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 chtype 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, len, FALSE);
1916 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1918 view->col += draw_chars(view, type, string, view->width + view->yoffset - view->col, trim);
1919 return view->width + view->yoffset <= view->col;
1923 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1925 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1926 int max = view->width + view->yoffset - view->col;
1932 set_view_attr(view, type);
1933 /* Using waddch() instead of waddnstr() ensures that
1934 * they'll be rendered correctly for the cursor line. */
1935 for (i = skip; i < size; i++)
1936 waddch(view->win, graphic[i]);
1939 if (size < max && skip <= size)
1940 waddch(view->win, ' ');
1943 return view->width + view->yoffset <= view->col;
1947 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1949 int max = MIN(view->width + view->yoffset - view->col, len);
1953 col = draw_chars(view, type, text, max - 1, trim);
1955 col = draw_space(view, type, max - 1, max - 1);
1958 view->col += draw_space(view, LINE_DEFAULT, max - col, max - col);
1959 return view->width + view->yoffset <= view->col;
1963 draw_date(struct view *view, struct tm *time)
1965 char buf[DATE_COLS];
1970 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1971 date = timelen ? buf : NULL;
1973 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
1977 draw_author(struct view *view, const char *author)
1979 bool trim = opt_author_cols == 0 || opt_author_cols > 5 || !author;
1982 static char initials[10];
1985 #define is_initial_sep(c) (isspace(c) || ispunct(c) || (c) == '@')
1987 memset(initials, 0, sizeof(initials));
1988 for (pos = 0; *author && pos < opt_author_cols - 1; author++, pos++) {
1989 while (is_initial_sep(*author))
1991 strncpy(&initials[pos], author, sizeof(initials) - 1 - pos);
1992 while (*author && !is_initial_sep(author[1]))
1999 return draw_field(view, LINE_AUTHOR, author, opt_author_cols, trim);
2003 draw_mode(struct view *view, mode_t mode)
2009 else if (S_ISLNK(mode))
2011 else if (S_ISGITLINK(mode))
2013 else if (S_ISREG(mode) && mode & S_IXUSR)
2015 else if (S_ISREG(mode))
2020 return draw_field(view, LINE_MODE, str, STRING_SIZE("-rw-r--r-- "), FALSE);
2024 draw_lineno(struct view *view, unsigned int lineno)
2027 int digits3 = view->digits < 3 ? 3 : view->digits;
2028 int max = MIN(view->width + view->yoffset - view->col, digits3);
2031 lineno += view->offset + 1;
2032 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
2033 static char fmt[] = "%1ld";
2035 fmt[1] = '0' + (view->digits <= 9 ? digits3 : 1);
2036 if (string_format(number, fmt, lineno))
2040 view->col += draw_chars(view, LINE_LINE_NUMBER, text, max, TRUE);
2042 view->col += draw_space(view, LINE_LINE_NUMBER, max, digits3);
2043 return draw_graphic(view, LINE_DEFAULT, &line_graphics[LINE_GRAPHIC_VLINE], 1);
2047 draw_view_line(struct view *view, unsigned int lineno)
2050 bool selected = (view->offset + lineno == view->lineno);
2052 assert(view_is_displayed(view));
2054 if (view->offset + lineno >= view->lines)
2057 line = &view->line[view->offset + lineno];
2059 wmove(view->win, lineno, 0);
2061 wclrtoeol(view->win);
2063 view->curline = line;
2064 view->curtype = LINE_NONE;
2065 line->selected = FALSE;
2066 line->dirty = line->cleareol = 0;
2069 set_view_attr(view, LINE_CURSOR);
2070 line->selected = TRUE;
2071 view->ops->select(view, line);
2074 return view->ops->draw(view, line, lineno);
2078 redraw_view_dirty(struct view *view)
2083 for (lineno = 0; lineno < view->height; lineno++) {
2084 if (view->offset + lineno >= view->lines)
2086 if (!view->line[view->offset + lineno].dirty)
2089 if (!draw_view_line(view, lineno))
2095 wnoutrefresh(view->win);
2099 redraw_view_from(struct view *view, int lineno)
2101 assert(0 <= lineno && lineno < view->height);
2103 for (; lineno < view->height; lineno++) {
2104 if (!draw_view_line(view, lineno))
2108 wnoutrefresh(view->win);
2112 redraw_view(struct view *view)
2115 redraw_view_from(view, 0);
2120 update_view_title(struct view *view)
2122 char buf[SIZEOF_STR];
2123 char state[SIZEOF_STR];
2124 size_t bufpos = 0, statelen = 0;
2126 assert(view_is_displayed(view));
2128 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2129 unsigned int view_lines = view->offset + view->height;
2130 unsigned int lines = view->lines
2131 ? MIN(view_lines, view->lines) * 100 / view->lines
2134 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2143 time_t secs = time(NULL) - view->start_time;
2145 /* Three git seconds are a long time ... */
2147 string_format_from(state, &statelen, " loading %lds", secs);
2150 string_format_from(buf, &bufpos, "[%s]", view->name);
2151 if (*view->ref && bufpos < view->width) {
2152 size_t refsize = strlen(view->ref);
2153 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2155 if (minsize < view->width)
2156 refsize = view->width - minsize + 7;
2157 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2160 if (statelen && bufpos < view->width) {
2161 string_format_from(buf, &bufpos, "%s", state);
2164 if (view == display[current_view])
2165 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2167 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2169 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2170 wclrtoeol(view->title);
2171 wnoutrefresh(view->title);
2175 resize_display(void)
2178 struct view *base = display[0];
2179 struct view *view = display[1] ? display[1] : display[0];
2181 /* Setup window dimensions */
2183 getmaxyx(stdscr, base->height, base->width);
2185 /* Make room for the status window. */
2189 /* Horizontal split. */
2190 view->width = base->width;
2191 view->height = SCALE_SPLIT_VIEW(base->height);
2192 base->height -= view->height;
2194 /* Make room for the title bar. */
2198 /* Make room for the title bar. */
2203 foreach_displayed_view (view, i) {
2205 view->win = newwin(view->height, 0, offset, 0);
2207 die("Failed to create %s view", view->name);
2209 scrollok(view->win, FALSE);
2211 view->title = newwin(1, 0, offset + view->height, 0);
2213 die("Failed to create title window");
2216 wresize(view->win, view->height, view->width);
2217 mvwin(view->win, offset, 0);
2218 mvwin(view->title, offset + view->height, 0);
2221 offset += view->height + 1;
2226 redraw_display(bool clear)
2231 foreach_displayed_view (view, i) {
2235 update_view_title(view);
2240 toggle_view_option(bool *option, const char *help)
2243 redraw_display(FALSE);
2244 report("%sabling %s", *option ? "En" : "Dis", help);
2248 maximize_view(struct view *view)
2250 memset(display, 0, sizeof(display));
2252 display[current_view] = view;
2254 redraw_display(FALSE);
2264 goto_view_line(struct view *view, unsigned long offset, unsigned long lineno)
2266 if (lineno >= view->lines)
2267 lineno = view->lines > 0 ? view->lines - 1 : 0;
2269 if (offset > lineno || offset + view->height <= lineno) {
2270 unsigned long half = view->height / 2;
2273 offset = lineno - half;
2278 if (offset != view->offset || lineno != view->lineno) {
2279 view->offset = offset;
2280 view->lineno = lineno;
2288 apply_step(double step, int value)
2292 value *= step + 0.01;
2293 return value ? value : 1;
2296 /* Scrolling backend */
2298 do_scroll_view(struct view *view, int lines)
2300 bool redraw_current_line = FALSE;
2302 /* The rendering expects the new offset. */
2303 view->offset += lines;
2305 assert(0 <= view->offset && view->offset < view->lines);
2308 /* Move current line into the view. */
2309 if (view->lineno < view->offset) {
2310 view->lineno = view->offset;
2311 redraw_current_line = TRUE;
2312 } else if (view->lineno >= view->offset + view->height) {
2313 view->lineno = view->offset + view->height - 1;
2314 redraw_current_line = TRUE;
2317 assert(view->offset <= view->lineno && view->lineno < view->lines);
2319 /* Redraw the whole screen if scrolling is pointless. */
2320 if (view->height < ABS(lines)) {
2324 int line = lines > 0 ? view->height - lines : 0;
2325 int end = line + ABS(lines);
2327 scrollok(view->win, TRUE);
2328 wscrl(view->win, lines);
2329 scrollok(view->win, FALSE);
2331 while (line < end && draw_view_line(view, line))
2334 if (redraw_current_line)
2335 draw_view_line(view, view->lineno - view->offset);
2336 wnoutrefresh(view->win);
2339 view->has_scrolled = TRUE;
2343 /* Scroll frontend */
2345 scroll_view(struct view *view, enum request request)
2349 assert(view_is_displayed(view));
2352 case REQ_SCROLL_LEFT:
2353 if (view->yoffset == 0) {
2354 report("Cannot scroll beyond the first column");
2357 if (view->yoffset <= apply_step(opt_hscroll, view->width))
2360 view->yoffset -= apply_step(opt_hscroll, view->width);
2361 redraw_view_from(view, 0);
2364 case REQ_SCROLL_RIGHT:
2365 view->yoffset += apply_step(opt_hscroll, view->width);
2369 case REQ_SCROLL_PAGE_DOWN:
2370 lines = view->height;
2371 case REQ_SCROLL_LINE_DOWN:
2372 if (view->offset + lines > view->lines)
2373 lines = view->lines - view->offset;
2375 if (lines == 0 || view->offset + view->height >= view->lines) {
2376 report("Cannot scroll beyond the last line");
2381 case REQ_SCROLL_PAGE_UP:
2382 lines = view->height;
2383 case REQ_SCROLL_LINE_UP:
2384 if (lines > view->offset)
2385 lines = view->offset;
2388 report("Cannot scroll beyond the first line");
2396 die("request %d not handled in switch", request);
2399 do_scroll_view(view, lines);
2404 move_view(struct view *view, enum request request)
2406 int scroll_steps = 0;
2410 case REQ_MOVE_FIRST_LINE:
2411 steps = -view->lineno;
2414 case REQ_MOVE_LAST_LINE:
2415 steps = view->lines - view->lineno - 1;
2418 case REQ_MOVE_PAGE_UP:
2419 steps = view->height > view->lineno
2420 ? -view->lineno : -view->height;
2423 case REQ_MOVE_PAGE_DOWN:
2424 steps = view->lineno + view->height >= view->lines
2425 ? view->lines - view->lineno - 1 : view->height;
2437 die("request %d not handled in switch", request);
2440 if (steps <= 0 && view->lineno == 0) {
2441 report("Cannot move beyond the first line");
2444 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2445 report("Cannot move beyond the last line");
2449 /* Move the current line */
2450 view->lineno += steps;
2451 assert(0 <= view->lineno && view->lineno < view->lines);
2453 /* Check whether the view needs to be scrolled */
2454 if (view->lineno < view->offset ||
2455 view->lineno >= view->offset + view->height) {
2456 scroll_steps = steps;
2457 if (steps < 0 && -steps > view->offset) {
2458 scroll_steps = -view->offset;
2460 } else if (steps > 0) {
2461 if (view->lineno == view->lines - 1 &&
2462 view->lines > view->height) {
2463 scroll_steps = view->lines - view->offset - 1;
2464 if (scroll_steps >= view->height)
2465 scroll_steps -= view->height - 1;
2470 if (!view_is_displayed(view)) {
2471 view->offset += scroll_steps;
2472 assert(0 <= view->offset && view->offset < view->lines);
2473 view->ops->select(view, &view->line[view->lineno]);
2477 /* Repaint the old "current" line if we be scrolling */
2478 if (ABS(steps) < view->height)
2479 draw_view_line(view, view->lineno - steps - view->offset);
2482 do_scroll_view(view, scroll_steps);
2486 /* Draw the current line */
2487 draw_view_line(view, view->lineno - view->offset);
2489 wnoutrefresh(view->win);
2498 static void search_view(struct view *view, enum request request);
2501 select_view_line(struct view *view, unsigned long lineno)
2503 unsigned long old_lineno = view->lineno;
2504 unsigned long old_offset = view->offset;
2506 if (goto_view_line(view, view->offset, lineno)) {
2507 if (view_is_displayed(view)) {
2508 if (old_offset != view->offset) {
2511 draw_view_line(view, old_lineno - view->offset);
2512 draw_view_line(view, view->lineno - view->offset);
2513 wnoutrefresh(view->win);
2516 view->ops->select(view, &view->line[view->lineno]);
2522 find_next(struct view *view, enum request request)
2524 unsigned long lineno = view->lineno;
2529 report("No previous search");
2531 search_view(view, request);
2541 case REQ_SEARCH_BACK:
2550 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2551 lineno += direction;
2553 /* Note, lineno is unsigned long so will wrap around in which case it
2554 * will become bigger than view->lines. */
2555 for (; lineno < view->lines; lineno += direction) {
2556 if (view->ops->grep(view, &view->line[lineno])) {
2557 select_view_line(view, lineno);
2558 report("Line %ld matches '%s'", lineno + 1, view->grep);
2563 report("No match found for '%s'", view->grep);
2567 search_view(struct view *view, enum request request)
2572 regfree(view->regex);
2575 view->regex = calloc(1, sizeof(*view->regex));
2580 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2581 if (regex_err != 0) {
2582 char buf[SIZEOF_STR] = "unknown error";
2584 regerror(regex_err, view->regex, buf, sizeof(buf));
2585 report("Search failed: %s", buf);
2589 string_copy(view->grep, opt_search);
2591 find_next(view, request);
2595 * Incremental updating
2599 reset_view(struct view *view)
2603 for (i = 0; i < view->lines; i++)
2604 free(view->line[i].data);
2607 view->p_offset = view->offset;
2608 view->p_yoffset = view->yoffset;
2609 view->p_lineno = view->lineno;
2616 view->line_alloc = 0;
2618 view->update_secs = 0;
2622 free_argv(const char *argv[])
2626 for (argc = 0; argv[argc]; argc++)
2627 free((void *) argv[argc]);
2631 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2633 char buf[SIZEOF_STR];
2635 bool noreplace = flags == FORMAT_NONE;
2637 free_argv(dst_argv);
2639 for (argc = 0; src_argv[argc]; argc++) {
2640 const char *arg = src_argv[argc];
2644 char *next = strstr(arg, "%(");
2645 int len = next - arg;
2648 if (!next || noreplace) {
