
2976 } else if ((reload || strcmp(view->vid, view->id)) &&
2977 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2978 report("Failed to load %s view", view->name);
2982 if (split && prev->lineno - prev->offset >= prev->height) {
2983 /* Take the title line into account. */
2984 int lines = prev->lineno - prev->offset - prev->height + 1;
2986 /* Scroll the view that was split if the current line is
2987 * outside the new limited view. */
2988 do_scroll_view(prev, lines);
2991 if (prev && view != prev) {
2993 /* "Blur" the previous view. */
2994 update_view_title(prev);
2997 view->parent = prev;
3000 if (view->pipe && view->lines == 0) {
3001 /* Clear the old view and let the incremental updating refill
3004 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
3006 } else if (view_is_displayed(view)) {
3013 open_external_viewer(const char *argv[], const char *dir)
3015 def_prog_mode(); /* save current tty modes */
3016 endwin(); /* restore original tty modes */
3017 run_io_fg(argv, dir);
3018 fprintf(stderr, "Press Enter to continue");
3021 redraw_display(TRUE);
3025 open_mergetool(const char *file)
3027 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
3029 open_external_viewer(mergetool_argv, opt_cdup);
3033 open_editor(bool from_root, const char *file)
3035 const char *editor_argv[] = { "vi", file, NULL };
3038 editor = getenv("GIT_EDITOR");
3039 if (!editor && *opt_editor)
3040 editor = opt_editor;
3042 editor = getenv("VISUAL");
3044 editor = getenv("EDITOR");
3048 editor_argv[0] = editor;
3049 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3053 open_run_request(enum request request)
3055 struct run_request *req = get_run_request(request);
3056 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3059 report("Unknown run request");
3063 if (format_argv(argv, req->argv, FORMAT_ALL))
3064 open_external_viewer(argv, NULL);
3069 * User request switch noodle
3073 view_driver(struct view *view, enum request request)
3077 if (request == REQ_NONE) {
3082 if (request > REQ_NONE) {
3083 open_run_request(request);
3084 /* FIXME: When all views can refresh always do this. */
3085 if (view == VIEW(REQ_VIEW_STATUS) ||
3086 view == VIEW(REQ_VIEW_MAIN) ||
3087 view == VIEW(REQ_VIEW_LOG) ||
3088 view == VIEW(REQ_VIEW_STAGE))
3089 request = REQ_REFRESH;
3094 if (view && view->lines) {
3095 request = view->ops->request(view, request, &view->line[view->lineno]);
3096 if (request == REQ_NONE)
3103 case REQ_MOVE_PAGE_UP:
3104 case REQ_MOVE_PAGE_DOWN:
3105 case REQ_MOVE_FIRST_LINE:
3106 case REQ_MOVE_LAST_LINE:
3107 move_view(view, request);
3110 case REQ_SCROLL_LEFT:
3111 case REQ_SCROLL_RIGHT:
3112 case REQ_SCROLL_LINE_DOWN:
3113 case REQ_SCROLL_LINE_UP:
3114 case REQ_SCROLL_PAGE_DOWN:
3115 case REQ_SCROLL_PAGE_UP:
3116 scroll_view(view, request);
3119 case REQ_VIEW_BLAME:
3121 report("No file chosen, press %s to open tree view",
3122 get_key(REQ_VIEW_TREE));
3125 open_view(view, request, OPEN_DEFAULT);
3130 report("No file chosen, press %s to open tree view",
3131 get_key(REQ_VIEW_TREE));
3134 open_view(view, request, OPEN_DEFAULT);
3137 case REQ_VIEW_PAGER:
3138 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3139 report("No pager content, press %s to run command from prompt",
3140 get_key(REQ_PROMPT));
3143 open_view(view, request, OPEN_DEFAULT);
3146 case REQ_VIEW_STAGE:
3147 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3148 report("No stage content, press %s to open the status view and choose file",
3149 get_key(REQ_VIEW_STATUS));
3152 open_view(view, request, OPEN_DEFAULT);
3155 case REQ_VIEW_STATUS:
3156 if (opt_is_inside_work_tree == FALSE) {
3157 report("The status view requires a working tree");
3160 open_view(view, request, OPEN_DEFAULT);
3168 open_view(view, request, OPEN_DEFAULT);
3173 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3175 if ((view == VIEW(REQ_VIEW_DIFF) &&
3176 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3177 (view == VIEW(REQ_VIEW_DIFF) &&
3178 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3179 (view == VIEW(REQ_VIEW_STAGE) &&
3180 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3181 (view == VIEW(REQ_VIEW_BLOB) &&
3182 view->parent == VIEW(REQ_VIEW_TREE))) {
3185 view = view->parent;
3186 line = view->lineno;
3187 move_view(view, request);
3188 if (view_is_displayed(view))
3189 update_view_title(view);
3190 if (line != view->lineno)
3191 view->ops->request(view, REQ_ENTER,
3192 &view->line[view->lineno]);
3195 move_view(view, request);
3201 int nviews = displayed_views();
3202 int next_view = (current_view + 1) % nviews;
3204 if (next_view == current_view) {
3205 report("Only one view is displayed");
3209 current_view = next_view;
3210 /* Blur out the title of the previous view. */
3211 update_view_title(view);
3216 report("Refreshing is not yet supported for the %s view", view->name);
3220 if (displayed_views() == 2)
3221 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3224 case REQ_TOGGLE_LINENO:
3225 toggle_view_option(&opt_line_number, "line numbers");
3228 case REQ_TOGGLE_DATE:
3229 toggle_view_option(&opt_date, "date display");
3232 case REQ_TOGGLE_AUTHOR:
3233 toggle_view_option(&opt_author, "author display");
3236 case REQ_TOGGLE_REV_GRAPH:
3237 toggle_view_option(&opt_rev_graph, "revision graph display");
3240 case REQ_TOGGLE_REFS:
3241 toggle_view_option(&opt_show_refs, "reference display");
3245 case REQ_SEARCH_BACK:
3246 search_view(view, request);
3251 find_next(view, request);
3254 case REQ_STOP_LOADING:
3255 for (i = 0; i < ARRAY_SIZE(views); i++) {
3258 report("Stopped loading the %s view", view->name),
3259 end_update(view, TRUE);
3263 case REQ_SHOW_VERSION:
3264 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3267 case REQ_SCREEN_REDRAW:
3268 redraw_display(TRUE);
3272 report("Nothing to edit");
3276 report("Nothing to enter");
3279 case REQ_VIEW_CLOSE:
3280 /* XXX: Mark closed views by letting view->parent point to the
3281 * view itself. Parents to closed view should never be
3284 view->parent->parent != view->parent) {
3285 memset(display, 0, sizeof(display));
3287 display[current_view] = view->parent;
3288 view->parent = view;
3290 redraw_display(FALSE);
3299 report("Unknown key, press 'h' for help");
3308 * View backend utilities
3311 /* Parse author lines where the name may be empty:
3312 * author <email@address.tld> 1138474660 +0100
3315 parse_author_line(char *ident, char *author, size_t authorsize, struct tm *tm)
3317 char *nameend = strchr(ident, '<');
3318 char *emailend = strchr(ident, '>');
3320 if (nameend && emailend)
3321 *nameend = *emailend = 0;
3322 ident = chomp_string(ident);
3325 ident = chomp_string(nameend + 1);
3330 string_ncopy_do(author, authorsize, ident, strlen(ident));
3332 /* Parse epoch and timezone */
3333 if (emailend && emailend[1] == ' ') {
3334 char *secs = emailend + 2;
3335 char *zone = strchr(secs, ' ');
3336 time_t time = (time_t) atol(secs);
3338 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
3342 tz = ('0' - zone[1]) * 60 * 60 * 10;
3343 tz += ('0' - zone[2]) * 60 * 60;
3344 tz += ('0' - zone[3]) * 60;
3345 tz += ('0' - zone[4]) * 60;
3353 gmtime_r(&time, tm);
3357 static enum input_status
3358 select_commit_parent_handler(void *data, char *buf, int c)
3360 size_t parents = *(size_t *) data;
3367 parent = atoi(buf) * 10;
3370 if (parent > parents)
3376 select_commit_parent(const char *id, char rev[SIZEOF_REV])
3378 char buf[SIZEOF_STR * 4];
3379 const char *revlist_argv[] = {
3380 "git", "rev-list", "-1", "--parents", id, NULL
3384 if (!run_io_buf(revlist_argv, buf, sizeof(buf)) ||
3385 !*chomp_string(buf) ||
3386 (parents = (strlen(buf) / 40) - 1) < 0) {
3387 report("Failed to get parent information");
3390 } else if (parents == 0) {
3391 report("The selected commit has no parents");
3396 char prompt[SIZEOF_STR];
3399 if (!string_format(prompt, "Which parent? [1..%d] ", parents))
3401 result = prompt_input(prompt, select_commit_parent_handler, &parents);
3404 parents = atoi(result);
3407 string_copy_rev(rev, &buf[41 * parents]);
3416 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3418 char text[SIZEOF_STR];
3420 if (opt_line_number && draw_lineno(view, lineno))
3423 string_expand(text, sizeof(text), line->data, opt_tab_size);
3424 draw_text(view, line->type, text, TRUE);
3429 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3431 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3432 char refbuf[SIZEOF_STR];
3435 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3436 ref = chomp_string(refbuf);
3441 /* This is the only fatal call, since it can "corrupt" the buffer. */
3442 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3449 add_pager_refs(struct view *view, struct line *line)
3451 char buf[SIZEOF_STR];
3452 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3454 size_t bufpos = 0, refpos = 0;
3455 const char *sep = "Refs: ";
3456 bool is_tag = FALSE;
3458 assert(line->type == LINE_COMMIT);
3460 refs = get_refs(commit_id);
3462 if (view == VIEW(REQ_VIEW_DIFF))
3463 goto try_add_describe_ref;
3468 struct ref *ref = refs[refpos];
3469 const char *fmt = ref->tag ? "%s[%s]" :
3470 ref->remote ? "%s<%s>" : "%s%s";
3472 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3477 } while (refs[refpos++]->next);
3479 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3480 try_add_describe_ref:
3481 /* Add <tag>-g<commit_id> "fake" reference. */
3482 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3489 add_line_text(view, buf, LINE_PP_REFS);
3493 pager_read(struct view *view, char *data)
3500 line = add_line_text(view, data, get_line_type(data));
3504 if (line->type == LINE_COMMIT &&
3505 (view == VIEW(REQ_VIEW_DIFF) ||
3506 view == VIEW(REQ_VIEW_LOG)))
3507 add_pager_refs(view, line);
3513 pager_request(struct view *view, enum request request, struct line *line)
3517 if (request != REQ_ENTER)
3520 if (line->type == LINE_COMMIT &&
3521 (view == VIEW(REQ_VIEW_LOG) ||
3522 view == VIEW(REQ_VIEW_PAGER))) {
3523 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3527 /* Always scroll the view even if it was split. That way
3528 * you can use Enter to scroll through the log view and
3529 * split open each commit diff. */
3530 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3532 /* FIXME: A minor workaround. Scrolling the view will call report("")
