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 if (view->digits <= 9)
2036 fmt[1] = '0' + digits3;
2038 if (string_format(number, fmt, lineno))
2042 view->col += draw_chars(view, LINE_LINE_NUMBER, text, max, TRUE);
2044 view->col += draw_space(view, LINE_LINE_NUMBER, max, digits3);
2045 return draw_graphic(view, LINE_DEFAULT, &line_graphics[LINE_GRAPHIC_VLINE], 1);
2049 draw_view_line(struct view *view, unsigned int lineno)
2052 bool selected = (view->offset + lineno == view->lineno);
2054 assert(view_is_displayed(view));
2056 if (view->offset + lineno >= view->lines)
2059 line = &view->line[view->offset + lineno];
2061 wmove(view->win, lineno, 0);
2063 wclrtoeol(view->win);
2065 view->curline = line;
2066 view->curtype = LINE_NONE;
2067 line->selected = FALSE;
2068 line->dirty = line->cleareol = 0;
2071 set_view_attr(view, LINE_CURSOR);
2072 line->selected = TRUE;
2073 view->ops->select(view, line);
2076 return view->ops->draw(view, line, lineno);
2080 redraw_view_dirty(struct view *view)
2085 for (lineno = 0; lineno < view->height; lineno++) {
2086 if (view->offset + lineno >= view->lines)
2088 if (!view->line[view->offset + lineno].dirty)
2091 if (!draw_view_line(view, lineno))
2097 wnoutrefresh(view->win);
2101 redraw_view_from(struct view *view, int lineno)
2103 assert(0 <= lineno && lineno < view->height);
2105 for (; lineno < view->height; lineno++) {
2106 if (!draw_view_line(view, lineno))
2110 wnoutrefresh(view->win);
2114 redraw_view(struct view *view)
2117 redraw_view_from(view, 0);
2122 update_view_title(struct view *view)
2124 char buf[SIZEOF_STR];
2125 char state[SIZEOF_STR];
2126 size_t bufpos = 0, statelen = 0;
2128 assert(view_is_displayed(view));
2130 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2131 unsigned int view_lines = view->offset + view->height;
2132 unsigned int lines = view->lines
2133 ? MIN(view_lines, view->lines) * 100 / view->lines
2136 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2145 time_t secs = time(NULL) - view->start_time;
2147 /* Three git seconds are a long time ... */
2149 string_format_from(state, &statelen, " loading %lds", secs);
2152 string_format_from(buf, &bufpos, "[%s]", view->name);
2153 if (*view->ref && bufpos < view->width) {
2154 size_t refsize = strlen(view->ref);
2155 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2157 if (minsize < view->width)
2158 refsize = view->width - minsize + 7;
2159 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2162 if (statelen && bufpos < view->width) {
2163 string_format_from(buf, &bufpos, "%s", state);
2166 if (view == display[current_view])
2167 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2169 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2171 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2172 wclrtoeol(view->title);
2173 wnoutrefresh(view->title);
2177 resize_display(void)
2180 struct view *base = display[0];
2181 struct view *view = display[1] ? display[1] : display[0];
2183 /* Setup window dimensions */
2185 getmaxyx(stdscr, base->height, base->width);
2187 /* Make room for the status window. */
2191 /* Horizontal split. */
2192 view->width = base->width;
2193 view->height = SCALE_SPLIT_VIEW(base->height);
2194 base->height -= view->height;
2196 /* Make room for the title bar. */
2200 /* Make room for the title bar. */
2205 foreach_displayed_view (view, i) {
2207 view->win = newwin(view->height, 0, offset, 0);
2209 die("Failed to create %s view", view->name);
2211 scrollok(view->win, FALSE);
2213 view->title = newwin(1, 0, offset + view->height, 0);
2215 die("Failed to create title window");
2218 wresize(view->win, view->height, view->width);
2219 mvwin(view->win, offset, 0);
2220 mvwin(view->title, offset + view->height, 0);
2223 offset += view->height + 1;
2228 redraw_display(bool clear)
2233 foreach_displayed_view (view, i) {
2237 update_view_title(view);
2242 toggle_view_option(bool *option, const char *help)
2245 redraw_display(FALSE);
2246 report("%sabling %s", *option ? "En" : "Dis", help);
2250 maximize_view(struct view *view)
2252 memset(display, 0, sizeof(display));
2254 display[current_view] = view;
2256 redraw_display(FALSE);
2266 goto_view_line(struct view *view, unsigned long offset, unsigned long lineno)
2268 if (lineno >= view->lines)
2269 lineno = view->lines > 0 ? view->lines - 1 : 0;
2271 if (offset > lineno || offset + view->height <= lineno) {
2272 unsigned long half = view->height / 2;
2275 offset = lineno - half;
2280 if (offset != view->offset || lineno != view->lineno) {
2281 view->offset = offset;
2282 view->lineno = lineno;
2290 apply_step(double step, int value)
2294 value *= step + 0.01;
2295 return value ? value : 1;
2298 /* Scrolling backend */
2300 do_scroll_view(struct view *view, int lines)
2302 bool redraw_current_line = FALSE;
2304 /* The rendering expects the new offset. */
2305 view->offset += lines;
2307 assert(0 <= view->offset && view->offset < view->lines);
2310 /* Move current line into the view. */
2311 if (view->lineno < view->offset) {
2312 view->lineno = view->offset;
2313 redraw_current_line = TRUE;
2314 } else if (view->lineno >= view->offset + view->height) {
2315 view->lineno = view->offset + view->height - 1;
2316 redraw_current_line = TRUE;
2319 assert(view->offset <= view->lineno && view->lineno < view->lines);
2321 /* Redraw the whole screen if scrolling is pointless. */
2322 if (view->height < ABS(lines)) {
2326 int line = lines > 0 ? view->height - lines : 0;
2327 int end = line + ABS(lines);
2329 scrollok(view->win, TRUE);
2330 wscrl(view->win, lines);
2331 scrollok(view->win, FALSE);
2333 while (line < end && draw_view_line(view, line))
2336 if (redraw_current_line)
2337 draw_view_line(view, view->lineno - view->offset);
2338 wnoutrefresh(view->win);
2341 view->has_scrolled = TRUE;
2345 /* Scroll frontend */
2347 scroll_view(struct view *view, enum request request)
2351 assert(view_is_displayed(view));
2354 case REQ_SCROLL_LEFT:
2355 if (view->yoffset == 0) {
2356 report("Cannot scroll beyond the first column");
2359 if (view->yoffset <= apply_step(opt_hscroll, view->width))
2362 view->yoffset -= apply_step(opt_hscroll, view->width);
2363 redraw_view_from(view, 0);
2366 case REQ_SCROLL_RIGHT:
2367 view->yoffset += apply_step(opt_hscroll, view->width);
2371 case REQ_SCROLL_PAGE_DOWN:
2372 lines = view->height;
2373 case REQ_SCROLL_LINE_DOWN:
2374 if (view->offset + lines > view->lines)
2375 lines = view->lines - view->offset;
2377 if (lines == 0 || view->offset + view->height >= view->lines) {
2378 report("Cannot scroll beyond the last line");
2383 case REQ_SCROLL_PAGE_UP:
2384 lines = view->height;
2385 case REQ_SCROLL_LINE_UP:
2386 if (lines > view->offset)
2387 lines = view->offset;
2390 report("Cannot scroll beyond the first line");
2398 die("request %d not handled in switch", request);
2401 do_scroll_view(view, lines);
2406 move_view(struct view *view, enum request request)
2408 int scroll_steps = 0;
2412 case REQ_MOVE_FIRST_LINE:
2413 steps = -view->lineno;
2416 case REQ_MOVE_LAST_LINE:
2417 steps = view->lines - view->lineno - 1;
2420 case REQ_MOVE_PAGE_UP:
2421 steps = view->height > view->lineno
2422 ? -view->lineno : -view->height;
2425 case REQ_MOVE_PAGE_DOWN:
2426 steps = view->lineno + view->height >= view->lines
2427 ? view->lines - view->lineno - 1 : view->height;
2439 die("request %d not handled in switch", request);
2442 if (steps <= 0 && view->lineno == 0) {
2443 report("Cannot move beyond the first line");
2446 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2447 report("Cannot move beyond the last line");
2451 /* Move the current line */
2452 view->lineno += steps;
2453 assert(0 <= view->lineno && view->lineno < view->lines);