2649 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2654 } else if (!prefixcmp(next, "%(directory)")) {
2657 } else if (!prefixcmp(next, "%(file)")) {
2660 } else if (!prefixcmp(next, "%(ref)")) {
2661 value = *opt_ref ? opt_ref : "HEAD";
2663 } else if (!prefixcmp(next, "%(head)")) {
2666 } else if (!prefixcmp(next, "%(commit)")) {
2669 } else if (!prefixcmp(next, "%(blob)")) {
2673 report("Unknown replacement: `%s`", next);
2677 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2680 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2683 dst_argv[argc] = strdup(buf);
2684 if (!dst_argv[argc])
2688 dst_argv[argc] = NULL;
2690 return src_argv[argc] == NULL;
2694 restore_view_position(struct view *view)
2696 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2699 /* Changing the view position cancels the restoring. */
2700 /* FIXME: Changing back to the first line is not detected. */
2701 if (view->offset != 0 || view->lineno != 0) {
2702 view->p_restore = FALSE;
2706 if (goto_view_line(view, view->p_offset, view->p_lineno) &&
2707 view_is_displayed(view))
2710 view->yoffset = view->p_yoffset;
2711 view->p_restore = FALSE;
2717 end_update(struct view *view, bool force)
2721 while (!view->ops->read(view, NULL))
2724 set_nonblocking_input(FALSE);
2726 kill_io(view->pipe);
2727 done_io(view->pipe);
2732 setup_update(struct view *view, const char *vid)
2734 set_nonblocking_input(TRUE);
2736 string_copy_rev(view->vid, vid);
2737 view->pipe = &view->io;
2738 view->start_time = time(NULL);
2742 prepare_update(struct view *view, const char *argv[], const char *dir,
2743 enum format_flags flags)
2746 end_update(view, TRUE);
2747 return init_io_rd(&view->io, argv, dir, flags);
2751 prepare_update_file(struct view *view, const char *name)
2754 end_update(view, TRUE);
2755 return io_open(&view->io, name);
2759 begin_update(struct view *view, bool refresh)
2762 end_update(view, TRUE);
2765 if (!start_io(&view->io))
2769 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2772 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2775 /* Put the current ref_* value to the view title ref
2776 * member. This is needed by the blob view. Most other
2777 * views sets it automatically after loading because the
2778 * first line is a commit line. */
2779 string_copy_rev(view->ref, view->id);
2782 setup_update(view, view->id);
2787 #define ITEM_CHUNK_SIZE 256
2789 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2791 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2792 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2794 if (mem == NULL || num_chunks != num_chunks_new) {
2795 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2796 mem = realloc(mem, *size * item_size);
2802 static struct line *
2803 realloc_lines(struct view *view, size_t line_size)
2805 size_t alloc = view->line_alloc;
2806 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2807 sizeof(*view->line));
2813 view->line_alloc = alloc;
2818 update_view(struct view *view)
2820 char out_buffer[BUFSIZ * 2];
2822 /* Clear the view and redraw everything since the tree sorting
2823 * might have rearranged things. */
2824 bool redraw = view->lines == 0;
2825 bool can_read = TRUE;
2830 if (!io_can_read(view->pipe)) {
2831 if (view->lines == 0 && view_is_displayed(view)) {
2832 time_t secs = time(NULL) - view->start_time;
2834 if (secs > 1 && secs > view->update_secs) {
2835 if (view->update_secs == 0)
2837 update_view_title(view);
2838 view->update_secs = secs;
2844 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2845 if (opt_iconv != ICONV_NONE) {
2846 ICONV_CONST char *inbuf = line;
2847 size_t inlen = strlen(line) + 1;
2849 char *outbuf = out_buffer;
2850 size_t outlen = sizeof(out_buffer);
2854 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2855 if (ret != (size_t) -1)
2859 if (!view->ops->read(view, line)) {
2860 report("Allocation failure");
2861 end_update(view, TRUE);
2867 unsigned long lines = view->lines;
2870 for (digits = 0; lines; digits++)
2873 /* Keep the displayed view in sync with line number scaling. */
2874 if (digits != view->digits) {
2875 view->digits = digits;
2876 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2881 if (io_error(view->pipe)) {
2882 report("Failed to read: %s", io_strerror(view->pipe));
2883 end_update(view, TRUE);
2885 } else if (io_eof(view->pipe)) {
2887 end_update(view, FALSE);
2890 if (restore_view_position(view))
2893 if (!view_is_displayed(view))
2897 redraw_view_from(view, 0);
2899 redraw_view_dirty(view);
2901 /* Update the title _after_ the redraw so that if the redraw picks up a
2902 * commit reference in view->ref it'll be available here. */
2903 update_view_title(view);
2907 static struct line *
2908 add_line_data(struct view *view, void *data, enum line_type type)
2912 if (!realloc_lines(view, view->lines + 1))
2915 line = &view->line[view->lines++];
2916 memset(line, 0, sizeof(*line));
2924 static struct line *
2925 add_line_text(struct view *view, const char *text, enum line_type type)
2927 char *data = text ? strdup(text) : NULL;
2929 return data ? add_line_data(view, data, type) : NULL;
2932 static struct line *
2933 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2935 char buf[SIZEOF_STR];
2938 va_start(args, fmt);
2939 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2943 return buf[0] ? add_line_text(view, buf, type) : NULL;
2951 OPEN_DEFAULT = 0, /* Use default view switching. */
2952 OPEN_SPLIT = 1, /* Split current view. */
2953 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2954 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2955 OPEN_PREPARED = 32, /* Open already prepared command. */
2959 open_view(struct view *prev, enum request request, enum open_flags flags)
2961 bool split = !!(flags & OPEN_SPLIT);
2962 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2963 bool nomaximize = !!(flags & OPEN_REFRESH);
2964 struct view *view = VIEW(request);
2965 int nviews = displayed_views();
2966 struct view *base_view = display[0];
2968 if (view == prev && nviews == 1 && !reload) {
2969 report("Already in %s view", view->name);
2973 if (view->git_dir && !opt_git_dir[0]) {
2974 report("The %s view is disabled in pager view", view->name);
2981 } else if (!nomaximize) {
2982 /* Maximize the current view. */
2983 memset(display, 0, sizeof(display));
2985 display[current_view] = view;
2988 /* Resize the view when switching between split- and full-screen,
2989 * or when switching between two different full-screen views. */
2990 if (nviews != displayed_views() ||
2991 (nviews == 1 && base_view != display[0]))
2994 if (view->ops->open) {
2996 end_update(view, TRUE);
2997 if (!view->ops->open(view)) {
2998 report("Failed to load %s view", view->name);
3001 restore_view_position(view);
3003 } else if ((reload || strcmp(view->vid, view->id)) &&
3004 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
3005 report("Failed to load %s view", view->name);
3009 if (split && prev->lineno - prev->offset >= prev->height) {
3010 /* Take the title line into account. */
3011 int lines = prev->lineno - prev->offset - prev->height + 1;
3013 /* Scroll the view that was split if the current line is
3014 * outside the new limited view. */
3015 do_scroll_view(prev, lines);
3018 if (prev && view != prev) {
3020 /* "Blur" the previous view. */
3021 update_view_title(prev);
3024 view->parent = prev;
3027 if (view->pipe && view->lines == 0) {
3028 /* Clear the old view and let the incremental updating refill
3031 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
3033 } else if (view_is_displayed(view)) {
3040 open_external_viewer(const char *argv[], const char *dir)
3042 def_prog_mode(); /* save current tty modes */
3043 endwin(); /* restore original tty modes */
3044 run_io_fg(argv, dir);
3045 fprintf(stderr, "Press Enter to continue");
3048 redraw_display(TRUE);
3052 open_mergetool(const char *file)
3054 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
3056 open_external_viewer(mergetool_argv, opt_cdup);
3060 open_editor(bool from_root, const char *file)
3062 const char *editor_argv[] = { "vi", file, NULL };
3065 editor = getenv("GIT_EDITOR");
3066 if (!editor && *opt_editor)
3067 editor = opt_editor;
3069 editor = getenv("VISUAL");
3071 editor = getenv("EDITOR");
3075 editor_argv[0] = editor;
3076 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3080 open_run_request(enum request request)
3082 struct run_request *req = get_run_request(request);
3083 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3086 report("Unknown run request");
3090 if (format_argv(argv, req->argv, FORMAT_ALL))
3091 open_external_viewer(argv, NULL);
3096 * User request switch noodle
3100 view_driver(struct view *view, enum request request)
3104 if (request == REQ_NONE)
3107 if (request > REQ_NONE) {
3108 open_run_request(request);
3109 /* FIXME: When all views can refresh always do this. */
3110 if (view == VIEW(REQ_VIEW_STATUS) ||
3111 view == VIEW(REQ_VIEW_MAIN) ||
3112 view == VIEW(REQ_VIEW_LOG) ||
3113 view == VIEW(REQ_VIEW_STAGE))
3114 request = REQ_REFRESH;
3119 if (view && view->lines) {
3120 request = view->ops->request(view, request, &view->line[view->lineno]);
3121 if (request == REQ_NONE)
3128 case REQ_MOVE_PAGE_UP:
3129 case REQ_MOVE_PAGE_DOWN:
3130 case REQ_MOVE_FIRST_LINE:
3131 case REQ_MOVE_LAST_LINE:
3132 move_view(view, request);
3135 case REQ_SCROLL_LEFT:
3136 case REQ_SCROLL_RIGHT:
3137 case REQ_SCROLL_LINE_DOWN:
3138 case REQ_SCROLL_LINE_UP:
3139 case REQ_SCROLL_PAGE_DOWN:
3140 case REQ_SCROLL_PAGE_UP:
3141 scroll_view(view, request);
3144 case REQ_VIEW_BLAME:
3146 report("No file chosen, press %s to open tree view",
3147 get_key(REQ_VIEW_TREE));
3150 open_view(view, request, OPEN_DEFAULT);
3155 report("No file chosen, press %s to open tree view",
3156 get_key(REQ_VIEW_TREE));
3159 open_view(view, request, OPEN_DEFAULT);
3162 case REQ_VIEW_PAGER:
3163 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3164 report("No pager content, press %s to run command from prompt",
3165 get_key(REQ_PROMPT));
3168 open_view(view, request, OPEN_DEFAULT);
3171 case REQ_VIEW_STAGE:
3172 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3173 report("No stage content, press %s to open the status view and choose file",
3174 get_key(REQ_VIEW_STATUS));
3177 open_view(view, request, OPEN_DEFAULT);
3180 case REQ_VIEW_STATUS:
3181 if (opt_is_inside_work_tree == FALSE) {
3182 report("The status view requires a working tree");
3185 open_view(view, request, OPEN_DEFAULT);
3193 open_view(view, request, OPEN_DEFAULT);
3198 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3200 if ((view == VIEW(REQ_VIEW_DIFF) &&
3201 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3202 (view == VIEW(REQ_VIEW_DIFF) &&
3203 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3204 (view == VIEW(REQ_VIEW_STAGE) &&
3205 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3206 (view == VIEW(REQ_VIEW_BLOB) &&
3207 view->parent == VIEW(REQ_VIEW_TREE))) {
3210 view = view->parent;
3211 line = view->lineno;
3212 move_view(view, request);
3213 if (view_is_displayed(view))
3214 update_view_title(view);
3215 if (line != view->lineno)
3216 view->ops->request(view, REQ_ENTER,
3217 &view->line[view->lineno]);
3220 move_view(view, request);
3226 int nviews = displayed_views();
3227 int next_view = (current_view + 1) % nviews;
3229 if (next_view == current_view) {
3230 report("Only one view is displayed");
3234 current_view = next_view;
3235 /* Blur out the title of the previous view. */
3236 update_view_title(view);
3241 report("Refreshing is not yet supported for the %s view", view->name);
3245 if (displayed_views() == 2)
3246 maximize_view(view);
3249 case REQ_TOGGLE_LINENO:
3250 toggle_view_option(&opt_line_number, "line numbers");
3253 case REQ_TOGGLE_DATE:
3254 toggle_view_option(&opt_date, "date display");
3257 case REQ_TOGGLE_AUTHOR:
3258 toggle_view_option(&opt_author, "author display");
3261 case REQ_TOGGLE_REV_GRAPH:
3262 toggle_view_option(&opt_rev_graph, "revision graph display");
3265 case REQ_TOGGLE_REFS:
3266 toggle_view_option(&opt_show_refs, "reference display");
3270 case REQ_SEARCH_BACK:
3271 search_view(view, request);
3276 find_next(view, request);
3279 case REQ_STOP_LOADING:
3280 for (i = 0; i < ARRAY_SIZE(views); i++) {
3283 report("Stopped loading the %s view", view->name),
3284 end_update(view, TRUE);
3288 case REQ_SHOW_VERSION:
3289 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3292 case REQ_SCREEN_REDRAW:
3293 redraw_display(TRUE);
3297 report("Nothing to edit");
3301 report("Nothing to enter");
3304 case REQ_VIEW_CLOSE:
3305 /* XXX: Mark closed views by letting view->parent point to the
3306 * view itself. Parents to closed view should never be
3309 view->parent->parent != view->parent) {
3310 maximize_view(view->parent);
3311 view->parent = view;
3319 report("Unknown key, press 'h' for help");
3328 * View backend utilities
3332 parse_timezone(time_t *time, const char *zone)
3336 tz = ('0' - zone[1]) * 60 * 60 * 10;
3337 tz += ('0' - zone[2]) * 60 * 60;
3338 tz += ('0' - zone[3]) * 60;
3339 tz += ('0' - zone[4]);
3347 /* Parse author lines where the name may be empty:
3348 * author <email@address.tld> 1138474660 +0100
3351 parse_author_line(char *ident, char *author, size_t authorsize, struct tm *tm)
3353 char *nameend = strchr(ident, '<');
3354 char *emailend = strchr(ident, '>');
3356 if (nameend && emailend)
3357 *nameend = *emailend = 0;
3358 ident = chomp_string(ident);
3361 ident = chomp_string(nameend + 1);
3366 string_ncopy_do(author, authorsize, ident, strlen(ident));
3368 /* Parse epoch and timezone */
3369 if (emailend && emailend[1] == ' ') {
3370 char *secs = emailend + 2;
3371 char *zone = strchr(secs, ' ');