3533 * but if we are scrolling a non-current view this won't properly
3534 * update the view title. */
3536 update_view_title(view);
3542 pager_grep(struct view *view, struct line *line)
3545 char *text = line->data;
3550 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3557 pager_select(struct view *view, struct line *line)
3559 if (line->type == LINE_COMMIT) {
3560 char *text = (char *)line->data + STRING_SIZE("commit ");
3562 if (view != VIEW(REQ_VIEW_PAGER))
3563 string_copy_rev(view->ref, text);
3564 string_copy_rev(ref_commit, text);
3568 static struct view_ops pager_ops = {
3579 static const char *log_argv[SIZEOF_ARG] = {
3580 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3584 log_request(struct view *view, enum request request, struct line *line)
3589 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3592 return pager_request(view, request, line);
3596 static struct view_ops log_ops = {
3607 static const char *diff_argv[SIZEOF_ARG] = {
3608 "git", "show", "--pretty=fuller", "--no-color", "--root",
3609 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3612 static struct view_ops diff_ops = {
3628 help_open(struct view *view)
3630 char buf[SIZEOF_STR];
3634 if (view->lines > 0)
3637 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3639 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3642 if (req_info[i].request == REQ_NONE)
3645 if (!req_info[i].request) {
3646 add_line_text(view, "", LINE_DEFAULT);
3647 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3651 key = get_key(req_info[i].request);
3653 key = "(no key defined)";
3655 for (bufpos = 0; bufpos <= req_info[i].namelen; bufpos++) {
3656 buf[bufpos] = tolower(req_info[i].name[bufpos]);
3657 if (buf[bufpos] == '_')
3661 add_line_format(view, LINE_DEFAULT, " %-25s %-20s %s",
3662 key, buf, req_info[i].help);
3666 add_line_text(view, "", LINE_DEFAULT);
3667 add_line_text(view, "External commands:", LINE_DEFAULT);
3670 for (i = 0; i < run_requests; i++) {
3671 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3678 key = get_key_name(req->key);
3680 key = "(no key defined)";
3682 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3683 if (!string_format_from(buf, &bufpos, "%s%s",
3684 argc ? " " : "", req->argv[argc]))
3687 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3688 keymap_table[req->keymap].name, key, buf);
3694 static struct view_ops help_ops = {
3710 struct tree_stack_entry {
3711 struct tree_stack_entry *prev; /* Entry below this in the stack */
3712 unsigned long lineno; /* Line number to restore */
3713 char *name; /* Position of name in opt_path */
3716 /* The top of the path stack. */
3717 static struct tree_stack_entry *tree_stack = NULL;
3718 unsigned long tree_lineno = 0;
3721 pop_tree_stack_entry(void)
3723 struct tree_stack_entry *entry = tree_stack;
3725 tree_lineno = entry->lineno;
3727 tree_stack = entry->prev;
3732 push_tree_stack_entry(const char *name, unsigned long lineno)
3734 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3735 size_t pathlen = strlen(opt_path);
3740 entry->prev = tree_stack;
3741 entry->name = opt_path + pathlen;
3744 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3745 pop_tree_stack_entry();
3749 /* Move the current line to the first tree entry. */
3751 entry->lineno = lineno;
3754 /* Parse output from git-ls-tree(1):
3756 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3759 #define SIZEOF_TREE_ATTR \
3760 STRING_SIZE("100644 blob f931e1d229c3e185caad4449bf5b66ed72462657\t")
3762 #define SIZEOF_TREE_MODE \
3763 STRING_SIZE("100644 ")
3765 #define TREE_ID_OFFSET \
3766 STRING_SIZE("100644 blob ")
3769 char id[SIZEOF_REV];
3771 struct tm time; /* Date from the author ident. */
3772 char author[75]; /* Author of the commit. */
3777 tree_path(struct line *line)
3779 return ((struct tree_entry *) line->data)->name;
3784 tree_compare_entry(struct line *line1, struct line *line2)
3786 if (line1->type != line2->type)
3787 return line1->type == LINE_TREE_DIR ? -1 : 1;
3788 return strcmp(tree_path(line1), tree_path(line2));
3791 static struct line *
3792 tree_entry(struct view *view, enum line_type type, const char *path,
3793 const char *mode, const char *id)
3795 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3796 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3798 if (!entry || !line) {
3803 strncpy(entry->name, path, strlen(path));
3805 entry->mode = strtoul(mode, NULL, 8);
3807 string_copy_rev(entry->id, id);
3813 tree_read_date(struct view *view, char *text, bool *read_date)
3815 static char author_name[SIZEOF_STR];
3816 static struct tm author_time;
3818 if (!text && *read_date) {
3823 char *path = *opt_path ? opt_path : ".";
3824 /* Find next entry to process */
3825 const char *log_file[] = {
3826 "git", "log", "--no-color", "--pretty=raw",
3827 "--cc", "--raw", view->id, "--", path, NULL
3832 tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL);
3833 report("Tree is empty");
3837 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3838 report("Failed to load tree data");
3842 done_io(view->pipe);
3847 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3848 parse_author_line(text + STRING_SIZE("author "),
3849 author_name, sizeof(author_name), &author_time);
3851 } else if (*text == ':') {
3853 size_t annotated = 1;
3856 pos = strchr(text, '\t');
3860 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3861 text += strlen(opt_prefix);
3862 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3863 text += strlen(opt_path);
3864 pos = strchr(text, '/');
3868 for (i = 1; i < view->lines; i++) {
3869 struct line *line = &view->line[i];
3870 struct tree_entry *entry = line->data;
3872 annotated += !!*entry->author;
3873 if (*entry->author || strcmp(entry->name, text))
3876 string_copy(entry->author, author_name);
3877 memcpy(&entry->time, &author_time, sizeof(entry->time));
3882 if (annotated == view->lines)
3883 kill_io(view->pipe);
3889 tree_read(struct view *view, char *text)
3891 static bool read_date = FALSE;
3892 struct tree_entry *data;
3893 struct line *entry, *line;
3894 enum line_type type;
3895 size_t textlen = text ? strlen(text) : 0;
3896 char *path = text + SIZEOF_TREE_ATTR;
3898 if (read_date || !text)
3899 return tree_read_date(view, text, &read_date);
3901 if (textlen <= SIZEOF_TREE_ATTR)
3903 if (view->lines == 0 &&
3904 !tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL))
3907 /* Strip the path part ... */
3909 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3910 size_t striplen = strlen(opt_path);
3912 if (pathlen > striplen)
3913 memmove(path, path + striplen,
3914 pathlen - striplen + 1);
3916 /* Insert "link" to parent directory. */
3917 if (view->lines == 1 &&
3918 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3922 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
3923 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3928 /* Skip "Directory ..." and ".." line. */
3929 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3930 if (tree_compare_entry(line, entry) <= 0)
3933 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3937 for (; line <= entry; line++)
3938 line->dirty = line->cleareol = 1;
3942 if (tree_lineno > view->lineno) {
3943 view->lineno = tree_lineno;
3951 tree_draw(struct view *view, struct line *line, unsigned int lineno)
3953 struct tree_entry *entry = line->data;
3955 if (line->type == LINE_TREE_HEAD) {
3956 if (draw_text(view, line->type, "Directory path /", TRUE))
3959 if (draw_mode(view, entry->mode))
3962 if (opt_author && draw_author(view, entry->author))
3965 if (opt_date && draw_date(view, *entry->author ? &entry->time : NULL))
3968 if (draw_text(view, line->type, entry->name, TRUE))
3976 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
3977 int fd = mkstemp(file);
3980 report("Failed to create temporary file");
3981 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
3982 report("Failed to save blob data to file");
3984 open_editor(FALSE, file);
3990 tree_request(struct view *view, enum request request, struct line *line)
3992 enum open_flags flags;
3995 case REQ_VIEW_BLAME:
3996 if (line->type != LINE_TREE_FILE) {
3997 report("Blame only supported for files");
4001 string_copy(opt_ref, view->vid);
4005 if (line->type != LINE_TREE_FILE) {
4006 report("Edit only supported for files");
4007 } else if (!is_head_commit(view->vid)) {
4010 open_editor(TRUE, opt_file);
4016 /* quit view if at top of tree */
4017 return REQ_VIEW_CLOSE;
4020 line = &view->line[1];
4030 /* Cleanup the stack if the tree view is at a different tree. */
4031 while (!*opt_path && tree_stack)
4032 pop_tree_stack_entry();
4034 switch (line->type) {
4036 /* Depending on whether it is a subdirectory or parent link
4037 * mangle the path buffer. */
4038 if (line == &view->line[1] && *opt_path) {
4039 pop_tree_stack_entry();
4042 const char *basename = tree_path(line);
4044 push_tree_stack_entry(basename, view->lineno);
4047 /* Trees and subtrees share the same ID, so they are not not
4048 * unique like blobs. */
4049 flags = OPEN_RELOAD;
4050 request = REQ_VIEW_TREE;
4053 case LINE_TREE_FILE:
4054 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4055 request = REQ_VIEW_BLOB;
4062 open_view(view, request, flags);
4063 if (request == REQ_VIEW_TREE)
4064 view->lineno = tree_lineno;
4070 tree_select(struct view *view, struct line *line)
4072 struct tree_entry *entry = line->data;
4074 if (line->type == LINE_TREE_FILE) {
4075 string_copy_rev(ref_blob, entry->id);
4076 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4078 } else if (line->type != LINE_TREE_DIR) {
4082 string_copy_rev(view->ref, entry->id);
4085 static const char *tree_argv[SIZEOF_ARG] = {
4086 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4089 static struct view_ops tree_ops = {
4101 blob_read(struct view *view, char *line)
4105 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4109 blob_request(struct view *view, enum request request, struct line *line)
4116 return pager_request(view, request, line);
4120 static const char *blob_argv[SIZEOF_ARG] = {
4121 "git", "cat-file", "blob", "%(blob)", NULL
4124 static struct view_ops blob_ops = {
4138 * Loading the blame view is a two phase job:
4140 * 1. File content is read either using opt_file from the
4141 * filesystem or using git-cat-file.