2455 /* Check whether the view needs to be scrolled */
2456 if (view->lineno < view->offset ||
2457 view->lineno >= view->offset + view->height) {
2458 scroll_steps = steps;
2459 if (steps < 0 && -steps > view->offset) {
2460 scroll_steps = -view->offset;
2462 } else if (steps > 0) {
2463 if (view->lineno == view->lines - 1 &&
2464 view->lines > view->height) {
2465 scroll_steps = view->lines - view->offset - 1;
2466 if (scroll_steps >= view->height)
2467 scroll_steps -= view->height - 1;
2472 if (!view_is_displayed(view)) {
2473 view->offset += scroll_steps;
2474 assert(0 <= view->offset && view->offset < view->lines);
2475 view->ops->select(view, &view->line[view->lineno]);
2479 /* Repaint the old "current" line if we be scrolling */
2480 if (ABS(steps) < view->height)
2481 draw_view_line(view, view->lineno - steps - view->offset);
2484 do_scroll_view(view, scroll_steps);
2488 /* Draw the current line */
2489 draw_view_line(view, view->lineno - view->offset);
2491 wnoutrefresh(view->win);
2500 static void search_view(struct view *view, enum request request);
2503 select_view_line(struct view *view, unsigned long lineno)
2505 unsigned long old_lineno = view->lineno;
2506 unsigned long old_offset = view->offset;
2508 if (goto_view_line(view, view->offset, lineno)) {
2509 if (view_is_displayed(view)) {
2510 if (old_offset != view->offset) {
2513 draw_view_line(view, old_lineno - view->offset);
2514 draw_view_line(view, view->lineno - view->offset);
2515 wnoutrefresh(view->win);
2518 view->ops->select(view, &view->line[view->lineno]);
2524 find_next(struct view *view, enum request request)
2526 unsigned long lineno = view->lineno;
2531 report("No previous search");
2533 search_view(view, request);
2543 case REQ_SEARCH_BACK:
2552 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2553 lineno += direction;
2555 /* Note, lineno is unsigned long so will wrap around in which case it
2556 * will become bigger than view->lines. */
2557 for (; lineno < view->lines; lineno += direction) {
2558 if (view->ops->grep(view, &view->line[lineno])) {
2559 select_view_line(view, lineno);
2560 report("Line %ld matches '%s'", lineno + 1, view->grep);
2565 report("No match found for '%s'", view->grep);
2569 search_view(struct view *view, enum request request)
2574 regfree(view->regex);
2577 view->regex = calloc(1, sizeof(*view->regex));
2582 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2583 if (regex_err != 0) {
2584 char buf[SIZEOF_STR] = "unknown error";
2586 regerror(regex_err, view->regex, buf, sizeof(buf));
2587 report("Search failed: %s", buf);
2591 string_copy(view->grep, opt_search);
2593 find_next(view, request);
2597 * Incremental updating
2601 reset_view(struct view *view)
2605 for (i = 0; i < view->lines; i++)
2606 free(view->line[i].data);
2609 view->p_offset = view->offset;
2610 view->p_yoffset = view->yoffset;
2611 view->p_lineno = view->lineno;
2618 view->line_alloc = 0;
2620 view->update_secs = 0;
2624 free_argv(const char *argv[])
2628 for (argc = 0; argv[argc]; argc++)
2629 free((void *) argv[argc]);
2633 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2635 char buf[SIZEOF_STR];
2637 bool noreplace = flags == FORMAT_NONE;
2639 free_argv(dst_argv);
2641 for (argc = 0; src_argv[argc]; argc++) {
2642 const char *arg = src_argv[argc];
2646 char *next = strstr(arg, "%(");
2647 int len = next - arg;
2650 if (!next || noreplace) {
2651 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2656 } else if (!prefixcmp(next, "%(directory)")) {
2659 } else if (!prefixcmp(next, "%(file)")) {
2662 } else if (!prefixcmp(next, "%(ref)")) {
2663 value = *opt_ref ? opt_ref : "HEAD";
2665 } else if (!prefixcmp(next, "%(head)")) {
2668 } else if (!prefixcmp(next, "%(commit)")) {
2671 } else if (!prefixcmp(next, "%(blob)")) {
2675 report("Unknown replacement: `%s`", next);
2679 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2682 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2685 dst_argv[argc] = strdup(buf);
2686 if (!dst_argv[argc])
2690 dst_argv[argc] = NULL;
2692 return src_argv[argc] == NULL;
2696 restore_view_position(struct view *view)
2698 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2701 /* Changing the view position cancels the restoring. */
2702 /* FIXME: Changing back to the first line is not detected. */
2703 if (view->offset != 0 || view->lineno != 0) {
2704 view->p_restore = FALSE;
2708 if (goto_view_line(view, view->p_offset, view->p_lineno) &&
2709 view_is_displayed(view))
2712 view->yoffset = view->p_yoffset;
2713 view->p_restore = FALSE;
2719 end_update(struct view *view, bool force)
2723 while (!view->ops->read(view, NULL))
2726 set_nonblocking_input(FALSE);
2728 kill_io(view->pipe);
2729 done_io(view->pipe);
2734 setup_update(struct view *view, const char *vid)
2736 set_nonblocking_input(TRUE);
2738 string_copy_rev(view->vid, vid);
2739 view->pipe = &view->io;
2740 view->start_time = time(NULL);
2744 prepare_update(struct view *view, const char *argv[], const char *dir,
2745 enum format_flags flags)
2748 end_update(view, TRUE);
2749 return init_io_rd(&view->io, argv, dir, flags);
2753 prepare_update_file(struct view *view, const char *name)
2756 end_update(view, TRUE);
2757 return io_open(&view->io, name);
2761 begin_update(struct view *view, bool refresh)
2764 end_update(view, TRUE);
2767 if (!start_io(&view->io))
2771 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2774 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2777 /* Put the current ref_* value to the view title ref
2778 * member. This is needed by the blob view. Most other
2779 * views sets it automatically after loading because the
2780 * first line is a commit line. */
2781 string_copy_rev(view->ref, view->id);
2784 setup_update(view, view->id);
2789 #define ITEM_CHUNK_SIZE 256
2791 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2793 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2794 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2796 if (mem == NULL || num_chunks != num_chunks_new) {
2797 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2798 mem = realloc(mem, *size * item_size);
2804 static struct line *
2805 realloc_lines(struct view *view, size_t line_size)
2807 size_t alloc = view->line_alloc;
2808 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2809 sizeof(*view->line));
2815 view->line_alloc = alloc;
2820 update_view(struct view *view)
2822 char out_buffer[BUFSIZ * 2];
2824 /* Clear the view and redraw everything since the tree sorting
2825 * might have rearranged things. */
2826 bool redraw = view->lines == 0;
2827 bool can_read = TRUE;
2832 if (!io_can_read(view->pipe)) {
2833 if (view->lines == 0 && view_is_displayed(view)) {
2834 time_t secs = time(NULL) - view->start_time;
2836 if (secs > 1 && secs > view->update_secs) {
2837 if (view->update_secs == 0)
2839 update_view_title(view);
2840 view->update_secs = secs;
2846 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2847 if (opt_iconv != ICONV_NONE) {
2848 ICONV_CONST char *inbuf = line;
2849 size_t inlen = strlen(line) + 1;
2851 char *outbuf = out_buffer;
2852 size_t outlen = sizeof(out_buffer);
2856 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2857 if (ret != (size_t) -1)
2861 if (!view->ops->read(view, line)) {
2862 report("Allocation failure");
2863 end_update(view, TRUE);
2869 unsigned long lines = view->lines;
2872 for (digits = 0; lines; digits++)
2875 /* Keep the displayed view in sync with line number scaling. */
2876 if (digits != view->digits) {
2877 view->digits = digits;
2878 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2883 if (io_error(view->pipe)) {
2884 report("Failed to read: %s", io_strerror(view->pipe));
2885 end_update(view, TRUE);
2887 } else if (io_eof(view->pipe)) {
