1 /* Copyright (c) 2006-2009 Jonas Fonseca <fonseca@diku.dk>
3 * This program is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU General Public License as
5 * published by the Free Software Foundation; either version 2 of
6 * the License, or (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
19 #define TIG_VERSION "unknown-version"
34 #include <sys/types.h>
37 #include <sys/select.h>
48 /* ncurses(3): Must be defined to have extended wide-character functions. */
49 #define _XOPEN_SOURCE_EXTENDED
51 #ifdef HAVE_NCURSESW_NCURSES_H
52 #include <ncursesw/ncurses.h>
54 #ifdef HAVE_NCURSES_NCURSES_H
55 #include <ncurses/ncurses.h>
62 #define __NORETURN __attribute__((__noreturn__))
67 static void __NORETURN die(const char *err, ...);
68 static void warn(const char *msg, ...);
69 static void report(const char *msg, ...);
70 static void set_nonblocking_input(bool loading);
71 static int load_refs(void);
72 static size_t utf8_length(const char **string, size_t col, int *width, size_t max_width, int *trimmed, bool reserve);
74 #define ABS(x) ((x) >= 0 ? (x) : -(x))
75 #define MIN(x, y) ((x) < (y) ? (x) : (y))
77 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
78 #define STRING_SIZE(x) (sizeof(x) - 1)
80 #define SIZEOF_STR 1024 /* Default string size. */
81 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
82 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL. */
83 #define SIZEOF_ARG 32 /* Default argument array size. */
87 #define REVGRAPH_INIT 'I'
88 #define REVGRAPH_MERGE 'M'
89 #define REVGRAPH_BRANCH '+'
90 #define REVGRAPH_COMMIT '*'
91 #define REVGRAPH_BOUND '^'
93 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
95 /* This color name can be used to refer to the default term colors. */
96 #define COLOR_DEFAULT (-1)
98 #define ICONV_NONE ((iconv_t) -1)
100 #define ICONV_CONST /* nothing */
103 /* The format and size of the date column in the main view. */
104 #define DATE_FORMAT "%Y-%m-%d %H:%M"
105 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
107 #define AUTHOR_COLS 20
110 /* The default interval between line numbers. */
111 #define NUMBER_INTERVAL 5
115 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
117 #define NULL_ID "0000000000000000000000000000000000000000"
119 #define S_ISGITLINK(mode) (((mode) & S_IFMT) == 0160000)
122 #define GIT_CONFIG "config"
125 /* Some ASCII-shorthands fitted into the ncurses namespace. */
127 #define KEY_RETURN '\r'
132 char *name; /* Ref name; tag or head names are shortened. */
133 char id[SIZEOF_REV]; /* Commit SHA1 ID */
134 unsigned int head:1; /* Is it the current HEAD? */
135 unsigned int tag:1; /* Is it a tag? */
136 unsigned int ltag:1; /* If so, is the tag local? */
137 unsigned int remote:1; /* Is it a remote ref? */
138 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
139 unsigned int next:1; /* For ref lists: are there more refs? */
142 static struct ref **get_refs(const char *id);
145 FORMAT_ALL, /* Perform replacement in all arguments. */
146 FORMAT_DASH, /* Perform replacement up until "--". */
147 FORMAT_NONE /* No replacement should be performed. */
150 static bool format_argv(const char *dst[], const char *src[], enum format_flags flags);
159 typedef enum input_status (*input_handler)(void *data, char *buf, int c);
161 static char *prompt_input(const char *prompt, input_handler handler, void *data);
162 static bool prompt_yesno(const char *prompt);
169 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
171 if (srclen > dstlen - 1)
174 strncpy(dst, src, srclen);
178 /* Shorthands for safely copying into a fixed buffer. */
180 #define string_copy(dst, src) \
181 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
183 #define string_ncopy(dst, src, srclen) \
184 string_ncopy_do(dst, sizeof(dst), src, srclen)
186 #define string_copy_rev(dst, src) \
187 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
189 #define string_add(dst, from, src) \
190 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
193 string_expand(char *dst, size_t dstlen, const char *src, int tabsize)
197 for (size = pos = 0; size < dstlen - 1 && src[pos]; pos++) {
198 if (src[pos] == '\t') {
199 size_t expanded = tabsize - (size % tabsize);
201 if (expanded + size >= dstlen - 1)
202 expanded = dstlen - size - 1;
203 memcpy(dst + size, " ", expanded);
206 dst[size++] = src[pos];
214 chomp_string(char *name)
218 while (isspace(*name))
221 namelen = strlen(name) - 1;
222 while (namelen > 0 && isspace(name[namelen]))
229 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
232 size_t pos = bufpos ? *bufpos : 0;
235 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
241 return pos >= bufsize ? FALSE : TRUE;
244 #define string_format(buf, fmt, args...) \
245 string_nformat(buf, sizeof(buf), NULL, fmt, args)
247 #define string_format_from(buf, from, fmt, args...) \
248 string_nformat(buf, sizeof(buf), from, fmt, args)
251 string_enum_compare(const char *str1, const char *str2, int len)
255 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
257 /* Diff-Header == DIFF_HEADER */
258 for (i = 0; i < len; i++) {
259 if (toupper(str1[i]) == toupper(str2[i]))
262 if (string_enum_sep(str1[i]) &&
263 string_enum_sep(str2[i]))
266 return str1[i] - str2[i];
278 #define ENUM_MAP(name, value) { name, STRING_SIZE(name), value }
281 map_enum_do(const struct enum_map *map, size_t map_size, int *value, const char *name)
283 size_t namelen = strlen(name);
286 for (i = 0; i < map_size; i++)
287 if (namelen == map[i].namelen &&
288 !string_enum_compare(name, map[i].name, namelen)) {
289 *value = map[i].value;
296 #define map_enum(attr, map, name) \
297 map_enum_do(map, ARRAY_SIZE(map), attr, name)
299 #define prefixcmp(str1, str2) \
300 strncmp(str1, str2, STRING_SIZE(str2))
303 suffixcmp(const char *str, int slen, const char *suffix)
305 size_t len = slen >= 0 ? slen : strlen(str);
306 size_t suffixlen = strlen(suffix);
308 return suffixlen < len ? strcmp(str + len - suffixlen, suffix) : -1;
313 argv_from_string(const char *argv[SIZEOF_ARG], int *argc, char *cmd)
317 while (*cmd && *argc < SIZEOF_ARG && (valuelen = strcspn(cmd, " \t"))) {
318 bool advance = cmd[valuelen] != 0;
321 argv[(*argc)++] = chomp_string(cmd);
322 cmd = chomp_string(cmd + valuelen + advance);
325 if (*argc < SIZEOF_ARG)
327 return *argc < SIZEOF_ARG;
331 argv_from_env(const char **argv, const char *name)
333 char *env = argv ? getenv(name) : NULL;
338 if (env && !argv_from_string(argv, &argc, env))
339 die("Too many arguments in the `%s` environment variable", name);
344 * Executing external commands.
348 IO_FD, /* File descriptor based IO. */
349 IO_BG, /* Execute command in the background. */
350 IO_FG, /* Execute command with same std{in,out,err}. */
351 IO_RD, /* Read only fork+exec IO. */
352 IO_WR, /* Write only fork+exec IO. */
353 IO_AP, /* Append fork+exec output to file. */
357 enum io_type type; /* The requested type of pipe. */
358 const char *dir; /* Directory from which to execute. */
359 pid_t pid; /* Pipe for reading or writing. */
360 int pipe; /* Pipe end for reading or writing. */
361 int error; /* Error status. */
362 const char *argv[SIZEOF_ARG]; /* Shell command arguments. */
363 char *buf; /* Read buffer. */
364 size_t bufalloc; /* Allocated buffer size. */
365 size_t bufsize; /* Buffer content size. */
366 char *bufpos; /* Current buffer position. */
367 unsigned int eof:1; /* Has end of file been reached. */
371 reset_io(struct io *io)
375 io->buf = io->bufpos = NULL;
376 io->bufalloc = io->bufsize = 0;
382 init_io(struct io *io, const char *dir, enum io_type type)
390 init_io_rd(struct io *io, const char *argv[], const char *dir,
391 enum format_flags flags)
393 init_io(io, dir, IO_RD);
394 return format_argv(io->argv, argv, flags);
398 io_open(struct io *io, const char *name)
400 init_io(io, NULL, IO_FD);
401 io->pipe = *name ? open(name, O_RDONLY) : STDIN_FILENO;
404 return io->pipe != -1;
408 kill_io(struct io *io)
410 return io->pid == 0 || kill(io->pid, SIGKILL) != -1;
414 done_io(struct io *io)
425 pid_t waiting = waitpid(pid, &status, 0);
430 report("waitpid failed (%s)", strerror(errno));
434 return waiting == pid &&
435 !WIFSIGNALED(status) &&
437 !WEXITSTATUS(status);
444 start_io(struct io *io)
446 int pipefds[2] = { -1, -1 };
448 if (io->type == IO_FD)
451 if ((io->type == IO_RD || io->type == IO_WR) &&
454 else if (io->type == IO_AP)
455 pipefds[1] = io->pipe;
457 if ((io->pid = fork())) {
458 if (pipefds[!(io->type == IO_WR)] != -1)
459 close(pipefds[!(io->type == IO_WR)]);
461 io->pipe = pipefds[!!(io->type == IO_WR)];
466 if (io->type != IO_FG) {
467 int devnull = open("/dev/null", O_RDWR);
468 int readfd = io->type == IO_WR ? pipefds[0] : devnull;
469 int writefd = (io->type == IO_RD || io->type == IO_AP)
470 ? pipefds[1] : devnull;
472 dup2(readfd, STDIN_FILENO);
473 dup2(writefd, STDOUT_FILENO);
474 dup2(devnull, STDERR_FILENO);
477 if (pipefds[0] != -1)
479 if (pipefds[1] != -1)
483 if (io->dir && *io->dir && chdir(io->dir) == -1)
484 die("Failed to change directory: %s", strerror(errno));
486 execvp(io->argv[0], (char *const*) io->argv);
487 die("Failed to execute program: %s", strerror(errno));
490 if (pipefds[!!(io->type == IO_WR)] != -1)
491 close(pipefds[!!(io->type == IO_WR)]);
496 run_io(struct io *io, const char **argv, const char *dir, enum io_type type)
498 init_io(io, dir, type);
499 if (!format_argv(io->argv, argv, FORMAT_NONE))
505 run_io_do(struct io *io)
507 return start_io(io) && done_io(io);
511 run_io_bg(const char **argv)
515 init_io(&io, NULL, IO_BG);
516 if (!format_argv(io.argv, argv, FORMAT_NONE))
518 return run_io_do(&io);
522 run_io_fg(const char **argv, const char *dir)
526 init_io(&io, dir, IO_FG);
527 if (!format_argv(io.argv, argv, FORMAT_NONE))
529 return run_io_do(&io);
533 run_io_append(const char **argv, enum format_flags flags, int fd)
537 init_io(&io, NULL, IO_AP);
539 if (format_argv(io.argv, argv, flags))
540 return run_io_do(&io);
546 run_io_rd(struct io *io, const char **argv, enum format_flags flags)
548 return init_io_rd(io, argv, NULL, flags) && start_io(io);
552 io_eof(struct io *io)
558 io_error(struct io *io)
564 io_strerror(struct io *io)
566 return strerror(io->error);
570 io_can_read(struct io *io)
572 struct timeval tv = { 0, 500 };
576 FD_SET(io->pipe, &fds);
578 return select(io->pipe + 1, &fds, NULL, NULL, &tv) > 0;
582 io_read(struct io *io, void *buf, size_t bufsize)
585 ssize_t readsize = read(io->pipe, buf, bufsize);
587 if (readsize < 0 && (errno == EAGAIN || errno == EINTR))
589 else if (readsize == -1)
591 else if (readsize == 0)
598 io_get(struct io *io, int c, bool can_read)
604 io->buf = io->bufpos = malloc(BUFSIZ);
607 io->bufalloc = BUFSIZ;
612 if (io->bufsize > 0) {
613 eol = memchr(io->bufpos, c, io->bufsize);
615 char *line = io->bufpos;
618 io->bufpos = eol + 1;
619 io->bufsize -= io->bufpos - line;
626 io->bufpos[io->bufsize] = 0;
636 if (io->bufsize > 0 && io->bufpos > io->buf)
637 memmove(io->buf, io->bufpos, io->bufsize);
639 io->bufpos = io->buf;
640 readsize = io_read(io, io->buf + io->bufsize, io->bufalloc - io->bufsize);
643 io->bufsize += readsize;
648 io_write(struct io *io, const void *buf, size_t bufsize)
652 while (!io_error(io) && written < bufsize) {
655 size = write(io->pipe, buf + written, bufsize - written);
656 if (size < 0 && (errno == EAGAIN || errno == EINTR))
664 return written == bufsize;
668 io_read_buf(struct io *io, char buf[], size_t bufsize)
672 io->buf = io->bufpos = buf;
673 io->bufalloc = bufsize;
674 error = !io_get(io, '\n', TRUE) && io_error(io);
677 return done_io(io) || error;
681 run_io_buf(const char **argv, char buf[], size_t bufsize)
685 return run_io_rd(&io, argv, FORMAT_NONE) && io_read_buf(&io, buf, bufsize);
689 io_load(struct io *io, const char *separators,
690 int (*read_property)(char *, size_t, char *, size_t))
698 while (state == OK && (name = io_get(io, '\n', TRUE))) {
703 name = chomp_string(name);
704 namelen = strcspn(name, separators);
708 value = chomp_string(name + namelen + 1);
709 valuelen = strlen(value);
716 state = read_property(name, namelen, value, valuelen);
719 if (state != ERR && io_error(io))
727 run_io_load(const char **argv, const char *separators,
728 int (*read_property)(char *, size_t, char *, size_t))
732 return init_io_rd(&io, argv, NULL, FORMAT_NONE)
733 ? io_load(&io, separators, read_property) : ERR;
742 /* XXX: Keep the view request first and in sync with views[]. */ \
743 REQ_GROUP("View switching") \
744 REQ_(VIEW_MAIN, "Show main view"), \
745 REQ_(VIEW_DIFF, "Show diff view"), \
746 REQ_(VIEW_LOG, "Show log view"), \
747 REQ_(VIEW_TREE, "Show tree view"), \
748 REQ_(VIEW_BLOB, "Show blob view"), \
749 REQ_(VIEW_BLAME, "Show blame view"), \
750 REQ_(VIEW_HELP, "Show help page"), \
751 REQ_(VIEW_PAGER, "Show pager view"), \
752 REQ_(VIEW_STATUS, "Show status view"), \
753 REQ_(VIEW_STAGE, "Show stage view"), \
755 REQ_GROUP("View manipulation") \
756 REQ_(ENTER, "Enter current line and scroll"), \
757 REQ_(NEXT, "Move to next"), \
758 REQ_(PREVIOUS, "Move to previous"), \
759 REQ_(PARENT, "Move to parent"), \
760 REQ_(VIEW_NEXT, "Move focus to next view"), \
761 REQ_(REFRESH, "Reload and refresh"), \
762 REQ_(MAXIMIZE, "Maximize the current view"), \
763 REQ_(VIEW_CLOSE, "Close the current view"), \
764 REQ_(QUIT, "Close all views and quit"), \
766 REQ_GROUP("View specific requests") \
767 REQ_(STATUS_UPDATE, "Update file status"), \
768 REQ_(STATUS_REVERT, "Revert file changes"), \
769 REQ_(STATUS_MERGE, "Merge file using external tool"), \
770 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
772 REQ_GROUP("Cursor navigation") \
773 REQ_(MOVE_UP, "Move cursor one line up"), \
774 REQ_(MOVE_DOWN, "Move cursor one line down"), \
775 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
776 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
777 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
778 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
780 REQ_GROUP("Scrolling") \
781 REQ_(SCROLL_LEFT, "Scroll two columns left"), \
782 REQ_(SCROLL_RIGHT, "Scroll two columns right"), \
783 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
784 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
785 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
786 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
788 REQ_GROUP("Searching") \
789 REQ_(SEARCH, "Search the view"), \
790 REQ_(SEARCH_BACK, "Search backwards in the view"), \
791 REQ_(FIND_NEXT, "Find next search match"), \
792 REQ_(FIND_PREV, "Find previous search match"), \
794 REQ_GROUP("Option manipulation") \
795 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
796 REQ_(TOGGLE_DATE, "Toggle date display"), \
797 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
798 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
799 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
802 REQ_(PROMPT, "Bring up the prompt"), \
803 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
804 REQ_(SHOW_VERSION, "Show version information"), \
805 REQ_(STOP_LOADING, "Stop all loading views"), \
806 REQ_(EDIT, "Open in editor"), \
807 REQ_(NONE, "Do nothing")
810 /* User action requests. */
812 #define REQ_GROUP(help)
813 #define REQ_(req, help) REQ_##req
815 /* Offset all requests to avoid conflicts with ncurses getch values. */
816 REQ_OFFSET = KEY_MAX + 1,
823 struct request_info {
824 enum request request;
830 static const struct request_info req_info[] = {
831 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
832 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
839 get_request(const char *name)
841 int namelen = strlen(name);
844 for (i = 0; i < ARRAY_SIZE(req_info); i++)
845 if (req_info[i].namelen == namelen &&
846 !string_enum_compare(req_info[i].name, name, namelen))
847 return req_info[i].request;
857 /* Option and state variables. */
858 static bool opt_date = TRUE;
859 static bool opt_author = TRUE;
860 static bool opt_line_number = FALSE;
861 static bool opt_line_graphics = TRUE;
862 static bool opt_rev_graph = FALSE;
863 static bool opt_show_refs = TRUE;
864 static int opt_num_interval = NUMBER_INTERVAL;
865 static double opt_hscroll = 0.50;
866 static int opt_tab_size = TAB_SIZE;
867 static int opt_author_cols = AUTHOR_COLS-1;
868 static char opt_path[SIZEOF_STR] = "";
869 static char opt_file[SIZEOF_STR] = "";
870 static char opt_ref[SIZEOF_REF] = "";
871 static char opt_head[SIZEOF_REF] = "";
872 static char opt_head_rev[SIZEOF_REV] = "";
873 static char opt_remote[SIZEOF_REF] = "";
874 static char opt_encoding[20] = "UTF-8";
875 static bool opt_utf8 = TRUE;
876 static char opt_codeset[20] = "UTF-8";
877 static iconv_t opt_iconv = ICONV_NONE;
878 static char opt_search[SIZEOF_STR] = "";
879 static char opt_cdup[SIZEOF_STR] = "";
880 static char opt_prefix[SIZEOF_STR] = "";
881 static char opt_git_dir[SIZEOF_STR] = "";
882 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
883 static char opt_editor[SIZEOF_STR] = "";
884 static FILE *opt_tty = NULL;
886 #define is_initial_commit() (!*opt_head_rev)
887 #define is_head_commit(rev) (!strcmp((rev), "HEAD") || !strcmp(opt_head_rev, (rev)))
891 * Line-oriented content detection.