3372 time_t time = (time_t) atol(secs);
3374 if (zone && strlen(zone) == STRING_SIZE(" +0700"))
3375 parse_timezone(&time, zone + 1);
3377 gmtime_r(&time, tm);
3381 static enum input_status
3382 select_commit_parent_handler(void *data, char *buf, int c)
3384 size_t parents = *(size_t *) data;
3391 parent = atoi(buf) * 10;
3394 if (parent > parents)
3400 select_commit_parent(const char *id, char rev[SIZEOF_REV], const char *path)
3402 char buf[SIZEOF_STR * 4];
3403 const char *revlist_argv[] = {
3404 "git", "rev-list", "-1", "--parents", id, "--", path, NULL
3408 if (!run_io_buf(revlist_argv, buf, sizeof(buf)) ||
3409 !*chomp_string(buf) ||
3410 (parents = (strlen(buf) / 40) - 1) < 0) {
3411 report("Failed to get parent information");
3414 } else if (parents == 0) {
3416 report("Path '%s' does not exist in the parent", path);
3418 report("The selected commit has no parents");
3423 char prompt[SIZEOF_STR];
3426 if (!string_format(prompt, "Which parent? [1..%d] ", parents))
3428 result = prompt_input(prompt, select_commit_parent_handler, &parents);
3431 parents = atoi(result);
3434 string_copy_rev(rev, &buf[41 * parents]);
3443 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3445 char text[SIZEOF_STR];
3447 if (opt_line_number && draw_lineno(view, lineno))
3450 string_expand(text, sizeof(text), line->data, opt_tab_size);
3451 draw_text(view, line->type, text, TRUE);
3456 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3458 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3459 char refbuf[SIZEOF_STR];
3462 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3463 ref = chomp_string(refbuf);
3468 /* This is the only fatal call, since it can "corrupt" the buffer. */
3469 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3476 add_pager_refs(struct view *view, struct line *line)
3478 char buf[SIZEOF_STR];
3479 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3481 size_t bufpos = 0, refpos = 0;
3482 const char *sep = "Refs: ";
3483 bool is_tag = FALSE;
3485 assert(line->type == LINE_COMMIT);
3487 refs = get_refs(commit_id);
3489 if (view == VIEW(REQ_VIEW_DIFF))
3490 goto try_add_describe_ref;
3495 struct ref *ref = refs[refpos];
3496 const char *fmt = ref->tag ? "%s[%s]" :
3497 ref->remote ? "%s<%s>" : "%s%s";
3499 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3504 } while (refs[refpos++]->next);
3506 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3507 try_add_describe_ref:
3508 /* Add <tag>-g<commit_id> "fake" reference. */
3509 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3516 add_line_text(view, buf, LINE_PP_REFS);
3520 pager_read(struct view *view, char *data)
3527 line = add_line_text(view, data, get_line_type(data));
3531 if (line->type == LINE_COMMIT &&
3532 (view == VIEW(REQ_VIEW_DIFF) ||
3533 view == VIEW(REQ_VIEW_LOG)))
3534 add_pager_refs(view, line);
3540 pager_request(struct view *view, enum request request, struct line *line)
3544 if (request != REQ_ENTER)
3547 if (line->type == LINE_COMMIT &&
3548 (view == VIEW(REQ_VIEW_LOG) ||
3549 view == VIEW(REQ_VIEW_PAGER))) {
3550 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3554 /* Always scroll the view even if it was split. That way
3555 * you can use Enter to scroll through the log view and
3556 * split open each commit diff. */
3557 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3559 /* FIXME: A minor workaround. Scrolling the view will call report("")
3560 * but if we are scrolling a non-current view this won't properly
3561 * update the view title. */
3563 update_view_title(view);
3569 pager_grep(struct view *view, struct line *line)
3572 char *text = line->data;
3577 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3584 pager_select(struct view *view, struct line *line)
3586 if (line->type == LINE_COMMIT) {
3587 char *text = (char *)line->data + STRING_SIZE("commit ");
3589 if (view != VIEW(REQ_VIEW_PAGER))
3590 string_copy_rev(view->ref, text);
3591 string_copy_rev(ref_commit, text);
3595 static struct view_ops pager_ops = {
3606 static const char *log_argv[SIZEOF_ARG] = {
3607 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3611 log_request(struct view *view, enum request request, struct line *line)
3616 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3619 return pager_request(view, request, line);
3623 static struct view_ops log_ops = {
3634 static const char *diff_argv[SIZEOF_ARG] = {
3635 "git", "show", "--pretty=fuller", "--no-color", "--root",
3636 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3639 static struct view_ops diff_ops = {
3655 help_open(struct view *view)
3657 char buf[SIZEOF_STR];
3661 if (view->lines > 0)
3664 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3666 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3669 if (req_info[i].request == REQ_NONE)
3672 if (!req_info[i].request) {
3673 add_line_text(view, "", LINE_DEFAULT);
3674 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3678 key = get_key(req_info[i].request);
3680 key = "(no key defined)";
3682 for (bufpos = 0; bufpos <= req_info[i].namelen; bufpos++) {
3683 buf[bufpos] = tolower(req_info[i].name[bufpos]);
3684 if (buf[bufpos] == '_')
3688 add_line_format(view, LINE_DEFAULT, " %-25s %-20s %s",
3689 key, buf, req_info[i].help);
3693 add_line_text(view, "", LINE_DEFAULT);
3694 add_line_text(view, "External commands:", LINE_DEFAULT);
3697 for (i = 0; i < run_requests; i++) {
3698 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3705 key = get_key_name(req->key);
3707 key = "(no key defined)";
3709 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3710 if (!string_format_from(buf, &bufpos, "%s%s",
3711 argc ? " " : "", req->argv[argc]))
3714 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3715 keymap_table[req->keymap].name, key, buf);
3721 static struct view_ops help_ops = {
3737 struct tree_stack_entry {
3738 struct tree_stack_entry *prev; /* Entry below this in the stack */
3739 unsigned long lineno; /* Line number to restore */
3740 char *name; /* Position of name in opt_path */
3743 /* The top of the path stack. */
3744 static struct tree_stack_entry *tree_stack = NULL;
3745 unsigned long tree_lineno = 0;
3748 pop_tree_stack_entry(void)
3750 struct tree_stack_entry *entry = tree_stack;
3752 tree_lineno = entry->lineno;
3754 tree_stack = entry->prev;
3759 push_tree_stack_entry(const char *name, unsigned long lineno)
3761 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3762 size_t pathlen = strlen(opt_path);
3767 entry->prev = tree_stack;
3768 entry->name = opt_path + pathlen;
3771 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3772 pop_tree_stack_entry();
3776 /* Move the current line to the first tree entry. */
3778 entry->lineno = lineno;
3781 /* Parse output from git-ls-tree(1):
3783 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3786 #define SIZEOF_TREE_ATTR \
3787 STRING_SIZE("100644 blob f931e1d229c3e185caad4449bf5b66ed72462657\t")
3789 #define SIZEOF_TREE_MODE \
3790 STRING_SIZE("100644 ")
3792 #define TREE_ID_OFFSET \
3793 STRING_SIZE("100644 blob ")
3796 char id[SIZEOF_REV];
3798 struct tm time; /* Date from the author ident. */
3799 char author[75]; /* Author of the commit. */
3804 tree_path(struct line *line)
3806 return ((struct tree_entry *) line->data)->name;
3811 tree_compare_entry(struct line *line1, struct line *line2)
3813 if (line1->type != line2->type)
3814 return line1->type == LINE_TREE_DIR ? -1 : 1;
3815 return strcmp(tree_path(line1), tree_path(line2));
3818 static struct line *
3819 tree_entry(struct view *view, enum line_type type, const char *path,
3820 const char *mode, const char *id)
3822 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3823 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3825 if (!entry || !line) {
3830 strncpy(entry->name, path, strlen(path));
3832 entry->mode = strtoul(mode, NULL, 8);
3834 string_copy_rev(entry->id, id);
3840 tree_read_date(struct view *view, char *text, bool *read_date)
3842 static char author_name[SIZEOF_STR];
3843 static struct tm author_time;
3845 if (!text && *read_date) {
3850 char *path = *opt_path ? opt_path : ".";
3851 /* Find next entry to process */
3852 const char *log_file[] = {
3853 "git", "log", "--no-color", "--pretty=raw",
3854 "--cc", "--raw", view->id, "--", path, NULL
3859 tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL);
3860 report("Tree is empty");
3864 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3865 report("Failed to load tree data");
3869 done_io(view->pipe);
3874 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3875 parse_author_line(text + STRING_SIZE("author "),
3876 author_name, sizeof(author_name), &author_time);
3878 } else if (*text == ':') {
3880 size_t annotated = 1;
3883 pos = strchr(text, '\t');
3887 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3888 text += strlen(opt_prefix);
3889 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3890 text += strlen(opt_path);
3891 pos = strchr(text, '/');
3895 for (i = 1; i < view->lines; i++) {
3896 struct line *line = &view->line[i];
3897 struct tree_entry *entry = line->data;
3899 annotated += !!*entry->author;
3900 if (*entry->author || strcmp(entry->name, text))
3903 string_copy(entry->author, author_name);
3904 memcpy(&entry->time, &author_time, sizeof(entry->time));
3909 if (annotated == view->lines)
3910 kill_io(view->pipe);
3916 tree_read(struct view *view, char *text)
3918 static bool read_date = FALSE;
3919 struct tree_entry *data;
3920 struct line *entry, *line;
3921 enum line_type type;
3922 size_t textlen = text ? strlen(text) : 0;
3923 char *path = text + SIZEOF_TREE_ATTR;
3925 if (read_date || !text)
3926 return tree_read_date(view, text, &read_date);
3928 if (textlen <= SIZEOF_TREE_ATTR)
3930 if (view->lines == 0 &&
3931 !tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL))
3934 /* Strip the path part ... */
3936 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3937 size_t striplen = strlen(opt_path);
3939 if (pathlen > striplen)
3940 memmove(path, path + striplen,
3941 pathlen - striplen + 1);
3943 /* Insert "link" to parent directory. */
3944 if (view->lines == 1 &&
3945 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3949 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
3950 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3955 /* Skip "Directory ..." and ".." line. */
3956 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3957 if (tree_compare_entry(line, entry) <= 0)
3960 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3964 for (; line <= entry; line++)
3965 line->dirty = line->cleareol = 1;
3969 if (tree_lineno > view->lineno) {
3970 view->lineno = tree_lineno;
3978 tree_draw(struct view *view, struct line *line, unsigned int lineno)
3980 struct tree_entry *entry = line->data;
3982 if (line->type == LINE_TREE_HEAD) {
3983 if (draw_text(view, line->type, "Directory path /", TRUE))
3986 if (draw_mode(view, entry->mode))
3989 if (opt_author && draw_author(view, entry->author))
3992 if (opt_date && draw_date(view, *entry->author ? &entry->time : NULL))
3995 if (draw_text(view, line->type, entry->name, TRUE))
4003 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
4004 int fd = mkstemp(file);
4007 report("Failed to create temporary file");
4008 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
4009 report("Failed to save blob data to file");
4011 open_editor(FALSE, file);
4017 tree_request(struct view *view, enum request request, struct line *line)
4019 enum open_flags flags;
4022 case REQ_VIEW_BLAME:
4023 if (line->type != LINE_TREE_FILE) {
4024 report("Blame only supported for files");
4028 string_copy(opt_ref, view->vid);
4032 if (line->type != LINE_TREE_FILE) {
4033 report("Edit only supported for files");
4034 } else if (!is_head_commit(view->vid)) {
4037 open_editor(TRUE, opt_file);
4043 /* quit view if at top of tree */
4044 return REQ_VIEW_CLOSE;
4047 line = &view->line[1];
4057 /* Cleanup the stack if the tree view is at a different tree. */
4058 while (!*opt_path && tree_stack)
4059 pop_tree_stack_entry();
4061 switch (line->type) {
4063 /* Depending on whether it is a subdirectory or parent link
4064 * mangle the path buffer. */
4065 if (line == &view->line[1] && *opt_path) {
4066 pop_tree_stack_entry();
4069 const char *basename = tree_path(line);
4071 push_tree_stack_entry(basename, view->lineno);
4074 /* Trees and subtrees share the same ID, so they are not not
4075 * unique like blobs. */
4076 flags = OPEN_RELOAD;
4077 request = REQ_VIEW_TREE;
4080 case LINE_TREE_FILE:
4081 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4082 request = REQ_VIEW_BLOB;
4089 open_view(view, request, flags);
4090 if (request == REQ_VIEW_TREE)
4091 view->lineno = tree_lineno;
4097 tree_select(struct view *view, struct line *line)
4099 struct tree_entry *entry = line->data;
4101 if (line->type == LINE_TREE_FILE) {
4102 string_copy_rev(ref_blob, entry->id);
4103 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4105 } else if (line->type != LINE_TREE_DIR) {
4109 string_copy_rev(view->ref, entry->id);
4112 static const char *tree_argv[SIZEOF_ARG] = {
4113 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4116 static struct view_ops tree_ops = {
4128 blob_read(struct view *view, char *line)
4132 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4136 blob_request(struct view *view, enum request request, struct line *line)
4143 return pager_request(view, request, line);
4147 static const char *blob_argv[SIZEOF_ARG] = {
4148 "git", "cat-file", "blob", "%(blob)", NULL
4151 static struct view_ops blob_ops = {
4165 * Loading the blame view is a two phase job:
4167 * 1. File content is read either using opt_file from the
4168 * filesystem or using git-cat-file.