4142 * 2. Then blame information is incrementally added by
4143 * reading output from git-blame.
4146 static const char *blame_head_argv[] = {
4147 "git", "blame", "--incremental", "--", "%(file)", NULL
4150 static const char *blame_ref_argv[] = {
4151 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4154 static const char *blame_cat_file_argv[] = {
4155 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4158 struct blame_commit {
4159 char id[SIZEOF_REV]; /* SHA1 ID. */
4160 char title[128]; /* First line of the commit message. */
4161 char author[75]; /* Author of the commit. */
4162 struct tm time; /* Date from the author ident. */
4163 char filename[128]; /* Name of file. */
4164 bool has_previous; /* Was a "previous" line detected. */
4168 struct blame_commit *commit;
4173 blame_open(struct view *view)
4175 if (*opt_ref || !io_open(&view->io, opt_file)) {
4176 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4180 setup_update(view, opt_file);
4181 string_format(view->ref, "%s ...", opt_file);
4186 static struct blame_commit *
4187 get_blame_commit(struct view *view, const char *id)
4191 for (i = 0; i < view->lines; i++) {
4192 struct blame *blame = view->line[i].data;
4197 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4198 return blame->commit;
4202 struct blame_commit *commit = calloc(1, sizeof(*commit));
4205 string_ncopy(commit->id, id, SIZEOF_REV);
4211 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4213 const char *pos = *posref;
4216 pos = strchr(pos + 1, ' ');
4217 if (!pos || !isdigit(pos[1]))
4219 *number = atoi(pos + 1);
4220 if (*number < min || *number > max)
4227 static struct blame_commit *
4228 parse_blame_commit(struct view *view, const char *text, int *blamed)
4230 struct blame_commit *commit;
4231 struct blame *blame;
4232 const char *pos = text + SIZEOF_REV - 1;
4236 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
4239 if (!parse_number(&pos, &lineno, 1, view->lines) ||
4240 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4243 commit = get_blame_commit(view, text);
4249 struct line *line = &view->line[lineno + group - 1];
4252 blame->commit = commit;
4260 blame_read_file(struct view *view, const char *line, bool *read_file)
4263 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4266 if (view->lines == 0 && !view->parent)
4267 die("No blame exist for %s", view->vid);
4269 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4270 report("Failed to load blame data");
4274 done_io(view->pipe);
4280 size_t linelen = string_expand_length(line, opt_tab_size);
4281 struct blame *blame = malloc(sizeof(*blame) + linelen);
4286 blame->commit = NULL;
4287 string_expand(blame->text, linelen + 1, line, opt_tab_size);
4288 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4293 match_blame_header(const char *name, char **line)
4295 size_t namelen = strlen(name);
4296 bool matched = !strncmp(name, *line, namelen);
4305 blame_read(struct view *view, char *line)
4307 static struct blame_commit *commit = NULL;
4308 static int blamed = 0;
4309 static time_t author_time;
4310 static bool read_file = TRUE;
4313 return blame_read_file(view, line, &read_file);
4320 string_format(view->ref, "%s", view->vid);
4321 if (view_is_displayed(view)) {
4322 update_view_title(view);
4323 redraw_view_from(view, 0);
4329 commit = parse_blame_commit(view, line, &blamed);
4330 string_format(view->ref, "%s %2d%%", view->vid,
4331 view->lines ? blamed * 100 / view->lines : 0);
4333 } else if (match_blame_header("author ", &line)) {
4334 string_ncopy(commit->author, line, strlen(line));
4336 } else if (match_blame_header("author-time ", &line)) {
4337 author_time = (time_t) atol(line);
4339 } else if (match_blame_header("author-tz ", &line)) {
4342 tz = ('0' - line[1]) * 60 * 60 * 10;
4343 tz += ('0' - line[2]) * 60 * 60;
4344 tz += ('0' - line[3]) * 60;
4345 tz += ('0' - line[4]) * 60;
4351 gmtime_r(&author_time, &commit->time);
4353 } else if (match_blame_header("summary ", &line)) {
4354 string_ncopy(commit->title, line, strlen(line));
4356 } else if (match_blame_header("previous ", &line)) {
4357 commit->has_previous = TRUE;
4359 } else if (match_blame_header("filename ", &line)) {
4360 string_ncopy(commit->filename, line, strlen(line));
4368 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4370 struct blame *blame = line->data;
4371 struct tm *time = NULL;
4372 const char *id = NULL, *author = NULL;
4374 if (blame->commit && *blame->commit->filename) {
4375 id = blame->commit->id;
4376 author = blame->commit->author;
4377 time = &blame->commit->time;
4380 if (opt_date && draw_date(view, time))
4383 if (opt_author && draw_author(view, author))
4386 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4389 if (draw_lineno(view, lineno))
4392 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4397 check_blame_commit(struct blame *blame)
4400 report("Commit data not loaded yet");
4401 else if (!strcmp(blame->commit->id, NULL_ID))
4402 report("No commit exist for the selected line");
4409 blame_request(struct view *view, enum request request, struct line *line)
4411 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4412 struct blame *blame = line->data;
4415 case REQ_VIEW_BLAME:
4416 if (check_blame_commit(blame)) {
4417 string_copy(opt_ref, blame->commit->id);
4418 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4423 if (check_blame_commit(blame) &&
4424 select_commit_parent(blame->commit->id, opt_ref))
4425 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4429 if (!blame->commit) {
4430 report("No commit loaded yet");
4434 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4435 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4438 if (!strcmp(blame->commit->id, NULL_ID)) {
4439 struct view *diff = VIEW(REQ_VIEW_DIFF);
4440 const char *diff_index_argv[] = {
4441 "git", "diff-index", "--root", "--patch-with-stat",
4442 "-C", "-M", "HEAD", "--", view->vid, NULL
4445 if (!blame->commit->has_previous) {
4446 diff_index_argv[1] = "diff";
4447 diff_index_argv[2] = "--no-color";
4448 diff_index_argv[6] = "--";
4449 diff_index_argv[7] = "/dev/null";
4452 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4453 report("Failed to allocate diff command");
4456 flags |= OPEN_PREPARED;
4459 open_view(view, REQ_VIEW_DIFF, flags);
4460 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4461 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4472 blame_grep(struct view *view, struct line *line)
4474 struct blame *blame = line->data;
4475 struct blame_commit *commit = blame->commit;
4478 #define MATCH(text, on) \
4479 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4482 char buf[DATE_COLS + 1];
4484 if (MATCH(commit->title, 1) ||
4485 MATCH(commit->author, opt_author) ||
4486 MATCH(commit->id, opt_date))
4489 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4494 return MATCH(blame->text, 1);
4500 blame_select(struct view *view, struct line *line)
4502 struct blame *blame = line->data;
4503 struct blame_commit *commit = blame->commit;
4508 if (!strcmp(commit->id, NULL_ID))
4509 string_ncopy(ref_commit, "HEAD", 4);
4511 string_copy_rev(ref_commit, commit->id);
4514 static struct view_ops blame_ops = {
4533 char rev[SIZEOF_REV];
4534 char name[SIZEOF_STR];
4538 char rev[SIZEOF_REV];
4539 char name[SIZEOF_STR];
4543 static char status_onbranch[SIZEOF_STR];
4544 static struct status stage_status;
4545 static enum line_type stage_line_type;
4546 static size_t stage_chunks;
4547 static int *stage_chunk;
4549 /* This should work even for the "On branch" line. */
4551 status_has_none(struct view *view, struct line *line)
4553 return line < view->line + view->lines && !line[1].data;
4556 /* Get fields from the diff line:
4557 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4560 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4562 const char *old_mode = buf + 1;
4563 const char *new_mode = buf + 8;
4564 const char *old_rev = buf + 15;
4565 const char *new_rev = buf + 56;
4566 const char *status = buf + 97;
4569 old_mode[-1] != ':' ||
4570 new_mode[-1] != ' ' ||
4571 old_rev[-1] != ' ' ||
4572 new_rev[-1] != ' ' ||
4576 file->status = *status;
4578 string_copy_rev(file->old.rev, old_rev);
4579 string_copy_rev(file->new.rev, new_rev);
4581 file->old.mode = strtoul(old_mode, NULL, 8);
4582 file->new.mode = strtoul(new_mode, NULL, 8);
4584 file->old.name[0] = file->new.name[0] = 0;
4590 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4592 struct status *unmerged = NULL;
4596 if (!run_io(&io, argv, NULL, IO_RD))
4599 add_line_data(view, NULL, type);
4601 while ((buf = io_get(&io, 0, TRUE))) {
4602 struct status *file = unmerged;
4605 file = calloc(1, sizeof(*file));
4606 if (!file || !add_line_data(view, file, type))
4610 /* Parse diff info part. */
4612 file->status = status;
4614 string_copy(file->old.rev, NULL_ID);
4616 } else if (!file->status || file == unmerged) {
4617 if (!status_get_diff(file, buf, strlen(buf)))
4620 buf = io_get(&io, 0, TRUE);
4624 /* Collapse all modified entries that follow an
4625 * associated unmerged entry. */