2889 end_update(view, FALSE);
2892 if (restore_view_position(view))
2895 if (!view_is_displayed(view))
2899 redraw_view_from(view, 0);
2901 redraw_view_dirty(view);
2903 /* Update the title _after_ the redraw so that if the redraw picks up a
2904 * commit reference in view->ref it'll be available here. */
2905 update_view_title(view);
2909 static struct line *
2910 add_line_data(struct view *view, void *data, enum line_type type)
2914 if (!realloc_lines(view, view->lines + 1))
2917 line = &view->line[view->lines++];
2918 memset(line, 0, sizeof(*line));
2926 static struct line *
2927 add_line_text(struct view *view, const char *text, enum line_type type)
2929 char *data = text ? strdup(text) : NULL;
2931 return data ? add_line_data(view, data, type) : NULL;
2934 static struct line *
2935 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2937 char buf[SIZEOF_STR];
2940 va_start(args, fmt);
2941 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2945 return buf[0] ? add_line_text(view, buf, type) : NULL;
2953 OPEN_DEFAULT = 0, /* Use default view switching. */
2954 OPEN_SPLIT = 1, /* Split current view. */
2955 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2956 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2957 OPEN_PREPARED = 32, /* Open already prepared command. */
2961 open_view(struct view *prev, enum request request, enum open_flags flags)
2963 bool split = !!(flags & OPEN_SPLIT);
2964 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2965 bool nomaximize = !!(flags & OPEN_REFRESH);
2966 struct view *view = VIEW(request);
2967 int nviews = displayed_views();
2968 struct view *base_view = display[0];
2970 if (view == prev && nviews == 1 && !reload) {
2971 report("Already in %s view", view->name);
2975 if (view->git_dir && !opt_git_dir[0]) {
2976 report("The %s view is disabled in pager view", view->name);
2983 } else if (!nomaximize) {
2984 /* Maximize the current view. */
2985 memset(display, 0, sizeof(display));
2987 display[current_view] = view;
2990 /* Resize the view when switching between split- and full-screen,
2991 * or when switching between two different full-screen views. */
2992 if (nviews != displayed_views() ||
2993 (nviews == 1 && base_view != display[0]))
2996 if (view->ops->open) {
2998 end_update(view, TRUE);
2999 if (!view->ops->open(view)) {
3000 report("Failed to load %s view", view->name);
3003 restore_view_position(view);
3005 } else if ((reload || strcmp(view->vid, view->id)) &&
3006 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
3007 report("Failed to load %s view", view->name);
3011 if (split && prev->lineno - prev->offset >= prev->height) {
3012 /* Take the title line into account. */
3013 int lines = prev->lineno - prev->offset - prev->height + 1;
3015 /* Scroll the view that was split if the current line is
3016 * outside the new limited view. */
3017 do_scroll_view(prev, lines);
3020 if (prev && view != prev) {
3022 /* "Blur" the previous view. */
3023 update_view_title(prev);
3026 view->parent = prev;
3029 if (view->pipe && view->lines == 0) {
3030 /* Clear the old view and let the incremental updating refill
3033 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
3035 } else if (view_is_displayed(view)) {
3042 open_external_viewer(const char *argv[], const char *dir)
3044 def_prog_mode(); /* save current tty modes */
3045 endwin(); /* restore original tty modes */
3046 run_io_fg(argv, dir);
3047 fprintf(stderr, "Press Enter to continue");
3050 redraw_display(TRUE);
3054 open_mergetool(const char *file)
3056 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
3058 open_external_viewer(mergetool_argv, opt_cdup);
3062 open_editor(bool from_root, const char *file)
3064 const char *editor_argv[] = { "vi", file, NULL };
3067 editor = getenv("GIT_EDITOR");
3068 if (!editor && *opt_editor)
3069 editor = opt_editor;
3071 editor = getenv("VISUAL");
3073 editor = getenv("EDITOR");
3077 editor_argv[0] = editor;
3078 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3082 open_run_request(enum request request)
3084 struct run_request *req = get_run_request(request);
3085 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3088 report("Unknown run request");
3092 if (format_argv(argv, req->argv, FORMAT_ALL))
3093 open_external_viewer(argv, NULL);
3098 * User request switch noodle
3102 view_driver(struct view *view, enum request request)
3106 if (request == REQ_NONE) {
3111 if (request > REQ_NONE) {
3112 open_run_request(request);
3113 /* FIXME: When all views can refresh always do this. */
3114 if (view == VIEW(REQ_VIEW_STATUS) ||
3115 view == VIEW(REQ_VIEW_MAIN) ||
3116 view == VIEW(REQ_VIEW_LOG) ||
3117 view == VIEW(REQ_VIEW_STAGE))
3118 request = REQ_REFRESH;
3123 if (view && view->lines) {
3124 request = view->ops->request(view, request, &view->line[view->lineno]);
3125 if (request == REQ_NONE)
3132 case REQ_MOVE_PAGE_UP:
3133 case REQ_MOVE_PAGE_DOWN:
3134 case REQ_MOVE_FIRST_LINE:
3135 case REQ_MOVE_LAST_LINE:
3136 move_view(view, request);
3139 case REQ_SCROLL_LEFT:
3140 case REQ_SCROLL_RIGHT:
3141 case REQ_SCROLL_LINE_DOWN:
3142 case REQ_SCROLL_LINE_UP:
3143 case REQ_SCROLL_PAGE_DOWN:
3144 case REQ_SCROLL_PAGE_UP:
3145 scroll_view(view, request);
3148 case REQ_VIEW_BLAME:
3150 report("No file chosen, press %s to open tree view",
3151 get_key(REQ_VIEW_TREE));
3154 open_view(view, request, OPEN_DEFAULT);
3159 report("No file chosen, press %s to open tree view",
3160 get_key(REQ_VIEW_TREE));
3163 open_view(view, request, OPEN_DEFAULT);
3166 case REQ_VIEW_PAGER:
3167 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3168 report("No pager content, press %s to run command from prompt",
3169 get_key(REQ_PROMPT));
3172 open_view(view, request, OPEN_DEFAULT);
3175 case REQ_VIEW_STAGE:
3176 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3177 report("No stage content, press %s to open the status view and choose file",
3178 get_key(REQ_VIEW_STATUS));
3181 open_view(view, request, OPEN_DEFAULT);
3184 case REQ_VIEW_STATUS:
3185 if (opt_is_inside_work_tree == FALSE) {
3186 report("The status view requires a working tree");
3189 open_view(view, request, OPEN_DEFAULT);
3197 open_view(view, request, OPEN_DEFAULT);
3202 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3204 if ((view == VIEW(REQ_VIEW_DIFF) &&
3205 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3206 (view == VIEW(REQ_VIEW_DIFF) &&
3207 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3208 (view == VIEW(REQ_VIEW_STAGE) &&
3209 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3210 (view == VIEW(REQ_VIEW_BLOB) &&
3211 view->parent == VIEW(REQ_VIEW_TREE))) {
3214 view = view->parent;
3215 line = view->lineno;
3216 move_view(view, request);
3217 if (view_is_displayed(view))
3218 update_view_title(view);
3219 if (line != view->lineno)
3220 view->ops->request(view, REQ_ENTER,
3221 &view->line[view->lineno]);
3224 move_view(view, request);
3230 int nviews = displayed_views();
3231 int next_view = (current_view + 1) % nviews;
3233 if (next_view == current_view) {
3234 report("Only one view is displayed");
3238 current_view = next_view;
3239 /* Blur out the title of the previous view. */
3240 update_view_title(view);
3245 report("Refreshing is not yet supported for the %s view", view->name);
3249 if (displayed_views() == 2)
3250 maximize_view(view);
3253 case REQ_TOGGLE_LINENO:
3254 toggle_view_option(&opt_line_number, "line numbers");
3257 case REQ_TOGGLE_DATE:
3258 toggle_view_option(&opt_date, "date display");
3261 case REQ_TOGGLE_AUTHOR:
3262 toggle_view_option(&opt_author, "author display");
3265 case REQ_TOGGLE_REV_GRAPH:
3266 toggle_view_option(&opt_rev_graph, "revision graph display");
3269 case REQ_TOGGLE_REFS:
3270 toggle_view_option(&opt_show_refs, "reference display");
3274 case REQ_SEARCH_BACK:
3275 search_view(view, request);
3280 find_next(view, request);
3283 case REQ_STOP_LOADING:
3284 for (i = 0; i < ARRAY_SIZE(views); i++) {
3287 report("Stopped loading the %s view", view->name),
3288 end_update(view, TRUE);
3292 case REQ_SHOW_VERSION:
3293 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3296 case REQ_SCREEN_REDRAW:
3297 redraw_display(TRUE);
3301 report("Nothing to edit");
3305 report("Nothing to enter");
3308 case REQ_VIEW_CLOSE:
3309 /* XXX: Mark closed views by letting view->parent point to the
3310 * view itself. Parents to closed view should never be
3313 view->parent->parent != view->parent) {
3314 maximize_view(view->parent);
3315 view->parent = view;
3323 report("Unknown key, press 'h' for help");
3332 * View backend utilities
3336 parse_timezone(time_t *time, const char *zone)
3340 tz = ('0' - zone[1]) * 60 * 60 * 10;
3341 tz += ('0' - zone[2]) * 60 * 60;
3342 tz += ('0' - zone[3]) * 60;
3343 tz += ('0' - zone[4]);
3351 /* Parse author lines where the name may be empty:
3352 * author <email@address.tld> 1138474660 +0100
3355 parse_author_line(char *ident, char *author, size_t authorsize, struct tm *tm)
3357 char *nameend = strchr(ident, '<');
3358 char *emailend = strchr(ident, '>');
3360 if (nameend && emailend)
3361 *nameend = *emailend = 0;
3362 ident = chomp_string(ident);
3365 ident = chomp_string(nameend + 1);
3370 string_ncopy_do(author, authorsize, ident, strlen(ident));
3372 /* Parse epoch and timezone */
3373 if (emailend && emailend[1] == ' ') {
3374 char *secs = emailend + 2;
3375 char *zone = strchr(secs, ' ');
3376 time_t time = (time_t) atol(secs);
3378 if (zone && strlen(zone) == STRING_SIZE(" +0700"))
3379 parse_timezone(&time, zone + 1);
3381 gmtime_r(&time, tm);
3385 static enum input_status
3386 select_commit_parent_handler(void *data, char *buf, int c)
3388 size_t parents = *(size_t *) data;
3395 parent = atoi(buf) * 10;
3398 if (parent > parents)
3404 select_commit_parent(const char *id, char rev[SIZEOF_REV], const char *path)
3406 char buf[SIZEOF_STR * 4];
3407 const char *revlist_argv[] = {
3408 "git", "rev-list", "-1", "--parents", id, "--", path, NULL
3412 if (!run_io_buf(revlist_argv, buf, sizeof(buf)) ||
3413 !*chomp_string(buf) ||
3414 (parents = (strlen(buf) / 40) - 1) < 0) {
3415 report("Failed to get parent information");
3418 } else if (parents == 0) {
3420 report("Path '%s' does not exist in the parent", path);
3422 report("The selected commit has no parents");
3427 char prompt[SIZEOF_STR];
3430 if (!string_format(prompt, "Which parent? [1..%d] ", parents))
3432 result = prompt_input(prompt, select_commit_parent_handler, &parents);
3435 parents = atoi(result);
3438 string_copy_rev(rev, &buf[41 * parents]);
3447 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3449 char text[SIZEOF_STR];
3451 if (opt_line_number && draw_lineno(view, lineno))
3454 string_expand(text, sizeof(text), line->data, opt_tab_size);
3455 draw_text(view, line->type, text, TRUE);
3460 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3462 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3463 char refbuf[SIZEOF_STR];
3466 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3467 ref = chomp_string(refbuf);
3472 /* This is the only fatal call, since it can "corrupt" the buffer. */
3473 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3480 add_pager_refs(struct view *view, struct line *line)
3482 char buf[SIZEOF_STR];
3483 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3485 size_t bufpos = 0, refpos = 0;
3486 const char *sep = "Refs: ";
3487 bool is_tag = FALSE;
3489 assert(line->type == LINE_COMMIT);
3491 refs = get_refs(commit_id);
3493 if (view == VIEW(REQ_VIEW_DIFF))
3494 goto try_add_describe_ref;
3499 struct ref *ref = refs[refpos];
3500 const char *fmt = ref->tag ? "%s[%s]" :
3501 ref->remote ? "%s<%s>" : "%s%s";
3503 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3508 } while (refs[refpos++]->next);
3510 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3511 try_add_describe_ref:
3512 /* Add <tag>-g<commit_id> "fake" reference. */
3513 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3520 add_line_text(view, buf, LINE_PP_REFS);
3524 pager_read(struct view *view, char *data)
3531 line = add_line_text(view, data, get_line_type(data));
3535 if (line->type == LINE_COMMIT &&
3536 (view == VIEW(REQ_VIEW_DIFF) ||
3537 view == VIEW(REQ_VIEW_LOG)))
3538 add_pager_refs(view, line);
3544 pager_request(struct view *view, enum request request, struct line *line)
3548 if (request != REQ_ENTER)
3551 if (line->type == LINE_COMMIT &&
3552 (view == VIEW(REQ_VIEW_LOG) ||
3553 view == VIEW(REQ_VIEW_PAGER))) {
3554 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3558 /* Always scroll the view even if it was split. That way
3559 * you can use Enter to scroll through the log view and
3560 * split open each commit diff. */
3561 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3563 /* FIXME: A minor workaround. Scrolling the view will call report("")
3564 * but if we are scrolling a non-current view this won't properly
3565 * update the view title. */
3567 update_view_title(view);
3573 pager_grep(struct view *view, struct line *line)
3576 char *text = line->data;
3581 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3588 pager_select(struct view *view, struct line *line)
3590 if (line->type == LINE_COMMIT) {
3591 char *text = (char *)line->data + STRING_SIZE("commit ");
3593 if (view != VIEW(REQ_VIEW_PAGER))
3594 string_copy_rev(view->ref, text);
3595 string_copy_rev(ref_commit, text);
3599 static struct view_ops pager_ops = {
3610 static const char *log_argv[SIZEOF_ARG] = {
3611 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3615 log_request(struct view *view, enum request request, struct line *line)
3620 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3623 return pager_request(view, request, line);
3627 static struct view_ops log_ops = {
3638 static const char *diff_argv[SIZEOF_ARG] = {
3639 "git", "show", "--pretty=fuller", "--no-color", "--root",
3640 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3643 static struct view_ops diff_ops = {
3659 help_open(struct view *view)
3661 char buf[SIZEOF_STR];
3665 if (view->lines > 0)
3668 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3670 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3673 if (req_info[i].request == REQ_NONE)
3676 if (!req_info[i].request) {
3677 add_line_text(view, "", LINE_DEFAULT);
3678 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3682 key = get_key(req_info[i].request);
3684 key = "(no key defined)";
3686 for (bufpos = 0; bufpos <= req_info[i].namelen; bufpos++) {
3687 buf[bufpos] = tolower(req_info[i].name[bufpos]);
3688 if (buf[bufpos] == '_')
3692 add_line_format(view, LINE_DEFAULT, " %-25s %-20s %s",
3693 key, buf, req_info[i].help);
3697 add_line_text(view, "", LINE_DEFAULT);
3698 add_line_text(view, "External commands:", LINE_DEFAULT);
3701 for (i = 0; i < run_requests; i++) {
3702 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3709 key = get_key_name(req->key);
3711 key = "(no key defined)";
3713 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3714 if (!string_format_from(buf, &bufpos, "%s%s",
3715 argc ? " " : "", req->argv[argc]))
3718 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3719 keymap_table[req->keymap].name, key, buf);
3725 static struct view_ops help_ops = {
3741 struct tree_stack_entry {
3742 struct tree_stack_entry *prev; /* Entry below this in the stack */
3743 unsigned long lineno; /* Line number to restore */
3744 char *name; /* Position of name in opt_path */
3747 /* The top of the path stack. */