4169 * 2. Then blame information is incrementally added by
4170 * reading output from git-blame.
4173 static const char *blame_head_argv[] = {
4174 "git", "blame", "--incremental", "--", "%(file)", NULL
4177 static const char *blame_ref_argv[] = {
4178 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4181 static const char *blame_cat_file_argv[] = {
4182 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4185 struct blame_commit {
4186 char id[SIZEOF_REV]; /* SHA1 ID. */
4187 char title[128]; /* First line of the commit message. */
4188 char author[75]; /* Author of the commit. */
4189 struct tm time; /* Date from the author ident. */
4190 char filename[128]; /* Name of file. */
4191 bool has_previous; /* Was a "previous" line detected. */
4195 struct blame_commit *commit;
4196 unsigned long lineno;
4201 blame_open(struct view *view)
4203 if (*opt_ref || !io_open(&view->io, opt_file)) {
4204 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4208 setup_update(view, opt_file);
4209 string_format(view->ref, "%s ...", opt_file);
4214 static struct blame_commit *
4215 get_blame_commit(struct view *view, const char *id)
4219 for (i = 0; i < view->lines; i++) {
4220 struct blame *blame = view->line[i].data;
4225 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4226 return blame->commit;
4230 struct blame_commit *commit = calloc(1, sizeof(*commit));
4233 string_ncopy(commit->id, id, SIZEOF_REV);
4239 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4241 const char *pos = *posref;
4244 pos = strchr(pos + 1, ' ');
4245 if (!pos || !isdigit(pos[1]))
4247 *number = atoi(pos + 1);
4248 if (*number < min || *number > max)
4255 static struct blame_commit *
4256 parse_blame_commit(struct view *view, const char *text, int *blamed)
4258 struct blame_commit *commit;
4259 struct blame *blame;
4260 const char *pos = text + SIZEOF_REV - 2;
4261 size_t orig_lineno = 0;
4265 if (strlen(text) <= SIZEOF_REV || pos[1] != ' ')
4268 if (!parse_number(&pos, &orig_lineno, 1, 9999999) ||
4269 !parse_number(&pos, &lineno, 1, view->lines) ||
4270 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4273 commit = get_blame_commit(view, text);
4279 struct line *line = &view->line[lineno + group - 1];
4282 blame->commit = commit;
4283 blame->lineno = orig_lineno + group - 1;
4291 blame_read_file(struct view *view, const char *line, bool *read_file)
4294 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4297 if (view->lines == 0 && !view->parent)
4298 die("No blame exist for %s", view->vid);
4300 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4301 report("Failed to load blame data");
4305 done_io(view->pipe);
4311 size_t linelen = strlen(line);
4312 struct blame *blame = malloc(sizeof(*blame) + linelen);
4317 blame->commit = NULL;
4318 strncpy(blame->text, line, linelen);
4319 blame->text[linelen] = 0;
4320 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4325 match_blame_header(const char *name, char **line)
4327 size_t namelen = strlen(name);
4328 bool matched = !strncmp(name, *line, namelen);
4337 blame_read(struct view *view, char *line)
4339 static struct blame_commit *commit = NULL;
4340 static int blamed = 0;
4341 static time_t author_time;
4342 static bool read_file = TRUE;
4345 return blame_read_file(view, line, &read_file);
4352 string_format(view->ref, "%s", view->vid);
4353 if (view_is_displayed(view)) {
4354 update_view_title(view);
4355 redraw_view_from(view, 0);
4361 commit = parse_blame_commit(view, line, &blamed);
4362 string_format(view->ref, "%s %2d%%", view->vid,
4363 view->lines ? blamed * 100 / view->lines : 0);
4365 } else if (match_blame_header("author ", &line)) {
4366 string_ncopy(commit->author, line, strlen(line));
4368 } else if (match_blame_header("author-time ", &line)) {
4369 author_time = (time_t) atol(line);
4371 } else if (match_blame_header("author-tz ", &line)) {
4372 parse_timezone(&author_time, line);
4373 gmtime_r(&author_time, &commit->time);
4375 } else if (match_blame_header("summary ", &line)) {
4376 string_ncopy(commit->title, line, strlen(line));
4378 } else if (match_blame_header("previous ", &line)) {
4379 commit->has_previous = TRUE;
4381 } else if (match_blame_header("filename ", &line)) {
4382 string_ncopy(commit->filename, line, strlen(line));
4390 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4392 struct blame *blame = line->data;
4393 struct tm *time = NULL;
4394 const char *id = NULL, *author = NULL;
4395 char text[SIZEOF_STR];
4397 if (blame->commit && *blame->commit->filename) {
4398 id = blame->commit->id;
4399 author = blame->commit->author;
4400 time = &blame->commit->time;
4403 if (opt_date && draw_date(view, time))
4406 if (opt_author && draw_author(view, author))
4409 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4412 if (draw_lineno(view, lineno))
4415 string_expand(text, sizeof(text), blame->text, opt_tab_size);
4416 draw_text(view, LINE_DEFAULT, text, TRUE);
4421 check_blame_commit(struct blame *blame, bool check_null_id)
4424 report("Commit data not loaded yet");
4425 else if (check_null_id && !strcmp(blame->commit->id, NULL_ID))
4426 report("No commit exist for the selected line");
4433 setup_blame_parent_line(struct view *view, struct blame *blame)
4435 const char *diff_tree_argv[] = {
4436 "git", "diff-tree", "-U0", blame->commit->id,
4437 "--", blame->commit->filename, NULL
4440 int parent_lineno = -1;
4441 int blamed_lineno = -1;
4444 if (!run_io(&io, diff_tree_argv, NULL, IO_RD))
4447 while ((line = io_get(&io, '\n', TRUE))) {
4449 char *pos = strchr(line, '+');
4451 parent_lineno = atoi(line + 4);
4453 blamed_lineno = atoi(pos + 1);
4455 } else if (*line == '+' && parent_lineno != -1) {
4456 if (blame->lineno == blamed_lineno - 1 &&
4457 !strcmp(blame->text, line + 1)) {
4458 view->lineno = parent_lineno ? parent_lineno - 1 : 0;
4469 blame_request(struct view *view, enum request request, struct line *line)
4471 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4472 struct blame *blame = line->data;
4475 case REQ_VIEW_BLAME:
4476 if (check_blame_commit(blame, TRUE)) {
4477 string_copy(opt_ref, blame->commit->id);
4478 string_copy(opt_file, blame->commit->filename);
4480 view->lineno = blame->lineno;
4481 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4486 if (check_blame_commit(blame, TRUE) &&
4487 select_commit_parent(blame->commit->id, opt_ref,
4488 blame->commit->filename)) {
4489 string_copy(opt_file, blame->commit->filename);
4490 setup_blame_parent_line(view, blame);
4491 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4496 if (!check_blame_commit(blame, FALSE))
4499 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4500 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4503 if (!strcmp(blame->commit->id, NULL_ID)) {
4504 struct view *diff = VIEW(REQ_VIEW_DIFF);
4505 const char *diff_index_argv[] = {
4506 "git", "diff-index", "--root", "--patch-with-stat",
4507 "-C", "-M", "HEAD", "--", view->vid, NULL
4510 if (!blame->commit->has_previous) {
4511 diff_index_argv[1] = "diff";
4512 diff_index_argv[2] = "--no-color";
4513 diff_index_argv[6] = "--";
4514 diff_index_argv[7] = "/dev/null";
4517 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4518 report("Failed to allocate diff command");
4521 flags |= OPEN_PREPARED;
4524 open_view(view, REQ_VIEW_DIFF, flags);
4525 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4526 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4537 blame_grep(struct view *view, struct line *line)
4539 struct blame *blame = line->data;
4540 struct blame_commit *commit = blame->commit;
4543 #define MATCH(text, on) \
4544 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4547 char buf[DATE_COLS + 1];
4549 if (MATCH(commit->title, 1) ||
4550 MATCH(commit->author, opt_author) ||
4551 MATCH(commit->id, opt_date))
4554 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4559 return MATCH(blame->text, 1);
4565 blame_select(struct view *view, struct line *line)
4567 struct blame *blame = line->data;
4568 struct blame_commit *commit = blame->commit;
4573 if (!strcmp(commit->id, NULL_ID))
4574 string_ncopy(ref_commit, "HEAD", 4);
4576 string_copy_rev(ref_commit, commit->id);
4579 static struct view_ops blame_ops = {
4598 char rev[SIZEOF_REV];
4599 char name[SIZEOF_STR];
4603 char rev[SIZEOF_REV];
4604 char name[SIZEOF_STR];
4608 static char status_onbranch[SIZEOF_STR];
4609 static struct status stage_status;
4610 static enum line_type stage_line_type;
4611 static size_t stage_chunks;
4612 static int *stage_chunk;
4614 /* This should work even for the "On branch" line. */
4616 status_has_none(struct view *view, struct line *line)
4618 return line < view->line + view->lines && !line[1].data;
4621 /* Get fields from the diff line:
4622 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4625 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4627 const char *old_mode = buf + 1;
4628 const char *new_mode = buf + 8;
4629 const char *old_rev = buf + 15;
4630 const char *new_rev = buf + 56;
4631 const char *status = buf + 97;
4634 old_mode[-1] != ':' ||
4635 new_mode[-1] != ' ' ||
4636 old_rev[-1] != ' ' ||
4637 new_rev[-1] != ' ' ||
4641 file->status = *status;
4643 string_copy_rev(file->old.rev, old_rev);
4644 string_copy_rev(file->new.rev, new_rev);
4646 file->old.mode = strtoul(old_mode, NULL, 8);
4647 file->new.mode = strtoul(new_mode, NULL, 8);
4649 file->old.name[0] = file->new.name[0] = 0;
4655 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4657 struct status *unmerged = NULL;
4661 if (!run_io(&io, argv, NULL, IO_RD))
4664 add_line_data(view, NULL, type);
4666 while ((buf = io_get(&io, 0, TRUE))) {
4667 struct status *file = unmerged;
4670 file = calloc(1, sizeof(*file));
4671 if (!file || !add_line_data(view, file, type))
4675 /* Parse diff info part. */
4677 file->status = status;
4679 string_copy(file->old.rev, NULL_ID);
4681 } else if (!file->status || file == unmerged) {
4682 if (!status_get_diff(file, buf, strlen(buf)))
4685 buf = io_get(&io, 0, TRUE);
4689 /* Collapse all modified entries that follow an
4690 * associated unmerged entry. */
4691 if (unmerged == file) {
4692 unmerged->status = 'U';
4694 } else if (file->status == 'U') {
4699 /* Grab the old name for rename/copy. */
4700 if (!*file->old.name &&
4701 (file->status == 'R' || file->status == 'C')) {
4702 string_ncopy(file->old.name, buf, strlen(buf));
4704 buf = io_get(&io, 0, TRUE);
4709 /* git-ls-files just delivers a NUL separated list of
4710 * file names similar to the second half of the
4711 * git-diff-* output. */
4712 string_ncopy(file->new.name, buf, strlen(buf));
4713 if (!*file->old.name)
4714 string_copy(file->old.name, file->new.name);
4718 if (io_error(&io)) {
4724 if (!view->line[view->lines - 1].data)
4725 add_line_data(view, NULL, LINE_STAT_NONE);
4731 /* Don't show unmerged entries in the staged section. */
4732 static const char *status_diff_index_argv[] = {
4733 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4734 "--cached", "-M", "HEAD", NULL
4737 static const char *status_diff_files_argv[] = {
4738 "git", "diff-files", "-z", NULL
4741 static const char *status_list_other_argv[] = {
4742 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4745 static const char *status_list_no_head_argv[] = {
4746 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4749 static const char *update_index_argv[] = {
4750 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4753 /* Restore the previous line number to stay in the context or select a
4754 * line with something that can be updated. */
4756 status_restore(struct view *view)
4758 if (view->p_lineno >= view->lines)
4759 view->p_lineno = view->lines - 1;
4760 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4762 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4765 /* If the above fails, always skip the "On branch" line. */
4766 if (view->p_lineno < view->lines)
4767 view->lineno = view->p_lineno;
4771 if (view->lineno < view->offset)
4772 view->offset = view->lineno;
4773 else if (view->offset + view->height <= view->lineno)
4774 view->offset = view->lineno - view->height + 1;
4776 view->p_restore = FALSE;
4780 status_update_onbranch(void)
4782 static const char *paths[][2] = {
4783 { "rebase-apply/rebasing", "Rebasing" },
4784 { "rebase-apply/applying", "Applying mailbox" },
4785 { "rebase-apply/", "Rebasing mailbox" },
4786 { "rebase-merge/interactive", "Interactive rebase" },
4787 { "rebase-merge/", "Rebase merge" },
4788 { "MERGE_HEAD", "Merging" },
4789 { "BISECT_LOG", "Bisecting" },
4790 { "HEAD", "On branch" },
4792 char buf[SIZEOF_STR];
4796 if (is_initial_commit()) {
4797 string_copy(status_onbranch, "Initial commit");
4801 for (i = 0; i < ARRAY_SIZE(paths); i++) {