4626 if (unmerged == file) {
4627 unmerged->status = 'U';
4629 } else if (file->status == 'U') {
4634 /* Grab the old name for rename/copy. */
4635 if (!*file->old.name &&
4636 (file->status == 'R' || file->status == 'C')) {
4637 string_ncopy(file->old.name, buf, strlen(buf));
4639 buf = io_get(&io, 0, TRUE);
4644 /* git-ls-files just delivers a NUL separated list of
4645 * file names similar to the second half of the
4646 * git-diff-* output. */
4647 string_ncopy(file->new.name, buf, strlen(buf));
4648 if (!*file->old.name)
4649 string_copy(file->old.name, file->new.name);
4653 if (io_error(&io)) {
4659 if (!view->line[view->lines - 1].data)
4660 add_line_data(view, NULL, LINE_STAT_NONE);
4666 /* Don't show unmerged entries in the staged section. */
4667 static const char *status_diff_index_argv[] = {
4668 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4669 "--cached", "-M", "HEAD", NULL
4672 static const char *status_diff_files_argv[] = {
4673 "git", "diff-files", "-z", NULL
4676 static const char *status_list_other_argv[] = {
4677 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4680 static const char *status_list_no_head_argv[] = {
4681 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4684 static const char *update_index_argv[] = {
4685 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4688 /* Restore the previous line number to stay in the context or select a
4689 * line with something that can be updated. */
4691 status_restore(struct view *view)
4693 if (view->p_lineno >= view->lines)
4694 view->p_lineno = view->lines - 1;
4695 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4697 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4700 /* If the above fails, always skip the "On branch" line. */
4701 if (view->p_lineno < view->lines)
4702 view->lineno = view->p_lineno;
4706 if (view->lineno < view->offset)
4707 view->offset = view->lineno;
4708 else if (view->offset + view->height <= view->lineno)
4709 view->offset = view->lineno - view->height + 1;
4711 view->p_restore = FALSE;
4714 /* First parse staged info using git-diff-index(1), then parse unstaged
4715 * info using git-diff-files(1), and finally untracked files using
4716 * git-ls-files(1). */
4718 status_open(struct view *view)
4722 add_line_data(view, NULL, LINE_STAT_HEAD);
4723 if (is_initial_commit())
4724 string_copy(status_onbranch, "Initial commit");
4725 else if (!*opt_head)
4726 string_copy(status_onbranch, "Not currently on any branch");
4727 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4730 run_io_bg(update_index_argv);
4732 if (is_initial_commit()) {
4733 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4735 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4739 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4740 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4743 /* Restore the exact position or use the specialized restore
4745 if (!view->p_restore)
4746 status_restore(view);
4751 status_draw(struct view *view, struct line *line, unsigned int lineno)
4753 struct status *status = line->data;
4754 enum line_type type;
4758 switch (line->type) {
4759 case LINE_STAT_STAGED:
4760 type = LINE_STAT_SECTION;
4761 text = "Changes to be committed:";
4764 case LINE_STAT_UNSTAGED:
4765 type = LINE_STAT_SECTION;
4766 text = "Changed but not updated:";
4769 case LINE_STAT_UNTRACKED:
4770 type = LINE_STAT_SECTION;
4771 text = "Untracked files:";
4774 case LINE_STAT_NONE:
4775 type = LINE_DEFAULT;
4776 text = " (no files)";
4779 case LINE_STAT_HEAD:
4780 type = LINE_STAT_HEAD;
4781 text = status_onbranch;
4788 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4790 buf[0] = status->status;
4791 if (draw_text(view, line->type, buf, TRUE))
4793 type = LINE_DEFAULT;
4794 text = status->new.name;
4797 draw_text(view, type, text, TRUE);
4802 status_enter(struct view *view, struct line *line)
4804 struct status *status = line->data;
4805 const char *oldpath = status ? status->old.name : NULL;
4806 /* Diffs for unmerged entries are empty when passing the new
4807 * path, so leave it empty. */
4808 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4810 enum open_flags split;
4811 struct view *stage = VIEW(REQ_VIEW_STAGE);
4813 if (line->type == LINE_STAT_NONE ||
4814 (!status && line[1].type == LINE_STAT_NONE)) {
4815 report("No file to diff");
4819 switch (line->type) {
4820 case LINE_STAT_STAGED:
4821 if (is_initial_commit()) {
4822 const char *no_head_diff_argv[] = {
4823 "git", "diff", "--no-color", "--patch-with-stat",
4824 "--", "/dev/null", newpath, NULL
4827 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4830 const char *index_show_argv[] = {
4831 "git", "diff-index", "--root", "--patch-with-stat",
4832 "-C", "-M", "--cached", "HEAD", "--",
4833 oldpath, newpath, NULL
4836 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4841 info = "Staged changes to %s";
4843 info = "Staged changes";
4846 case LINE_STAT_UNSTAGED:
4848 const char *files_show_argv[] = {
4849 "git", "diff-files", "--root", "--patch-with-stat",
4850 "-C", "-M", "--", oldpath, newpath, NULL
4853 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4856 info = "Unstaged changes to %s";
4858 info = "Unstaged changes";
4861 case LINE_STAT_UNTRACKED:
4863 report("No file to show");
4867 if (!suffixcmp(status->new.name, -1, "/")) {
4868 report("Cannot display a directory");
4872 if (!prepare_update_file(stage, newpath))
4874 info = "Untracked file %s";
4877 case LINE_STAT_HEAD:
4881 die("line type %d not handled in switch", line->type);
4884 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4885 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
4886 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4888 stage_status = *status;
4890 memset(&stage_status, 0, sizeof(stage_status));
4893 stage_line_type = line->type;
4895 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4902 status_exists(struct status *status, enum line_type type)
4904 struct view *view = VIEW(REQ_VIEW_STATUS);
4905 unsigned long lineno;
4907 for (lineno = 0; lineno < view->lines; lineno++) {
4908 struct line *line = &view->line[lineno];
4909 struct status *pos = line->data;
4911 if (line->type != type)
4913 if (!pos && (!status || !status->status) && line[1].data) {
4914 select_view_line(view, lineno);
4917 if (pos && !strcmp(status->new.name, pos->new.name)) {
4918 select_view_line(view, lineno);
4928 status_update_prepare(struct io *io, enum line_type type)
4930 const char *staged_argv[] = {
4931 "git", "update-index", "-z", "--index-info", NULL
4933 const char *others_argv[] = {
4934 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4938 case LINE_STAT_STAGED:
4939 return run_io(io, staged_argv, opt_cdup, IO_WR);
4941 case LINE_STAT_UNSTAGED:
4942 return run_io(io, others_argv, opt_cdup, IO_WR);
4944 case LINE_STAT_UNTRACKED:
4945 return run_io(io, others_argv, NULL, IO_WR);
4948 die("line type %d not handled in switch", type);
4954 status_update_write(struct io *io, struct status *status, enum line_type type)
4956 char buf[SIZEOF_STR];
4960 case LINE_STAT_STAGED:
4961 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4964 status->old.name, 0))
4968 case LINE_STAT_UNSTAGED:
4969 case LINE_STAT_UNTRACKED:
4970 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4975 die("line type %d not handled in switch", type);
4978 return io_write(io, buf, bufsize);
4982 status_update_file(struct status *status, enum line_type type)
4987 if (!status_update_prepare(&io, type))
4990 result = status_update_write(&io, status, type);
4996 status_update_files(struct view *view, struct line *line)
5000 struct line *pos = view->line + view->lines;
5004 if (!status_update_prepare(&io, line->type))
5007 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5010 for (file = 0, done = 0; result && file < files; line++, file++) {
5011 int almost_done = file * 100 / files;
5013 if (almost_done > done) {
5015 string_format(view->ref, "updating file %u of %u (%d%% done)",
5017 update_view_title(view);
5019 result = status_update_write(&io, line->data, line->type);
5027 status_update(struct view *view)
5029 struct line *line = &view->line[view->lineno];
5031 assert(view->lines);
5034 /* This should work even for the "On branch" line. */
5035 if (line < view->line + view->lines && !line[1].data) {
5036 report("Nothing to update");
5040 if (!status_update_files(view, line + 1)) {
5041 report("Failed to update file status");
5045 } else if (!status_update_file(line->data, line->type)) {
5046 report("Failed to update file status");
5054 status_revert(struct status *status, enum line_type type, bool has_none)
5056 if (!status || type != LINE_STAT_UNSTAGED) {
5057 if (type == LINE_STAT_STAGED) {
5058 report("Cannot revert changes to staged files");
5059 } else if (type == LINE_STAT_UNTRACKED) {
5060 report("Cannot revert changes to untracked files");
5061 } else if (has_none) {
5062 report("Nothing to revert");
5064 report("Cannot revert changes to multiple files");
5069 char mode[10] = "100644";
5070 const char *reset_argv[] = {
5071 "git", "update-index", "--cacheinfo", mode,