3748 static struct tree_stack_entry *tree_stack = NULL;
3749 unsigned long tree_lineno = 0;
3752 pop_tree_stack_entry(void)
3754 struct tree_stack_entry *entry = tree_stack;
3756 tree_lineno = entry->lineno;
3758 tree_stack = entry->prev;
3763 push_tree_stack_entry(const char *name, unsigned long lineno)
3765 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3766 size_t pathlen = strlen(opt_path);
3771 entry->prev = tree_stack;
3772 entry->name = opt_path + pathlen;
3775 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3776 pop_tree_stack_entry();
3780 /* Move the current line to the first tree entry. */
3782 entry->lineno = lineno;
3785 /* Parse output from git-ls-tree(1):
3787 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3790 #define SIZEOF_TREE_ATTR \
3791 STRING_SIZE("100644 blob f931e1d229c3e185caad4449bf5b66ed72462657\t")
3793 #define SIZEOF_TREE_MODE \
3794 STRING_SIZE("100644 ")
3796 #define TREE_ID_OFFSET \
3797 STRING_SIZE("100644 blob ")
3800 char id[SIZEOF_REV];
3802 struct tm time; /* Date from the author ident. */
3803 char author[75]; /* Author of the commit. */
3808 tree_path(struct line *line)
3810 return ((struct tree_entry *) line->data)->name;
3815 tree_compare_entry(struct line *line1, struct line *line2)
3817 if (line1->type != line2->type)
3818 return line1->type == LINE_TREE_DIR ? -1 : 1;
3819 return strcmp(tree_path(line1), tree_path(line2));
3822 static struct line *
3823 tree_entry(struct view *view, enum line_type type, const char *path,
3824 const char *mode, const char *id)
3826 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3827 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3829 if (!entry || !line) {
3834 strncpy(entry->name, path, strlen(path));
3836 entry->mode = strtoul(mode, NULL, 8);
3838 string_copy_rev(entry->id, id);
3844 tree_read_date(struct view *view, char *text, bool *read_date)
3846 static char author_name[SIZEOF_STR];
3847 static struct tm author_time;
3849 if (!text && *read_date) {
3854 char *path = *opt_path ? opt_path : ".";
3855 /* Find next entry to process */
3856 const char *log_file[] = {
3857 "git", "log", "--no-color", "--pretty=raw",
3858 "--cc", "--raw", view->id, "--", path, NULL
3863 tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL);
3864 report("Tree is empty");
3868 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3869 report("Failed to load tree data");
3873 done_io(view->pipe);
3878 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3879 parse_author_line(text + STRING_SIZE("author "),
3880 author_name, sizeof(author_name), &author_time);
3882 } else if (*text == ':') {
3884 size_t annotated = 1;
3887 pos = strchr(text, '\t');
3891 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3892 text += strlen(opt_prefix);
3893 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3894 text += strlen(opt_path);
3895 pos = strchr(text, '/');
3899 for (i = 1; i < view->lines; i++) {
3900 struct line *line = &view->line[i];
3901 struct tree_entry *entry = line->data;
3903 annotated += !!*entry->author;
3904 if (*entry->author || strcmp(entry->name, text))
3907 string_copy(entry->author, author_name);
3908 memcpy(&entry->time, &author_time, sizeof(entry->time));
3913 if (annotated == view->lines)
3914 kill_io(view->pipe);
3920 tree_read(struct view *view, char *text)
3922 static bool read_date = FALSE;
3923 struct tree_entry *data;
3924 struct line *entry, *line;
3925 enum line_type type;
3926 size_t textlen = text ? strlen(text) : 0;
3927 char *path = text + SIZEOF_TREE_ATTR;
3929 if (read_date || !text)
3930 return tree_read_date(view, text, &read_date);
3932 if (textlen <= SIZEOF_TREE_ATTR)
3934 if (view->lines == 0 &&
3935 !tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL))
3938 /* Strip the path part ... */
3940 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3941 size_t striplen = strlen(opt_path);
3943 if (pathlen > striplen)
3944 memmove(path, path + striplen,
3945 pathlen - striplen + 1);
3947 /* Insert "link" to parent directory. */
3948 if (view->lines == 1 &&
3949 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3953 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
3954 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3959 /* Skip "Directory ..." and ".." line. */
3960 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3961 if (tree_compare_entry(line, entry) <= 0)
3964 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3968 for (; line <= entry; line++)
3969 line->dirty = line->cleareol = 1;
3973 if (tree_lineno > view->lineno) {
3974 view->lineno = tree_lineno;
3982 tree_draw(struct view *view, struct line *line, unsigned int lineno)
3984 struct tree_entry *entry = line->data;
3986 if (line->type == LINE_TREE_HEAD) {
3987 if (draw_text(view, line->type, "Directory path /", TRUE))
3990 if (draw_mode(view, entry->mode))
3993 if (opt_author && draw_author(view, entry->author))
3996 if (opt_date && draw_date(view, *entry->author ? &entry->time : NULL))
3999 if (draw_text(view, line->type, entry->name, TRUE))
4007 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
4008 int fd = mkstemp(file);
4011 report("Failed to create temporary file");
4012 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
4013 report("Failed to save blob data to file");
4015 open_editor(FALSE, file);
4021 tree_request(struct view *view, enum request request, struct line *line)
4023 enum open_flags flags;
4026 case REQ_VIEW_BLAME:
4027 if (line->type != LINE_TREE_FILE) {
4028 report("Blame only supported for files");
4032 string_copy(opt_ref, view->vid);
4036 if (line->type != LINE_TREE_FILE) {
4037 report("Edit only supported for files");
4038 } else if (!is_head_commit(view->vid)) {
4041 open_editor(TRUE, opt_file);
4047 /* quit view if at top of tree */
4048 return REQ_VIEW_CLOSE;
4051 line = &view->line[1];
4061 /* Cleanup the stack if the tree view is at a different tree. */
4062 while (!*opt_path && tree_stack)
4063 pop_tree_stack_entry();
4065 switch (line->type) {
4067 /* Depending on whether it is a subdirectory or parent link
4068 * mangle the path buffer. */
4069 if (line == &view->line[1] && *opt_path) {
4070 pop_tree_stack_entry();
4073 const char *basename = tree_path(line);
4075 push_tree_stack_entry(basename, view->lineno);
4078 /* Trees and subtrees share the same ID, so they are not not
4079 * unique like blobs. */
4080 flags = OPEN_RELOAD;
4081 request = REQ_VIEW_TREE;
4084 case LINE_TREE_FILE:
4085 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4086 request = REQ_VIEW_BLOB;
4093 open_view(view, request, flags);
4094 if (request == REQ_VIEW_TREE)
4095 view->lineno = tree_lineno;
4101 tree_select(struct view *view, struct line *line)
4103 struct tree_entry *entry = line->data;
4105 if (line->type == LINE_TREE_FILE) {
4106 string_copy_rev(ref_blob, entry->id);
4107 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4109 } else if (line->type != LINE_TREE_DIR) {
4113 string_copy_rev(view->ref, entry->id);
4116 static const char *tree_argv[SIZEOF_ARG] = {
4117 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4120 static struct view_ops tree_ops = {
4132 blob_read(struct view *view, char *line)
4136 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4140 blob_request(struct view *view, enum request request, struct line *line)
4147 return pager_request(view, request, line);
4151 static const char *blob_argv[SIZEOF_ARG] = {
4152 "git", "cat-file", "blob", "%(blob)", NULL
4155 static struct view_ops blob_ops = {
4169 * Loading the blame view is a two phase job:
4171 * 1. File content is read either using opt_file from the
4172 * filesystem or using git-cat-file.
4173 * 2. Then blame information is incrementally added by
4174 * reading output from git-blame.