4802 char *head = opt_head;
4804 if (!string_format(buf, "%s/%s", opt_git_dir, paths[i][0]) ||
4805 lstat(buf, &stat) < 0)
4811 if (string_format(buf, "%s/rebase-merge/head-name", opt_git_dir) &&
4812 io_open(&io, buf) &&
4813 io_read_buf(&io, buf, sizeof(buf))) {
4814 head = chomp_string(buf);
4815 if (!prefixcmp(head, "refs/heads/"))
4816 head += STRING_SIZE("refs/heads/");
4820 if (!string_format(status_onbranch, "%s %s", paths[i][1], head))
4821 string_copy(status_onbranch, opt_head);
4825 string_copy(status_onbranch, "Not currently on any branch");
4828 /* First parse staged info using git-diff-index(1), then parse unstaged
4829 * info using git-diff-files(1), and finally untracked files using
4830 * git-ls-files(1). */
4832 status_open(struct view *view)
4836 add_line_data(view, NULL, LINE_STAT_HEAD);
4837 status_update_onbranch();
4839 run_io_bg(update_index_argv);
4841 if (is_initial_commit()) {
4842 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4844 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4848 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4849 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4852 /* Restore the exact position or use the specialized restore
4854 if (!view->p_restore)
4855 status_restore(view);
4860 status_draw(struct view *view, struct line *line, unsigned int lineno)
4862 struct status *status = line->data;
4863 enum line_type type;
4867 switch (line->type) {
4868 case LINE_STAT_STAGED:
4869 type = LINE_STAT_SECTION;
4870 text = "Changes to be committed:";
4873 case LINE_STAT_UNSTAGED:
4874 type = LINE_STAT_SECTION;
4875 text = "Changed but not updated:";
4878 case LINE_STAT_UNTRACKED:
4879 type = LINE_STAT_SECTION;
4880 text = "Untracked files:";
4883 case LINE_STAT_NONE:
4884 type = LINE_DEFAULT;
4885 text = " (no files)";
4888 case LINE_STAT_HEAD:
4889 type = LINE_STAT_HEAD;
4890 text = status_onbranch;
4897 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4899 buf[0] = status->status;
4900 if (draw_text(view, line->type, buf, TRUE))
4902 type = LINE_DEFAULT;
4903 text = status->new.name;
4906 draw_text(view, type, text, TRUE);
4911 status_load_error(struct view *view, struct view *stage, const char *path)
4913 if (displayed_views() == 2 || display[current_view] != view)
4914 maximize_view(view);
4915 report("Failed to load '%s': %s", path, io_strerror(&stage->io));
4920 status_enter(struct view *view, struct line *line)
4922 struct status *status = line->data;
4923 const char *oldpath = status ? status->old.name : NULL;
4924 /* Diffs for unmerged entries are empty when passing the new
4925 * path, so leave it empty. */
4926 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4928 enum open_flags split;
4929 struct view *stage = VIEW(REQ_VIEW_STAGE);
4931 if (line->type == LINE_STAT_NONE ||
4932 (!status && line[1].type == LINE_STAT_NONE)) {
4933 report("No file to diff");
4937 switch (line->type) {
4938 case LINE_STAT_STAGED:
4939 if (is_initial_commit()) {
4940 const char *no_head_diff_argv[] = {
4941 "git", "diff", "--no-color", "--patch-with-stat",
4942 "--", "/dev/null", newpath, NULL
4945 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4946 return status_load_error(view, stage, newpath);
4948 const char *index_show_argv[] = {
4949 "git", "diff-index", "--root", "--patch-with-stat",
4950 "-C", "-M", "--cached", "HEAD", "--",
4951 oldpath, newpath, NULL
4954 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4955 return status_load_error(view, stage, newpath);
4959 info = "Staged changes to %s";
4961 info = "Staged changes";
4964 case LINE_STAT_UNSTAGED:
4966 const char *files_show_argv[] = {
4967 "git", "diff-files", "--root", "--patch-with-stat",
4968 "-C", "-M", "--", oldpath, newpath, NULL
4971 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4972 return status_load_error(view, stage, newpath);
4974 info = "Unstaged changes to %s";
4976 info = "Unstaged changes";
4979 case LINE_STAT_UNTRACKED:
4981 report("No file to show");
4985 if (!suffixcmp(status->new.name, -1, "/")) {
4986 report("Cannot display a directory");
4990 if (!prepare_update_file(stage, newpath))
4991 return status_load_error(view, stage, newpath);
4992 info = "Untracked file %s";
4995 case LINE_STAT_HEAD:
4999 die("line type %d not handled in switch", line->type);
5002 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
5003 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
5004 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
5006 stage_status = *status;
5008 memset(&stage_status, 0, sizeof(stage_status));
5011 stage_line_type = line->type;
5013 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
5020 status_exists(struct status *status, enum line_type type)
5022 struct view *view = VIEW(REQ_VIEW_STATUS);
5023 unsigned long lineno;
5025 for (lineno = 0; lineno < view->lines; lineno++) {
5026 struct line *line = &view->line[lineno];
5027 struct status *pos = line->data;
5029 if (line->type != type)
5031 if (!pos && (!status || !status->status) && line[1].data) {
5032 select_view_line(view, lineno);
5035 if (pos && !strcmp(status->new.name, pos->new.name)) {
5036 select_view_line(view, lineno);
5046 status_update_prepare(struct io *io, enum line_type type)
5048 const char *staged_argv[] = {
5049 "git", "update-index", "-z", "--index-info", NULL
5051 const char *others_argv[] = {
5052 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
5056 case LINE_STAT_STAGED:
5057 return run_io(io, staged_argv, opt_cdup, IO_WR);
5059 case LINE_STAT_UNSTAGED:
5060 return run_io(io, others_argv, opt_cdup, IO_WR);
5062 case LINE_STAT_UNTRACKED:
5063 return run_io(io, others_argv, NULL, IO_WR);
5066 die("line type %d not handled in switch", type);
5072 status_update_write(struct io *io, struct status *status, enum line_type type)
5074 char buf[SIZEOF_STR];
5078 case LINE_STAT_STAGED:
5079 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
5082 status->old.name, 0))
5086 case LINE_STAT_UNSTAGED:
5087 case LINE_STAT_UNTRACKED:
5088 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
5093 die("line type %d not handled in switch", type);
5096 return io_write(io, buf, bufsize);
5100 status_update_file(struct status *status, enum line_type type)
5105 if (!status_update_prepare(&io, type))
5108 result = status_update_write(&io, status, type);
5109 return done_io(&io) && result;
5113 status_update_files(struct view *view, struct line *line)
5115 char buf[sizeof(view->ref)];
5118 struct line *pos = view->line + view->lines;
5121 int cursor_y, cursor_x;
5123 if (!status_update_prepare(&io, line->type))
5126 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5129 string_copy(buf, view->ref);
5130 getsyx(cursor_y, cursor_x);
5131 for (file = 0, done = 5; result && file < files; line++, file++) {
5132 int almost_done = file * 100 / files;
5134 if (almost_done > done) {
5136 string_format(view->ref, "updating file %u of %u (%d%% done)",
5138 update_view_title(view);
5139 setsyx(cursor_y, cursor_x);
5142 result = status_update_write(&io, line->data, line->type);
5144 string_copy(view->ref, buf);
5146 return done_io(&io) && result;
5150 status_update(struct view *view)
5152 struct line *line = &view->line[view->lineno];
5154 assert(view->lines);
5157 /* This should work even for the "On branch" line. */
5158 if (line < view->line + view->lines && !line[1].data) {
5159 report("Nothing to update");
5163 if (!status_update_files(view, line + 1)) {
5164 report("Failed to update file status");
5168 } else if (!status_update_file(line->data, line->type)) {
5169 report("Failed to update file status");
5177 status_revert(struct status *status, enum line_type type, bool has_none)
5179 if (!status || type != LINE_STAT_UNSTAGED) {
5180 if (type == LINE_STAT_STAGED) {
5181 report("Cannot revert changes to staged files");
5182 } else if (type == LINE_STAT_UNTRACKED) {
5183 report("Cannot revert changes to untracked files");
5184 } else if (has_none) {
5185 report("Nothing to revert");
5187 report("Cannot revert changes to multiple files");
5192 char mode[10] = "100644";
5193 const char *reset_argv[] = {
5194 "git", "update-index", "--cacheinfo", mode,
5195 status->old.rev, status->old.name, NULL
5197 const char *checkout_argv[] = {
5198 "git", "checkout", "--", status->old.name, NULL
5201 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5203 string_format(mode, "%o", status->old.mode);
5204 return (status->status != 'U' || run_io_fg(reset_argv, opt_cdup)) &&
5205 run_io_fg(checkout_argv, opt_cdup);
5210 status_request(struct view *view, enum request request, struct line *line)
5212 struct status *status = line->data;
5215 case REQ_STATUS_UPDATE:
5216 if (!status_update(view))
5220 case REQ_STATUS_REVERT:
5221 if (!status_revert(status, line->type, status_has_none(view, line)))
5225 case REQ_STATUS_MERGE:
5226 if (!status || status->status != 'U') {
5227 report("Merging only possible for files with unmerged status ('U').");
5230 open_mergetool(status->new.name);
5236 if (status->status == 'D') {
5237 report("File has been deleted.");
5241 open_editor(status->status != '?', status->new.name);
5244 case REQ_VIEW_BLAME:
5246 string_copy(opt_file, status->new.name);
5252 /* After returning the status view has been split to
5253 * show the stage view. No further reloading is
5255 return status_enter(view, line);
5258 /* Simply reload the view. */
5265 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5271 status_select(struct view *view, struct line *line)
5273 struct status *status = line->data;
5274 char file[SIZEOF_STR] = "all files";
5278 if (status && !string_format(file, "'%s'", status->new.name))
5281 if (!status && line[1].type == LINE_STAT_NONE)
5284 switch (line->type) {
5285 case LINE_STAT_STAGED:
5286 text = "Press %s to unstage %s for commit";
5289 case LINE_STAT_UNSTAGED:
5290 text = "Press %s to stage %s for commit";
5293 case LINE_STAT_UNTRACKED:
5294 text = "Press %s to stage %s for addition";
5297 case LINE_STAT_HEAD:
5298 case LINE_STAT_NONE:
5299 text = "Nothing to update";
5303 die("line type %d not handled in switch", line->type);
5306 if (status && status->status == 'U') {
5307 text = "Press %s to resolve conflict in %s";
5308 key = get_key(REQ_STATUS_MERGE);
5311 key = get_key(REQ_STATUS_UPDATE);
5314 string_format(view->ref, text, key, file);
5318 status_grep(struct view *view, struct line *line)
5320 struct status *status = line->data;
5321 enum { S_STATUS, S_NAME, S_END } state;
5328 for (state = S_STATUS; state < S_END; state++) {
5332 case S_NAME: text = status->new.name; break;
5334 buf[0] = status->status;
5342 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5349 static struct view_ops status_ops = {
5362 stage_diff_write(struct io *io, struct line *line, struct line *end)
5364 while (line < end) {
5365 if (!io_write(io, line->data, strlen(line->data)) ||
5366 !io_write(io, "\n", 1))
5369 if (line->type == LINE_DIFF_CHUNK ||
5370 line->type == LINE_DIFF_HEADER)
5377 static struct line *
5378 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5380 for (; view->line < line; line--)
5381 if (line->type == type)
5388 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5390 const char *apply_argv[SIZEOF_ARG] = {
5391 "git", "apply", "--whitespace=nowarn", NULL
5393 struct line *diff_hdr;
5397 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5402 apply_argv[argc++] = "--cached";
5403 if (revert || stage_line_type == LINE_STAT_STAGED)
5404 apply_argv[argc++] = "-R";
5405 apply_argv[argc++] = "-";
5406 apply_argv[argc++] = NULL;
5407 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5410 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5411 !stage_diff_write(&io, chunk, view->line + view->lines))
5415 run_io_bg(update_index_argv);
5417 return chunk ? TRUE : FALSE;
5421 stage_update(struct view *view, struct line *line)
5423 struct line *chunk = NULL;
5425 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5426 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5429 if (!stage_apply_chunk(view, chunk, FALSE)) {
5430 report("Failed to apply chunk");
5434 } else if (!stage_status.status) {
5435 view = VIEW(REQ_VIEW_STATUS);
5437 for (line = view->line; line < view->line + view->lines; line++)
5438 if (line->type == stage_line_type)
5441 if (!status_update_files(view, line + 1)) {
5442 report("Failed to update files");
5446 } else if (!status_update_file(&stage_status, stage_line_type)) {
5447 report("Failed to update file");
5455 stage_revert(struct view *view, struct line *line)
5457 struct line *chunk = NULL;
5459 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5460 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5463 if (!prompt_yesno("Are you sure you want to revert changes?"))