5072 status->old.rev, status->old.name, NULL
5074 const char *checkout_argv[] = {
5075 "git", "checkout", "--", status->old.name, NULL
5078 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5080 string_format(mode, "%o", status->old.mode);
5081 return (status->status != 'U' || run_io_fg(reset_argv, opt_cdup)) &&
5082 run_io_fg(checkout_argv, opt_cdup);
5087 status_request(struct view *view, enum request request, struct line *line)
5089 struct status *status = line->data;
5092 case REQ_STATUS_UPDATE:
5093 if (!status_update(view))
5097 case REQ_STATUS_REVERT:
5098 if (!status_revert(status, line->type, status_has_none(view, line)))
5102 case REQ_STATUS_MERGE:
5103 if (!status || status->status != 'U') {
5104 report("Merging only possible for files with unmerged status ('U').");
5107 open_mergetool(status->new.name);
5113 if (status->status == 'D') {
5114 report("File has been deleted.");
5118 open_editor(status->status != '?', status->new.name);
5121 case REQ_VIEW_BLAME:
5123 string_copy(opt_file, status->new.name);
5129 /* After returning the status view has been split to
5130 * show the stage view. No further reloading is
5132 status_enter(view, line);
5136 /* Simply reload the view. */
5143 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5149 status_select(struct view *view, struct line *line)
5151 struct status *status = line->data;
5152 char file[SIZEOF_STR] = "all files";
5156 if (status && !string_format(file, "'%s'", status->new.name))
5159 if (!status && line[1].type == LINE_STAT_NONE)
5162 switch (line->type) {
5163 case LINE_STAT_STAGED:
5164 text = "Press %s to unstage %s for commit";
5167 case LINE_STAT_UNSTAGED:
5168 text = "Press %s to stage %s for commit";
5171 case LINE_STAT_UNTRACKED:
5172 text = "Press %s to stage %s for addition";
5175 case LINE_STAT_HEAD:
5176 case LINE_STAT_NONE:
5177 text = "Nothing to update";
5181 die("line type %d not handled in switch", line->type);
5184 if (status && status->status == 'U') {
5185 text = "Press %s to resolve conflict in %s";
5186 key = get_key(REQ_STATUS_MERGE);
5189 key = get_key(REQ_STATUS_UPDATE);
5192 string_format(view->ref, text, key, file);
5196 status_grep(struct view *view, struct line *line)
5198 struct status *status = line->data;
5199 enum { S_STATUS, S_NAME, S_END } state;
5206 for (state = S_STATUS; state < S_END; state++) {
5210 case S_NAME: text = status->new.name; break;
5212 buf[0] = status->status;
5220 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5227 static struct view_ops status_ops = {
5240 stage_diff_write(struct io *io, struct line *line, struct line *end)
5242 while (line < end) {
5243 if (!io_write(io, line->data, strlen(line->data)) ||
5244 !io_write(io, "\n", 1))
5247 if (line->type == LINE_DIFF_CHUNK ||
5248 line->type == LINE_DIFF_HEADER)
5255 static struct line *
5256 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5258 for (; view->line < line; line--)
5259 if (line->type == type)
5266 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5268 const char *apply_argv[SIZEOF_ARG] = {
5269 "git", "apply", "--whitespace=nowarn", NULL
5271 struct line *diff_hdr;
5275 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5280 apply_argv[argc++] = "--cached";
5281 if (revert || stage_line_type == LINE_STAT_STAGED)
5282 apply_argv[argc++] = "-R";
5283 apply_argv[argc++] = "-";
5284 apply_argv[argc++] = NULL;
5285 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5288 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5289 !stage_diff_write(&io, chunk, view->line + view->lines))
5293 run_io_bg(update_index_argv);
5295 return chunk ? TRUE : FALSE;
5299 stage_update(struct view *view, struct line *line)
5301 struct line *chunk = NULL;
5303 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5304 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5307 if (!stage_apply_chunk(view, chunk, FALSE)) {
5308 report("Failed to apply chunk");
5312 } else if (!stage_status.status) {
5313 view = VIEW(REQ_VIEW_STATUS);
5315 for (line = view->line; line < view->line + view->lines; line++)
5316 if (line->type == stage_line_type)
5319 if (!status_update_files(view, line + 1)) {
5320 report("Failed to update files");
5324 } else if (!status_update_file(&stage_status, stage_line_type)) {
5325 report("Failed to update file");
5333 stage_revert(struct view *view, struct line *line)
5335 struct line *chunk = NULL;
5337 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5338 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5341 if (!prompt_yesno("Are you sure you want to revert changes?"))
5344 if (!stage_apply_chunk(view, chunk, TRUE)) {
5345 report("Failed to revert chunk");
5351 return status_revert(stage_status.status ? &stage_status : NULL,
5352 stage_line_type, FALSE);
5358 stage_next(struct view *view, struct line *line)
5362 if (!stage_chunks) {
5363 static size_t alloc = 0;
5366 for (line = view->line; line < view->line + view->lines; line++) {
5367 if (line->type != LINE_DIFF_CHUNK)
5370 tmp = realloc_items(stage_chunk, &alloc,
5371 stage_chunks, sizeof(*tmp));
5373 report("Allocation failure");
5378 stage_chunk[stage_chunks++] = line - view->line;
5382 for (i = 0; i < stage_chunks; i++) {
5383 if (stage_chunk[i] > view->lineno) {
5384 do_scroll_view(view, stage_chunk[i] - view->lineno);
5385 report("Chunk %d of %d", i + 1, stage_chunks);
5390 report("No next chunk found");
5394 stage_request(struct view *view, enum request request, struct line *line)
5397 case REQ_STATUS_UPDATE:
5398 if (!stage_update(view, line))
5402 case REQ_STATUS_REVERT:
5403 if (!stage_revert(view, line))
5407 case REQ_STAGE_NEXT:
5408 if (stage_line_type == LINE_STAT_UNTRACKED) {
5409 report("File is untracked; press %s to add",
5410 get_key(REQ_STATUS_UPDATE));
5413 stage_next(view, line);
5417 if (!stage_status.new.name[0])
5419 if (stage_status.status == 'D') {
5420 report("File has been deleted.");
5424 open_editor(stage_status.status != '?', stage_status.new.name);
5428 /* Reload everything ... */
5431 case REQ_VIEW_BLAME:
5432 if (stage_status.new.name[0]) {
5433 string_copy(opt_file, stage_status.new.name);
5439 return pager_request(view, request, line);
5445 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5446 open_view(view, REQ_VIEW_STATUS, OPEN_REFRESH);
5448 /* Check whether the staged entry still exists, and close the
5449 * stage view if it doesn't. */
5450 if (!status_exists(&stage_status, stage_line_type)) {
5451 status_restore(VIEW(REQ_VIEW_STATUS));
5452 return REQ_VIEW_CLOSE;
5455 if (stage_line_type == LINE_STAT_UNTRACKED) {
5456 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5457 report("Cannot display a directory");
5461 if (!prepare_update_file(view, stage_status.new.name)) {
5462 report("Failed to open file: %s", strerror(errno));
5466 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5471 static struct view_ops stage_ops = {
5488 char id[SIZEOF_REV]; /* SHA1 ID. */
5489 char title[128]; /* First line of the commit message. */
5490 char author[75]; /* Author of the commit. */
5491 struct tm time; /* Date from the author ident. */
5492 struct ref **refs; /* Repository references. */
5493 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5494 size_t graph_size; /* The width of the graph array. */
5495 bool has_parents; /* Rewritten --parents seen. */
5498 /* Size of rev graph with no "padding" columns */
5499 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5502 struct rev_graph *prev, *next, *parents;
5503 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5505 struct commit *commit;
5507 unsigned int boundary:1;
5510 /* Parents of the commit being visualized. */
5511 static struct rev_graph graph_parents[4];
5513 /* The current stack of revisions on the graph. */
5514 static struct rev_graph graph_stacks[4] = {
5515 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5516 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5517 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5518 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5522 graph_parent_is_merge(struct rev_graph *graph)
5524 return graph->parents->size > 1;
5528 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5530 struct commit *commit = graph->commit;
5532 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5533 commit->graph[commit->graph_size++] = symbol;
5537 clear_rev_graph(struct rev_graph *graph)
5539 graph->boundary = 0;
5540 graph->size = graph->pos = 0;
5541 graph->commit = NULL;
5542 memset(graph->parents, 0, sizeof(*graph->parents));
5546 done_rev_graph(struct rev_graph *graph)
5548 if (graph_parent_is_merge(graph) &&
5549 graph->pos < graph->size - 1 &&
5550 graph->next->size == graph->size + graph->parents->size - 1) {
5551 size_t i = graph->pos + graph->parents->size - 1;
5553 graph->commit->graph_size = i * 2;
5554 while (i < graph->next->size - 1) {
5555 append_to_rev_graph(graph, ' ');
5556 append_to_rev_graph(graph, '\\');
5561 clear_rev_graph(graph);
5565 push_rev_graph(struct rev_graph *graph, const char *parent)
5569 /* "Collapse" duplicate parents lines.