895 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
896 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
897 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
898 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
899 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
900 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
901 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
902 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
903 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
904 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
905 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
906 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
907 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
908 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
909 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
910 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
911 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
912 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
913 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
914 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
915 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
916 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
917 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
918 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
919 LINE(AUTHOR, "author ", COLOR_GREEN, COLOR_DEFAULT, 0), \
920 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
921 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
922 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
923 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
924 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
925 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
926 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
927 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
928 LINE(MODE, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
929 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
930 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
931 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
932 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
933 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
934 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
935 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
936 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
937 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
938 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
939 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
940 LINE(TREE_HEAD, "", COLOR_DEFAULT, COLOR_DEFAULT, A_BOLD), \
941 LINE(TREE_DIR, "", COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL), \
942 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
943 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
944 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
945 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
946 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
947 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
948 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
949 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
952 #define LINE(type, line, fg, bg, attr) \
960 const char *name; /* Option name. */
961 int namelen; /* Size of option name. */
962 const char *line; /* The start of line to match. */
963 int linelen; /* Size of string to match. */
964 int fg, bg, attr; /* Color and text attributes for the lines. */
967 static struct line_info line_info[] = {
968 #define LINE(type, line, fg, bg, attr) \
969 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
974 static enum line_type
975 get_line_type(const char *line)
977 int linelen = strlen(line);
980 for (type = 0; type < ARRAY_SIZE(line_info); type++)
981 /* Case insensitive search matches Signed-off-by lines better. */
982 if (linelen >= line_info[type].linelen &&
983 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
990 get_line_attr(enum line_type type)
992 assert(type < ARRAY_SIZE(line_info));
993 return COLOR_PAIR(type) | line_info[type].attr;
996 static struct line_info *
997 get_line_info(const char *name)
999 size_t namelen = strlen(name);
1000 enum line_type type;
1002 for (type = 0; type < ARRAY_SIZE(line_info); type++)
1003 if (namelen == line_info[type].namelen &&
1004 !string_enum_compare(line_info[type].name, name, namelen))
1005 return &line_info[type];
1013 int default_bg = line_info[LINE_DEFAULT].bg;
1014 int default_fg = line_info[LINE_DEFAULT].fg;
1015 enum line_type type;
1019 if (assume_default_colors(default_fg, default_bg) == ERR) {
1020 default_bg = COLOR_BLACK;
1021 default_fg = COLOR_WHITE;
1024 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
1025 struct line_info *info = &line_info[type];
1026 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
1027 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
1029 init_pair(type, fg, bg);
1034 enum line_type type;
1037 unsigned int selected:1;
1038 unsigned int dirty:1;
1039 unsigned int cleareol:1;
1041 void *data; /* User data */
1051 enum request request;
1054 static const struct keybinding default_keybindings[] = {
1055 /* View switching */
1056 { 'm', REQ_VIEW_MAIN },
1057 { 'd', REQ_VIEW_DIFF },
1058 { 'l', REQ_VIEW_LOG },
1059 { 't', REQ_VIEW_TREE },
1060 { 'f', REQ_VIEW_BLOB },
1061 { 'B', REQ_VIEW_BLAME },
1062 { 'p', REQ_VIEW_PAGER },
1063 { 'h', REQ_VIEW_HELP },
1064 { 'S', REQ_VIEW_STATUS },
1065 { 'c', REQ_VIEW_STAGE },
1067 /* View manipulation */
1068 { 'q', REQ_VIEW_CLOSE },
1069 { KEY_TAB, REQ_VIEW_NEXT },
1070 { KEY_RETURN, REQ_ENTER },
1071 { KEY_UP, REQ_PREVIOUS },
1072 { KEY_DOWN, REQ_NEXT },
1073 { 'R', REQ_REFRESH },
1074 { KEY_F(5), REQ_REFRESH },
1075 { 'O', REQ_MAXIMIZE },
1077 /* Cursor navigation */
1078 { 'k', REQ_MOVE_UP },
1079 { 'j', REQ_MOVE_DOWN },
1080 { KEY_HOME, REQ_MOVE_FIRST_LINE },
1081 { KEY_END, REQ_MOVE_LAST_LINE },
1082 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
1083 { ' ', REQ_MOVE_PAGE_DOWN },
1084 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
1085 { 'b', REQ_MOVE_PAGE_UP },
1086 { '-', REQ_MOVE_PAGE_UP },
1089 { KEY_LEFT, REQ_SCROLL_LEFT },
1090 { KEY_RIGHT, REQ_SCROLL_RIGHT },
1091 { KEY_IC, REQ_SCROLL_LINE_UP },
1092 { KEY_DC, REQ_SCROLL_LINE_DOWN },
1093 { 'w', REQ_SCROLL_PAGE_UP },
1094 { 's', REQ_SCROLL_PAGE_DOWN },
1097 { '/', REQ_SEARCH },
1098 { '?', REQ_SEARCH_BACK },
1099 { 'n', REQ_FIND_NEXT },
1100 { 'N', REQ_FIND_PREV },
1104 { 'z', REQ_STOP_LOADING },
1105 { 'v', REQ_SHOW_VERSION },
1106 { 'r', REQ_SCREEN_REDRAW },
1107 { '.', REQ_TOGGLE_LINENO },
1108 { 'D', REQ_TOGGLE_DATE },
1109 { 'A', REQ_TOGGLE_AUTHOR },
1110 { 'g', REQ_TOGGLE_REV_GRAPH },
1111 { 'F', REQ_TOGGLE_REFS },
1112 { ':', REQ_PROMPT },
1113 { 'u', REQ_STATUS_UPDATE },
1114 { '!', REQ_STATUS_REVERT },
1115 { 'M', REQ_STATUS_MERGE },
1116 { '@', REQ_STAGE_NEXT },
1117 { ',', REQ_PARENT },
1121 #define KEYMAP_INFO \
1135 #define KEYMAP_(name) KEYMAP_##name
1140 static const struct enum_map keymap_table[] = {
1141 #define KEYMAP_(name) ENUM_MAP(#name, KEYMAP_##name)
1146 #define set_keymap(map, name) map_enum(map, keymap_table, name)
1148 struct keybinding_table {
1149 struct keybinding *data;
1153 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
1156 add_keybinding(enum keymap keymap, enum request request, int key)
1158 struct keybinding_table *table = &keybindings[keymap];
1160 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
1162 die("Failed to allocate keybinding");
1163 table->data[table->size].alias = key;
1164 table->data[table->size++].request = request;
1167 /* Looks for a key binding first in the given map, then in the generic map, and
1168 * lastly in the default keybindings. */
1170 get_keybinding(enum keymap keymap, int key)
1174 for (i = 0; i < keybindings[keymap].size; i++)
1175 if (keybindings[keymap].data[i].alias == key)
1176 return keybindings[keymap].data[i].request;
1178 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
1179 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
1180 return keybindings[KEYMAP_GENERIC].data[i].request;
1182 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
1183 if (default_keybindings[i].alias == key)
1184 return default_keybindings[i].request;
1186 return (enum request) key;
1195 static const struct key key_table[] = {
1196 { "Enter", KEY_RETURN },
1198 { "Backspace", KEY_BACKSPACE },
1200 { "Escape", KEY_ESC },
1201 { "Left", KEY_LEFT },
1202 { "Right", KEY_RIGHT },
1204 { "Down", KEY_DOWN },
1205 { "Insert", KEY_IC },
1206 { "Delete", KEY_DC },
1208 { "Home", KEY_HOME },
1210 { "PageUp", KEY_PPAGE },
1211 { "PageDown", KEY_NPAGE },
1221 { "F10", KEY_F(10) },
1222 { "F11", KEY_F(11) },
1223 { "F12", KEY_F(12) },
1227 get_key_value(const char *name)
1231 for (i = 0; i < ARRAY_SIZE(key_table); i++)
1232 if (!strcasecmp(key_table[i].name, name))
1233 return key_table[i].value;
1235 if (strlen(name) == 1 && isprint(*name))
1242 get_key_name(int key_value)
1244 static char key_char[] = "'X'";
1245 const char *seq = NULL;
1248 for (key = 0; key < ARRAY_SIZE(key_table); key++)
1249 if (key_table[key].value == key_value)
1250 seq = key_table[key].name;
1254 isprint(key_value)) {
1255 key_char[1] = (char) key_value;
1259 return seq ? seq : "(no key)";
1263 get_key(enum request request)
1265 static char buf[BUFSIZ];
1272 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1273 const struct keybinding *keybinding = &default_keybindings[i];
1275 if (keybinding->request != request)
1278 if (!string_format_from(buf, &pos, "%s%s", sep,
1279 get_key_name(keybinding->alias)))
1280 return "Too many keybindings!";
1287 struct run_request {
1290 const char *argv[SIZEOF_ARG];
1293 static struct run_request *run_request;
1294 static size_t run_requests;
1297 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
1299 struct run_request *req;
1301 if (argc >= ARRAY_SIZE(req->argv) - 1)
1304 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1309 req = &run_request[run_requests];
1310 req->keymap = keymap;
1312 req->argv[0] = NULL;
1314 if (!format_argv(req->argv, argv, FORMAT_NONE))
1317 return REQ_NONE + ++run_requests;
1320 static struct run_request *
1321 get_run_request(enum request request)
1323 if (request <= REQ_NONE)
1325 return &run_request[request - REQ_NONE - 1];
1329 add_builtin_run_requests(void)
1331 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
1332 const char *gc[] = { "git", "gc", NULL };
1339 { KEYMAP_MAIN, 'C', ARRAY_SIZE(cherry_pick) - 1, cherry_pick },
1340 { KEYMAP_GENERIC, 'G', ARRAY_SIZE(gc) - 1, gc },
1344 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1347 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argc, reqs[i].argv);
1348 if (req != REQ_NONE)
1349 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1354 * User config file handling.
1357 static int config_lineno;
1358 static bool config_errors;
1359 static const char *config_msg;
1361 static const struct enum_map color_map[] = {
1362 #define COLOR_MAP(name) ENUM_MAP(#name, COLOR_##name)
1374 static const struct enum_map attr_map[] = {
1375 #define ATTR_MAP(name) ENUM_MAP(#name, A_##name)
1382 ATTR_MAP(UNDERLINE),
1385 #define set_attribute(attr, name) map_enum(attr, attr_map, name)
1387 static int parse_step(double *opt, const char *arg)
1390 if (!strchr(arg, '%'))
1393 /* "Shift down" so 100% and 1 does not conflict. */
1394 *opt = (*opt - 1) / 100;
1397 config_msg = "Step value larger than 100%";
1402 config_msg = "Invalid step value";
1409 parse_int(int *opt, const char *arg, int min, int max)
1411 int value = atoi(arg);
1413 if (min <= value && value <= max) {
1418 config_msg = "Integer value out of bound";
1423 set_color(int *color, const char *name)
1425 if (map_enum(color, color_map, name))
1427 if (!prefixcmp(name, "color"))
1428 return parse_int(color, name + 5, 0, 255) == OK;
1432 /* Wants: object fgcolor bgcolor [attribute] */
1434 option_color_command(int argc, const char *argv[])
1436 struct line_info *info;
1438 if (argc != 3 && argc != 4) {
1439 config_msg = "Wrong number of arguments given to color command";
1443 info = get_line_info(argv[0]);
1445 static const struct enum_map obsolete[] = {
1446 ENUM_MAP("main-delim", LINE_DELIMITER),
1447 ENUM_MAP("main-date", LINE_DATE),
1448 ENUM_MAP("main-author", LINE_AUTHOR),
1452 if (!map_enum(&index, obsolete, argv[0])) {
1453 config_msg = "Unknown color name";
1456 info = &line_info[index];
1459 if (!set_color(&info->fg, argv[1]) ||
1460 !set_color(&info->bg, argv[2])) {
1461 config_msg = "Unknown color";
1465 if (argc == 4 && !set_attribute(&info->attr, argv[3])) {
1466 config_msg = "Unknown attribute";
1473 static int parse_bool(bool *opt, const char *arg)
1475 *opt = (!strcmp(arg, "1") || !strcmp(arg, "true") || !strcmp(arg, "yes"))
1481 parse_string(char *opt, const char *arg, size_t optsize)
1483 int arglen = strlen(arg);
1488 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1489 config_msg = "Unmatched quotation";
1492 arg += 1; arglen -= 2;
1494 string_ncopy_do(opt, optsize, arg, arglen);
1499 /* Wants: name = value */
1501 option_set_command(int argc, const char *argv[])
1504 config_msg = "Wrong number of arguments given to set command";
1508 if (strcmp(argv[1], "=")) {
1509 config_msg = "No value assigned";
1513 if (!strcmp(argv[0], "show-author"))
1514 return parse_bool(&opt_author, argv[2]);
1516 if (!strcmp(argv[0], "show-date"))
1517 return parse_bool(&opt_date, argv[2]);
1519 if (!strcmp(argv[0], "show-rev-graph"))
1520 return parse_bool(&opt_rev_graph, argv[2]);
1522 if (!strcmp(argv[0], "show-refs"))
1523 return parse_bool(&opt_show_refs, argv[2]);
1525 if (!strcmp(argv[0], "show-line-numbers"))
1526 return parse_bool(&opt_line_number, argv[2]);
1528 if (!strcmp(argv[0], "line-graphics"))
1529 return parse_bool(&opt_line_graphics, argv[2]);
1531 if (!strcmp(argv[0], "line-number-interval"))
1532 return parse_int(&opt_num_interval, argv[2], 1, 1024);
1534 if (!strcmp(argv[0], "author-width"))
1535 return parse_int(&opt_author_cols, argv[2], 0, 1024);
1537 if (!strcmp(argv[0], "horizontal-scroll"))
1538 return parse_step(&opt_hscroll, argv[2]);
1540 if (!strcmp(argv[0], "tab-size"))
1541 return parse_int(&opt_tab_size, argv[2], 1, 1024);
1543 if (!strcmp(argv[0], "commit-encoding"))
1544 return parse_string(opt_encoding, argv[2], sizeof(opt_encoding));
1546 config_msg = "Unknown variable name";
1550 /* Wants: mode request key */
1552 option_bind_command(int argc, const char *argv[])
1554 enum request request;
1559 config_msg = "Wrong number of arguments given to bind command";
1563 if (set_keymap(&keymap, argv[0]) == ERR) {
1564 config_msg = "Unknown key map";
1568 key = get_key_value(argv[1]);
1570 config_msg = "Unknown key";
1574 request = get_request(argv[2]);
1575 if (request == REQ_NONE) {
1576 static const struct enum_map obsolete[] = {
1577 ENUM_MAP("cherry-pick", REQ_NONE),
1578 ENUM_MAP("screen-resize", REQ_NONE),
1579 ENUM_MAP("tree-parent", REQ_PARENT),
1583 if (map_enum(&alias, obsolete, argv[2])) {
1584 if (alias != REQ_NONE)
1585 add_keybinding(keymap, alias, key);
1586 config_msg = "Obsolete request name";
1590 if (request == REQ_NONE && *argv[2]++ == '!')