4177 static const char *blame_head_argv[] = {
4178 "git", "blame", "--incremental", "--", "%(file)", NULL
4181 static const char *blame_ref_argv[] = {
4182 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4185 static const char *blame_cat_file_argv[] = {
4186 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4189 struct blame_commit {
4190 char id[SIZEOF_REV]; /* SHA1 ID. */
4191 char title[128]; /* First line of the commit message. */
4192 char author[75]; /* Author of the commit. */
4193 struct tm time; /* Date from the author ident. */
4194 char filename[128]; /* Name of file. */
4195 bool has_previous; /* Was a "previous" line detected. */
4199 struct blame_commit *commit;
4200 unsigned long lineno;
4205 blame_open(struct view *view)
4207 if (*opt_ref || !io_open(&view->io, opt_file)) {
4208 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4212 setup_update(view, opt_file);
4213 string_format(view->ref, "%s ...", opt_file);
4218 static struct blame_commit *
4219 get_blame_commit(struct view *view, const char *id)
4223 for (i = 0; i < view->lines; i++) {
4224 struct blame *blame = view->line[i].data;
4229 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4230 return blame->commit;
4234 struct blame_commit *commit = calloc(1, sizeof(*commit));
4237 string_ncopy(commit->id, id, SIZEOF_REV);
4243 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4245 const char *pos = *posref;
4248 pos = strchr(pos + 1, ' ');
4249 if (!pos || !isdigit(pos[1]))
4251 *number = atoi(pos + 1);
4252 if (*number < min || *number > max)
4259 static struct blame_commit *
4260 parse_blame_commit(struct view *view, const char *text, int *blamed)
4262 struct blame_commit *commit;
4263 struct blame *blame;
4264 const char *pos = text + SIZEOF_REV - 2;
4265 size_t orig_lineno = 0;
4269 if (strlen(text) <= SIZEOF_REV || pos[1] != ' ')
4272 if (!parse_number(&pos, &orig_lineno, 1, 9999999) ||
4273 !parse_number(&pos, &lineno, 1, view->lines) ||
4274 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4277 commit = get_blame_commit(view, text);
4283 struct line *line = &view->line[lineno + group - 1];
4286 blame->commit = commit;
4287 blame->lineno = orig_lineno + group - 1;
4295 blame_read_file(struct view *view, const char *line, bool *read_file)
4298 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4301 if (view->lines == 0 && !view->parent)
4302 die("No blame exist for %s", view->vid);
4304 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4305 report("Failed to load blame data");
4309 done_io(view->pipe);
4315 size_t linelen = strlen(line);
4316 struct blame *blame = malloc(sizeof(*blame) + linelen);
4321 blame->commit = NULL;
4322 strncpy(blame->text, line, linelen);
4323 blame->text[linelen] = 0;
4324 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4329 match_blame_header(const char *name, char **line)
4331 size_t namelen = strlen(name);
4332 bool matched = !strncmp(name, *line, namelen);
4341 blame_read(struct view *view, char *line)
4343 static struct blame_commit *commit = NULL;
4344 static int blamed = 0;
4345 static time_t author_time;
4346 static bool read_file = TRUE;
4349 return blame_read_file(view, line, &read_file);
4356 string_format(view->ref, "%s", view->vid);
4357 if (view_is_displayed(view)) {
4358 update_view_title(view);
4359 redraw_view_from(view, 0);
4365 commit = parse_blame_commit(view, line, &blamed);
4366 string_format(view->ref, "%s %2d%%", view->vid,
4367 view->lines ? blamed * 100 / view->lines : 0);
4369 } else if (match_blame_header("author ", &line)) {
4370 string_ncopy(commit->author, line, strlen(line));
4372 } else if (match_blame_header("author-time ", &line)) {
4373 author_time = (time_t) atol(line);
4375 } else if (match_blame_header("author-tz ", &line)) {
4376 parse_timezone(&author_time, line);
4377 gmtime_r(&author_time, &commit->time);
4379 } else if (match_blame_header("summary ", &line)) {
4380 string_ncopy(commit->title, line, strlen(line));
4382 } else if (match_blame_header("previous ", &line)) {
4383 commit->has_previous = TRUE;
4385 } else if (match_blame_header("filename ", &line)) {
4386 string_ncopy(commit->filename, line, strlen(line));
4394 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4396 struct blame *blame = line->data;
4397 struct tm *time = NULL;
4398 const char *id = NULL, *author = NULL;
4399 char text[SIZEOF_STR];
4401 if (blame->commit && *blame->commit->filename) {
4402 id = blame->commit->id;
4403 author = blame->commit->author;
4404 time = &blame->commit->time;
4407 if (opt_date && draw_date(view, time))
4410 if (opt_author && draw_author(view, author))
4413 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4416 if (draw_lineno(view, lineno))
4419 string_expand(text, sizeof(text), blame->text, opt_tab_size);
4420 draw_text(view, LINE_DEFAULT, text, TRUE);
4425 check_blame_commit(struct blame *blame, bool check_null_id)
4428 report("Commit data not loaded yet");
4429 else if (check_null_id && !strcmp(blame->commit->id, NULL_ID))
4430 report("No commit exist for the selected line");
4437 setup_blame_parent_line(struct view *view, struct blame *blame)
4439 const char *diff_tree_argv[] = {
4440 "git", "diff-tree", "-U0", blame->commit->id,
4441 "--", blame->commit->filename, NULL
4444 int parent_lineno = -1;
4445 int blamed_lineno = -1;
4448 if (!run_io(&io, diff_tree_argv, NULL, IO_RD))
4451 while ((line = io_get(&io, '\n', TRUE))) {
4453 char *pos = strchr(line, '+');
4455 parent_lineno = atoi(line + 4);
4457 blamed_lineno = atoi(pos + 1);
4459 } else if (*line == '+' && parent_lineno != -1) {
4460 if (blame->lineno == blamed_lineno - 1 &&
4461 !strcmp(blame->text, line + 1)) {
4462 view->lineno = parent_lineno ? parent_lineno - 1 : 0;
4473 blame_request(struct view *view, enum request request, struct line *line)
4475 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4476 struct blame *blame = line->data;
4479 case REQ_VIEW_BLAME:
4480 if (check_blame_commit(blame, TRUE)) {
4481 string_copy(opt_ref, blame->commit->id);
4482 string_copy(opt_file, blame->commit->filename);
4484 view->lineno = blame->lineno;
4485 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4490 if (check_blame_commit(blame, TRUE) &&
4491 select_commit_parent(blame->commit->id, opt_ref,
4492 blame->commit->filename)) {
4493 string_copy(opt_file, blame->commit->filename);
4494 setup_blame_parent_line(view, blame);
4495 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4500 if (!check_blame_commit(blame, FALSE))
4503 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4504 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4507 if (!strcmp(blame->commit->id, NULL_ID)) {
4508 struct view *diff = VIEW(REQ_VIEW_DIFF);
4509 const char *diff_index_argv[] = {
4510 "git", "diff-index", "--root", "--patch-with-stat",
4511 "-C", "-M", "HEAD", "--", view->vid, NULL
4514 if (!blame->commit->has_previous) {
4515 diff_index_argv[1] = "diff";
4516 diff_index_argv[2] = "--no-color";
4517 diff_index_argv[6] = "--";
4518 diff_index_argv[7] = "/dev/null";
4521 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4522 report("Failed to allocate diff command");
4525 flags |= OPEN_PREPARED;
4528 open_view(view, REQ_VIEW_DIFF, flags);
4529 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4530 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4541 blame_grep(struct view *view, struct line *line)
4543 struct blame *blame = line->data;
4544 struct blame_commit *commit = blame->commit;
4547 #define MATCH(text, on) \
4548 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4551 char buf[DATE_COLS + 1];
4553 if (MATCH(commit->title, 1) ||
4554 MATCH(commit->author, opt_author) ||
4555 MATCH(commit->id, opt_date))
4558 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4563 return MATCH(blame->text, 1);
4569 blame_select(struct view *view, struct line *line)
4571 struct blame *blame = line->data;
4572 struct blame_commit *commit = blame->commit;
4577 if (!strcmp(commit->id, NULL_ID))
4578 string_ncopy(ref_commit, "HEAD", 4);
4580 string_copy_rev(ref_commit, commit->id);
4583 static struct view_ops blame_ops = {
4602 char rev[SIZEOF_REV];
4603 char name[SIZEOF_STR];
4607 char rev[SIZEOF_REV];
4608 char name[SIZEOF_STR];
4612 static char status_onbranch[SIZEOF_STR];
4613 static struct status stage_status;
4614 static enum line_type stage_line_type;
4615 static size_t stage_chunks;
4616 static int *stage_chunk;
4618 /* This should work even for the "On branch" line. */