5571 * FIXME: This needs to also update update the drawn graph but
5572 * for now it just serves as a method for pruning graph lines. */
5573 for (i = 0; i < graph->size; i++)
5574 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5577 if (graph->size < SIZEOF_REVITEMS) {
5578 string_copy_rev(graph->rev[graph->size++], parent);
5583 get_rev_graph_symbol(struct rev_graph *graph)
5587 if (graph->boundary)
5588 symbol = REVGRAPH_BOUND;
5589 else if (graph->parents->size == 0)
5590 symbol = REVGRAPH_INIT;
5591 else if (graph_parent_is_merge(graph))
5592 symbol = REVGRAPH_MERGE;
5593 else if (graph->pos >= graph->size)
5594 symbol = REVGRAPH_BRANCH;
5596 symbol = REVGRAPH_COMMIT;
5602 draw_rev_graph(struct rev_graph *graph)
5605 chtype separator, line;
5607 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5608 static struct rev_filler fillers[] = {
5614 chtype symbol = get_rev_graph_symbol(graph);
5615 struct rev_filler *filler;
5618 if (opt_line_graphics)
5619 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5621 filler = &fillers[DEFAULT];
5623 for (i = 0; i < graph->pos; i++) {
5624 append_to_rev_graph(graph, filler->line);
5625 if (graph_parent_is_merge(graph->prev) &&
5626 graph->prev->pos == i)
5627 filler = &fillers[RSHARP];
5629 append_to_rev_graph(graph, filler->separator);
5632 /* Place the symbol for this revision. */
5633 append_to_rev_graph(graph, symbol);
5635 if (graph->prev->size > graph->size)
5636 filler = &fillers[RDIAG];
5638 filler = &fillers[DEFAULT];
5642 for (; i < graph->size; i++) {
5643 append_to_rev_graph(graph, filler->separator);
5644 append_to_rev_graph(graph, filler->line);
5645 if (graph_parent_is_merge(graph->prev) &&
5646 i < graph->prev->pos + graph->parents->size)
5647 filler = &fillers[RSHARP];
5648 if (graph->prev->size > graph->size)
5649 filler = &fillers[LDIAG];
5652 if (graph->prev->size > graph->size) {
5653 append_to_rev_graph(graph, filler->separator);
5654 if (filler->line != ' ')
5655 append_to_rev_graph(graph, filler->line);
5659 /* Prepare the next rev graph */
5661 prepare_rev_graph(struct rev_graph *graph)
5665 /* First, traverse all lines of revisions up to the active one. */
5666 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5667 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5670 push_rev_graph(graph->next, graph->rev[graph->pos]);
5673 /* Interleave the new revision parent(s). */
5674 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5675 push_rev_graph(graph->next, graph->parents->rev[i]);
5677 /* Lastly, put any remaining revisions. */
5678 for (i = graph->pos + 1; i < graph->size; i++)
5679 push_rev_graph(graph->next, graph->rev[i]);
5683 update_rev_graph(struct view *view, struct rev_graph *graph)
5685 /* If this is the finalizing update ... */
5687 prepare_rev_graph(graph);
5689 /* Graph visualization needs a one rev look-ahead,
5690 * so the first update doesn't visualize anything. */
5691 if (!graph->prev->commit)
5694 if (view->lines > 2)
5695 view->line[view->lines - 3].dirty = 1;
5696 if (view->lines > 1)
5697 view->line[view->lines - 2].dirty = 1;
5698 draw_rev_graph(graph->prev);
5699 done_rev_graph(graph->prev->prev);
5707 static const char *main_argv[SIZEOF_ARG] = {
5708 "git", "log", "--no-color", "--pretty=raw", "--parents",
5709 "--topo-order", "%(head)", NULL
5713 main_draw(struct view *view, struct line *line, unsigned int lineno)
5715 struct commit *commit = line->data;
5717 if (!*commit->author)
5720 if (opt_date && draw_date(view, &commit->time))
5723 if (opt_author && draw_author(view, commit->author))
5726 if (opt_rev_graph && commit->graph_size &&
5727 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5730 if (opt_show_refs && commit->refs) {
5734 enum line_type type;
5736 if (commit->refs[i]->head)
5737 type = LINE_MAIN_HEAD;
5738 else if (commit->refs[i]->ltag)
5739 type = LINE_MAIN_LOCAL_TAG;
5740 else if (commit->refs[i]->tag)
5741 type = LINE_MAIN_TAG;
5742 else if (commit->refs[i]->tracked)
5743 type = LINE_MAIN_TRACKED;
5744 else if (commit->refs[i]->remote)
5745 type = LINE_MAIN_REMOTE;
5747 type = LINE_MAIN_REF;
5749 if (draw_text(view, type, "[", TRUE) ||
5750 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5751 draw_text(view, type, "]", TRUE))
5754 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5756 } while (commit->refs[i++]->next);
5759 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5763 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5765 main_read(struct view *view, char *line)
5767 static struct rev_graph *graph = graph_stacks;
5768 enum line_type type;
5769 struct commit *commit;
5774 if (!view->lines && !view->parent)
5775 die("No revisions match the given arguments.");
5776 if (view->lines > 0) {
5777 commit = view->line[view->lines - 1].data;
5778 view->line[view->lines - 1].dirty = 1;
5779 if (!*commit->author) {
5782 graph->commit = NULL;
5785 update_rev_graph(view, graph);
5787 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5788 clear_rev_graph(&graph_stacks[i]);
5792 type = get_line_type(line);
5793 if (type == LINE_COMMIT) {
5794 commit = calloc(1, sizeof(struct commit));
5798 line += STRING_SIZE("commit ");
5800 graph->boundary = 1;
5804 string_copy_rev(commit->id, line);
5805 commit->refs = get_refs(commit->id);
5806 graph->commit = commit;
5807 add_line_data(view, commit, LINE_MAIN_COMMIT);
5809 while ((line = strchr(line, ' '))) {
5811 push_rev_graph(graph->parents, line);
5812 commit->has_parents = TRUE;
5819 commit = view->line[view->lines - 1].data;
5823 if (commit->has_parents)
5825 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5829 parse_author_line(line + STRING_SIZE("author "),
5830 commit->author, sizeof(commit->author),
5832 update_rev_graph(view, graph);
5833 graph = graph->next;
5837 /* Fill in the commit title if it has not already been set. */
5838 if (commit->title[0])
5841 /* Require titles to start with a non-space character at the
5842 * offset used by git log. */
5843 if (strncmp(line, " ", 4))
5846 /* Well, if the title starts with a whitespace character,
5847 * try to be forgiving. Otherwise we end up with no title. */
5848 while (isspace(*line))
5852 /* FIXME: More graceful handling of titles; append "..." to
5853 * shortened titles, etc. */
5855 string_expand(commit->title, sizeof(commit->title), line, 1);
5856 view->line[view->lines - 1].dirty = 1;
5863 main_request(struct view *view, enum request request, struct line *line)
5865 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5869 open_view(view, REQ_VIEW_DIFF, flags);
5873 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5883 grep_refs(struct ref **refs, regex_t *regex)
5891 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5893 } while (refs[i++]->next);
5899 main_grep(struct view *view, struct line *line)
5901 struct commit *commit = line->data;
5902 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5903 char buf[DATE_COLS + 1];
5906 for (state = S_TITLE; state < S_END; state++) {
5910 case S_TITLE: text = commit->title; break;
5914 text = commit->author;
5919 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5926 if (grep_refs(commit->refs, view->regex) == TRUE)
5933 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5941 main_select(struct view *view, struct line *line)
5943 struct commit *commit = line->data;
5945 string_copy_rev(view->ref, commit->id);
5946 string_copy_rev(ref_commit, view->ref);
5949 static struct view_ops main_ops = {
5962 * Unicode / UTF-8 handling
5964 * NOTE: Much of the following code for dealing with Unicode is derived from
5965 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5966 * src/intl/charset.c from the UTF-8 branch commit elinks-0.11.0-g31f2c28.
5970 unicode_width(unsigned long c)
5973 (c <= 0x115f /* Hangul Jamo */
5976 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5978 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5979 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5980 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5981 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5982 || (c >= 0xffe0 && c <= 0xffe6)
5983 || (c >= 0x20000 && c <= 0x2fffd)
5984 || (c >= 0x30000 && c <= 0x3fffd)))
5988 return opt_tab_size;
5993 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5994 * Illegal bytes are set one. */
5995 static const unsigned char utf8_bytes[256] = {
5996 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,
5997 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,
5998 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,
5999 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,
6000 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,
6001 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,
6002 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,
6003 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,
6006 /* Decode UTF-8 multi-byte representation into a Unicode character. */
6007 static inline unsigned long
6008 utf8_to_unicode(const char *string, size_t length)
6010 unsigned long unicode;
6014 unicode = string[0];
6017 unicode = (string[0] & 0x1f) << 6;
6018 unicode += (string[1] & 0x3f);
6021 unicode = (string[0] & 0x0f) << 12;
6022 unicode += ((string[1] & 0x3f) << 6);
6023 unicode += (string[2] & 0x3f);
6026 unicode = (string[0] & 0x0f) << 18;
6027 unicode += ((string[1] & 0x3f) << 12);
6028 unicode += ((string[2] & 0x3f) << 6);
6029 unicode += (string[3] & 0x3f);
6032 unicode = (string[0] & 0x0f) << 24;
6033 unicode += ((string[1] & 0x3f) << 18);
6034 unicode += ((string[2] & 0x3f) << 12);
6035 unicode += ((string[3] & 0x3f) << 6);
6036 unicode += (string[4] & 0x3f);
6039 unicode = (string[0] & 0x01) << 30;
6040 unicode += ((string[1] & 0x3f) << 24);
6041 unicode += ((string[2] & 0x3f) << 18);
6042 unicode += ((string[3] & 0x3f) << 12);
6043 unicode += ((string[4] & 0x3f) << 6);
6044 unicode += (string[5] & 0x3f);
6047 die("Invalid Unicode length");
6050 /* Invalid characters could return the special 0xfffd value but NUL
6051 * should be just as good. */
6052 return unicode > 0xffff ? 0 : unicode;
6055 /* Calculates how much of string can be shown within the given maximum width
6056 * and sets trimmed parameter to non-zero value if all of string could not be
6057 * shown. If the reserve flag is TRUE, it will reserve at least one
6058 * trailing character, which can be useful when drawing a delimiter.