1591 request = add_run_request(keymap, key, argc - 2, argv + 2);
1592 if (request == REQ_NONE) {
1593 config_msg = "Unknown request name";
1597 add_keybinding(keymap, request, key);
1603 set_option(const char *opt, char *value)
1605 const char *argv[SIZEOF_ARG];
1608 if (!argv_from_string(argv, &argc, value)) {
1609 config_msg = "Too many option arguments";
1613 if (!strcmp(opt, "color"))
1614 return option_color_command(argc, argv);
1616 if (!strcmp(opt, "set"))
1617 return option_set_command(argc, argv);
1619 if (!strcmp(opt, "bind"))
1620 return option_bind_command(argc, argv);
1622 config_msg = "Unknown option command";
1627 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1632 config_msg = "Internal error";
1634 /* Check for comment markers, since read_properties() will
1635 * only ensure opt and value are split at first " \t". */
1636 optlen = strcspn(opt, "#");
1640 if (opt[optlen] != 0) {
1641 config_msg = "No option value";
1645 /* Look for comment endings in the value. */
1646 size_t len = strcspn(value, "#");
1648 if (len < valuelen) {
1650 value[valuelen] = 0;
1653 status = set_option(opt, value);
1656 if (status == ERR) {
1657 warn("Error on line %d, near '%.*s': %s",
1658 config_lineno, (int) optlen, opt, config_msg);
1659 config_errors = TRUE;
1662 /* Always keep going if errors are encountered. */
1667 load_option_file(const char *path)
1671 /* It's OK that the file doesn't exist. */
1672 if (!io_open(&io, path))
1676 config_errors = FALSE;
1678 if (io_load(&io, " \t", read_option) == ERR ||
1679 config_errors == TRUE)
1680 warn("Errors while loading %s.", path);
1686 const char *home = getenv("HOME");
1687 const char *tigrc_user = getenv("TIGRC_USER");
1688 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1689 char buf[SIZEOF_STR];
1691 add_builtin_run_requests();
1694 tigrc_system = SYSCONFDIR "/tigrc";
1695 load_option_file(tigrc_system);
1698 if (!home || !string_format(buf, "%s/.tigrc", home))
1702 load_option_file(tigrc_user);
1715 /* The display array of active views and the index of the current view. */
1716 static struct view *display[2];
1717 static unsigned int current_view;
1719 #define foreach_displayed_view(view, i) \
1720 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1722 #define displayed_views() (display[1] != NULL ? 2 : 1)
1724 /* Current head and commit ID */
1725 static char ref_blob[SIZEOF_REF] = "";
1726 static char ref_commit[SIZEOF_REF] = "HEAD";
1727 static char ref_head[SIZEOF_REF] = "HEAD";
1730 const char *name; /* View name */
1731 const char *cmd_env; /* Command line set via environment */
1732 const char *id; /* Points to either of ref_{head,commit,blob} */
1734 struct view_ops *ops; /* View operations */
1736 enum keymap keymap; /* What keymap does this view have */
1737 bool git_dir; /* Whether the view requires a git directory. */
1739 char ref[SIZEOF_REF]; /* Hovered commit reference */
1740 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1742 int height, width; /* The width and height of the main window */
1743 WINDOW *win; /* The main window */
1744 WINDOW *title; /* The title window living below the main window */
1747 unsigned long offset; /* Offset of the window top */
1748 unsigned long yoffset; /* Offset from the window side. */
1749 unsigned long lineno; /* Current line number */
1750 unsigned long p_offset; /* Previous offset of the window top */
1751 unsigned long p_yoffset;/* Previous offset from the window side */
1752 unsigned long p_lineno; /* Previous current line number */
1753 bool p_restore; /* Should the previous position be restored. */
1756 char grep[SIZEOF_STR]; /* Search string */
1757 regex_t *regex; /* Pre-compiled regexp */
1759 /* If non-NULL, points to the view that opened this view. If this view
1760 * is closed tig will switch back to the parent view. */
1761 struct view *parent;
1764 size_t lines; /* Total number of lines */
1765 struct line *line; /* Line index */
1766 size_t line_alloc; /* Total number of allocated lines */
1767 unsigned int digits; /* Number of digits in the lines member. */
1770 struct line *curline; /* Line currently being drawn. */
1771 enum line_type curtype; /* Attribute currently used for drawing. */
1772 unsigned long col; /* Column when drawing. */
1773 bool has_scrolled; /* View was scrolled. */
1783 /* What type of content being displayed. Used in the title bar. */
1785 /* Default command arguments. */
1787 /* Open and reads in all view content. */
1788 bool (*open)(struct view *view);
1789 /* Read one line; updates view->line. */
1790 bool (*read)(struct view *view, char *data);
1791 /* Draw one line; @lineno must be < view->height. */
1792 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1793 /* Depending on view handle a special requests. */
1794 enum request (*request)(struct view *view, enum request request, struct line *line);
1795 /* Search for regexp in a line. */
1796 bool (*grep)(struct view *view, struct line *line);
1798 void (*select)(struct view *view, struct line *line);
1801 static struct view_ops blame_ops;
1802 static struct view_ops blob_ops;
1803 static struct view_ops diff_ops;
1804 static struct view_ops help_ops;
1805 static struct view_ops log_ops;
1806 static struct view_ops main_ops;
1807 static struct view_ops pager_ops;
1808 static struct view_ops stage_ops;
1809 static struct view_ops status_ops;
1810 static struct view_ops tree_ops;
1812 #define VIEW_STR(name, env, ref, ops, map, git) \
1813 { name, #env, ref, ops, map, git }
1815 #define VIEW_(id, name, ops, git, ref) \
1816 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1819 static struct view views[] = {
1820 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1821 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1822 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1823 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1824 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1825 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1826 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1827 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1828 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1829 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1832 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1833 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1835 #define foreach_view(view, i) \
1836 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1838 #define view_is_displayed(view) \
1839 (view == display[0] || view == display[1])
1846 static int line_graphics[] = {
1847 /* LINE_GRAPHIC_VLINE: */ '|'
1851 set_view_attr(struct view *view, enum line_type type)
1853 if (!view->curline->selected && view->curtype != type) {
1854 wattrset(view->win, get_line_attr(type));
1855 wchgat(view->win, -1, 0, type, NULL);
1856 view->curtype = type;
1861 draw_chars(struct view *view, enum line_type type, const char *string,
1862 int max_len, bool use_tilde)
1866 int trimmed = FALSE;
1867 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1873 len = utf8_length(&string, skip, &col, max_len, &trimmed, use_tilde);
1875 col = len = strlen(string);
1876 if (len > max_len) {
1880 col = len = max_len;
1885 set_view_attr(view, type);
1887 waddnstr(view->win, string, len);
1888 if (trimmed && use_tilde) {
1889 set_view_attr(view, LINE_DELIMITER);
1890 waddch(view->win, '~');
1898 draw_space(struct view *view, enum line_type type, int max, int spaces)
1900 static char space[] = " ";
1903 spaces = MIN(max, spaces);
1905 while (spaces > 0) {
1906 int len = MIN(spaces, sizeof(space) - 1);
1908 col += draw_chars(view, type, space, spaces, FALSE);
1916 draw_lineno(struct view *view, unsigned int lineno)
1918 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1920 int digits3 = view->digits < 3 ? 3 : view->digits;
1921 int max_number = MIN(digits3, STRING_SIZE(number));
1922 int max = view->width - view->col;
1925 if (max < max_number)
1928 lineno += view->offset + 1;
1929 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1930 static char fmt[] = "%1ld";
1932 if (view->digits <= 9)
1933 fmt[1] = '0' + digits3;
1935 if (!string_format(number, fmt, lineno))
1937 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1939 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1942 if (col < max && skip <= col) {
1943 set_view_attr(view, LINE_DEFAULT);
1944 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1949 if (col < max && skip <= col)
1950 col = draw_space(view, LINE_DEFAULT, max - col, 1);
1953 return view->width + view->yoffset <= view->col;
1957 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1959 view->col += draw_chars(view, type, string, view->width + view->yoffset - view->col, trim);
1960 return view->width + view->yoffset <= view->col;
1964 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1966 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1967 int max = view->width + view->yoffset - view->col;
1973 set_view_attr(view, type);
1974 /* Using waddch() instead of waddnstr() ensures that
1975 * they'll be rendered correctly for the cursor line. */
1976 for (i = skip; i < size; i++)
1977 waddch(view->win, graphic[i]);
1980 if (size < max && skip <= size)
1981 waddch(view->win, ' ');
1984 return view->width + view->yoffset <= view->col;
1988 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1990 int max = MIN(view->width + view->yoffset - view->col, len);
1994 col = draw_chars(view, type, text, max - 1, trim);
1996 col = draw_space(view, type, max - 1, max - 1);
1999 view->col += draw_space(view, LINE_DEFAULT, max - col, max - col);
2000 return view->width + view->yoffset <= view->col;
2004 draw_date(struct view *view, struct tm *time)
2006 char buf[DATE_COLS];
2011 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
2012 date = timelen ? buf : NULL;
2014 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
2018 draw_author(struct view *view, const char *author)
2020 bool trim = opt_author_cols == 0 || opt_author_cols > 5 || !author;
2023 static char initials[10];
2026 #define is_initial_sep(c) (isspace(c) || ispunct(c) || (c) == '@')
2028 memset(initials, 0, sizeof(initials));
2029 for (pos = 0; *author && pos < opt_author_cols - 1; author++, pos++) {
2030 while (is_initial_sep(*author))
2032 strncpy(&initials[pos], author, sizeof(initials) - 1 - pos);
2033 while (*author && !is_initial_sep(author[1]))
2040 return draw_field(view, LINE_AUTHOR, author, opt_author_cols, trim);
2044 draw_mode(struct view *view, mode_t mode)
2050 else if (S_ISLNK(mode))
2052 else if (S_ISGITLINK(mode))
2054 else if (S_ISREG(mode) && mode & S_IXUSR)
2056 else if (S_ISREG(mode))
2061 return draw_field(view, LINE_MODE, str, STRING_SIZE("-rw-r--r-- "), FALSE);
2065 draw_view_line(struct view *view, unsigned int lineno)
2068 bool selected = (view->offset + lineno == view->lineno);
2070 assert(view_is_displayed(view));
2072 if (view->offset + lineno >= view->lines)
2075 line = &view->line[view->offset + lineno];
2077 wmove(view->win, lineno, 0);
2079 wclrtoeol(view->win);
2081 view->curline = line;
2082 view->curtype = LINE_NONE;
2083 line->selected = FALSE;
2084 line->dirty = line->cleareol = 0;
2087 set_view_attr(view, LINE_CURSOR);
2088 line->selected = TRUE;
2089 view->ops->select(view, line);
2092 return view->ops->draw(view, line, lineno);
2096 redraw_view_dirty(struct view *view)
2101 for (lineno = 0; lineno < view->height; lineno++) {
2102 if (view->offset + lineno >= view->lines)
2104 if (!view->line[view->offset + lineno].dirty)
2107 if (!draw_view_line(view, lineno))
2113 wnoutrefresh(view->win);
2117 redraw_view_from(struct view *view, int lineno)
2119 assert(0 <= lineno && lineno < view->height);
2121 for (; lineno < view->height; lineno++) {
2122 if (!draw_view_line(view, lineno))
2126 wnoutrefresh(view->win);
2130 redraw_view(struct view *view)
2133 redraw_view_from(view, 0);
2138 update_view_title(struct view *view)
2140 char buf[SIZEOF_STR];
2141 char state[SIZEOF_STR];
2142 size_t bufpos = 0, statelen = 0;
2144 assert(view_is_displayed(view));
2146 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2147 unsigned int view_lines = view->offset + view->height;
2148 unsigned int lines = view->lines
2149 ? MIN(view_lines, view->lines) * 100 / view->lines
2152 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2161 time_t secs = time(NULL) - view->start_time;
2163 /* Three git seconds are a long time ... */
2165 string_format_from(state, &statelen, " loading %lds", secs);
2168 string_format_from(buf, &bufpos, "[%s]", view->name);
2169 if (*view->ref && bufpos < view->width) {
2170 size_t refsize = strlen(view->ref);
2171 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2173 if (minsize < view->width)
2174 refsize = view->width - minsize + 7;
2175 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2178 if (statelen && bufpos < view->width) {
2179 string_format_from(buf, &bufpos, "%s", state);
2182 if (view == display[current_view])
2183 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2185 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2187 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2188 wclrtoeol(view->title);
2189 wnoutrefresh(view->title);
2193 resize_display(void)
2196 struct view *base = display[0];
2197 struct view *view = display[1] ? display[1] : display[0];
2199 /* Setup window dimensions */
2201 getmaxyx(stdscr, base->height, base->width);
2203 /* Make room for the status window. */
2207 /* Horizontal split. */
2208 view->width = base->width;
2209 view->height = SCALE_SPLIT_VIEW(base->height);
2210 base->height -= view->height;
2212 /* Make room for the title bar. */
2216 /* Make room for the title bar. */
2221 foreach_displayed_view (view, i) {
2223 view->win = newwin(view->height, 0, offset, 0);
2225 die("Failed to create %s view", view->name);
2227 scrollok(view->win, FALSE);
2229 view->title = newwin(1, 0, offset + view->height, 0);
2231 die("Failed to create title window");
2234 wresize(view->win, view->height, view->width);
2235 mvwin(view->win, offset, 0);
2236 mvwin(view->title, offset + view->height, 0);
2239 offset += view->height + 1;
2244 redraw_display(bool clear)
2249 foreach_displayed_view (view, i) {
2253 update_view_title(view);
2258 toggle_view_option(bool *option, const char *help)
2261 redraw_display(FALSE);
2262 report("%sabling %s", *option ? "En" : "Dis", help);
2266 maximize_view(struct view *view)
2268 memset(display, 0, sizeof(display));
2270 display[current_view] = view;
2272 redraw_display(FALSE);
2282 goto_view_line(struct view *view, unsigned long offset, unsigned long lineno)
2284 if (lineno >= view->lines)
2285 lineno = view->lines > 0 ? view->lines - 1 : 0;
2287 if (offset > lineno || offset + view->height <= lineno) {
2288 unsigned long half = view->height / 2;
2291 offset = lineno - half;
2296 if (offset != view->offset || lineno != view->lineno) {
2297 view->offset = offset;
2298 view->lineno = lineno;
2306 apply_step(double step, int value)
2310 value *= step + 0.01;
2311 return value ? value : 1;
2314 /* Scrolling backend */
2316 do_scroll_view(struct view *view, int lines)
2318 bool redraw_current_line = FALSE;
2320 /* The rendering expects the new offset. */
2321 view->offset += lines;
2323 assert(0 <= view->offset && view->offset < view->lines);
2326 /* Move current line into the view. */
2327 if (view->lineno < view->offset) {
2328 view->lineno = view->offset;
2329 redraw_current_line = TRUE;
2330 } else if (view->lineno >= view->offset + view->height) {
2331 view->lineno = view->offset + view->height - 1;
2332 redraw_current_line = TRUE;
2335 assert(view->offset <= view->lineno && view->lineno < view->lines);
2337 /* Redraw the whole screen if scrolling is pointless. */
2338 if (view->height < ABS(lines)) {
2342 int line = lines > 0 ? view->height - lines : 0;
2343 int end = line + ABS(lines);
2345 scrollok(view->win, TRUE);
2346 wscrl(view->win, lines);
2347 scrollok(view->win, FALSE);
2349 while (line < end && draw_view_line(view, line))
2352 if (redraw_current_line)
2353 draw_view_line(view, view->lineno - view->offset);
2354 wnoutrefresh(view->win);
2357 view->has_scrolled = TRUE;
2361 /* Scroll frontend */
2363 scroll_view(struct view *view, enum request request)
2367 assert(view_is_displayed(view));
2370 case REQ_SCROLL_LEFT:
2371 if (view->yoffset == 0) {
2372 report("Cannot scroll beyond the first column");
2375 if (view->yoffset <= apply_step(opt_hscroll, view->width))
2378 view->yoffset -= apply_step(opt_hscroll, view->width);
2379 redraw_view_from(view, 0);
2382 case REQ_SCROLL_RIGHT:
2383 view->yoffset += apply_step(opt_hscroll, view->width);
2387 case REQ_SCROLL_PAGE_DOWN:
2388 lines = view->height;
2389 case REQ_SCROLL_LINE_DOWN:
2390 if (view->offset + lines > view->lines)
2391 lines = view->lines - view->offset;
2393 if (lines == 0 || view->offset + view->height >= view->lines) {
2394 report("Cannot scroll beyond the last line");
2399 case REQ_SCROLL_PAGE_UP:
2400 lines = view->height;
2401 case REQ_SCROLL_LINE_UP:
2402 if (lines > view->offset)
2403 lines = view->offset;
2406 report("Cannot scroll beyond the first line");
2414 die("request %d not handled in switch", request);
2417 do_scroll_view(view, lines);
2422 move_view(struct view *view, enum request request)
2424 int scroll_steps = 0;
2428 case REQ_MOVE_FIRST_LINE:
2429 steps = -view->lineno;
2432 case REQ_MOVE_LAST_LINE:
2433 steps = view->lines - view->lineno - 1;
2436 case REQ_MOVE_PAGE_UP:
2437 steps = view->height > view->lineno
2438 ? -view->lineno : -view->height;
2441 case REQ_MOVE_PAGE_DOWN:
2442 steps = view->lineno + view->height >= view->lines
2443 ? view->lines - view->lineno - 1 : view->height;
2455 die("request %d not handled in switch", request);
2458 if (steps <= 0 && view->lineno == 0) {
2459 report("Cannot move beyond the first line");
2462 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2463 report("Cannot move beyond the last line");
2467 /* Move the current line */
2468 view->lineno += steps;
2469 assert(0 <= view->lineno && view->lineno < view->lines);
2471 /* Check whether the view needs to be scrolled */
2472 if (view->lineno < view->offset ||
2473 view->lineno >= view->offset + view->height) {
2474 scroll_steps = steps;
2475 if (steps < 0 && -steps > view->offset) {
2476 scroll_steps = -view->offset;
2478 } else if (steps > 0) {
2479 if (view->lineno == view->lines - 1 &&
2480 view->lines > view->height) {
2481 scroll_steps = view->lines - view->offset - 1;
2482 if (scroll_steps >= view->height)
2483 scroll_steps -= view->height - 1;
2488 if (!view_is_displayed(view)) {