5466 if (!stage_apply_chunk(view, chunk, TRUE)) {
5467 report("Failed to revert chunk");
5473 return status_revert(stage_status.status ? &stage_status : NULL,
5474 stage_line_type, FALSE);
5480 stage_next(struct view *view, struct line *line)
5484 if (!stage_chunks) {
5485 static size_t alloc = 0;
5488 for (line = view->line; line < view->line + view->lines; line++) {
5489 if (line->type != LINE_DIFF_CHUNK)
5492 tmp = realloc_items(stage_chunk, &alloc,
5493 stage_chunks, sizeof(*tmp));
5495 report("Allocation failure");
5500 stage_chunk[stage_chunks++] = line - view->line;
5504 for (i = 0; i < stage_chunks; i++) {
5505 if (stage_chunk[i] > view->lineno) {
5506 do_scroll_view(view, stage_chunk[i] - view->lineno);
5507 report("Chunk %d of %d", i + 1, stage_chunks);
5512 report("No next chunk found");
5516 stage_request(struct view *view, enum request request, struct line *line)
5519 case REQ_STATUS_UPDATE:
5520 if (!stage_update(view, line))
5524 case REQ_STATUS_REVERT:
5525 if (!stage_revert(view, line))
5529 case REQ_STAGE_NEXT:
5530 if (stage_line_type == LINE_STAT_UNTRACKED) {
5531 report("File is untracked; press %s to add",
5532 get_key(REQ_STATUS_UPDATE));
5535 stage_next(view, line);
5539 if (!stage_status.new.name[0])
5541 if (stage_status.status == 'D') {
5542 report("File has been deleted.");
5546 open_editor(stage_status.status != '?', stage_status.new.name);
5550 /* Reload everything ... */
5553 case REQ_VIEW_BLAME:
5554 if (stage_status.new.name[0]) {
5555 string_copy(opt_file, stage_status.new.name);
5561 return pager_request(view, request, line);
5567 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5568 open_view(view, REQ_VIEW_STATUS, OPEN_REFRESH);
5570 /* Check whether the staged entry still exists, and close the
5571 * stage view if it doesn't. */
5572 if (!status_exists(&stage_status, stage_line_type)) {
5573 status_restore(VIEW(REQ_VIEW_STATUS));
5574 return REQ_VIEW_CLOSE;
5577 if (stage_line_type == LINE_STAT_UNTRACKED) {
5578 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5579 report("Cannot display a directory");
5583 if (!prepare_update_file(view, stage_status.new.name)) {
5584 report("Failed to open file: %s", strerror(errno));
5588 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5593 static struct view_ops stage_ops = {
5610 char id[SIZEOF_REV]; /* SHA1 ID. */
5611 char title[128]; /* First line of the commit message. */
5612 char author[75]; /* Author of the commit. */
5613 struct tm time; /* Date from the author ident. */
5614 struct ref **refs; /* Repository references. */
5615 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5616 size_t graph_size; /* The width of the graph array. */
5617 bool has_parents; /* Rewritten --parents seen. */
5620 /* Size of rev graph with no "padding" columns */
5621 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5624 struct rev_graph *prev, *next, *parents;
5625 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5627 struct commit *commit;
5629 unsigned int boundary:1;
5632 /* Parents of the commit being visualized. */
5633 static struct rev_graph graph_parents[4];
5635 /* The current stack of revisions on the graph. */
5636 static struct rev_graph graph_stacks[4] = {
5637 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5638 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5639 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5640 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5644 graph_parent_is_merge(struct rev_graph *graph)
5646 return graph->parents->size > 1;
5650 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5652 struct commit *commit = graph->commit;
5654 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5655 commit->graph[commit->graph_size++] = symbol;
5659 clear_rev_graph(struct rev_graph *graph)
5661 graph->boundary = 0;
5662 graph->size = graph->pos = 0;
5663 graph->commit = NULL;
5664 memset(graph->parents, 0, sizeof(*graph->parents));
5668 done_rev_graph(struct rev_graph *graph)
5670 if (graph_parent_is_merge(graph) &&
5671 graph->pos < graph->size - 1 &&
5672 graph->next->size == graph->size + graph->parents->size - 1) {
5673 size_t i = graph->pos + graph->parents->size - 1;
5675 graph->commit->graph_size = i * 2;
5676 while (i < graph->next->size - 1) {
5677 append_to_rev_graph(graph, ' ');
5678 append_to_rev_graph(graph, '\\');
5683 clear_rev_graph(graph);
5687 push_rev_graph(struct rev_graph *graph, const char *parent)
5691 /* "Collapse" duplicate parents lines.
5693 * FIXME: This needs to also update update the drawn graph but
5694 * for now it just serves as a method for pruning graph lines. */
5695 for (i = 0; i < graph->size; i++)
5696 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5699 if (graph->size < SIZEOF_REVITEMS) {
5700 string_copy_rev(graph->rev[graph->size++], parent);
5705 get_rev_graph_symbol(struct rev_graph *graph)
5709 if (graph->boundary)
5710 symbol = REVGRAPH_BOUND;
5711 else if (graph->parents->size == 0)
5712 symbol = REVGRAPH_INIT;
5713 else if (graph_parent_is_merge(graph))
5714 symbol = REVGRAPH_MERGE;
5715 else if (graph->pos >= graph->size)
5716 symbol = REVGRAPH_BRANCH;
5718 symbol = REVGRAPH_COMMIT;
5724 draw_rev_graph(struct rev_graph *graph)
5727 chtype separator, line;
5729 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5730 static struct rev_filler fillers[] = {
5736 chtype symbol = get_rev_graph_symbol(graph);
5737 struct rev_filler *filler;
5740 if (opt_line_graphics)
5741 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5743 filler = &fillers[DEFAULT];
5745 for (i = 0; i < graph->pos; i++) {
5746 append_to_rev_graph(graph, filler->line);
5747 if (graph_parent_is_merge(graph->prev) &&
5748 graph->prev->pos == i)
5749 filler = &fillers[RSHARP];
5751 append_to_rev_graph(graph, filler->separator);
5754 /* Place the symbol for this revision. */
5755 append_to_rev_graph(graph, symbol);
5757 if (graph->prev->size > graph->size)
5758 filler = &fillers[RDIAG];
5760 filler = &fillers[DEFAULT];
5764 for (; i < graph->size; i++) {
5765 append_to_rev_graph(graph, filler->separator);
5766 append_to_rev_graph(graph, filler->line);
5767 if (graph_parent_is_merge(graph->prev) &&
5768 i < graph->prev->pos + graph->parents->size)
5769 filler = &fillers[RSHARP];
5770 if (graph->prev->size > graph->size)
5771 filler = &fillers[LDIAG];
5774 if (graph->prev->size > graph->size) {
5775 append_to_rev_graph(graph, filler->separator);
5776 if (filler->line != ' ')
5777 append_to_rev_graph(graph, filler->line);
5781 /* Prepare the next rev graph */
5783 prepare_rev_graph(struct rev_graph *graph)
5787 /* First, traverse all lines of revisions up to the active one. */
5788 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5789 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5792 push_rev_graph(graph->next, graph->rev[graph->pos]);
5795 /* Interleave the new revision parent(s). */
5796 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5797 push_rev_graph(graph->next, graph->parents->rev[i]);
5799 /* Lastly, put any remaining revisions. */
5800 for (i = graph->pos + 1; i < graph->size; i++)
5801 push_rev_graph(graph->next, graph->rev[i]);
5805 update_rev_graph(struct view *view, struct rev_graph *graph)
5807 /* If this is the finalizing update ... */
5809 prepare_rev_graph(graph);
5811 /* Graph visualization needs a one rev look-ahead,
5812 * so the first update doesn't visualize anything. */
5813 if (!graph->prev->commit)
5816 if (view->lines > 2)
5817 view->line[view->lines - 3].dirty = 1;
5818 if (view->lines > 1)
5819 view->line[view->lines - 2].dirty = 1;
5820 draw_rev_graph(graph->prev);
5821 done_rev_graph(graph->prev->prev);
5829 static const char *main_argv[SIZEOF_ARG] = {
5830 "git", "log", "--no-color", "--pretty=raw", "--parents",
5831 "--topo-order", "%(head)", NULL
5835 main_draw(struct view *view, struct line *line, unsigned int lineno)
5837 struct commit *commit = line->data;
5839 if (!*commit->author)
5842 if (opt_date && draw_date(view, &commit->time))
5845 if (opt_author && draw_author(view, commit->author))
5848 if (opt_rev_graph && commit->graph_size &&
5849 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5852 if (opt_show_refs && commit->refs) {
5856 enum line_type type;
5858 if (commit->refs[i]->head)
5859 type = LINE_MAIN_HEAD;
5860 else if (commit->refs[i]->ltag)
5861 type = LINE_MAIN_LOCAL_TAG;
5862 else if (commit->refs[i]->tag)
5863 type = LINE_MAIN_TAG;
5864 else if (commit->refs[i]->tracked)
5865 type = LINE_MAIN_TRACKED;
5866 else if (commit->refs[i]->remote)
5867 type = LINE_MAIN_REMOTE;
5869 type = LINE_MAIN_REF;
5871 if (draw_text(view, type, "[", TRUE) ||
5872 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5873 draw_text(view, type, "]", TRUE))
5876 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5878 } while (commit->refs[i++]->next);
5881 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5885 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5887 main_read(struct view *view, char *line)
5889 static struct rev_graph *graph = graph_stacks;
5890 enum line_type type;
5891 struct commit *commit;
5896 if (!view->lines && !view->parent)
5897 die("No revisions match the given arguments.");
5898 if (view->lines > 0) {
5899 commit = view->line[view->lines - 1].data;
5900 view->line[view->lines - 1].dirty = 1;
5901 if (!*commit->author) {
5904 graph->commit = NULL;
5907 update_rev_graph(view, graph);
5909 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5910 clear_rev_graph(&graph_stacks[i]);
5914 type = get_line_type(line);
5915 if (type == LINE_COMMIT) {
5916 commit = calloc(1, sizeof(struct commit));
5920 line += STRING_SIZE("commit ");
5922 graph->boundary = 1;
5926 string_copy_rev(commit->id, line);
5927 commit->refs = get_refs(commit->id);
5928 graph->commit = commit;
5929 add_line_data(view, commit, LINE_MAIN_COMMIT);
5931 while ((line = strchr(line, ' '))) {
5933 push_rev_graph(graph->parents, line);
5934 commit->has_parents = TRUE;
5941 commit = view->line[view->lines - 1].data;
5945 if (commit->has_parents)
5947 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5951 parse_author_line(line + STRING_SIZE("author "),
5952 commit->author, sizeof(commit->author),
5954 update_rev_graph(view, graph);
5955 graph = graph->next;
5959 /* Fill in the commit title if it has not already been set. */
5960 if (commit->title[0])
5963 /* Require titles to start with a non-space character at the
5964 * offset used by git log. */
5965 if (strncmp(line, " ", 4))
5968 /* Well, if the title starts with a whitespace character,
5969 * try to be forgiving. Otherwise we end up with no title. */
5970 while (isspace(*line))
5974 /* FIXME: More graceful handling of titles; append "..." to
5975 * shortened titles, etc. */
5977 string_expand(commit->title, sizeof(commit->title), line, 1);
5978 view->line[view->lines - 1].dirty = 1;
5985 main_request(struct view *view, enum request request, struct line *line)
5987 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5991 open_view(view, REQ_VIEW_DIFF, flags);
5995 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
6005 grep_refs(struct ref **refs, regex_t *regex)
6013 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
6015 } while (refs[i++]->next);
6021 main_grep(struct view *view, struct line *line)
6023 struct commit *commit = line->data;
6024 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
6025 char buf[DATE_COLS + 1];
6028 for (state = S_TITLE; state < S_END; state++) {
6032 case S_TITLE: text = commit->title; break;
6036 text = commit->author;
6041 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
6048 if (grep_refs(commit->refs, view->regex) == TRUE)
6055 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
6063 main_select(struct view *view, struct line *line)
6065 struct commit *commit = line->data;
6067 string_copy_rev(view->ref, commit->id);
6068 string_copy_rev(ref_commit, view->ref);
6071 static struct view_ops main_ops = {
6084 * Unicode / UTF-8 handling
6086 * NOTE: Much of the following code for dealing with Unicode is derived from
6087 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
6088 * src/intl/charset.c from the UTF-8 branch commit elinks-0.11.0-g31f2c28.