6060 * Returns the number of bytes to output from string to satisfy max_width. */
6062 utf8_length(const char **start, size_t skip, int *width, size_t max_width, int *trimmed, bool reserve)
6064 const char *string = *start;
6065 const char *end = strchr(string, '\0');
6066 unsigned char last_bytes = 0;
6067 size_t last_ucwidth = 0;
6072 while (string < end) {
6073 int c = *(unsigned char *) string;
6074 unsigned char bytes = utf8_bytes[c];
6076 unsigned long unicode;
6078 if (string + bytes > end)
6081 /* Change representation to figure out whether
6082 * it is a single- or double-width character. */
6084 unicode = utf8_to_unicode(string, bytes);
6085 /* FIXME: Graceful handling of invalid Unicode character. */
6089 ucwidth = unicode_width(unicode);
6091 skip -= ucwidth <= skip ? ucwidth : skip;
6095 if (*width > max_width) {
6098 if (reserve && *width == max_width) {
6099 string -= last_bytes;
6100 *width -= last_ucwidth;
6106 last_bytes = ucwidth ? bytes : 0;
6107 last_ucwidth = ucwidth;
6110 return string - *start;
6118 /* Whether or not the curses interface has been initialized. */
6119 static bool cursed = FALSE;
6121 /* Terminal hacks and workarounds. */
6122 static bool use_scroll_redrawwin;
6123 static bool use_scroll_status_wclear;
6125 /* The status window is used for polling keystrokes. */
6126 static WINDOW *status_win;
6128 /* Reading from the prompt? */
6129 static bool input_mode = FALSE;
6131 static bool status_empty = FALSE;
6133 /* Update status and title window. */
6135 report(const char *msg, ...)
6137 struct view *view = display[current_view];
6143 char buf[SIZEOF_STR];
6146 va_start(args, msg);
6147 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6148 buf[sizeof(buf) - 1] = 0;
6149 buf[sizeof(buf) - 2] = '.';
6150 buf[sizeof(buf) - 3] = '.';
6151 buf[sizeof(buf) - 4] = '.';
6157 if (!status_empty || *msg) {
6160 va_start(args, msg);
6162 wmove(status_win, 0, 0);
6163 if (view->has_scrolled && use_scroll_status_wclear)
6166 vwprintw(status_win, msg, args);
6167 status_empty = FALSE;
6169 status_empty = TRUE;
6171 wclrtoeol(status_win);
6172 wnoutrefresh(status_win);
6177 update_view_title(view);
6180 /* Controls when nodelay should be in effect when polling user input. */
6182 set_nonblocking_input(bool loading)
6184 static unsigned int loading_views;
6186 if ((loading == FALSE && loading_views-- == 1) ||
6187 (loading == TRUE && loading_views++ == 0))
6188 nodelay(status_win, loading);
6197 /* Initialize the curses library */
6198 if (isatty(STDIN_FILENO)) {
6199 cursed = !!initscr();
6202 /* Leave stdin and stdout alone when acting as a pager. */
6203 opt_tty = fopen("/dev/tty", "r+");
6205 die("Failed to open /dev/tty");
6206 cursed = !!newterm(NULL, opt_tty, opt_tty);
6210 die("Failed to initialize curses");
6212 nonl(); /* Disable conversion and detect newlines from input. */
6213 cbreak(); /* Take input chars one at a time, no wait for \n */
6214 noecho(); /* Don't echo input */
6215 leaveok(stdscr, FALSE);
6220 getmaxyx(stdscr, y, x);
6221 status_win = newwin(1, 0, y - 1, 0);
6223 die("Failed to create status window");
6225 /* Enable keyboard mapping */
6226 keypad(status_win, TRUE);
6227 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6229 TABSIZE = opt_tab_size;
6230 if (opt_line_graphics) {
6231 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6234 term = getenv("XTERM_VERSION") ? NULL : getenv("COLORTERM");
6235 if (term && !strcmp(term, "gnome-terminal")) {
6236 /* In the gnome-terminal-emulator, the message from
6237 * scrolling up one line when impossible followed by
6238 * scrolling down one line causes corruption of the
6239 * status line. This is fixed by calling wclear. */
6240 use_scroll_status_wclear = TRUE;
6241 use_scroll_redrawwin = FALSE;
6243 } else if (term && !strcmp(term, "xrvt-xpm")) {
6244 /* No problems with full optimizations in xrvt-(unicode)
6246 use_scroll_status_wclear = use_scroll_redrawwin = FALSE;
6249 /* When scrolling in (u)xterm the last line in the
6250 * scrolling direction will update slowly. */
6251 use_scroll_redrawwin = TRUE;
6252 use_scroll_status_wclear = FALSE;
6257 get_input(int prompt_position)
6260 int i, key, cursor_y, cursor_x;
6262 if (prompt_position)
6266 foreach_view (view, i) {
6268 if (view_is_displayed(view) && view->has_scrolled &&
6269 use_scroll_redrawwin)
6270 redrawwin(view->win);
6271 view->has_scrolled = FALSE;
6274 /* Update the cursor position. */
6275 if (prompt_position) {
6276 getbegyx(status_win, cursor_y, cursor_x);
6277 cursor_x = prompt_position;
6279 view = display[current_view];
6280 getbegyx(view->win, cursor_y, cursor_x);
6281 cursor_x = view->width - 1;
6282 cursor_y += view->lineno - view->offset;
6284 setsyx(cursor_y, cursor_x);
6286 /* Refresh, accept single keystroke of input */
6288 key = wgetch(status_win);
6290 /* wgetch() with nodelay() enabled returns ERR when
6291 * there's no input. */
6294 } else if (key == KEY_RESIZE) {
6297 getmaxyx(stdscr, height, width);
6299 wresize(status_win, 1, width);
6300 mvwin(status_win, height - 1, 0);
6301 wnoutrefresh(status_win);
6303 redraw_display(TRUE);
6313 prompt_input(const char *prompt, input_handler handler, void *data)
6315 enum input_status status = INPUT_OK;
6316 static char buf[SIZEOF_STR];
6321 while (status == INPUT_OK || status == INPUT_SKIP) {
6324 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6325 wclrtoeol(status_win);
6327 key = get_input(pos + 1);
6332 status = pos ? INPUT_STOP : INPUT_CANCEL;
6339 status = INPUT_CANCEL;
6343 status = INPUT_CANCEL;
6347 if (pos >= sizeof(buf)) {
6348 report("Input string too long");
6352 status = handler(data, buf, key);
6353 if (status == INPUT_OK)
6354 buf[pos++] = (char) key;
6358 /* Clear the status window */
6359 status_empty = FALSE;
6362 if (status == INPUT_CANCEL)
6370 static enum input_status
6371 prompt_yesno_handler(void *data, char *buf, int c)
6373 if (c == 'y' || c == 'Y')
6375 if (c == 'n' || c == 'N')
6376 return INPUT_CANCEL;
6381 prompt_yesno(const char *prompt)
6383 char prompt2[SIZEOF_STR];
6385 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6388 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6391 static enum input_status
6392 read_prompt_handler(void *data, char *buf, int c)
6394 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6398 read_prompt(const char *prompt)
6400 return prompt_input(prompt, read_prompt_handler, NULL);
6404 * Repository properties
6407 static struct ref *refs = NULL;
6408 static size_t refs_alloc = 0;
6409 static size_t refs_size = 0;
6411 /* Id <-> ref store */
6412 static struct ref ***id_refs = NULL;
6413 static size_t id_refs_alloc = 0;
6414 static size_t id_refs_size = 0;
6417 compare_refs(const void *ref1_, const void *ref2_)
6419 const struct ref *ref1 = *(const struct ref **)ref1_;
6420 const struct ref *ref2 = *(const struct ref **)ref2_;
6422 if (ref1->tag != ref2->tag)
6423 return ref2->tag - ref1->tag;
6424 if (ref1->ltag != ref2->ltag)
6425 return ref2->ltag - ref2->ltag;
6426 if (ref1->head != ref2->head)
6427 return ref2->head - ref1->head;
6428 if (ref1->tracked != ref2->tracked)
6429 return ref2->tracked - ref1->tracked;
6430 if (ref1->remote != ref2->remote)
6431 return ref2->remote - ref1->remote;
6432 return strcmp(ref1->name, ref2->name);
6435 static struct ref **
6436 get_refs(const char *id)
6438 struct ref ***tmp_id_refs;
6439 struct ref **ref_list = NULL;
6440 size_t ref_list_alloc = 0;
6441 size_t ref_list_size = 0;
6444 for (i = 0; i < id_refs_size; i++)
6445 if (!strcmp(id, id_refs[i][0]->id))
6448 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6453 id_refs = tmp_id_refs;
6455 for (i = 0; i < refs_size; i++) {
6458 if (strcmp(id, refs[i].id))
6461 tmp = realloc_items(ref_list, &ref_list_alloc,
6462 ref_list_size + 1, sizeof(*ref_list));
6470 ref_list[ref_list_size] = &refs[i];
6471 /* XXX: The properties of the commit chains ensures that we can
6472 * safely modify the shared ref. The repo references will
6473 * always be similar for the same id. */
6474 ref_list[ref_list_size]->next = 1;
6480 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6481 ref_list[ref_list_size - 1]->next = 0;
6482 id_refs[id_refs_size++] = ref_list;
6489 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6494 bool remote = FALSE;
6495 bool tracked = FALSE;
6496 bool check_replace = FALSE;
6499 if (!prefixcmp(name, "refs/tags/")) {
6500 if (!suffixcmp(name, namelen, "^{}")) {
6503 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6504 check_replace = TRUE;
6510 namelen -= STRING_SIZE("refs/tags/");
6511 name += STRING_SIZE("refs/tags/");
6513 } else if (!prefixcmp(name, "refs/remotes/")) {
6515 namelen -= STRING_SIZE("refs/remotes/");
6516 name += STRING_SIZE("refs/remotes/");
6517 tracked = !strcmp(opt_remote, name);
6519 } else if (!prefixcmp(name, "refs/heads/")) {
6520 namelen -= STRING_SIZE("refs/heads/");
6521 name += STRING_SIZE("refs/heads/");
6522 head = !strncmp(opt_head, name, namelen);
6524 } else if (!strcmp(name, "HEAD")) {
6525 string_ncopy(opt_head_rev, id, idlen);
6529 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6530 /* it's an annotated tag, replace the previous SHA1 with the
6531 * resolved commit id; relies on the fact git-ls-remote lists
6532 * the commit id of an annotated tag right before the commit id
6534 refs[refs_size - 1].ltag = ltag;
6535 string_copy_rev(refs[refs_size - 1].id, id);
6539 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6543 ref = &refs[refs_size++];
6544 ref->name = malloc(namelen + 1);
6548 strncpy(ref->name, name, namelen);
6549 ref->name[namelen] = 0;
6553 ref->remote = remote;
6554 ref->tracked = tracked;
6555 string_copy_rev(ref->id, id);
6563 static const char *ls_remote_argv[SIZEOF_ARG] = {
6564 "git", "ls-remote", ".", NULL
6566 static bool init = FALSE;
6569 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6576 while (refs_size > 0)
6577 free(refs[--refs_size].name);
6578 while (id_refs_size > 0)
6579 free(id_refs[--id_refs_size]);
6581 return run_io_load(ls_remote_argv, "\t", read_ref);
6585 set_repo_config_option(char *name, char *value, int (*cmd)(int, const char **))
6587 const char *argv[SIZEOF_ARG] = { name, "=" };
6588 int argc = 1 + (cmd == option_set_command);
6591 if (!argv_from_string(argv, &argc, value))
6592 config_msg = "Too many option arguments";
6594 error = cmd(argc, argv);
6597 warn("Option 'tig.%s': %s", name, config_msg);
6601 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6603 if (!strcmp(name, "i18n.commitencoding"))
6604 string_ncopy(opt_encoding, value, valuelen);
6606 if (!strcmp(name, "core.editor"))
6607 string_ncopy(opt_editor, value, valuelen);
6609 if (!prefixcmp(name, "tig.color."))