2489 view->offset += scroll_steps;
2490 assert(0 <= view->offset && view->offset < view->lines);
2491 view->ops->select(view, &view->line[view->lineno]);
2495 /* Repaint the old "current" line if we be scrolling */
2496 if (ABS(steps) < view->height)
2497 draw_view_line(view, view->lineno - steps - view->offset);
2500 do_scroll_view(view, scroll_steps);
2504 /* Draw the current line */
2505 draw_view_line(view, view->lineno - view->offset);
2507 wnoutrefresh(view->win);
2516 static void search_view(struct view *view, enum request request);
2519 select_view_line(struct view *view, unsigned long lineno)
2521 unsigned long old_lineno = view->lineno;
2522 unsigned long old_offset = view->offset;
2524 if (goto_view_line(view, view->offset, lineno)) {
2525 if (view_is_displayed(view)) {
2526 if (old_offset != view->offset) {
2529 draw_view_line(view, old_lineno - view->offset);
2530 draw_view_line(view, view->lineno - view->offset);
2531 wnoutrefresh(view->win);
2534 view->ops->select(view, &view->line[view->lineno]);
2540 find_next(struct view *view, enum request request)
2542 unsigned long lineno = view->lineno;
2547 report("No previous search");
2549 search_view(view, request);
2559 case REQ_SEARCH_BACK:
2568 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2569 lineno += direction;
2571 /* Note, lineno is unsigned long so will wrap around in which case it
2572 * will become bigger than view->lines. */
2573 for (; lineno < view->lines; lineno += direction) {
2574 if (view->ops->grep(view, &view->line[lineno])) {
2575 select_view_line(view, lineno);
2576 report("Line %ld matches '%s'", lineno + 1, view->grep);
2581 report("No match found for '%s'", view->grep);
2585 search_view(struct view *view, enum request request)
2590 regfree(view->regex);
2593 view->regex = calloc(1, sizeof(*view->regex));
2598 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2599 if (regex_err != 0) {
2600 char buf[SIZEOF_STR] = "unknown error";
2602 regerror(regex_err, view->regex, buf, sizeof(buf));
2603 report("Search failed: %s", buf);
2607 string_copy(view->grep, opt_search);
2609 find_next(view, request);
2613 * Incremental updating
2617 reset_view(struct view *view)
2621 for (i = 0; i < view->lines; i++)
2622 free(view->line[i].data);
2625 view->p_offset = view->offset;
2626 view->p_yoffset = view->yoffset;
2627 view->p_lineno = view->lineno;
2634 view->line_alloc = 0;
2636 view->update_secs = 0;
2640 free_argv(const char *argv[])
2644 for (argc = 0; argv[argc]; argc++)
2645 free((void *) argv[argc]);
2649 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2651 char buf[SIZEOF_STR];
2653 bool noreplace = flags == FORMAT_NONE;
2655 free_argv(dst_argv);
2657 for (argc = 0; src_argv[argc]; argc++) {
2658 const char *arg = src_argv[argc];
2662 char *next = strstr(arg, "%(");
2663 int len = next - arg;
2666 if (!next || noreplace) {
2667 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2672 } else if (!prefixcmp(next, "%(directory)")) {
2675 } else if (!prefixcmp(next, "%(file)")) {
2678 } else if (!prefixcmp(next, "%(ref)")) {
2679 value = *opt_ref ? opt_ref : "HEAD";
2681 } else if (!prefixcmp(next, "%(head)")) {
2684 } else if (!prefixcmp(next, "%(commit)")) {
2687 } else if (!prefixcmp(next, "%(blob)")) {
2691 report("Unknown replacement: `%s`", next);
2695 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2698 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2701 dst_argv[argc] = strdup(buf);
2702 if (!dst_argv[argc])
2706 dst_argv[argc] = NULL;
2708 return src_argv[argc] == NULL;
2712 restore_view_position(struct view *view)
2714 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2717 /* Changing the view position cancels the restoring. */
2718 /* FIXME: Changing back to the first line is not detected. */
2719 if (view->offset != 0 || view->lineno != 0) {
2720 view->p_restore = FALSE;
2724 if (goto_view_line(view, view->p_offset, view->p_lineno) &&
2725 view_is_displayed(view))
2728 view->yoffset = view->p_yoffset;
2729 view->p_restore = FALSE;
2735 end_update(struct view *view, bool force)
2739 while (!view->ops->read(view, NULL))
2742 set_nonblocking_input(FALSE);
2744 kill_io(view->pipe);
2745 done_io(view->pipe);
2750 setup_update(struct view *view, const char *vid)
2752 set_nonblocking_input(TRUE);
2754 string_copy_rev(view->vid, vid);
2755 view->pipe = &view->io;
2756 view->start_time = time(NULL);
2760 prepare_update(struct view *view, const char *argv[], const char *dir,
2761 enum format_flags flags)
2764 end_update(view, TRUE);
2765 return init_io_rd(&view->io, argv, dir, flags);
2769 prepare_update_file(struct view *view, const char *name)
2772 end_update(view, TRUE);
2773 return io_open(&view->io, name);
2777 begin_update(struct view *view, bool refresh)
2780 end_update(view, TRUE);
2783 if (!start_io(&view->io))
2787 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2790 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2793 /* Put the current ref_* value to the view title ref
2794 * member. This is needed by the blob view. Most other
2795 * views sets it automatically after loading because the
2796 * first line is a commit line. */
2797 string_copy_rev(view->ref, view->id);
2800 setup_update(view, view->id);
2805 #define ITEM_CHUNK_SIZE 256
2807 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2809 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2810 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2812 if (mem == NULL || num_chunks != num_chunks_new) {
2813 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2814 mem = realloc(mem, *size * item_size);
2820 static struct line *
2821 realloc_lines(struct view *view, size_t line_size)
2823 size_t alloc = view->line_alloc;
2824 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2825 sizeof(*view->line));
2831 view->line_alloc = alloc;
2836 update_view(struct view *view)
2838 char out_buffer[BUFSIZ * 2];
2840 /* Clear the view and redraw everything since the tree sorting
2841 * might have rearranged things. */
2842 bool redraw = view->lines == 0;
2843 bool can_read = TRUE;
2848 if (!io_can_read(view->pipe)) {
2849 if (view->lines == 0 && view_is_displayed(view)) {
2850 time_t secs = time(NULL) - view->start_time;
2852 if (secs > 1 && secs > view->update_secs) {
2853 if (view->update_secs == 0)
2855 update_view_title(view);
2856 view->update_secs = secs;
2862 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2863 if (opt_iconv != ICONV_NONE) {
2864 ICONV_CONST char *inbuf = line;
2865 size_t inlen = strlen(line) + 1;
2867 char *outbuf = out_buffer;
2868 size_t outlen = sizeof(out_buffer);
2872 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2873 if (ret != (size_t) -1)
2877 if (!view->ops->read(view, line)) {
2878 report("Allocation failure");
2879 end_update(view, TRUE);
2885 unsigned long lines = view->lines;
2888 for (digits = 0; lines; digits++)
2891 /* Keep the displayed view in sync with line number scaling. */
2892 if (digits != view->digits) {
2893 view->digits = digits;
2894 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2899 if (io_error(view->pipe)) {
2900 report("Failed to read: %s", io_strerror(view->pipe));
2901 end_update(view, TRUE);
2903 } else if (io_eof(view->pipe)) {
2905 end_update(view, FALSE);
2908 if (restore_view_position(view))
2911 if (!view_is_displayed(view))
2915 redraw_view_from(view, 0);
2917 redraw_view_dirty(view);
2919 /* Update the title _after_ the redraw so that if the redraw picks up a
2920 * commit reference in view->ref it'll be available here. */
2921 update_view_title(view);
2925 static struct line *
2926 add_line_data(struct view *view, void *data, enum line_type type)
2930 if (!realloc_lines(view, view->lines + 1))
2933 line = &view->line[view->lines++];
2934 memset(line, 0, sizeof(*line));
2942 static struct line *
2943 add_line_text(struct view *view, const char *text, enum line_type type)
2945 char *data = text ? strdup(text) : NULL;
2947 return data ? add_line_data(view, data, type) : NULL;
2950 static struct line *
2951 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2953 char buf[SIZEOF_STR];
2956 va_start(args, fmt);
2957 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2961 return buf[0] ? add_line_text(view, buf, type) : NULL;
2969 OPEN_DEFAULT = 0, /* Use default view switching. */
2970 OPEN_SPLIT = 1, /* Split current view. */
2971 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2972 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2973 OPEN_PREPARED = 32, /* Open already prepared command. */
2977 open_view(struct view *prev, enum request request, enum open_flags flags)
2979 bool split = !!(flags & OPEN_SPLIT);
2980 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2981 bool nomaximize = !!(flags & OPEN_REFRESH);
2982 struct view *view = VIEW(request);
2983 int nviews = displayed_views();
2984 struct view *base_view = display[0];
2986 if (view == prev && nviews == 1 && !reload) {
2987 report("Already in %s view", view->name);
2991 if (view->git_dir && !opt_git_dir[0]) {
2992 report("The %s view is disabled in pager view", view->name);
2999 } else if (!nomaximize) {
3000 /* Maximize the current view. */
3001 memset(display, 0, sizeof(display));
3003 display[current_view] = view;
3006 /* Resize the view when switching between split- and full-screen,
3007 * or when switching between two different full-screen views. */
3008 if (nviews != displayed_views() ||
3009 (nviews == 1 && base_view != display[0]))
3012 if (view->ops->open) {
3014 end_update(view, TRUE);
3015 if (!view->ops->open(view)) {
3016 report("Failed to load %s view", view->name);
3019 restore_view_position(view);
3021 } else if ((reload || strcmp(view->vid, view->id)) &&
3022 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
3023 report("Failed to load %s view", view->name);
3027 if (split && prev->lineno - prev->offset >= prev->height) {
3028 /* Take the title line into account. */
3029 int lines = prev->lineno - prev->offset - prev->height + 1;
3031 /* Scroll the view that was split if the current line is
3032 * outside the new limited view. */
3033 do_scroll_view(prev, lines);
3036 if (prev && view != prev) {
3038 /* "Blur" the previous view. */
3039 update_view_title(prev);
3042 view->parent = prev;
3045 if (view->pipe && view->lines == 0) {
3046 /* Clear the old view and let the incremental updating refill
3049 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
3051 } else if (view_is_displayed(view)) {
3058 open_external_viewer(const char *argv[], const char *dir)
3060 def_prog_mode(); /* save current tty modes */
3061 endwin(); /* restore original tty modes */
3062 run_io_fg(argv, dir);
3063 fprintf(stderr, "Press Enter to continue");
3066 redraw_display(TRUE);
3070 open_mergetool(const char *file)
3072 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
3074 open_external_viewer(mergetool_argv, opt_cdup);
3078 open_editor(bool from_root, const char *file)
3080 const char *editor_argv[] = { "vi", file, NULL };
3083 editor = getenv("GIT_EDITOR");
3084 if (!editor && *opt_editor)
3085 editor = opt_editor;
3087 editor = getenv("VISUAL");
3089 editor = getenv("EDITOR");
3093 editor_argv[0] = editor;
3094 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3098 open_run_request(enum request request)
3100 struct run_request *req = get_run_request(request);
3101 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3104 report("Unknown run request");
3108 if (format_argv(argv, req->argv, FORMAT_ALL))
3109 open_external_viewer(argv, NULL);
3114 * User request switch noodle
3118 view_driver(struct view *view, enum request request)
3122 if (request == REQ_NONE) {
3127 if (request > REQ_NONE) {
3128 open_run_request(request);
3129 /* FIXME: When all views can refresh always do this. */
3130 if (view == VIEW(REQ_VIEW_STATUS) ||
3131 view == VIEW(REQ_VIEW_MAIN) ||
3132 view == VIEW(REQ_VIEW_LOG) ||
3133 view == VIEW(REQ_VIEW_STAGE))
3134 request = REQ_REFRESH;
3139 if (view && view->lines) {
3140 request = view->ops->request(view, request, &view->line[view->lineno]);
3141 if (request == REQ_NONE)
3148 case REQ_MOVE_PAGE_UP:
3149 case REQ_MOVE_PAGE_DOWN:
3150 case REQ_MOVE_FIRST_LINE:
3151 case REQ_MOVE_LAST_LINE:
3152 move_view(view, request);
3155 case REQ_SCROLL_LEFT:
3156 case REQ_SCROLL_RIGHT:
3157 case REQ_SCROLL_LINE_DOWN:
3158 case REQ_SCROLL_LINE_UP:
3159 case REQ_SCROLL_PAGE_DOWN:
3160 case REQ_SCROLL_PAGE_UP:
3161 scroll_view(view, request);
3164 case REQ_VIEW_BLAME:
3166 report("No file chosen, press %s to open tree view",
3167 get_key(REQ_VIEW_TREE));
3170 open_view(view, request, OPEN_DEFAULT);
3175 report("No file chosen, press %s to open tree view",
3176 get_key(REQ_VIEW_TREE));
3179 open_view(view, request, OPEN_DEFAULT);
3182 case REQ_VIEW_PAGER:
3183 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3184 report("No pager content, press %s to run command from prompt",
3185 get_key(REQ_PROMPT));
3188 open_view(view, request, OPEN_DEFAULT);
3191 case REQ_VIEW_STAGE:
3192 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3193 report("No stage content, press %s to open the status view and choose file",
3194 get_key(REQ_VIEW_STATUS));
3197 open_view(view, request, OPEN_DEFAULT);
3200 case REQ_VIEW_STATUS:
3201 if (opt_is_inside_work_tree == FALSE) {
3202 report("The status view requires a working tree");
3205 open_view(view, request, OPEN_DEFAULT);
3213 open_view(view, request, OPEN_DEFAULT);
3218 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3220 if ((view == VIEW(REQ_VIEW_DIFF) &&
3221 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3222 (view == VIEW(REQ_VIEW_DIFF) &&
3223 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3224 (view == VIEW(REQ_VIEW_STAGE) &&
3225 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3226 (view == VIEW(REQ_VIEW_BLOB) &&
3227 view->parent == VIEW(REQ_VIEW_TREE))) {
3230 view = view->parent;
3231 line = view->lineno;
3232 move_view(view, request);
3233 if (view_is_displayed(view))
3234 update_view_title(view);
3235 if (line != view->lineno)
3236 view->ops->request(view, REQ_ENTER,
3237 &view->line[view->lineno]);
3240 move_view(view, request);
3246 int nviews = displayed_views();
3247 int next_view = (current_view + 1) % nviews;
3249 if (next_view == current_view) {
3250 report("Only one view is displayed");
3254 current_view = next_view;
3255 /* Blur out the title of the previous view. */
3256 update_view_title(view);
3261 report("Refreshing is not yet supported for the %s view", view->name);
3265 if (displayed_views() == 2)
3266 maximize_view(view);
3269 case REQ_TOGGLE_LINENO:
3270 toggle_view_option(&opt_line_number, "line numbers");
3273 case REQ_TOGGLE_DATE:
3274 toggle_view_option(&opt_date, "date display");
3277 case REQ_TOGGLE_AUTHOR:
3278 toggle_view_option(&opt_author, "author display");
3281 case REQ_TOGGLE_REV_GRAPH:
3282 toggle_view_option(&opt_rev_graph, "revision graph display");
3285 case REQ_TOGGLE_REFS:
3286 toggle_view_option(&opt_show_refs, "reference display");
3290 case REQ_SEARCH_BACK:
3291 search_view(view, request);
3296 find_next(view, request);
3299 case REQ_STOP_LOADING:
3300 for (i = 0; i < ARRAY_SIZE(views); i++) {
3303 report("Stopped loading the %s view", view->name),
3304 end_update(view, TRUE);
3308 case REQ_SHOW_VERSION:
3309 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3312 case REQ_SCREEN_REDRAW:
3313 redraw_display(TRUE);
3317 report("Nothing to edit");
3321 report("Nothing to enter");
3324 case REQ_VIEW_CLOSE:
3325 /* XXX: Mark closed views by letting view->parent point to the
3326 * view itself. Parents to closed view should never be
3329 view->parent->parent != view->parent) {
3330 maximize_view(view->parent);
3331 view->parent = view;
3339 report("Unknown key, press 'h' for help");
3348 * View backend utilities
3352 parse_timezone(time_t *time, const char *zone)
3356 tz = ('0' - zone[1]) * 60 * 60 * 10;
3357 tz += ('0' - zone[2]) * 60 * 60;
3358 tz += ('0' - zone[3]) * 60;
3359 tz += ('0' - zone[4]);
3367 /* Parse author lines where the name may be empty:
3368 * author <email@address.tld> 1138474660 +0100
3371 parse_author_line(char *ident, char *author, size_t authorsize, struct tm *tm)
3373 char *nameend = strchr(ident, '<');
3374 char *emailend = strchr(ident, '>');
3376 if (nameend && emailend)
3377 *nameend = *emailend = 0;
3378 ident = chomp_string(ident);
3381 ident = chomp_string(nameend + 1);
3386 string_ncopy_do(author, authorsize, ident, strlen(ident));
3388 /* Parse epoch and timezone */
3389 if (emailend && emailend[1] == ' ') {
3390 char *secs = emailend + 2;
3391 char *zone = strchr(secs, ' ');
3392 time_t time = (time_t) atol(secs);
3394 if (zone && strlen(zone) == STRING_SIZE(" +0700"))
3395 parse_timezone(&time, zone + 1);
3397 gmtime_r(&time, tm);
3401 static enum input_status
3402 select_commit_parent_handler(void *data, char *buf, int c)
3404 size_t parents = *(size_t *) data;
3411 parent = atoi(buf) * 10;
3414 if (parent > parents)
3420 select_commit_parent(const char *id, char rev[SIZEOF_REV], const char *path)
3422 char buf[SIZEOF_STR * 4];
3423 const char *revlist_argv[] = {
3424 "git", "rev-list", "-1", "--parents", id, "--", path, NULL
3428 if (!run_io_buf(revlist_argv, buf, sizeof(buf)) ||
3429 !*chomp_string(buf) ||
3430 (parents = (strlen(buf) / 40) - 1) < 0) {
3431 report("Failed to get parent information");
3434 } else if (parents == 0) {
3436 report("Path '%s' does not exist in the parent", path);
3438 report("The selected commit has no parents");
3443 char prompt[SIZEOF_STR];
3446 if (!string_format(prompt, "Which parent? [1..%d] ", parents))
3448 result = prompt_input(prompt, select_commit_parent_handler, &parents);
3451 parents = atoi(result);
3454 string_copy_rev(rev, &buf[41 * parents]);
3463 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3465 char text[SIZEOF_STR];
3467 if (opt_line_number && draw_lineno(view, lineno))
3470 string_expand(text, sizeof(text), line->data, opt_tab_size);
3471 draw_text(view, line->type, text, TRUE);
3476 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3478 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3479 char refbuf[SIZEOF_STR];
3482 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3483 ref = chomp_string(refbuf);
3488 /* This is the only fatal call, since it can "corrupt" the buffer. */
3489 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3496 add_pager_refs(struct view *view, struct line *line)
3498 char buf[SIZEOF_STR];
3499 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3501 size_t bufpos = 0, refpos = 0;