4620 status_has_none(struct view *view, struct line *line)
4622 return line < view->line + view->lines && !line[1].data;
4625 /* Get fields from the diff line:
4626 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4629 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4631 const char *old_mode = buf + 1;
4632 const char *new_mode = buf + 8;
4633 const char *old_rev = buf + 15;
4634 const char *new_rev = buf + 56;
4635 const char *status = buf + 97;
4638 old_mode[-1] != ':' ||
4639 new_mode[-1] != ' ' ||
4640 old_rev[-1] != ' ' ||
4641 new_rev[-1] != ' ' ||
4645 file->status = *status;
4647 string_copy_rev(file->old.rev, old_rev);
4648 string_copy_rev(file->new.rev, new_rev);
4650 file->old.mode = strtoul(old_mode, NULL, 8);
4651 file->new.mode = strtoul(new_mode, NULL, 8);
4653 file->old.name[0] = file->new.name[0] = 0;
4659 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4661 struct status *unmerged = NULL;
4665 if (!run_io(&io, argv, NULL, IO_RD))
4668 add_line_data(view, NULL, type);
4670 while ((buf = io_get(&io, 0, TRUE))) {
4671 struct status *file = unmerged;
4674 file = calloc(1, sizeof(*file));
4675 if (!file || !add_line_data(view, file, type))
4679 /* Parse diff info part. */
4681 file->status = status;
4683 string_copy(file->old.rev, NULL_ID);
4685 } else if (!file->status || file == unmerged) {
4686 if (!status_get_diff(file, buf, strlen(buf)))
4689 buf = io_get(&io, 0, TRUE);
4693 /* Collapse all modified entries that follow an
4694 * associated unmerged entry. */
4695 if (unmerged == file) {
4696 unmerged->status = 'U';
4698 } else if (file->status == 'U') {
4703 /* Grab the old name for rename/copy. */
4704 if (!*file->old.name &&
4705 (file->status == 'R' || file->status == 'C')) {
4706 string_ncopy(file->old.name, buf, strlen(buf));
4708 buf = io_get(&io, 0, TRUE);
4713 /* git-ls-files just delivers a NUL separated list of
4714 * file names similar to the second half of the
4715 * git-diff-* output. */
4716 string_ncopy(file->new.name, buf, strlen(buf));
4717 if (!*file->old.name)
4718 string_copy(file->old.name, file->new.name);
4722 if (io_error(&io)) {
4728 if (!view->line[view->lines - 1].data)
4729 add_line_data(view, NULL, LINE_STAT_NONE);
4735 /* Don't show unmerged entries in the staged section. */
4736 static const char *status_diff_index_argv[] = {
4737 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4738 "--cached", "-M", "HEAD", NULL
4741 static const char *status_diff_files_argv[] = {
4742 "git", "diff-files", "-z", NULL
4745 static const char *status_list_other_argv[] = {
4746 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4749 static const char *status_list_no_head_argv[] = {
4750 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4753 static const char *update_index_argv[] = {
4754 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4757 /* Restore the previous line number to stay in the context or select a
4758 * line with something that can be updated. */
4760 status_restore(struct view *view)
4762 if (view->p_lineno >= view->lines)
4763 view->p_lineno = view->lines - 1;
4764 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4766 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4769 /* If the above fails, always skip the "On branch" line. */
4770 if (view->p_lineno < view->lines)
4771 view->lineno = view->p_lineno;
4775 if (view->lineno < view->offset)
4776 view->offset = view->lineno;
4777 else if (view->offset + view->height <= view->lineno)
4778 view->offset = view->lineno - view->height + 1;
4780 view->p_restore = FALSE;
4784 status_update_onbranch(void)
4786 static const char *paths[][2] = {
4787 { "rebase-apply/rebasing", "Rebasing" },
4788 { "rebase-apply/applying", "Applying mailbox" },
4789 { "rebase-apply/", "Rebasing mailbox" },
4790 { "rebase-merge/interactive", "Interactive rebase" },
4791 { "rebase-merge/", "Rebase merge" },
4792 { "MERGE_HEAD", "Merging" },
4793 { "BISECT_LOG", "Bisecting" },
4794 { "HEAD", "On branch" },
4796 char buf[SIZEOF_STR];
4800 if (is_initial_commit()) {
4801 string_copy(status_onbranch, "Initial commit");
4805 for (i = 0; i < ARRAY_SIZE(paths); i++) {
4806 char *head = opt_head;
4808 if (!string_format(buf, "%s/%s", opt_git_dir, paths[i][0]) ||
4809 lstat(buf, &stat) < 0)
4815 if (string_format(buf, "%s/rebase-merge/head-name", opt_git_dir) &&
4816 io_open(&io, buf) &&
4817 io_read_buf(&io, buf, sizeof(buf))) {
4818 head = chomp_string(buf);
4819 if (!prefixcmp(head, "refs/heads/"))
4820 head += STRING_SIZE("refs/heads/");
4824 if (!string_format(status_onbranch, "%s %s", paths[i][1], head))
4825 string_copy(status_onbranch, opt_head);
4829 string_copy(status_onbranch, "Not currently on any branch");
4832 /* First parse staged info using git-diff-index(1), then parse unstaged
4833 * info using git-diff-files(1), and finally untracked files using
4834 * git-ls-files(1). */
4836 status_open(struct view *view)
4840 add_line_data(view, NULL, LINE_STAT_HEAD);
4841 status_update_onbranch();
4843 run_io_bg(update_index_argv);
4845 if (is_initial_commit()) {
4846 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4848 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4852 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4853 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4856 /* Restore the exact position or use the specialized restore
4858 if (!view->p_restore)
4859 status_restore(view);
4864 status_draw(struct view *view, struct line *line, unsigned int lineno)
4866 struct status *status = line->data;
4867 enum line_type type;
4871 switch (line->type) {
4872 case LINE_STAT_STAGED:
4873 type = LINE_STAT_SECTION;
4874 text = "Changes to be committed:";
4877 case LINE_STAT_UNSTAGED:
4878 type = LINE_STAT_SECTION;
4879 text = "Changed but not updated:";
4882 case LINE_STAT_UNTRACKED:
4883 type = LINE_STAT_SECTION;
4884 text = "Untracked files:";
4887 case LINE_STAT_NONE:
4888 type = LINE_DEFAULT;
4889 text = " (no files)";
4892 case LINE_STAT_HEAD:
4893 type = LINE_STAT_HEAD;
4894 text = status_onbranch;
4901 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4903 buf[0] = status->status;
4904 if (draw_text(view, line->type, buf, TRUE))
4906 type = LINE_DEFAULT;
4907 text = status->new.name;
4910 draw_text(view, type, text, TRUE);
4915 status_load_error(struct view *view, struct view *stage, const char *path)
4917 if (displayed_views() == 2 || display[current_view] != view)
4918 maximize_view(view);
4919 report("Failed to load '%s': %s", path, io_strerror(&stage->io));
4924 status_enter(struct view *view, struct line *line)
4926 struct status *status = line->data;
4927 const char *oldpath = status ? status->old.name : NULL;
4928 /* Diffs for unmerged entries are empty when passing the new
4929 * path, so leave it empty. */
4930 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4932 enum open_flags split;
4933 struct view *stage = VIEW(REQ_VIEW_STAGE);
4935 if (line->type == LINE_STAT_NONE ||
4936 (!status && line[1].type == LINE_STAT_NONE)) {
4937 report("No file to diff");
4941 switch (line->type) {
4942 case LINE_STAT_STAGED:
4943 if (is_initial_commit()) {
4944 const char *no_head_diff_argv[] = {
4945 "git", "diff", "--no-color", "--patch-with-stat",
4946 "--", "/dev/null", newpath, NULL
4949 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4950 return status_load_error(view, stage, newpath);
4952 const char *index_show_argv[] = {
4953 "git", "diff-index", "--root", "--patch-with-stat",
4954 "-C", "-M", "--cached", "HEAD", "--",
4955 oldpath, newpath, NULL
4958 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4959 return status_load_error(view, stage, newpath);
4963 info = "Staged changes to %s";
4965 info = "Staged changes";
4968 case LINE_STAT_UNSTAGED:
4970 const char *files_show_argv[] = {
4971 "git", "diff-files", "--root", "--patch-with-stat",
4972 "-C", "-M", "--", oldpath, newpath, NULL
4975 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4976 return status_load_error(view, stage, newpath);
4978 info = "Unstaged changes to %s";
4980 info = "Unstaged changes";
4983 case LINE_STAT_UNTRACKED:
4985 report("No file to show");
4989 if (!suffixcmp(status->new.name, -1, "/")) {
4990 report("Cannot display a directory");
4994 if (!prepare_update_file(stage, newpath))
4995 return status_load_error(view, stage, newpath);
4996 info = "Untracked file %s";
4999 case LINE_STAT_HEAD:
5003 die("line type %d not handled in switch", line->type);