6092 unicode_width(unsigned long c)
6095 (c <= 0x115f /* Hangul Jamo */
6098 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
6100 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
6101 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
6102 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
6103 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
6104 || (c >= 0xffe0 && c <= 0xffe6)
6105 || (c >= 0x20000 && c <= 0x2fffd)
6106 || (c >= 0x30000 && c <= 0x3fffd)))
6110 return opt_tab_size;
6115 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
6116 * Illegal bytes are set one. */
6117 static const unsigned char utf8_bytes[256] = {
6118 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,
6119 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,
6120 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,
6121 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,
6122 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
6123 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
6124 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,
6125 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,
6128 /* Decode UTF-8 multi-byte representation into a Unicode character. */
6129 static inline unsigned long
6130 utf8_to_unicode(const char *string, size_t length)
6132 unsigned long unicode;
6136 unicode = string[0];
6139 unicode = (string[0] & 0x1f) << 6;
6140 unicode += (string[1] & 0x3f);
6143 unicode = (string[0] & 0x0f) << 12;
6144 unicode += ((string[1] & 0x3f) << 6);
6145 unicode += (string[2] & 0x3f);
6148 unicode = (string[0] & 0x0f) << 18;
6149 unicode += ((string[1] & 0x3f) << 12);
6150 unicode += ((string[2] & 0x3f) << 6);
6151 unicode += (string[3] & 0x3f);
6154 unicode = (string[0] & 0x0f) << 24;
6155 unicode += ((string[1] & 0x3f) << 18);
6156 unicode += ((string[2] & 0x3f) << 12);
6157 unicode += ((string[3] & 0x3f) << 6);
6158 unicode += (string[4] & 0x3f);
6161 unicode = (string[0] & 0x01) << 30;
6162 unicode += ((string[1] & 0x3f) << 24);
6163 unicode += ((string[2] & 0x3f) << 18);
6164 unicode += ((string[3] & 0x3f) << 12);
6165 unicode += ((string[4] & 0x3f) << 6);
6166 unicode += (string[5] & 0x3f);
6169 die("Invalid Unicode length");
6172 /* Invalid characters could return the special 0xfffd value but NUL
6173 * should be just as good. */
6174 return unicode > 0xffff ? 0 : unicode;
6177 /* Calculates how much of string can be shown within the given maximum width
6178 * and sets trimmed parameter to non-zero value if all of string could not be
6179 * shown. If the reserve flag is TRUE, it will reserve at least one
6180 * trailing character, which can be useful when drawing a delimiter.
6182 * Returns the number of bytes to output from string to satisfy max_width. */
6184 utf8_length(const char **start, size_t skip, int *width, size_t max_width, int *trimmed, bool reserve)
6186 const char *string = *start;
6187 const char *end = strchr(string, '\0');
6188 unsigned char last_bytes = 0;
6189 size_t last_ucwidth = 0;
6194 while (string < end) {
6195 int c = *(unsigned char *) string;
6196 unsigned char bytes = utf8_bytes[c];
6198 unsigned long unicode;
6200 if (string + bytes > end)
6203 /* Change representation to figure out whether
6204 * it is a single- or double-width character. */
6206 unicode = utf8_to_unicode(string, bytes);
6207 /* FIXME: Graceful handling of invalid Unicode character. */
6211 ucwidth = unicode_width(unicode);
6213 skip -= ucwidth <= skip ? ucwidth : skip;
6217 if (*width > max_width) {
6220 if (reserve && *width == max_width) {
6221 string -= last_bytes;
6222 *width -= last_ucwidth;
6228 last_bytes = ucwidth ? bytes : 0;
6229 last_ucwidth = ucwidth;
6232 return string - *start;
6240 /* Whether or not the curses interface has been initialized. */
6241 static bool cursed = FALSE;
6243 /* Terminal hacks and workarounds. */
6244 static bool use_scroll_redrawwin;
6245 static bool use_scroll_status_wclear;
6247 /* The status window is used for polling keystrokes. */
6248 static WINDOW *status_win;
6250 /* Reading from the prompt? */
6251 static bool input_mode = FALSE;
6253 static bool status_empty = FALSE;
6255 /* Update status and title window. */
6257 report(const char *msg, ...)
6259 struct view *view = display[current_view];
6265 char buf[SIZEOF_STR];
6268 va_start(args, msg);
6269 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6270 buf[sizeof(buf) - 1] = 0;
6271 buf[sizeof(buf) - 2] = '.';
6272 buf[sizeof(buf) - 3] = '.';
6273 buf[sizeof(buf) - 4] = '.';
6279 if (!status_empty || *msg) {
6282 va_start(args, msg);
6284 wmove(status_win, 0, 0);
6285 if (view->has_scrolled && use_scroll_status_wclear)
6288 vwprintw(status_win, msg, args);
6289 status_empty = FALSE;
6291 status_empty = TRUE;
6293 wclrtoeol(status_win);
6294 wnoutrefresh(status_win);
6299 update_view_title(view);
6302 /* Controls when nodelay should be in effect when polling user input. */
6304 set_nonblocking_input(bool loading)
6306 static unsigned int loading_views;
6308 if ((loading == FALSE && loading_views-- == 1) ||
6309 (loading == TRUE && loading_views++ == 0))
6310 nodelay(status_win, loading);
6319 /* Initialize the curses library */
6320 if (isatty(STDIN_FILENO)) {
6321 cursed = !!initscr();
6324 /* Leave stdin and stdout alone when acting as a pager. */
6325 opt_tty = fopen("/dev/tty", "r+");
6327 die("Failed to open /dev/tty");
6328 cursed = !!newterm(NULL, opt_tty, opt_tty);
6332 die("Failed to initialize curses");
6334 nonl(); /* Disable conversion and detect newlines from input. */
6335 cbreak(); /* Take input chars one at a time, no wait for \n */
6336 noecho(); /* Don't echo input */
6337 leaveok(stdscr, FALSE);
6342 getmaxyx(stdscr, y, x);
6343 status_win = newwin(1, 0, y - 1, 0);
6345 die("Failed to create status window");
6347 /* Enable keyboard mapping */
6348 keypad(status_win, TRUE);
6349 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6351 TABSIZE = opt_tab_size;
6352 if (opt_line_graphics) {
6353 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6356 term = getenv("XTERM_VERSION") ? NULL : getenv("COLORTERM");
6357 if (term && !strcmp(term, "gnome-terminal")) {
6358 /* In the gnome-terminal-emulator, the message from
6359 * scrolling up one line when impossible followed by
6360 * scrolling down one line causes corruption of the
6361 * status line. This is fixed by calling wclear. */
6362 use_scroll_status_wclear = TRUE;
6363 use_scroll_redrawwin = FALSE;
6365 } else if (term && !strcmp(term, "xrvt-xpm")) {
6366 /* No problems with full optimizations in xrvt-(unicode)
6368 use_scroll_status_wclear = use_scroll_redrawwin = FALSE;
6371 /* When scrolling in (u)xterm the last line in the
6372 * scrolling direction will update slowly. */
6373 use_scroll_redrawwin = TRUE;
6374 use_scroll_status_wclear = FALSE;
6379 get_input(int prompt_position)
6382 int i, key, cursor_y, cursor_x;
6384 if (prompt_position)
6388 foreach_view (view, i) {
6390 if (view_is_displayed(view) && view->has_scrolled &&
6391 use_scroll_redrawwin)
6392 redrawwin(view->win);
6393 view->has_scrolled = FALSE;
6396 /* Update the cursor position. */
6397 if (prompt_position) {
6398 getbegyx(status_win, cursor_y, cursor_x);
6399 cursor_x = prompt_position;
6401 view = display[current_view];
6402 getbegyx(view->win, cursor_y, cursor_x);
6403 cursor_x = view->width - 1;
6404 cursor_y += view->lineno - view->offset;
6406 setsyx(cursor_y, cursor_x);
6408 /* Refresh, accept single keystroke of input */
6410 key = wgetch(status_win);
6412 /* wgetch() with nodelay() enabled returns ERR when
6413 * there's no input. */
6416 } else if (key == KEY_RESIZE) {
6419 getmaxyx(stdscr, height, width);
6421 wresize(status_win, 1, width);
6422 mvwin(status_win, height - 1, 0);
6423 wnoutrefresh(status_win);
6425 redraw_display(TRUE);
6435 prompt_input(const char *prompt, input_handler handler, void *data)
6437 enum input_status status = INPUT_OK;
6438 static char buf[SIZEOF_STR];
6443 while (status == INPUT_OK || status == INPUT_SKIP) {
6446 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6447 wclrtoeol(status_win);
6449 key = get_input(pos + 1);
6454 status = pos ? INPUT_STOP : INPUT_CANCEL;
6461 status = INPUT_CANCEL;
6465 status = INPUT_CANCEL;
6469 if (pos >= sizeof(buf)) {
6470 report("Input string too long");
6474 status = handler(data, buf, key);
6475 if (status == INPUT_OK)
6476 buf[pos++] = (char) key;
6480 /* Clear the status window */
6481 status_empty = FALSE;
6484 if (status == INPUT_CANCEL)
6492 static enum input_status
6493 prompt_yesno_handler(void *data, char *buf, int c)
6495 if (c == 'y' || c == 'Y')
6497 if (c == 'n' || c == 'N')
6498 return INPUT_CANCEL;
6503 prompt_yesno(const char *prompt)
6505 char prompt2[SIZEOF_STR];
6507 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6510 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6513 static enum input_status
6514 read_prompt_handler(void *data, char *buf, int c)
6516 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6520 read_prompt(const char *prompt)
6522 return prompt_input(prompt, read_prompt_handler, NULL);
6526 * Repository properties
6529 static struct ref *refs = NULL;
6530 static size_t refs_alloc = 0;
6531 static size_t refs_size = 0;
6533 /* Id <-> ref store */
6534 static struct ref ***id_refs = NULL;
6535 static size_t id_refs_alloc = 0;
6536 static size_t id_refs_size = 0;
6539 compare_refs(const void *ref1_, const void *ref2_)
6541 const struct ref *ref1 = *(const struct ref **)ref1_;
6542 const struct ref *ref2 = *(const struct ref **)ref2_;
6544 if (ref1->tag != ref2->tag)
6545 return ref2->tag - ref1->tag;
6546 if (ref1->ltag != ref2->ltag)
6547 return ref2->ltag - ref2->ltag;
6548 if (ref1->head != ref2->head)
6549 return ref2->head - ref1->head;
6550 if (ref1->tracked != ref2->tracked)
6551 return ref2->tracked - ref1->tracked;
6552 if (ref1->remote != ref2->remote)
6553 return ref2->remote - ref1->remote;
6554 return strcmp(ref1->name, ref2->name);
6557 static struct ref **
6558 get_refs(const char *id)
6560 struct ref ***tmp_id_refs;
6561 struct ref **ref_list = NULL;
6562 size_t ref_list_alloc = 0;
6563 size_t ref_list_size = 0;
6566 for (i = 0; i < id_refs_size; i++)
6567 if (!strcmp(id, id_refs[i][0]->id))
6570 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6575 id_refs = tmp_id_refs;
6577 for (i = 0; i < refs_size; i++) {
6580 if (strcmp(id, refs[i].id))
6583 tmp = realloc_items(ref_list, &ref_list_alloc,
6584 ref_list_size + 1, sizeof(*ref_list));
6592 ref_list[ref_list_size] = &refs[i];
6593 /* XXX: The properties of the commit chains ensures that we can
6594 * safely modify the shared ref. The repo references will
6595 * always be similar for the same id. */
6596 ref_list[ref_list_size]->next = 1;
6602 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6603 ref_list[ref_list_size - 1]->next = 0;