3502 const char *sep = "Refs: ";
3503 bool is_tag = FALSE;
3505 assert(line->type == LINE_COMMIT);
3507 refs = get_refs(commit_id);
3509 if (view == VIEW(REQ_VIEW_DIFF))
3510 goto try_add_describe_ref;
3515 struct ref *ref = refs[refpos];
3516 const char *fmt = ref->tag ? "%s[%s]" :
3517 ref->remote ? "%s<%s>" : "%s%s";
3519 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3524 } while (refs[refpos++]->next);
3526 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3527 try_add_describe_ref:
3528 /* Add <tag>-g<commit_id> "fake" reference. */
3529 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3536 add_line_text(view, buf, LINE_PP_REFS);
3540 pager_read(struct view *view, char *data)
3547 line = add_line_text(view, data, get_line_type(data));
3551 if (line->type == LINE_COMMIT &&
3552 (view == VIEW(REQ_VIEW_DIFF) ||
3553 view == VIEW(REQ_VIEW_LOG)))
3554 add_pager_refs(view, line);
3560 pager_request(struct view *view, enum request request, struct line *line)
3564 if (request != REQ_ENTER)
3567 if (line->type == LINE_COMMIT &&
3568 (view == VIEW(REQ_VIEW_LOG) ||
3569 view == VIEW(REQ_VIEW_PAGER))) {
3570 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3574 /* Always scroll the view even if it was split. That way
3575 * you can use Enter to scroll through the log view and
3576 * split open each commit diff. */
3577 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3579 /* FIXME: A minor workaround. Scrolling the view will call report("")
3580 * but if we are scrolling a non-current view this won't properly
3581 * update the view title. */
3583 update_view_title(view);
3589 pager_grep(struct view *view, struct line *line)
3592 char *text = line->data;
3597 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3604 pager_select(struct view *view, struct line *line)
3606 if (line->type == LINE_COMMIT) {
3607 char *text = (char *)line->data + STRING_SIZE("commit ");
3609 if (view != VIEW(REQ_VIEW_PAGER))
3610 string_copy_rev(view->ref, text);
3611 string_copy_rev(ref_commit, text);
3615 static struct view_ops pager_ops = {
3626 static const char *log_argv[SIZEOF_ARG] = {
3627 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3631 log_request(struct view *view, enum request request, struct line *line)
3636 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3639 return pager_request(view, request, line);
3643 static struct view_ops log_ops = {
3654 static const char *diff_argv[SIZEOF_ARG] = {
3655 "git", "show", "--pretty=fuller", "--no-color", "--root",
3656 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3659 static struct view_ops diff_ops = {
3675 help_open(struct view *view)
3677 char buf[SIZEOF_STR];
3681 if (view->lines > 0)
3684 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3686 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3689 if (req_info[i].request == REQ_NONE)
3692 if (!req_info[i].request) {
3693 add_line_text(view, "", LINE_DEFAULT);
3694 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3698 key = get_key(req_info[i].request);
3700 key = "(no key defined)";
3702 for (bufpos = 0; bufpos <= req_info[i].namelen; bufpos++) {
3703 buf[bufpos] = tolower(req_info[i].name[bufpos]);
3704 if (buf[bufpos] == '_')
3708 add_line_format(view, LINE_DEFAULT, " %-25s %-20s %s",
3709 key, buf, req_info[i].help);
3713 add_line_text(view, "", LINE_DEFAULT);
3714 add_line_text(view, "External commands:", LINE_DEFAULT);
3717 for (i = 0; i < run_requests; i++) {
3718 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3725 key = get_key_name(req->key);
3727 key = "(no key defined)";
3729 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3730 if (!string_format_from(buf, &bufpos, "%s%s",
3731 argc ? " " : "", req->argv[argc]))
3734 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3735 keymap_table[req->keymap].name, key, buf);
3741 static struct view_ops help_ops = {
3757 struct tree_stack_entry {
3758 struct tree_stack_entry *prev; /* Entry below this in the stack */
3759 unsigned long lineno; /* Line number to restore */
3760 char *name; /* Position of name in opt_path */
3763 /* The top of the path stack. */
3764 static struct tree_stack_entry *tree_stack = NULL;
3765 unsigned long tree_lineno = 0;
3768 pop_tree_stack_entry(void)
3770 struct tree_stack_entry *entry = tree_stack;
3772 tree_lineno = entry->lineno;
3774 tree_stack = entry->prev;
3779 push_tree_stack_entry(const char *name, unsigned long lineno)
3781 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3782 size_t pathlen = strlen(opt_path);
3787 entry->prev = tree_stack;
3788 entry->name = opt_path + pathlen;
3791 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3792 pop_tree_stack_entry();
3796 /* Move the current line to the first tree entry. */
3798 entry->lineno = lineno;
3801 /* Parse output from git-ls-tree(1):
3803 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3806 #define SIZEOF_TREE_ATTR \
3807 STRING_SIZE("100644 blob f931e1d229c3e185caad4449bf5b66ed72462657\t")
3809 #define SIZEOF_TREE_MODE \
3810 STRING_SIZE("100644 ")
3812 #define TREE_ID_OFFSET \
3813 STRING_SIZE("100644 blob ")
3816 char id[SIZEOF_REV];
3818 struct tm time; /* Date from the author ident. */
3819 char author[75]; /* Author of the commit. */
3824 tree_path(struct line *line)
3826 return ((struct tree_entry *) line->data)->name;
3831 tree_compare_entry(struct line *line1, struct line *line2)
3833 if (line1->type != line2->type)
3834 return line1->type == LINE_TREE_DIR ? -1 : 1;
3835 return strcmp(tree_path(line1), tree_path(line2));
3838 static struct line *
3839 tree_entry(struct view *view, enum line_type type, const char *path,
3840 const char *mode, const char *id)
3842 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3843 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3845 if (!entry || !line) {
3850 strncpy(entry->name, path, strlen(path));
3852 entry->mode = strtoul(mode, NULL, 8);
3854 string_copy_rev(entry->id, id);
3860 tree_read_date(struct view *view, char *text, bool *read_date)
3862 static char author_name[SIZEOF_STR];
3863 static struct tm author_time;
3865 if (!text && *read_date) {
3870 char *path = *opt_path ? opt_path : ".";
3871 /* Find next entry to process */
3872 const char *log_file[] = {
3873 "git", "log", "--no-color", "--pretty=raw",
3874 "--cc", "--raw", view->id, "--", path, NULL
3879 tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL);
3880 report("Tree is empty");
3884 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3885 report("Failed to load tree data");
3889 done_io(view->pipe);
3894 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3895 parse_author_line(text + STRING_SIZE("author "),
3896 author_name, sizeof(author_name), &author_time);
3898 } else if (*text == ':') {
3900 size_t annotated = 1;
3903 pos = strchr(text, '\t');
3907 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3908 text += strlen(opt_prefix);
3909 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3910 text += strlen(opt_path);
3911 pos = strchr(text, '/');
3915 for (i = 1; i < view->lines; i++) {
3916 struct line *line = &view->line[i];
3917 struct tree_entry *entry = line->data;
3919 annotated += !!*entry->author;
3920 if (*entry->author || strcmp(entry->name, text))
3923 string_copy(entry->author, author_name);
3924 memcpy(&entry->time, &author_time, sizeof(entry->time));
3929 if (annotated == view->lines)
3930 kill_io(view->pipe);
3936 tree_read(struct view *view, char *text)
3938 static bool read_date = FALSE;
3939 struct tree_entry *data;
3940 struct line *entry, *line;
3941 enum line_type type;
3942 size_t textlen = text ? strlen(text) : 0;
3943 char *path = text + SIZEOF_TREE_ATTR;
3945 if (read_date || !text)
3946 return tree_read_date(view, text, &read_date);
3948 if (textlen <= SIZEOF_TREE_ATTR)
3950 if (view->lines == 0 &&
3951 !tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL))
3954 /* Strip the path part ... */
3956 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3957 size_t striplen = strlen(opt_path);
3959 if (pathlen > striplen)
3960 memmove(path, path + striplen,
3961 pathlen - striplen + 1);
3963 /* Insert "link" to parent directory. */
3964 if (view->lines == 1 &&
3965 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3969 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
3970 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3975 /* Skip "Directory ..." and ".." line. */
3976 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3977 if (tree_compare_entry(line, entry) <= 0)
3980 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3984 for (; line <= entry; line++)
3985 line->dirty = line->cleareol = 1;
3989 if (tree_lineno > view->lineno) {
3990 view->lineno = tree_lineno;
3998 tree_draw(struct view *view, struct line *line, unsigned int lineno)
4000 struct tree_entry *entry = line->data;
4002 if (line->type == LINE_TREE_HEAD) {
4003 if (draw_text(view, line->type, "Directory path /", TRUE))
4006 if (draw_mode(view, entry->mode))
4009 if (opt_author && draw_author(view, entry->author))
4012 if (opt_date && draw_date(view, *entry->author ? &entry->time : NULL))
4015 if (draw_text(view, line->type, entry->name, TRUE))
4023 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
4024 int fd = mkstemp(file);
4027 report("Failed to create temporary file");
4028 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
4029 report("Failed to save blob data to file");
4031 open_editor(FALSE, file);
4037 tree_request(struct view *view, enum request request, struct line *line)
4039 enum open_flags flags;
4042 case REQ_VIEW_BLAME:
4043 if (line->type != LINE_TREE_FILE) {
4044 report("Blame only supported for files");
4048 string_copy(opt_ref, view->vid);
4052 if (line->type != LINE_TREE_FILE) {
4053 report("Edit only supported for files");
4054 } else if (!is_head_commit(view->vid)) {
4057 open_editor(TRUE, opt_file);
4063 /* quit view if at top of tree */
4064 return REQ_VIEW_CLOSE;
4067 line = &view->line[1];
4077 /* Cleanup the stack if the tree view is at a different tree. */
4078 while (!*opt_path && tree_stack)
4079 pop_tree_stack_entry();
4081 switch (line->type) {
4083 /* Depending on whether it is a subdirectory or parent link
4084 * mangle the path buffer. */
4085 if (line == &view->line[1] && *opt_path) {
4086 pop_tree_stack_entry();
4089 const char *basename = tree_path(line);
4091 push_tree_stack_entry(basename, view->lineno);
4094 /* Trees and subtrees share the same ID, so they are not not
4095 * unique like blobs. */
4096 flags = OPEN_RELOAD;
4097 request = REQ_VIEW_TREE;
4100 case LINE_TREE_FILE:
4101 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4102 request = REQ_VIEW_BLOB;
4109 open_view(view, request, flags);
4110 if (request == REQ_VIEW_TREE)
4111 view->lineno = tree_lineno;
4117 tree_select(struct view *view, struct line *line)
4119 struct tree_entry *entry = line->data;
4121 if (line->type == LINE_TREE_FILE) {
4122 string_copy_rev(ref_blob, entry->id);
4123 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4125 } else if (line->type != LINE_TREE_DIR) {
4129 string_copy_rev(view->ref, entry->id);
4132 static const char *tree_argv[SIZEOF_ARG] = {
4133 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4136 static struct view_ops tree_ops = {
4148 blob_read(struct view *view, char *line)
4152 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4156 blob_request(struct view *view, enum request request, struct line *line)
4163 return pager_request(view, request, line);
4167 static const char *blob_argv[SIZEOF_ARG] = {
4168 "git", "cat-file", "blob", "%(blob)", NULL
4171 static struct view_ops blob_ops = {
4185 * Loading the blame view is a two phase job:
4187 * 1. File content is read either using opt_file from the
4188 * filesystem or using git-cat-file.
4189 * 2. Then blame information is incrementally added by
4190 * reading output from git-blame.
4193 static const char *blame_head_argv[] = {
4194 "git", "blame", "--incremental", "--", "%(file)", NULL
4197 static const char *blame_ref_argv[] = {
4198 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4201 static const char *blame_cat_file_argv[] = {
4202 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4205 struct blame_commit {
4206 char id[SIZEOF_REV]; /* SHA1 ID. */
4207 char title[128]; /* First line of the commit message. */
4208 char author[75]; /* Author of the commit. */
4209 struct tm time; /* Date from the author ident. */
4210 char filename[128]; /* Name of file. */
4211 bool has_previous; /* Was a "previous" line detected. */
4215 struct blame_commit *commit;
4216 unsigned long lineno;
4221 blame_open(struct view *view)
4223 if (*opt_ref || !io_open(&view->io, opt_file)) {
4224 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4228 setup_update(view, opt_file);
4229 string_format(view->ref, "%s ...", opt_file);
4234 static struct blame_commit *
4235 get_blame_commit(struct view *view, const char *id)
4239 for (i = 0; i < view->lines; i++) {
4240 struct blame *blame = view->line[i].data;
4245 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4246 return blame->commit;
4250 struct blame_commit *commit = calloc(1, sizeof(*commit));
4253 string_ncopy(commit->id, id, SIZEOF_REV);
4259 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4261 const char *pos = *posref;
4264 pos = strchr(pos + 1, ' ');
4265 if (!pos || !isdigit(pos[1]))
4267 *number = atoi(pos + 1);
4268 if (*number < min || *number > max)
4275 static struct blame_commit *
4276 parse_blame_commit(struct view *view, const char *text, int *blamed)
4278 struct blame_commit *commit;
4279 struct blame *blame;
4280 const char *pos = text + SIZEOF_REV - 2;
4281 size_t orig_lineno = 0;
4285 if (strlen(text) <= SIZEOF_REV || pos[1] != ' ')
4288 if (!parse_number(&pos, &orig_lineno, 1, 9999999) ||
4289 !parse_number(&pos, &lineno, 1, view->lines) ||
4290 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4293 commit = get_blame_commit(view, text);
4299 struct line *line = &view->line[lineno + group - 1];
4302 blame->commit = commit;
4303 blame->lineno = orig_lineno + group - 1;
4311 blame_read_file(struct view *view, const char *line, bool *read_file)
4314 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4317 if (view->lines == 0 && !view->parent)
4318 die("No blame exist for %s", view->vid);
4320 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4321 report("Failed to load blame data");
4325 done_io(view->pipe);
4331 size_t linelen = strlen(line);
4332 struct blame *blame = malloc(sizeof(*blame) + linelen);
4337 blame->commit = NULL;
4338 strncpy(blame->text, line, linelen);
4339 blame->text[linelen] = 0;
4340 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4345 match_blame_header(const char *name, char **line)
4347 size_t namelen = strlen(name);
4348 bool matched = !strncmp(name, *line, namelen);
4357 blame_read(struct view *view, char *line)
4359 static struct blame_commit *commit = NULL;
4360 static int blamed = 0;
4361 static time_t author_time;
4362 static bool read_file = TRUE;
4365 return blame_read_file(view, line, &read_file);
4372 string_format(view->ref, "%s", view->vid);
4373 if (view_is_displayed(view)) {
4374 update_view_title(view);
4375 redraw_view_from(view, 0);
4381 commit = parse_blame_commit(view, line, &blamed);
4382 string_format(view->ref, "%s %2d%%", view->vid,
4383 view->lines ? blamed * 100 / view->lines : 0);
4385 } else if (match_blame_header("author ", &line)) {
4386 string_ncopy(commit->author, line, strlen(line));
4388 } else if (match_blame_header("author-time ", &line)) {
4389 author_time = (time_t) atol(line);
4391 } else if (match_blame_header("author-tz ", &line)) {
4392 parse_timezone(&author_time, line);
4393 gmtime_r(&author_time, &commit->time);
4395 } else if (match_blame_header("summary ", &line)) {
4396 string_ncopy(commit->title, line, strlen(line));
4398 } else if (match_blame_header("previous ", &line)) {
4399 commit->has_previous = TRUE;
4401 } else if (match_blame_header("filename ", &line)) {
4402 string_ncopy(commit->filename, line, strlen(line));
4410 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4412 struct blame *blame = line->data;
4413 struct tm *time = NULL;
4414 const char *id = NULL, *author = NULL;
4415 char text[SIZEOF_STR];
4417 if (blame->commit && *blame->commit->filename) {
4418 id = blame->commit->id;
4419 author = blame->commit->author;
4420 time = &blame->commit->time;
4423 if (opt_date && draw_date(view, time))
4426 if (opt_author && draw_author(view, author))
4429 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4432 if (draw_lineno(view, lineno))
4435 string_expand(text, sizeof(text), blame->text, opt_tab_size);
4436 draw_text(view, LINE_DEFAULT, text, TRUE);
4441 check_blame_commit(struct blame *blame, bool check_null_id)
4444 report("Commit data not loaded yet");
4445 else if (check_null_id && !strcmp(blame->commit->id, NULL_ID))
4446 report("No commit exist for the selected line");
4453 setup_blame_parent_line(struct view *view, struct blame *blame)
4455 const char *diff_tree_argv[] = {
4456 "git", "diff-tree", "-U0", blame->commit->id,
4457 "--", blame->commit->filename, NULL
4460 int parent_lineno = -1;
4461 int blamed_lineno = -1;
4464 if (!run_io(&io, diff_tree_argv, NULL, IO_RD))
4467 while ((line = io_get(&io, '\n', TRUE))) {
4469 char *pos = strchr(line, '+');
4471 parent_lineno = atoi(line + 4);
4473 blamed_lineno = atoi(pos + 1);
4475 } else if (*line == '+' && parent_lineno != -1) {
4476 if (blame->lineno == blamed_lineno - 1 &&
4477 !strcmp(blame->text, line + 1)) {
4478 view->lineno = parent_lineno ? parent_lineno - 1 : 0;
4489 blame_request(struct view *view, enum request request, struct line *line)
4491 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4492 struct blame *blame = line->data;
4495 case REQ_VIEW_BLAME:
4496 if (check_blame_commit(blame, TRUE)) {
4497 string_copy(opt_ref, blame->commit->id);
4498 string_copy(opt_file, blame->commit->filename);
4500 view->lineno = blame->lineno;
4501 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4506 if (check_blame_commit(blame, TRUE) &&
4507 select_commit_parent(blame->commit->id, opt_ref,
4508 blame->commit->filename)) {
4509 string_copy(opt_file, blame->commit->filename);
4510 setup_blame_parent_line(view, blame);
4511 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4516 if (!check_blame_commit(blame, FALSE))
4519 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4520 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4523 if (!strcmp(blame->commit->id, NULL_ID)) {