6610 set_repo_config_option(name + 10, value, option_color_command);
6612 else if (!prefixcmp(name, "tig.bind."))
6613 set_repo_config_option(name + 9, value, option_bind_command);
6615 else if (!prefixcmp(name, "tig."))
6616 set_repo_config_option(name + 4, value, option_set_command);
6618 /* branch.<head>.remote */
6620 !strncmp(name, "branch.", 7) &&
6621 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6622 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6623 string_ncopy(opt_remote, value, valuelen);
6625 if (*opt_head && *opt_remote &&
6626 !strncmp(name, "branch.", 7) &&
6627 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6628 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6629 size_t from = strlen(opt_remote);
6631 if (!prefixcmp(value, "refs/heads/")) {
6632 value += STRING_SIZE("refs/heads/");
6633 valuelen -= STRING_SIZE("refs/heads/");
6636 if (!string_format_from(opt_remote, &from, "/%s", value))
6644 load_git_config(void)
6646 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6648 return run_io_load(config_list_argv, "=", read_repo_config_option);
6652 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6654 if (!opt_git_dir[0]) {
6655 string_ncopy(opt_git_dir, name, namelen);
6657 } else if (opt_is_inside_work_tree == -1) {
6658 /* This can be 3 different values depending on the
6659 * version of git being used. If git-rev-parse does not
6660 * understand --is-inside-work-tree it will simply echo
6661 * the option else either "true" or "false" is printed.
6662 * Default to true for the unknown case. */
6663 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6665 } else if (*name == '.') {
6666 string_ncopy(opt_cdup, name, namelen);
6669 string_ncopy(opt_prefix, name, namelen);
6676 load_repo_info(void)
6678 const char *head_argv[] = {
6679 "git", "symbolic-ref", "HEAD", NULL
6681 const char *rev_parse_argv[] = {
6682 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6683 "--show-cdup", "--show-prefix", NULL
6686 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6687 chomp_string(opt_head);
6688 if (!prefixcmp(opt_head, "refs/heads/")) {
6689 char *offset = opt_head + STRING_SIZE("refs/heads/");
6691 memmove(opt_head, offset, strlen(offset) + 1);
6695 return run_io_load(rev_parse_argv, "=", read_repo_info);
6703 static const char usage[] =
6704 "tig " TIG_VERSION " (" __DATE__ ")\n"
6706 "Usage: tig [options] [revs] [--] [paths]\n"
6707 " or: tig show [options] [revs] [--] [paths]\n"
6708 " or: tig blame [rev] path\n"
6710 " or: tig < [git command output]\n"
6713 " -v, --version Show version and exit\n"
6714 " -h, --help Show help message and exit";
6716 static void __NORETURN
6719 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6725 static void __NORETURN
6726 die(const char *err, ...)
6732 va_start(args, err);
6733 fputs("tig: ", stderr);
6734 vfprintf(stderr, err, args);
6735 fputs("\n", stderr);
6742 warn(const char *msg, ...)
6746 va_start(args, msg);
6747 fputs("tig warning: ", stderr);
6748 vfprintf(stderr, msg, args);
6749 fputs("\n", stderr);
6754 parse_options(int argc, const char *argv[])
6756 enum request request = REQ_VIEW_MAIN;
6757 const char *subcommand;
6758 bool seen_dashdash = FALSE;
6759 /* XXX: This is vulnerable to the user overriding options
6760 * required for the main view parser. */
6761 const char *custom_argv[SIZEOF_ARG] = {
6762 "git", "log", "--no-color", "--pretty=raw", "--parents",
6763 "--topo-order", NULL
6767 if (!isatty(STDIN_FILENO)) {
6768 io_open(&VIEW(REQ_VIEW_PAGER)->io, "");
6769 return REQ_VIEW_PAGER;
6775 subcommand = argv[1];
6776 if (!strcmp(subcommand, "status")) {
6778 warn("ignoring arguments after `%s'", subcommand);
6779 return REQ_VIEW_STATUS;
6781 } else if (!strcmp(subcommand, "blame")) {
6782 if (argc <= 2 || argc > 4)
6783 die("invalid number of options to blame\n\n%s", usage);
6787 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
6791 string_ncopy(opt_file, argv[i], strlen(argv[i]));
6792 return REQ_VIEW_BLAME;
6794 } else if (!strcmp(subcommand, "show")) {
6795 request = REQ_VIEW_DIFF;
6802 custom_argv[1] = subcommand;
6806 for (i = 1 + !!subcommand; i < argc; i++) {
6807 const char *opt = argv[i];
6809 if (seen_dashdash || !strcmp(opt, "--")) {
6810 seen_dashdash = TRUE;
6812 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
6813 printf("tig version %s\n", TIG_VERSION);
6816 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
6817 printf("%s\n", usage);
6821 custom_argv[j++] = opt;
6822 if (j >= ARRAY_SIZE(custom_argv))
6823 die("command too long");
6826 if (!prepare_update(VIEW(request), custom_argv, NULL, FORMAT_NONE))
6827 die("Failed to format arguments");
6833 main(int argc, const char *argv[])
6835 enum request request = parse_options(argc, argv);
6839 signal(SIGINT, quit);
6841 if (setlocale(LC_ALL, "")) {
6842 char *codeset = nl_langinfo(CODESET);
6844 string_ncopy(opt_codeset, codeset, strlen(codeset));
6847 if (load_repo_info() == ERR)
6848 die("Failed to load repo info.");
6850 if (load_options() == ERR)
6851 die("Failed to load user config.");
6853 if (load_git_config() == ERR)
6854 die("Failed to load repo config.");
6856 /* Require a git repository unless when running in pager mode. */
6857 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6858 die("Not a git repository");
6860 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6863 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6864 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6865 if (opt_iconv == ICONV_NONE)
6866 die("Failed to initialize character set conversion");
6869 if (load_refs() == ERR)
6870 die("Failed to load refs.");
6872 foreach_view (view, i)
6873 argv_from_env(view->ops->argv, view->cmd_env);
6877 if (request != REQ_NONE)
6878 open_view(NULL, request, OPEN_PREPARED);
6879 request = request == REQ_NONE ? REQ_VIEW_MAIN : REQ_NONE;
6881 while (view_driver(display[current_view], request)) {
6882 int key = get_input(0);
6884 view = display[current_view];
6885 request = get_keybinding(view->keymap, key);
6887 /* Some low-level request handling. This keeps access to
6888 * status_win restricted. */
6892 char *cmd = read_prompt(":");
6895 struct view *next = VIEW(REQ_VIEW_PAGER);
6896 const char *argv[SIZEOF_ARG] = { "git" };
6899 /* When running random commands, initially show the
6900 * command in the title. However, it maybe later be
6901 * overwritten if a commit line is selected. */
6902 string_ncopy(next->ref, cmd, strlen(cmd));
6904 if (!argv_from_string(argv, &argc, cmd)) {
6905 report("Too many arguments");
6906 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6907 report("Failed to format command");
6909 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6917 case REQ_SEARCH_BACK:
6919 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6920 char *search = read_prompt(prompt);
6923 string_ncopy(opt_search, search, strlen(search));
6924 else if (*opt_search)
6925 request = request == REQ_SEARCH ?