6604 id_refs[id_refs_size++] = ref_list;
6611 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6616 bool remote = FALSE;
6617 bool tracked = FALSE;
6618 bool check_replace = FALSE;
6621 if (!prefixcmp(name, "refs/tags/")) {
6622 if (!suffixcmp(name, namelen, "^{}")) {
6625 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6626 check_replace = TRUE;
6632 namelen -= STRING_SIZE("refs/tags/");
6633 name += STRING_SIZE("refs/tags/");
6635 } else if (!prefixcmp(name, "refs/remotes/")) {
6637 namelen -= STRING_SIZE("refs/remotes/");
6638 name += STRING_SIZE("refs/remotes/");
6639 tracked = !strcmp(opt_remote, name);
6641 } else if (!prefixcmp(name, "refs/heads/")) {
6642 namelen -= STRING_SIZE("refs/heads/");
6643 name += STRING_SIZE("refs/heads/");
6644 head = !strncmp(opt_head, name, namelen);
6646 } else if (!strcmp(name, "HEAD")) {
6647 string_ncopy(opt_head_rev, id, idlen);
6651 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6652 /* it's an annotated tag, replace the previous SHA1 with the
6653 * resolved commit id; relies on the fact git-ls-remote lists
6654 * the commit id of an annotated tag right before the commit id
6656 refs[refs_size - 1].ltag = ltag;
6657 string_copy_rev(refs[refs_size - 1].id, id);
6661 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6665 ref = &refs[refs_size++];
6666 ref->name = malloc(namelen + 1);
6670 strncpy(ref->name, name, namelen);
6671 ref->name[namelen] = 0;
6675 ref->remote = remote;
6676 ref->tracked = tracked;
6677 string_copy_rev(ref->id, id);
6685 static const char *ls_remote_argv[SIZEOF_ARG] = {
6686 "git", "ls-remote", opt_git_dir, NULL
6688 static bool init = FALSE;
6691 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6698 while (refs_size > 0)
6699 free(refs[--refs_size].name);
6700 while (id_refs_size > 0)
6701 free(id_refs[--id_refs_size]);
6703 return run_io_load(ls_remote_argv, "\t", read_ref);
6707 set_remote_branch(const char *name, const char *value, size_t valuelen)
6709 if (!strcmp(name, ".remote")) {
6710 string_ncopy(opt_remote, value, valuelen);
6712 } else if (*opt_remote && !strcmp(name, ".merge")) {
6713 size_t from = strlen(opt_remote);
6715 if (!prefixcmp(value, "refs/heads/"))
6716 value += STRING_SIZE("refs/heads/");
6718 if (!string_format_from(opt_remote, &from, "/%s", value))
6724 set_repo_config_option(char *name, char *value, int (*cmd)(int, const char **))
6726 const char *argv[SIZEOF_ARG] = { name, "=" };
6727 int argc = 1 + (cmd == option_set_command);
6730 if (!argv_from_string(argv, &argc, value))
6731 config_msg = "Too many option arguments";
6733 error = cmd(argc, argv);
6736 warn("Option 'tig.%s': %s", name, config_msg);
6740 set_environment_variable(const char *name, const char *value)
6742 size_t len = strlen(name) + 1 + strlen(value) + 1;
6743 char *env = malloc(len);
6746 string_nformat(env, len, NULL, "%s=%s", name, value) &&
6754 set_work_tree(const char *value)
6756 char cwd[SIZEOF_STR];
6758 if (!getcwd(cwd, sizeof(cwd)))
6759 die("Failed to get cwd path: %s", strerror(errno));
6760 if (chdir(opt_git_dir) < 0)
6761 die("Failed to chdir(%s): %s", strerror(errno));
6762 if (!getcwd(opt_git_dir, sizeof(opt_git_dir)))
6763 die("Failed to get git path: %s", strerror(errno));
6765 die("Failed to chdir(%s): %s", cwd, strerror(errno));
6766 if (chdir(value) < 0)
6767 die("Failed to chdir(%s): %s", value, strerror(errno));
6768 if (!getcwd(cwd, sizeof(cwd)))
6769 die("Failed to get cwd path: %s", strerror(errno));
6770 if (!set_environment_variable("GIT_WORK_TREE", cwd))
6771 die("Failed to set GIT_WORK_TREE to '%s'", cwd);
6772 if (!set_environment_variable("GIT_DIR", opt_git_dir))
6773 die("Failed to set GIT_DIR to '%s'", opt_git_dir);
6774 opt_is_inside_work_tree = TRUE;
6778 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6780 if (!strcmp(name, "i18n.commitencoding"))
6781 string_ncopy(opt_encoding, value, valuelen);
6783 else if (!strcmp(name, "core.editor"))
6784 string_ncopy(opt_editor, value, valuelen);
6786 else if (!strcmp(name, "core.worktree"))
6787 set_work_tree(value);
6789 else if (!prefixcmp(name, "tig.color."))
6790 set_repo_config_option(name + 10, value, option_color_command);
6792 else if (!prefixcmp(name, "tig.bind."))
6793 set_repo_config_option(name + 9, value, option_bind_command);
6795 else if (!prefixcmp(name, "tig."))
6796 set_repo_config_option(name + 4, value, option_set_command);
6798 else if (*opt_head && !prefixcmp(name, "branch.") &&
6799 !strncmp(name + 7, opt_head, strlen(opt_head)))
6800 set_remote_branch(name + 7 + strlen(opt_head), value, valuelen);
6806 load_git_config(void)
6808 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6810 return run_io_load(config_list_argv, "=", read_repo_config_option);
6814 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6816 if (!opt_git_dir[0]) {
6817 string_ncopy(opt_git_dir, name, namelen);
6819 } else if (opt_is_inside_work_tree == -1) {
6820 /* This can be 3 different values depending on the
6821 * version of git being used. If git-rev-parse does not
6822 * understand --is-inside-work-tree it will simply echo
6823 * the option else either "true" or "false" is printed.
6824 * Default to true for the unknown case. */
6825 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6827 } else if (*name == '.') {
6828 string_ncopy(opt_cdup, name, namelen);
6831 string_ncopy(opt_prefix, name, namelen);
6838 load_repo_info(void)
6840 const char *head_argv[] = {
6841 "git", "symbolic-ref", "HEAD", NULL
6843 const char *rev_parse_argv[] = {
6844 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6845 "--show-cdup", "--show-prefix", NULL
6848 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6849 chomp_string(opt_head);
6850 if (!prefixcmp(opt_head, "refs/heads/")) {
6851 char *offset = opt_head + STRING_SIZE("refs/heads/");
6853 memmove(opt_head, offset, strlen(offset) + 1);
6857 return run_io_load(rev_parse_argv, "=", read_repo_info);
6865 static const char usage[] =
6866 "tig " TIG_VERSION " (" __DATE__ ")\n"
6868 "Usage: tig [options] [revs] [--] [paths]\n"
6869 " or: tig show [options] [revs] [--] [paths]\n"
6870 " or: tig blame [rev] path\n"
6872 " or: tig < [git command output]\n"
6875 " -v, --version Show version and exit\n"
6876 " -h, --help Show help message and exit";
6878 static void __NORETURN
6881 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6887 static void __NORETURN
6888 die(const char *err, ...)
6894 va_start(args, err);
6895 fputs("tig: ", stderr);
6896 vfprintf(stderr, err, args);
6897 fputs("\n", stderr);
6904 warn(const char *msg, ...)
6908 va_start(args, msg);
6909 fputs("tig warning: ", stderr);
6910 vfprintf(stderr, msg, args);
6911 fputs("\n", stderr);
6916 parse_options(int argc, const char *argv[])
6918 enum request request = REQ_VIEW_MAIN;
6919 const char *subcommand;
6920 bool seen_dashdash = FALSE;
6921 /* XXX: This is vulnerable to the user overriding options
6922 * required for the main view parser. */
6923 const char *custom_argv[SIZEOF_ARG] = {
6924 "git", "log", "--no-color", "--pretty=raw", "--parents",
6925 "--topo-order", NULL
6929 if (!isatty(STDIN_FILENO)) {
6930 io_open(&VIEW(REQ_VIEW_PAGER)->io, "");
6931 return REQ_VIEW_PAGER;
6937 subcommand = argv[1];
6938 if (!strcmp(subcommand, "status")) {
6940 warn("ignoring arguments after `%s'", subcommand);
6941 return REQ_VIEW_STATUS;
6943 } else if (!strcmp(subcommand, "blame")) {
6944 if (argc <= 2 || argc > 4)
6945 die("invalid number of options to blame\n\n%s", usage);
6949 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
6953 string_ncopy(opt_file, argv[i], strlen(argv[i]));
6954 return REQ_VIEW_BLAME;
6956 } else if (!strcmp(subcommand, "show")) {
6957 request = REQ_VIEW_DIFF;
6964 custom_argv[1] = subcommand;
6968 for (i = 1 + !!subcommand; i < argc; i++) {
6969 const char *opt = argv[i];
6971 if (seen_dashdash || !strcmp(opt, "--")) {
6972 seen_dashdash = TRUE;
6974 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
6975 printf("tig version %s\n", TIG_VERSION);
6978 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
6979 printf("%s\n", usage);
6983 custom_argv[j++] = opt;
6984 if (j >= ARRAY_SIZE(custom_argv))
6985 die("command too long");
6988 if (!prepare_update(VIEW(request), custom_argv, NULL, FORMAT_NONE))
6989 die("Failed to format arguments");
6995 main(int argc, const char *argv[])
6997 enum request request = parse_options(argc, argv);
7001 signal(SIGINT, quit);
7002 signal(SIGPIPE, SIG_IGN);
7004 if (setlocale(LC_ALL, "")) {
7005 char *codeset = nl_langinfo(CODESET);
7007 string_ncopy(opt_codeset, codeset, strlen(codeset));
7010 if (load_repo_info() == ERR)
7011 die("Failed to load repo info.");
7013 if (load_options() == ERR)
7014 die("Failed to load user config.");
7016 if (load_git_config() == ERR)
7017 die("Failed to load repo config.");
7019 /* Require a git repository unless when running in pager mode. */
7020 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
7021 die("Not a git repository");
7023 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
7026 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
7027 opt_iconv = iconv_open(opt_codeset, opt_encoding);
7028 if (opt_iconv == ICONV_NONE)
7029 die("Failed to initialize character set conversion");
7032 if (load_refs() == ERR)
7033 die("Failed to load refs.");
7035 foreach_view (view, i)
7036 argv_from_env(view->ops->argv, view->cmd_env);
7040 if (request != REQ_NONE)
7041 open_view(NULL, request, OPEN_PREPARED);
7042 request = request == REQ_NONE ? REQ_VIEW_MAIN : REQ_NONE;
7044 while (view_driver(display[current_view], request)) {
7045 int key = get_input(0);
7047 view = display[current_view];
7048 request = get_keybinding(view->keymap, key);
7050 /* Some low-level request handling. This keeps access to
7051 * status_win restricted. */
7055 char *cmd = read_prompt(":");
7057 if (cmd && isdigit(*cmd)) {
7058 int lineno = view->lineno + 1;
7060 if (parse_int(&lineno, cmd, 1, view->lines + 1) == OK) {
7061 select_view_line(view, lineno - 1);
7064 report("Unable to parse '%s' as a line number", cmd);
7068 struct view *next = VIEW(REQ_VIEW_PAGER);
7069 const char *argv[SIZEOF_ARG] = { "git" };
7072 /* When running random commands, initially show the
7073 * command in the title. However, it maybe later be
7074 * overwritten if a commit line is selected. */
7075 string_ncopy(next->ref, cmd, strlen(cmd));
7077 if (!argv_from_string(argv, &argc, cmd)) {
7078 report("Too many arguments");
7079 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
7080 report("Failed to format command");
7082 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
7090 case REQ_SEARCH_BACK:
7092 const char *prompt = request == REQ_SEARCH ? "/" : "?";
7093 char *search = read_prompt(prompt);
7096 string_ncopy(opt_search, search, strlen(search));
7097 else if (*opt_search)
7098 request = request == REQ_SEARCH ?