4524 struct view *diff = VIEW(REQ_VIEW_DIFF);
4525 const char *diff_index_argv[] = {
4526 "git", "diff-index", "--root", "--patch-with-stat",
4527 "-C", "-M", "HEAD", "--", view->vid, NULL
4530 if (!blame->commit->has_previous) {
4531 diff_index_argv[1] = "diff";
4532 diff_index_argv[2] = "--no-color";
4533 diff_index_argv[6] = "--";
4534 diff_index_argv[7] = "/dev/null";
4537 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4538 report("Failed to allocate diff command");
4541 flags |= OPEN_PREPARED;
4544 open_view(view, REQ_VIEW_DIFF, flags);
4545 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4546 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4557 blame_grep(struct view *view, struct line *line)
4559 struct blame *blame = line->data;
4560 struct blame_commit *commit = blame->commit;
4563 #define MATCH(text, on) \
4564 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4567 char buf[DATE_COLS + 1];
4569 if (MATCH(commit->title, 1) ||
4570 MATCH(commit->author, opt_author) ||
4571 MATCH(commit->id, opt_date))
4574 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4579 return MATCH(blame->text, 1);
4585 blame_select(struct view *view, struct line *line)
4587 struct blame *blame = line->data;
4588 struct blame_commit *commit = blame->commit;
4593 if (!strcmp(commit->id, NULL_ID))
4594 string_ncopy(ref_commit, "HEAD", 4);
4596 string_copy_rev(ref_commit, commit->id);
4599 static struct view_ops blame_ops = {
4618 char rev[SIZEOF_REV];
4619 char name[SIZEOF_STR];
4623 char rev[SIZEOF_REV];
4624 char name[SIZEOF_STR];
4628 static char status_onbranch[SIZEOF_STR];
4629 static struct status stage_status;
4630 static enum line_type stage_line_type;
4631 static size_t stage_chunks;
4632 static int *stage_chunk;
4634 /* This should work even for the "On branch" line. */
4636 status_has_none(struct view *view, struct line *line)
4638 return line < view->line + view->lines && !line[1].data;
4641 /* Get fields from the diff line:
4642 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4645 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4647 const char *old_mode = buf + 1;
4648 const char *new_mode = buf + 8;
4649 const char *old_rev = buf + 15;
4650 const char *new_rev = buf + 56;
4651 const char *status = buf + 97;
4654 old_mode[-1] != ':' ||
4655 new_mode[-1] != ' ' ||
4656 old_rev[-1] != ' ' ||
4657 new_rev[-1] != ' ' ||
4661 file->status = *status;
4663 string_copy_rev(file->old.rev, old_rev);
4664 string_copy_rev(file->new.rev, new_rev);
4666 file->old.mode = strtoul(old_mode, NULL, 8);
4667 file->new.mode = strtoul(new_mode, NULL, 8);
4669 file->old.name[0] = file->new.name[0] = 0;
4675 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4677 struct status *unmerged = NULL;
4681 if (!run_io(&io, argv, NULL, IO_RD))
4684 add_line_data(view, NULL, type);
4686 while ((buf = io_get(&io, 0, TRUE))) {
4687 struct status *file = unmerged;
4690 file = calloc(1, sizeof(*file));
4691 if (!file || !add_line_data(view, file, type))
4695 /* Parse diff info part. */
4697 file->status = status;
4699 string_copy(file->old.rev, NULL_ID);
4701 } else if (!file->status || file == unmerged) {
4702 if (!status_get_diff(file, buf, strlen(buf)))
4705 buf = io_get(&io, 0, TRUE);
4709 /* Collapse all modified entries that follow an
4710 * associated unmerged entry. */
4711 if (unmerged == file) {
4712 unmerged->status = 'U';
4714 } else if (file->status == 'U') {
4719 /* Grab the old name for rename/copy. */
4720 if (!*file->old.name &&
4721 (file->status == 'R' || file->status == 'C')) {
4722 string_ncopy(file->old.name, buf, strlen(buf));
4724 buf = io_get(&io, 0, TRUE);
4729 /* git-ls-files just delivers a NUL separated list of
4730 * file names similar to the second half of the
4731 * git-diff-* output. */
4732 string_ncopy(file->new.name, buf, strlen(buf));
4733 if (!*file->old.name)
4734 string_copy(file->old.name, file->new.name);
4738 if (io_error(&io)) {
4744 if (!view->line[view->lines - 1].data)
4745 add_line_data(view, NULL, LINE_STAT_NONE);
4751 /* Don't show unmerged entries in the staged section. */
4752 static const char *status_diff_index_argv[] = {
4753 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4754 "--cached", "-M", "HEAD", NULL
4757 static const char *status_diff_files_argv[] = {
4758 "git", "diff-files", "-z", NULL
4761 static const char *status_list_other_argv[] = {
4762 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4765 static const char *status_list_no_head_argv[] = {
4766 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4769 static const char *update_index_argv[] = {
4770 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4773 /* Restore the previous line number to stay in the context or select a
4774 * line with something that can be updated. */
4776 status_restore(struct view *view)
4778 if (view->p_lineno >= view->lines)
4779 view->p_lineno = view->lines - 1;
4780 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4782 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4785 /* If the above fails, always skip the "On branch" line. */
4786 if (view->p_lineno < view->lines)
4787 view->lineno = view->p_lineno;
4791 if (view->lineno < view->offset)
4792 view->offset = view->lineno;
4793 else if (view->offset + view->height <= view->lineno)
4794 view->offset = view->lineno - view->height + 1;
4796 view->p_restore = FALSE;
4800 status_update_onbranch(void)
4802 static const char *paths[][2] = {
4803 { "rebase-apply/rebasing", "Rebasing" },
4804 { "rebase-apply/applying", "Applying mailbox" },
4805 { "rebase-apply/", "Rebasing mailbox" },
4806 { "rebase-merge/interactive", "Interactive rebase" },
4807 { "rebase-merge/", "Rebase merge" },
4808 { "MERGE_HEAD", "Merging" },
4809 { "BISECT_LOG", "Bisecting" },
4810 { "HEAD", "On branch" },
4812 char buf[SIZEOF_STR];
4816 if (is_initial_commit()) {
4817 string_copy(status_onbranch, "Initial commit");
4821 for (i = 0; i < ARRAY_SIZE(paths); i++) {
4822 char *head = opt_head;
4824 if (!string_format(buf, "%s/%s", opt_git_dir, paths[i][0]) ||
4825 lstat(buf, &stat) < 0)
4831 if (string_format(buf, "%s/rebase-merge/head-name", opt_git_dir) &&
4832 io_open(&io, buf) &&
4833 io_read_buf(&io, buf, sizeof(buf))) {
4834 head = chomp_string(buf);
4835 if (!prefixcmp(head, "refs/heads/"))
4836 head += STRING_SIZE("refs/heads/");
4840 if (!string_format(status_onbranch, "%s %s", paths[i][1], head))
4841 string_copy(status_onbranch, opt_head);
4845 string_copy(status_onbranch, "Not currently on any branch");
4848 /* First parse staged info using git-diff-index(1), then parse unstaged
4849 * info using git-diff-files(1), and finally untracked files using
4850 * git-ls-files(1). */
4852 status_open(struct view *view)
4856 add_line_data(view, NULL, LINE_STAT_HEAD);
4857 status_update_onbranch();
4859 run_io_bg(update_index_argv);
4861 if (is_initial_commit()) {
4862 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4864 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4868 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4869 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4872 /* Restore the exact position or use the specialized restore
4874 if (!view->p_restore)
4875 status_restore(view);
4880 status_draw(struct view *view, struct line *line, unsigned int lineno)
4882 struct status *status = line->data;
4883 enum line_type type;
4887 switch (line->type) {
4888 case LINE_STAT_STAGED:
4889 type = LINE_STAT_SECTION;
4890 text = "Changes to be committed:";
4893 case LINE_STAT_UNSTAGED:
4894 type = LINE_STAT_SECTION;
4895 text = "Changed but not updated:";
4898 case LINE_STAT_UNTRACKED:
4899 type = LINE_STAT_SECTION;
4900 text = "Untracked files:";
4903 case LINE_STAT_NONE:
4904 type = LINE_DEFAULT;
4905 text = " (no files)";
4908 case LINE_STAT_HEAD:
4909 type = LINE_STAT_HEAD;
4910 text = status_onbranch;
4917 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4919 buf[0] = status->status;
4920 if (draw_text(view, line->type, buf, TRUE))
4922 type = LINE_DEFAULT;
4923 text = status->new.name;
4926 draw_text(view, type, text, TRUE);
4931 status_load_error(struct view *view, struct view *stage, const char *path)
4933 if (displayed_views() == 2 || display[current_view] != view)
4934 maximize_view(view);
4935 report("Failed to load '%s': %s", path, io_strerror(&stage->io));
4940 status_enter(struct view *view, struct line *line)
4942 struct status *status = line->data;
4943 const char *oldpath = status ? status->old.name : NULL;
4944 /* Diffs for unmerged entries are empty when passing the new
4945 * path, so leave it empty. */
4946 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4948 enum open_flags split;
4949 struct view *stage = VIEW(REQ_VIEW_STAGE);
4951 if (line->type == LINE_STAT_NONE ||
4952 (!status && line[1].type == LINE_STAT_NONE)) {
4953 report("No file to diff");
4957 switch (line->type) {
4958 case LINE_STAT_STAGED:
4959 if (is_initial_commit()) {
4960 const char *no_head_diff_argv[] = {
4961 "git", "diff", "--no-color", "--patch-with-stat",
4962 "--", "/dev/null", newpath, NULL
4965 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4966 return status_load_error(view, stage, newpath);
4968 const char *index_show_argv[] = {
4969 "git", "diff-index", "--root", "--patch-with-stat",
4970 "-C", "-M", "--cached", "HEAD", "--",
4971 oldpath, newpath, NULL
4974 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4975 return status_load_error(view, stage, newpath);
4979 info = "Staged changes to %s";
4981 info = "Staged changes";
4984 case LINE_STAT_UNSTAGED:
4986 const char *files_show_argv[] = {
4987 "git", "diff-files", "--root", "--patch-with-stat",
4988 "-C", "-M", "--", oldpath, newpath, NULL
4991 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4992 return status_load_error(view, stage, newpath);
4994 info = "Unstaged changes to %s";
4996 info = "Unstaged changes";
4999 case LINE_STAT_UNTRACKED:
5001 report("No file to show");
5005 if (!suffixcmp(status->new.name, -1, "/")) {
5006 report("Cannot display a directory");
5010 if (!prepare_update_file(stage, newpath))
5011 return status_load_error(view, stage, newpath);
5012 info = "Untracked file %s";
5015 case LINE_STAT_HEAD:
5019 die("line type %d not handled in switch", line->type);
5022 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
5023 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
5024 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
5026 stage_status = *status;
5028 memset(&stage_status, 0, sizeof(stage_status));
5031 stage_line_type = line->type;
5033 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
5040 status_exists(struct status *status, enum line_type type)
5042 struct view *view = VIEW(REQ_VIEW_STATUS);
5043 unsigned long lineno;
5045 for (lineno = 0; lineno < view->lines; lineno++) {
5046 struct line *line = &view->line[lineno];
5047 struct status *pos = line->data;
5049 if (line->type != type)
5051 if (!pos && (!status || !status->status) && line[1].data) {
5052 select_view_line(view, lineno);
5055 if (pos && !strcmp(status->new.name, pos->new.name)) {
5056 select_view_line(view, lineno);
5066 status_update_prepare(struct io *io, enum line_type type)
5068 const char *staged_argv[] = {
5069 "git", "update-index", "-z", "--index-info", NULL
5071 const char *others_argv[] = {
5072 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
5076 case LINE_STAT_STAGED:
5077 return run_io(io, staged_argv, opt_cdup, IO_WR);
5079 case LINE_STAT_UNSTAGED:
5080 return run_io(io, others_argv, opt_cdup, IO_WR);
5082 case LINE_STAT_UNTRACKED:
5083 return run_io(io, others_argv, NULL, IO_WR);
5086 die("line type %d not handled in switch", type);
5092 status_update_write(struct io *io, struct status *status, enum line_type type)
5094 char buf[SIZEOF_STR];
5098 case LINE_STAT_STAGED:
5099 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
5102 status->old.name, 0))
5106 case LINE_STAT_UNSTAGED:
5107 case LINE_STAT_UNTRACKED:
5108 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
5113 die("line type %d not handled in switch", type);
5116 return io_write(io, buf, bufsize);
5120 status_update_file(struct status *status, enum line_type type)
5125 if (!status_update_prepare(&io, type))
5128 result = status_update_write(&io, status, type);
5129 return done_io(&io) && result;
5133 status_update_files(struct view *view, struct line *line)
5135 char buf[sizeof(view->ref)];
5138 struct line *pos = view->line + view->lines;
5142 if (!status_update_prepare(&io, line->type))
5145 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5148 string_copy(buf, view->ref);
5149 for (file = 0, done = 5; result && file < files; line++, file++) {
5150 int almost_done = file * 100 / files;
5152 if (almost_done > done) {
5154 string_format(view->ref, "updating file %u of %u (%d%% done)",
5156 update_view_title(view);
5159 result = status_update_write(&io, line->data, line->type);
5161 string_copy(view->ref, buf);
5163 return done_io(&io) && result;
5167 status_update(struct view *view)
5169 struct line *line = &view->line[view->lineno];
5171 assert(view->lines);
5174 /* This should work even for the "On branch" line. */
5175 if (line < view->line + view->lines && !line[1].data) {
5176 report("Nothing to update");
5180 if (!status_update_files(view, line + 1)) {
5181 report("Failed to update file status");
5185 } else if (!status_update_file(line->data, line->type)) {
5186 report("Failed to update file status");
5194 status_revert(struct status *status, enum line_type type, bool has_none)
5196 if (!status || type != LINE_STAT_UNSTAGED) {
5197 if (type == LINE_STAT_STAGED) {
5198 report("Cannot revert changes to staged files");
5199 } else if (type == LINE_STAT_UNTRACKED) {
5200 report("Cannot revert changes to untracked files");
5201 } else if (has_none) {
5202 report("Nothing to revert");
5204 report("Cannot revert changes to multiple files");
5209 char mode[10] = "100644";
5210 const char *reset_argv[] = {
5211 "git", "update-index", "--cacheinfo", mode,
5212 status->old.rev, status->old.name, NULL
5214 const char *checkout_argv[] = {
5215 "git", "checkout", "--", status->old.name, NULL
5218 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5220 string_format(mode, "%o", status->old.mode);
5221 return (status->status != 'U' || run_io_fg(reset_argv, opt_cdup)) &&
5222 run_io_fg(checkout_argv, opt_cdup);
5227 status_request(struct view *view, enum request request, struct line *line)
5229 struct status *status = line->data;
5232 case REQ_STATUS_UPDATE:
5233 if (!status_update(view))
5237 case REQ_STATUS_REVERT:
5238 if (!status_revert(status, line->type, status_has_none(view, line)))
5242 case REQ_STATUS_MERGE:
5243 if (!status || status->status != 'U') {
5244 report("Merging only possible for files with unmerged status ('U').");
5247 open_mergetool(status->new.name);
5253 if (status->status == 'D') {
5254 report("File has been deleted.");
5258 open_editor(status->status != '?', status->new.name);
5261 case REQ_VIEW_BLAME:
5263 string_copy(opt_file, status->new.name);
5269 /* After returning the status view has been split to
5270 * show the stage view. No further reloading is
5272 return status_enter(view, line);
5275 /* Simply reload the view. */
5282 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5288 status_select(struct view *view, struct line *line)
5290 struct status *status = line->data;
5291 char file[SIZEOF_STR] = "all files";
5295 if (status && !string_format(file, "'%s'", status->new.name))
5298 if (!status && line[1].type == LINE_STAT_NONE)
5301 switch (line->type) {
5302 case LINE_STAT_STAGED:
5303 text = "Press %s to unstage %s for commit";
5306 case LINE_STAT_UNSTAGED:
5307 text = "Press %s to stage %s for commit";
5310 case LINE_STAT_UNTRACKED:
5311 text = "Press %s to stage %s for addition";
5314 case LINE_STAT_HEAD:
5315 case LINE_STAT_NONE:
5316 text = "Nothing to update";
5320 die("line type %d not handled in switch", line->type);
5323 if (status && status->status == 'U') {
5324 text = "Press %s to resolve conflict in %s";
5325 key = get_key(REQ_STATUS_MERGE);
5328 key = get_key(REQ_STATUS_UPDATE);
5331 string_format(view->ref, text, key, file);
5335 status_grep(struct view *view, struct line *line)
5337 struct status *status = line->data;
5338 enum { S_STATUS, S_NAME, S_END } state;
5345 for (state = S_STATUS; state < S_END; state++) {
5349 case S_NAME: text = status->new.name; break;
5351 buf[0] = status->status;
5359 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5366 static struct view_ops status_ops = {
5379 stage_diff_write(struct io *io, struct line *line, struct line *end)
5381 while (line < end) {
5382 if (!io_write(io, line->data, strlen(line->data)) ||
5383 !io_write(io, "\n", 1))
5386 if (line->type == LINE_DIFF_CHUNK ||
5387 line->type == LINE_DIFF_HEADER)
5394 static struct line *
5395 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5397 for (; view->line < line; line--)
5398 if (line->type == type)
5405 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5407 const char *apply_argv[SIZEOF_ARG] = {
5408 "git", "apply", "--whitespace=nowarn", NULL
5410 struct line *diff_hdr;
5414 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5419 apply_argv[argc++] = "--cached";
5420 if (revert || stage_line_type == LINE_STAT_STAGED)
5421 apply_argv[argc++] = "-R";
5422 apply_argv[argc++] = "-";
5423 apply_argv[argc++] = NULL;
5424 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5427 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5428 !stage_diff_write(&io, chunk, view->line + view->lines))
5432 run_io_bg(update_index_argv);
5434 return chunk ? TRUE : FALSE;
5438 stage_update(struct view *view, struct line *line)
5440 struct line *chunk = NULL;
5442 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5443 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5446 if (!stage_apply_chunk(view, chunk, FALSE)) {
5447 report("Failed to apply chunk");
5451 } else if (!stage_status.status) {
5452 view = VIEW(REQ_VIEW_STATUS);
5454 for (line = view->line; line < view->line + view->lines; line++)
5455 if (line->type == stage_line_type)
5458 if (!status_update_files(view, line + 1)) {
5459 report("Failed to update files");
5463 } else if (!status_update_file(&stage_status, stage_line_type)) {
5464 report("Failed to update file");
5472 stage_revert(struct view *view, struct line *line)
5474 struct line *chunk = NULL;
5476 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5477 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5480 if (!prompt_yesno("Are you sure you want to revert changes?"))
5483 if (!stage_apply_chunk(view, chunk, TRUE)) {
5484 report("Failed to revert chunk");
5490 return status_revert(stage_status.status ? &stage_status : NULL,
5491 stage_line_type, FALSE);
5497 stage_next(struct view *view, struct line *line)
5501 if (!stage_chunks) {
5502 static size_t alloc = 0;
5505 for (line = view->line; line < view->line + view->lines; line++) {
5506 if (line->type != LINE_DIFF_CHUNK)
5509 tmp = realloc_items(stage_chunk, &alloc,
5510 stage_chunks, sizeof(*tmp));
5512 report("Allocation failure");
5517 stage_chunk[stage_chunks++] = line - view->line;
5521 for (i = 0; i < stage_chunks; i++) {
5522 if (stage_chunk[i] > view->lineno) {
5523 do_scroll_view(view, stage_chunk[i] - view->lineno);
5524 report("Chunk %d of %d", i + 1, stage_chunks);
5529 report("No next chunk found");
5533 stage_request(struct view *view, enum request request, struct line *line)
5536 case REQ_STATUS_UPDATE:
5537 if (!stage_update(view, line))
5541 case REQ_STATUS_REVERT:
5542 if (!stage_revert(view, line))
5546 case REQ_STAGE_NEXT:
5547 if (stage_line_type == LINE_STAT_UNTRACKED) {
5548 report("File is untracked; press %s to add",
5549 get_key(REQ_STATUS_UPDATE));
5552 stage_next(view, line);
5556 if (!stage_status.new.name[0])
5558 if (stage_status.status == 'D') {
5559 report("File has been deleted.");
5563 open_editor(stage_status.status != '?', stage_status.new.name);
5567 /* Reload everything ... */
5570 case REQ_VIEW_BLAME:
5571 if (stage_status.new.name[0]) {
5572 string_copy(opt_file, stage_status.new.name);
5578 return pager_request(view, request, line);
5584 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5585 open_view(view, REQ_VIEW_STATUS, OPEN_REFRESH);
5587 /* Check whether the staged entry still exists, and close the
5588 * stage view if it doesn't. */
5589 if (!status_exists(&stage_status, stage_line_type)) {
5590 status_restore(VIEW(REQ_VIEW_STATUS));
5591 return REQ_VIEW_CLOSE;
5594 if (stage_line_type == LINE_STAT_UNTRACKED) {
5595 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5596 report("Cannot display a directory");
5600 if (!prepare_update_file(view, stage_status.new.name)) {
5601 report("Failed to open file: %s", strerror(errno));
5605 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5610 static struct view_ops stage_ops = {
5627 char id[SIZEOF_REV]; /* SHA1 ID. */
5628 char title[128]; /* First line of the commit message. */
5629 char author[75]; /* Author of the commit. */
5630 struct tm time; /* Date from the author ident. */
5631 struct ref **refs; /* Repository references. */
5632 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5633 size_t graph_size; /* The width of the graph array. */
5634 bool has_parents; /* Rewritten --parents seen. */
5637 /* Size of rev graph with no "padding" columns */
5638 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5641 struct rev_graph *prev, *next, *parents;
5642 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5644 struct commit *commit;
5646 unsigned int boundary:1;
5649 /* Parents of the commit being visualized. */
5650 static struct rev_graph graph_parents[4];
5652 /* The current stack of revisions on the graph. */
5653 static struct rev_graph graph_stacks[4] = {
5654 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5655 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5656 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5657 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5661 graph_parent_is_merge(struct rev_graph *graph)
5663 return graph->parents->size > 1;
5667 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5669 struct commit *commit = graph->commit;
5671 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5672 commit->graph[commit->graph_size++] = symbol;
5676 clear_rev_graph(struct rev_graph *graph)
5678 graph->boundary = 0;
5679 graph->size = graph->pos = 0;
5680 graph->commit = NULL;
5681 memset(graph->parents, 0, sizeof(*graph->parents));
5685 done_rev_graph(struct rev_graph *graph)
5687 if (graph_parent_is_merge(graph) &&
5688 graph->pos < graph->size - 1 &&
5689 graph->next->size == graph->size + graph->parents->size - 1) {
5690 size_t i = graph->pos + graph->parents->size - 1;
5692 graph->commit->graph_size = i * 2;
5693 while (i < graph->next->size - 1) {
5694 append_to_rev_graph(graph, ' ');
5695 append_to_rev_graph(graph, '\\');
5700 clear_rev_graph(graph);
5704 push_rev_graph(struct rev_graph *graph, const char *parent)
5708 /* "Collapse" duplicate parents lines.
5710 * FIXME: This needs to also update update the drawn graph but
5711 * for now it just serves as a method for pruning graph lines. */
5712 for (i = 0; i < graph->size; i++)
5713 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5716 if (graph->size < SIZEOF_REVITEMS) {
5717 string_copy_rev(graph->rev[graph->size++], parent);
5722 get_rev_graph_symbol(struct rev_graph *graph)
5726 if (graph->boundary)
5727 symbol = REVGRAPH_BOUND;
5728 else if (graph->parents->size == 0)
5729 symbol = REVGRAPH_INIT;
5730 else if (graph_parent_is_merge(graph))
5731 symbol = REVGRAPH_MERGE;
5732 else if (graph->pos >= graph->size)
5733 symbol = REVGRAPH_BRANCH;
5735 symbol = REVGRAPH_COMMIT;
5741 draw_rev_graph(struct rev_graph *graph)
5744 chtype separator, line;
5746 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5747 static struct rev_filler fillers[] = {
5753 chtype symbol = get_rev_graph_symbol(graph);
5754 struct rev_filler *filler;
5757 if (opt_line_graphics)
5758 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5760 filler = &fillers[DEFAULT];
5762 for (i = 0; i < graph->pos; i++) {
5763 append_to_rev_graph(graph, filler->line);
5764 if (graph_parent_is_merge(graph->prev) &&
5765 graph->prev->pos == i)
5766 filler = &fillers[RSHARP];
5768 append_to_rev_graph(graph, filler->separator);
5771 /* Place the symbol for this revision. */
5772 append_to_rev_graph(graph, symbol);
5774 if (graph->prev->size > graph->size)
5775 filler = &fillers[RDIAG];
5777 filler = &fillers[DEFAULT];
5781 for (; i < graph->size; i++) {
5782 append_to_rev_graph(graph, filler->separator);
5783 append_to_rev_graph(graph, filler->line);
5784 if (graph_parent_is_merge(graph->prev) &&
5785 i < graph->prev->pos + graph->parents->size)
5786 filler = &fillers[RSHARP];
5787 if (graph->prev->size > graph->size)
5788 filler = &fillers[LDIAG];
5791 if (graph->prev->size > graph->size) {
5792 append_to_rev_graph(graph, filler->separator);
5793 if (filler->line != ' ')
5794 append_to_rev_graph(graph, filler->line);
5798 /* Prepare the next rev graph */
5800 prepare_rev_graph(struct rev_graph *graph)
5804 /* First, traverse all lines of revisions up to the active one. */
5805 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5806 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5809 push_rev_graph(graph->next, graph->rev[graph->pos]);
5812 /* Interleave the new revision parent(s). */
5813 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5814 push_rev_graph(graph->next, graph->parents->rev[i]);
5816 /* Lastly, put any remaining revisions. */
5817 for (i = graph->pos + 1; i < graph->size; i++)
5818 push_rev_graph(graph->next, graph->rev[i]);
5822 update_rev_graph(struct view *view, struct rev_graph *graph)
5824 /* If this is the finalizing update ... */
5826 prepare_rev_graph(graph);
5828 /* Graph visualization needs a one rev look-ahead,
5829 * so the first update doesn't visualize anything. */
5830 if (!graph->prev->commit)
5833 if (view->lines > 2)
5834 view->line[view->lines - 3].dirty = 1;
5835 if (view->lines > 1)
5836 view->line[view->lines - 2].dirty = 1;
5837 draw_rev_graph(graph->prev);
5838 done_rev_graph(graph->prev->prev);
5846 static const char *main_argv[SIZEOF_ARG] = {
5847 "git", "log", "--no-color", "--pretty=raw", "--parents",
5848 "--topo-order", "%(head)", NULL
5852 main_draw(struct view *view, struct line *line, unsigned int lineno)
5854 struct commit *commit = line->data;
5856 if (!*commit->author)
5859 if (opt_date && draw_date(view, &commit->time))
5862 if (opt_author && draw_author(view, commit->author))
5865 if (opt_rev_graph && commit->graph_size &&
5866 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5869 if (opt_show_refs && commit->refs) {
5873 enum line_type type;
5875 if (commit->refs[i]->head)
5876 type = LINE_MAIN_HEAD;
5877 else if (commit->refs[i]->ltag)
5878 type = LINE_MAIN_LOCAL_TAG;
5879 else if (commit->refs[i]->tag)
5880 type = LINE_MAIN_TAG;
5881 else if (commit->refs[i]->tracked)
5882 type = LINE_MAIN_TRACKED;
5883 else if (commit->refs[i]->remote)
5884 type = LINE_MAIN_REMOTE;
5886 type = LINE_MAIN_REF;
5888 if (draw_text(view, type, "[", TRUE) ||
5889 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5890 draw_text(view, type, "]", TRUE))
5893 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5895 } while (commit->refs[i++]->next);
5898 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5902 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5904 main_read(struct view *view, char *line)
5906 static struct rev_graph *graph = graph_stacks;
5907 enum line_type type;
5908 struct commit *commit;
5913 if (!view->lines && !view->parent)
5914 die("No revisions match the given arguments.");
5915 if (view->lines > 0) {
5916 commit = view->line[view->lines - 1].data;
5917 view->line[view->lines - 1].dirty = 1;
5918 if (!*commit->author) {
5921 graph->commit = NULL;
5924 update_rev_graph(view, graph);
5926 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5927 clear_rev_graph(&graph_stacks[i]);
5931 type = get_line_type(line);
5932 if (type == LINE_COMMIT) {
5933 commit = calloc(1, sizeof(struct commit));
5937 line += STRING_SIZE("commit ");
5939 graph->boundary = 1;
5943 string_copy_rev(commit->id, line);
5944 commit->refs = get_refs(commit->id);
5945 graph->commit = commit;
5946 add_line_data(view, commit, LINE_MAIN_COMMIT);
5948 while ((line = strchr(line, ' '))) {
5950 push_rev_graph(graph->parents, line);
5951 commit->has_parents = TRUE;
5958 commit = view->line[view->lines - 1].data;
5962 if (commit->has_parents)
5964 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5968 parse_author_line(line + STRING_SIZE("author "),
5969 commit->author, sizeof(commit->author),
5971 update_rev_graph(view, graph);
5972 graph = graph->next;
5976 /* Fill in the commit title if it has not already been set. */
5977 if (commit->title[0])
5980 /* Require titles to start with a non-space character at the
5981 * offset used by git log. */
5982 if (strncmp(line, " ", 4))
5985 /* Well, if the title starts with a whitespace character,
5986 * try to be forgiving. Otherwise we end up with no title. */
5987 while (isspace(*line))
5991 /* FIXME: More graceful handling of titles; append "..." to
5992 * shortened titles, etc. */
5994 string_expand(commit->title, sizeof(commit->title), line, 1);
5995 view->line[view->lines - 1].dirty = 1;
6002 main_request(struct view *view, enum request request, struct line *line)
6004 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
6008 open_view(view, REQ_VIEW_DIFF, flags);
6012 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
6022 grep_refs(struct ref **refs, regex_t *regex)
6030 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
6032 } while (refs[i++]->next);
6038 main_grep(struct view *view, struct line *line)
6040 struct commit *commit = line->data;
6041 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
6042 char buf[DATE_COLS + 1];
6045 for (state = S_TITLE; state < S_END; state++) {
6049 case S_TITLE: text = commit->title; break;
6053 text = commit->author;
6058 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
6065 if (grep_refs(commit->refs, view->regex) == TRUE)
6072 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
6080 main_select(struct view *view, struct line *line)
6082 struct commit *commit = line->data;
6084 string_copy_rev(view->ref, commit->id);
6085 string_copy_rev(ref_commit, view->ref);
6088 static struct view_ops main_ops = {
6101 * Unicode / UTF-8 handling
6103 * NOTE: Much of the following code for dealing with Unicode is derived from
6104 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
6105 * src/intl/charset.c from the UTF-8 branch commit elinks-0.11.0-g31f2c28.
6109 unicode_width(unsigned long c)
6112 (c <= 0x115f /* Hangul Jamo */
6115 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
6117 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
6118 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
6119 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
6120 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
6121 || (c >= 0xffe0 && c <= 0xffe6)
6122 || (c >= 0x20000 && c <= 0x2fffd)
6123 || (c >= 0x30000 && c <= 0x3fffd)))
6127 return opt_tab_size;
6132 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
6133 * Illegal bytes are set one. */
6134 static const unsigned char utf8_bytes[256] = {
6135 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,
6136 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,
6137 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,
6138 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,
6139 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,
6140 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,
6141 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,
6142 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,
6145 /* Decode UTF-8 multi-byte representation into a Unicode character. */
6146 static inline unsigned long
6147 utf8_to_unicode(const char *string, size_t length)
6149 unsigned long unicode;
6153 unicode = string[0];
6156 unicode = (string[0] & 0x1f) << 6;
6157 unicode += (string[1] & 0x3f);
6160 unicode = (string[0] & 0x0f) << 12;
6161 unicode += ((string[1] & 0x3f) << 6);
6162 unicode += (string[2] & 0x3f);
6165 unicode = (string[0] & 0x0f) << 18;
6166 unicode += ((string[1] & 0x3f) << 12);
6167 unicode += ((string[2] & 0x3f) << 6);
6168 unicode += (string[3] & 0x3f);
6171 unicode = (string[0] & 0x0f) << 24;
6172 unicode += ((string[1] & 0x3f) << 18);
6173 unicode += ((string[2] & 0x3f) << 12);
6174 unicode += ((string[3] & 0x3f) << 6);
6175 unicode += (string[4] & 0x3f);
6178 unicode = (string[0] & 0x01) << 30;
6179 unicode += ((string[1] & 0x3f) << 24);
6180 unicode += ((string[2] & 0x3f) << 18);
6181 unicode += ((string[3] & 0x3f) << 12);
6182 unicode += ((string[4] & 0x3f) << 6);
6183 unicode += (string[5] & 0x3f);
6186 die("Invalid Unicode length");
6189 /* Invalid characters could return the special 0xfffd value but NUL
6190 * should be just as good. */
6191 return unicode > 0xffff ? 0 : unicode;
6194 /* Calculates how much of string can be shown within the given maximum width
6195 * and sets trimmed parameter to non-zero value if all of string could not be
6196 * shown. If the reserve flag is TRUE, it will reserve at least one
6197 * trailing character, which can be useful when drawing a delimiter.
6199 * Returns the number of bytes to output from string to satisfy max_width. */
6201 utf8_length(const char **start, size_t skip, int *width, size_t max_width, int *trimmed, bool reserve)
6203 const char *string = *start;
6204 const char *end = strchr(string, '\0');
6205 unsigned char last_bytes = 0;
6206 size_t last_ucwidth = 0;
6211 while (string < end) {
6212 int c = *(unsigned char *) string;
6213 unsigned char bytes = utf8_bytes[c];
6215 unsigned long unicode;
6217 if (string + bytes > end)
6220 /* Change representation to figure out whether
6221 * it is a single- or double-width character. */
6223 unicode = utf8_to_unicode(string, bytes);
6224 /* FIXME: Graceful handling of invalid Unicode character. */
6228 ucwidth = unicode_width(unicode);
6230 skip -= ucwidth <= skip ? ucwidth : skip;
6234 if (*width > max_width) {
6237 if (reserve && *width == max_width) {
6238 string -= last_bytes;
6239 *width -= last_ucwidth;
6245 last_bytes = ucwidth ? bytes : 0;
6246 last_ucwidth = ucwidth;
6249 return string - *start;
6257 /* Whether or not the curses interface has been initialized. */
6258 static bool cursed = FALSE;
6260 /* Terminal hacks and workarounds. */
6261 static bool use_scroll_redrawwin;
6262 static bool use_scroll_status_wclear;
6264 /* The status window is used for polling keystrokes. */
6265 static WINDOW *status_win;
6267 /* Reading from the prompt? */
6268 static bool input_mode = FALSE;
6270 static bool status_empty = FALSE;
6272 /* Update status and title window. */
6274 report(const char *msg, ...)
6276 struct view *view = display[current_view];
6282 char buf[SIZEOF_STR];
6285 va_start(args, msg);
6286 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6287 buf[sizeof(buf) - 1] = 0;
6288 buf[sizeof(buf) - 2] = '.';
6289 buf[sizeof(buf) - 3] = '.';
6290 buf[sizeof(buf) - 4] = '.';
6296 if (!status_empty || *msg) {
6299 va_start(args, msg);
6301 wmove(status_win, 0, 0);
6302 if (view->has_scrolled && use_scroll_status_wclear)
6305 vwprintw(status_win, msg, args);
6306 status_empty = FALSE;
6308 status_empty = TRUE;
6310 wclrtoeol(status_win);
6311 wnoutrefresh(status_win);
6316 update_view_title(view);
6319 /* Controls when nodelay should be in effect when polling user input. */
6321 set_nonblocking_input(bool loading)
6323 static unsigned int loading_views;
6325 if ((loading == FALSE && loading_views-- == 1) ||
6326 (loading == TRUE && loading_views++ == 0))
6327 nodelay(status_win, loading);
6336 /* Initialize the curses library */
6337 if (isatty(STDIN_FILENO)) {
6338 cursed = !!initscr();
6341 /* Leave stdin and stdout alone when acting as a pager. */
6342 opt_tty = fopen("/dev/tty", "r+");
6344 die("Failed to open /dev/tty");
6345 cursed = !!newterm(NULL, opt_tty, opt_tty);
6349 die("Failed to initialize curses");
6351 nonl(); /* Disable conversion and detect newlines from input. */
6352 cbreak(); /* Take input chars one at a time, no wait for \n */
6353 noecho(); /* Don't echo input */
6354 leaveok(stdscr, FALSE);
6359 getmaxyx(stdscr, y, x);
6360 status_win = newwin(1, 0, y - 1, 0);
6362 die("Failed to create status window");
6364 /* Enable keyboard mapping */
6365 keypad(status_win, TRUE);
6366 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6368 TABSIZE = opt_tab_size;
6369 if (opt_line_graphics) {
6370 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6373 term = getenv("XTERM_VERSION") ? NULL : getenv("COLORTERM");
6374 if (term && !strcmp(term, "gnome-terminal")) {
6375 /* In the gnome-terminal-emulator, the message from
6376 * scrolling up one line when impossible followed by
6377 * scrolling down one line causes corruption of the
6378 * status line. This is fixed by calling wclear. */
6379 use_scroll_status_wclear = TRUE;
6380 use_scroll_redrawwin = FALSE;
6382 } else if (term && !strcmp(term, "xrvt-xpm")) {
6383 /* No problems with full optimizations in xrvt-(unicode)
6385 use_scroll_status_wclear = use_scroll_redrawwin = FALSE;
6388 /* When scrolling in (u)xterm the last line in the
6389 * scrolling direction will update slowly. */
6390 use_scroll_redrawwin = TRUE;
6391 use_scroll_status_wclear = FALSE;
6396 get_input(int prompt_position)
6399 int i, key, cursor_y, cursor_x;
6401 if (prompt_position)
6405 foreach_view (view, i) {
6407 if (view_is_displayed(view) && view->has_scrolled &&
6408 use_scroll_redrawwin)
6409 redrawwin(view->win);
6410 view->has_scrolled = FALSE;
6413 /* Update the cursor position. */
6414 if (prompt_position) {
6415 getbegyx(status_win, cursor_y, cursor_x);
6416 cursor_x = prompt_position;
6418 view = display[current_view];
6419 getbegyx(view->win, cursor_y, cursor_x);
6420 cursor_x = view->width - 1;
6421 cursor_y += view->lineno - view->offset;
6423 setsyx(cursor_y, cursor_x);
6425 /* Refresh, accept single keystroke of input */
6427 key = wgetch(status_win);
6429 /* wgetch() with nodelay() enabled returns ERR when
6430 * there's no input. */
6433 } else if (key == KEY_RESIZE) {
6436 getmaxyx(stdscr, height, width);
6438 wresize(status_win, 1, width);
6439 mvwin(status_win, height - 1, 0);
6440 wnoutrefresh(status_win);
6442 redraw_display(TRUE);
6452 prompt_input(const char *prompt, input_handler handler, void *data)
6454 enum input_status status = INPUT_OK;
6455 static char buf[SIZEOF_STR];
6460 while (status == INPUT_OK || status == INPUT_SKIP) {
6463 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6464 wclrtoeol(status_win);
6466 key = get_input(pos + 1);
6471 status = pos ? INPUT_STOP : INPUT_CANCEL;
6478 status = INPUT_CANCEL;
6482 status = INPUT_CANCEL;
6486 if (pos >= sizeof(buf)) {
6487 report("Input string too long");
6491 status = handler(data, buf, key);
6492 if (status == INPUT_OK)
6493 buf[pos++] = (char) key;
6497 /* Clear the status window */
6498 status_empty = FALSE;
6501 if (status == INPUT_CANCEL)
6509 static enum input_status
6510 prompt_yesno_handler(void *data, char *buf, int c)
6512 if (c == 'y' || c == 'Y')
6514 if (c == 'n' || c == 'N')
6515 return INPUT_CANCEL;
6520 prompt_yesno(const char *prompt)
6522 char prompt2[SIZEOF_STR];
6524 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6527 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6530 static enum input_status
6531 read_prompt_handler(void *data, char *buf, int c)
6533 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6537 read_prompt(const char *prompt)
6539 return prompt_input(prompt, read_prompt_handler, NULL);
6543 * Repository properties
6546 static struct ref *refs = NULL;
6547 static size_t refs_alloc = 0;
6548 static size_t refs_size = 0;
6550 /* Id <-> ref store */
6551 static struct ref ***id_refs = NULL;
6552 static size_t id_refs_alloc = 0;
6553 static size_t id_refs_size = 0;
6556 compare_refs(const void *ref1_, const void *ref2_)
6558 const struct ref *ref1 = *(const struct ref **)ref1_;
6559 const struct ref *ref2 = *(const struct ref **)ref2_;
6561 if (ref1->tag != ref2->tag)
6562 return ref2->tag - ref1->tag;
6563 if (ref1->ltag != ref2->ltag)
6564 return ref2->ltag - ref2->ltag;
6565 if (ref1->head != ref2->head)
6566 return ref2->head - ref1->head;
6567 if (ref1->tracked != ref2->tracked)
6568 return ref2->tracked - ref1->tracked;
6569 if (ref1->remote != ref2->remote)
6570 return ref2->remote - ref1->remote;
6571 return strcmp(ref1->name, ref2->name);
6574 static struct ref **
6575 get_refs(const char *id)
6577 struct ref ***tmp_id_refs;
6578 struct ref **ref_list = NULL;
6579 size_t ref_list_alloc = 0;
6580 size_t ref_list_size = 0;
6583 for (i = 0; i < id_refs_size; i++)
6584 if (!strcmp(id, id_refs[i][0]->id))
6587 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6592 id_refs = tmp_id_refs;
6594 for (i = 0; i < refs_size; i++) {
6597 if (strcmp(id, refs[i].id))
6600 tmp = realloc_items(ref_list, &ref_list_alloc,
6601 ref_list_size + 1, sizeof(*ref_list));
6609 ref_list[ref_list_size] = &refs[i];
6610 /* XXX: The properties of the commit chains ensures that we can
6611 * safely modify the shared ref. The repo references will
6612 * always be similar for the same id. */
6613 ref_list[ref_list_size]->next = 1;
6619 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6620 ref_list[ref_list_size - 1]->next = 0;
6621 id_refs[id_refs_size++] = ref_list;
6628 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6633 bool remote = FALSE;
6634 bool tracked = FALSE;
6635 bool check_replace = FALSE;
6638 if (!prefixcmp(name, "refs/tags/")) {
6639 if (!suffixcmp(name, namelen, "^{}")) {
6642 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6643 check_replace = TRUE;
6649 namelen -= STRING_SIZE("refs/tags/");
6650 name += STRING_SIZE("refs/tags/");
6652 } else if (!prefixcmp(name, "refs/remotes/")) {
6654 namelen -= STRING_SIZE("refs/remotes/");
6655 name += STRING_SIZE("refs/remotes/");
6656 tracked = !strcmp(opt_remote, name);
6658 } else if (!prefixcmp(name, "refs/heads/")) {
6659 namelen -= STRING_SIZE("refs/heads/");
6660 name += STRING_SIZE("refs/heads/");
6661 head = !strncmp(opt_head, name, namelen);
6663 } else if (!strcmp(name, "HEAD")) {
6664 string_ncopy(opt_head_rev, id, idlen);
6668 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6669 /* it's an annotated tag, replace the previous SHA1 with the
6670 * resolved commit id; relies on the fact git-ls-remote lists
6671 * the commit id of an annotated tag right before the commit id
6673 refs[refs_size - 1].ltag = ltag;
6674 string_copy_rev(refs[refs_size - 1].id, id);
6678 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6682 ref = &refs[refs_size++];
6683 ref->name = malloc(namelen + 1);
6687 strncpy(ref->name, name, namelen);
6688 ref->name[namelen] = 0;
6692 ref->remote = remote;
6693 ref->tracked = tracked;
6694 string_copy_rev(ref->id, id);
6702 static const char *ls_remote_argv[SIZEOF_ARG] = {
6703 "git", "ls-remote", opt_git_dir, NULL
6705 static bool init = FALSE;
6708 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6715 while (refs_size > 0)
6716 free(refs[--refs_size].name);
6717 while (id_refs_size > 0)
6718 free(id_refs[--id_refs_size]);
6720 return run_io_load(ls_remote_argv, "\t", read_ref);
6724 set_remote_branch(const char *name, const char *value, size_t valuelen)
6726 if (!strcmp(name, ".remote")) {
6727 string_ncopy(opt_remote, value, valuelen);
6729 } else if (*opt_remote && !strcmp(name, ".merge")) {
6730 size_t from = strlen(opt_remote);
6732 if (!prefixcmp(value, "refs/heads/"))
6733 value += STRING_SIZE("refs/heads/");
6735 if (!string_format_from(opt_remote, &from, "/%s", value))
6741 set_repo_config_option(char *name, char *value, int (*cmd)(int, const char **))
6743 const char *argv[SIZEOF_ARG] = { name, "=" };
6744 int argc = 1 + (cmd == option_set_command);
6747 if (!argv_from_string(argv, &argc, value))
6748 config_msg = "Too many option arguments";
6750 error = cmd(argc, argv);
6753 warn("Option 'tig.%s': %s", name, config_msg);
6757 set_environment_variable(const char *name, const char *value)
6759 size_t len = strlen(name) + 1 + strlen(value) + 1;
6760 char *env = malloc(len);
6763 string_nformat(env, len, NULL, "%s=%s", name, value) &&
6771 set_work_tree(const char *value)
6773 char cwd[SIZEOF_STR];
6775 if (!getcwd(cwd, sizeof(cwd)))
6776 die("Failed to get cwd path: %s", strerror(errno));
6777 if (chdir(opt_git_dir) < 0)
6778 die("Failed to chdir(%s): %s", strerror(errno));
6779 if (!getcwd(opt_git_dir, sizeof(opt_git_dir)))
6780 die("Failed to get git path: %s", strerror(errno));
6782 die("Failed to chdir(%s): %s", cwd, strerror(errno));
6783 if (chdir(value) < 0)
6784 die("Failed to chdir(%s): %s", value, strerror(errno));
6785 if (!getcwd(cwd, sizeof(cwd)))
6786 die("Failed to get cwd path: %s", strerror(errno));
6787 if (!set_environment_variable("GIT_WORK_TREE", cwd))
6788 die("Failed to set GIT_WORK_TREE to '%s'", cwd);
6789 if (!set_environment_variable("GIT_DIR", opt_git_dir))
6790 die("Failed to set GIT_DIR to '%s'", opt_git_dir);
6791 opt_is_inside_work_tree = TRUE;
6795 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6797 if (!strcmp(name, "i18n.commitencoding"))
6798 string_ncopy(opt_encoding, value, valuelen);
6800 else if (!strcmp(name, "core.editor"))
6801 string_ncopy(opt_editor, value, valuelen);
6803 else if (!strcmp(name, "core.worktree"))
6804 set_work_tree(value);
6806 else if (!prefixcmp(name, "tig.color."))
6807 set_repo_config_option(name + 10, value, option_color_command);
6809 else if (!prefixcmp(name, "tig.bind."))
6810 set_repo_config_option(name + 9, value, option_bind_command);
6812 else if (!prefixcmp(name, "tig."))
6813 set_repo_config_option(name + 4, value, option_set_command);
6815 else if (*opt_head && !prefixcmp(name, "branch.") &&
6816 !strncmp(name + 7, opt_head, strlen(opt_head)))
6817 set_remote_branch(name + 7 + strlen(opt_head), value, valuelen);
6823 load_git_config(void)
6825 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6827 return run_io_load(config_list_argv, "=", read_repo_config_option);
6831 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6833 if (!opt_git_dir[0]) {
6834 string_ncopy(opt_git_dir, name, namelen);
6836 } else if (opt_is_inside_work_tree == -1) {
6837 /* This can be 3 different values depending on the
6838 * version of git being used. If git-rev-parse does not
6839 * understand --is-inside-work-tree it will simply echo
6840 * the option else either "true" or "false" is printed.
6841 * Default to true for the unknown case. */
6842 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6844 } else if (*name == '.') {
6845 string_ncopy(opt_cdup, name, namelen);
6848 string_ncopy(opt_prefix, name, namelen);
6855 load_repo_info(void)
6857 const char *head_argv[] = {
6858 "git", "symbolic-ref", "HEAD", NULL
6860 const char *rev_parse_argv[] = {
6861 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6862 "--show-cdup", "--show-prefix", NULL
6865 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6866 chomp_string(opt_head);
6867 if (!prefixcmp(opt_head, "refs/heads/")) {
6868 char *offset = opt_head + STRING_SIZE("refs/heads/");
6870 memmove(opt_head, offset, strlen(offset) + 1);
6874 return run_io_load(rev_parse_argv, "=", read_repo_info);
6882 static const char usage[] =
6883 "tig " TIG_VERSION " (" __DATE__ ")\n"
6885 "Usage: tig [options] [revs] [--] [paths]\n"
6886 " or: tig show [options] [revs] [--] [paths]\n"
6887 " or: tig blame [rev] path\n"
6889 " or: tig < [git command output]\n"
6892 " -v, --version Show version and exit\n"
6893 " -h, --help Show help message and exit";
6895 static void __NORETURN
6898 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6904 static void __NORETURN
6905 die(const char *err, ...)
6911 va_start(args, err);
6912 fputs("tig: ", stderr);
6913 vfprintf(stderr, err, args);
6914 fputs("\n", stderr);
6921 warn(const char *msg, ...)
6925 va_start(args, msg);
6926 fputs("tig warning: ", stderr);
6927 vfprintf(stderr, msg, args);
6928 fputs("\n", stderr);
6933 parse_options(int argc, const char *argv[])
6935 enum request request = REQ_VIEW_MAIN;
6936 const char *subcommand;
6937 bool seen_dashdash = FALSE;
6938 /* XXX: This is vulnerable to the user overriding options
6939 * required for the main view parser. */
6940 const char *custom_argv[SIZEOF_ARG] = {
6941 "git", "log", "--no-color", "--pretty=raw", "--parents",
6942 "--topo-order", NULL
6946 if (!isatty(STDIN_FILENO)) {
6947 io_open(&VIEW(REQ_VIEW_PAGER)->io, "");
6948 return REQ_VIEW_PAGER;
6954 subcommand = argv[1];
6955 if (!strcmp(subcommand, "status")) {
6957 warn("ignoring arguments after `%s'", subcommand);
6958 return REQ_VIEW_STATUS;
6960 } else if (!strcmp(subcommand, "blame")) {
6961 if (argc <= 2 || argc > 4)
6962 die("invalid number of options to blame\n\n%s", usage);
6966 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
6970 string_ncopy(opt_file, argv[i], strlen(argv[i]));
6971 return REQ_VIEW_BLAME;
6973 } else if (!strcmp(subcommand, "show")) {
6974 request = REQ_VIEW_DIFF;
6981 custom_argv[1] = subcommand;
6985 for (i = 1 + !!subcommand; i < argc; i++) {
6986 const char *opt = argv[i];
6988 if (seen_dashdash || !strcmp(opt, "--")) {
6989 seen_dashdash = TRUE;
6991 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
6992 printf("tig version %s\n", TIG_VERSION);
6995 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
6996 printf("%s\n", usage);
7000 custom_argv[j++] = opt;
7001 if (j >= ARRAY_SIZE(custom_argv))
7002 die("command too long");
7005 if (!prepare_update(VIEW(request), custom_argv, NULL, FORMAT_NONE))
7006 die("Failed to format arguments");
7012 main(int argc, const char *argv[])
7014 enum request request = parse_options(argc, argv);
7018 signal(SIGINT, quit);
7019 signal(SIGPIPE, SIG_IGN);
7021 if (setlocale(LC_ALL, "")) {
7022 char *codeset = nl_langinfo(CODESET);
7024 string_ncopy(opt_codeset, codeset, strlen(codeset));
7027 if (load_repo_info() == ERR)
7028 die("Failed to load repo info.");
7030 if (load_options() == ERR)
7031 die("Failed to load user config.");
7033 if (load_git_config() == ERR)
7034 die("Failed to load repo config.");
7036 /* Require a git repository unless when running in pager mode. */
7037 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
7038 die("Not a git repository");
7040 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
7043 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
7044 opt_iconv = iconv_open(opt_codeset, opt_encoding);
7045 if (opt_iconv == ICONV_NONE)
7046 die("Failed to initialize character set conversion");
7049 if (load_refs() == ERR)
7050 die("Failed to load refs.");
7052 foreach_view (view, i)
7053 argv_from_env(view->ops->argv, view->cmd_env);
7057 if (request != REQ_NONE)
7058 open_view(NULL, request, OPEN_PREPARED);
7059 request = request == REQ_NONE ? REQ_VIEW_MAIN : REQ_NONE;
7061 while (view_driver(display[current_view], request)) {
7062 int key = get_input(0);
7064 view = display[current_view];
7065 request = get_keybinding(view->keymap, key);
7067 /* Some low-level request handling. This keeps access to
7068 * status_win restricted. */
7072 char *cmd = read_prompt(":");
7074 if (cmd && isdigit(*cmd)) {
7075 int lineno = view->lineno + 1;
7077 if (parse_int(&lineno, cmd, 1, view->lines + 1) == OK) {
7078 select_view_line(view, lineno - 1);
7081 report("Unable to parse '%s' as a line number", cmd);
7085 struct view *next = VIEW(REQ_VIEW_PAGER);
7086 const char *argv[SIZEOF_ARG] = { "git" };
7089 /* When running random commands, initially show the
7090 * command in the title. However, it maybe later be
7091 * overwritten if a commit line is selected. */
7092 string_ncopy(next->ref, cmd, strlen(cmd));
7094 if (!argv_from_string(argv, &argc, cmd)) {
7095 report("Too many arguments");
7096 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
7097 report("Failed to format command");
7099 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
7107 case REQ_SEARCH_BACK:
7109 const char *prompt = request == REQ_SEARCH ? "/" : "?";
7110 char *search = read_prompt(prompt);
7113 string_ncopy(opt_search, search, strlen(search));
7114 else if (*opt_search)
7115 request = request == REQ_SEARCH ?