5006 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
5007 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
5008 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
5010 stage_status = *status;
5012 memset(&stage_status, 0, sizeof(stage_status));
5015 stage_line_type = line->type;
5017 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
5024 status_exists(struct status *status, enum line_type type)
5026 struct view *view = VIEW(REQ_VIEW_STATUS);
5027 unsigned long lineno;
5029 for (lineno = 0; lineno < view->lines; lineno++) {
5030 struct line *line = &view->line[lineno];
5031 struct status *pos = line->data;
5033 if (line->type != type)
5035 if (!pos && (!status || !status->status) && line[1].data) {
5036 select_view_line(view, lineno);
5039 if (pos && !strcmp(status->new.name, pos->new.name)) {
5040 select_view_line(view, lineno);
5050 status_update_prepare(struct io *io, enum line_type type)
5052 const char *staged_argv[] = {
5053 "git", "update-index", "-z", "--index-info", NULL
5055 const char *others_argv[] = {
5056 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
5060 case LINE_STAT_STAGED:
5061 return run_io(io, staged_argv, opt_cdup, IO_WR);
5063 case LINE_STAT_UNSTAGED:
5064 return run_io(io, others_argv, opt_cdup, IO_WR);
5066 case LINE_STAT_UNTRACKED:
5067 return run_io(io, others_argv, NULL, IO_WR);
5070 die("line type %d not handled in switch", type);
5076 status_update_write(struct io *io, struct status *status, enum line_type type)
5078 char buf[SIZEOF_STR];
5082 case LINE_STAT_STAGED:
5083 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
5086 status->old.name, 0))
5090 case LINE_STAT_UNSTAGED:
5091 case LINE_STAT_UNTRACKED:
5092 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
5097 die("line type %d not handled in switch", type);
5100 return io_write(io, buf, bufsize);
5104 status_update_file(struct status *status, enum line_type type)
5109 if (!status_update_prepare(&io, type))
5112 result = status_update_write(&io, status, type);
5113 return done_io(&io) && result;
5117 status_update_files(struct view *view, struct line *line)
5119 char buf[sizeof(view->ref)];
5122 struct line *pos = view->line + view->lines;
5126 if (!status_update_prepare(&io, line->type))
5129 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5132 string_copy(buf, view->ref);
5133 for (file = 0, done = 5; result && file < files; line++, file++) {
5134 int almost_done = file * 100 / files;
5136 if (almost_done > done) {
5138 string_format(view->ref, "updating file %u of %u (%d%% done)",
5140 update_view_title(view);
5143 result = status_update_write(&io, line->data, line->type);
5145 string_copy(view->ref, buf);
5147 return done_io(&io) && result;
5151 status_update(struct view *view)
5153 struct line *line = &view->line[view->lineno];
5155 assert(view->lines);
5158 /* This should work even for the "On branch" line. */
5159 if (line < view->line + view->lines && !line[1].data) {
5160 report("Nothing to update");
5164 if (!status_update_files(view, line + 1)) {
5165 report("Failed to update file status");
5169 } else if (!status_update_file(line->data, line->type)) {
5170 report("Failed to update file status");
5178 status_revert(struct status *status, enum line_type type, bool has_none)
5180 if (!status || type != LINE_STAT_UNSTAGED) {
5181 if (type == LINE_STAT_STAGED) {
5182 report("Cannot revert changes to staged files");
5183 } else if (type == LINE_STAT_UNTRACKED) {
5184 report("Cannot revert changes to untracked files");
5185 } else if (has_none) {
5186 report("Nothing to revert");
5188 report("Cannot revert changes to multiple files");
5193 char mode[10] = "100644";
5194 const char *reset_argv[] = {
5195 "git", "update-index", "--cacheinfo", mode,
5196 status->old.rev, status->old.name, NULL
5198 const char *checkout_argv[] = {
5199 "git", "checkout", "--", status->old.name, NULL
5202 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5204 string_format(mode, "%o", status->old.mode);
5205 return (status->status != 'U' || run_io_fg(reset_argv, opt_cdup)) &&
5206 run_io_fg(checkout_argv, opt_cdup);
5211 status_request(struct view *view, enum request request, struct line *line)
5213 struct status *status = line->data;
5216 case REQ_STATUS_UPDATE:
5217 if (!status_update(view))
5221 case REQ_STATUS_REVERT:
5222 if (!status_revert(status, line->type, status_has_none(view, line)))
5226 case REQ_STATUS_MERGE:
5227 if (!status || status->status != 'U') {
5228 report("Merging only possible for files with unmerged status ('U').");
5231 open_mergetool(status->new.name);
5237 if (status->status == 'D') {
5238 report("File has been deleted.");
5242 open_editor(status->status != '?', status->new.name);
5245 case REQ_VIEW_BLAME:
5247 string_copy(opt_file, status->new.name);
5253 /* After returning the status view has been split to
5254 * show the stage view. No further reloading is
5256 return status_enter(view, line);
5259 /* Simply reload the view. */
5266 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5272 status_select(struct view *view, struct line *line)
5274 struct status *status = line->data;
5275 char file[SIZEOF_STR] = "all files";
5279 if (status && !string_format(file, "'%s'", status->new.name))
5282 if (!status && line[1].type == LINE_STAT_NONE)
5285 switch (line->type) {
5286 case LINE_STAT_STAGED:
5287 text = "Press %s to unstage %s for commit";
5290 case LINE_STAT_UNSTAGED:
5291 text = "Press %s to stage %s for commit";
5294 case LINE_STAT_UNTRACKED:
5295 text = "Press %s to stage %s for addition";
5298 case LINE_STAT_HEAD:
5299 case LINE_STAT_NONE:
5300 text = "Nothing to update";
5304 die("line type %d not handled in switch", line->type);
5307 if (status && status->status == 'U') {
5308 text = "Press %s to resolve conflict in %s";
5309 key = get_key(REQ_STATUS_MERGE);
5312 key = get_key(REQ_STATUS_UPDATE);
5315 string_format(view->ref, text, key, file);
5319 status_grep(struct view *view, struct line *line)
5321 struct status *status = line->data;
5322 enum { S_STATUS, S_NAME, S_END } state;
5329 for (state = S_STATUS; state < S_END; state++) {
5333 case S_NAME: text = status->new.name; break;
5335 buf[0] = status->status;
5343 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5350 static struct view_ops status_ops = {
5363 stage_diff_write(struct io *io, struct line *line, struct line *end)
5365 while (line < end) {
5366 if (!io_write(io, line->data, strlen(line->data)) ||
5367 !io_write(io, "\n", 1))
5370 if (line->type == LINE_DIFF_CHUNK ||
5371 line->type == LINE_DIFF_HEADER)
5378 static struct line *
5379 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5381 for (; view->line < line; line--)
5382 if (line->type == type)
5389 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5391 const char *apply_argv[SIZEOF_ARG] = {
5392 "git", "apply", "--whitespace=nowarn", NULL
5394 struct line *diff_hdr;
5398 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5403 apply_argv[argc++] = "--cached";
5404 if (revert || stage_line_type == LINE_STAT_STAGED)
5405 apply_argv[argc++] = "-R";
5406 apply_argv[argc++] = "-";
5407 apply_argv[argc++] = NULL;
5408 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5411 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5412 !stage_diff_write(&io, chunk, view->line + view->lines))
5416 run_io_bg(update_index_argv);
5418 return chunk ? TRUE : FALSE;
5422 stage_update(struct view *view, struct line *line)
5424 struct line *chunk = NULL;
5426 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5427 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5430 if (!stage_apply_chunk(view, chunk, FALSE)) {
5431 report("Failed to apply chunk");
5435 } else if (!stage_status.status) {
5436 view = VIEW(REQ_VIEW_STATUS);
5438 for (line = view->line; line < view->line + view->lines; line++)
5439 if (line->type == stage_line_type)
5442 if (!status_update_files(view, line + 1)) {
5443 report("Failed to update files");
5447 } else if (!status_update_file(&stage_status, stage_line_type)) {
5448 report("Failed to update file");
5456 stage_revert(struct view *view, struct line *line)
5458 struct line *chunk = NULL;
5460 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5461 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5464 if (!prompt_yesno("Are you sure you want to revert changes?"))
5467 if (!stage_apply_chunk(view, chunk, TRUE)) {
5468 report("Failed to revert chunk");
5474 return status_revert(stage_status.status ? &stage_status : NULL,
5475 stage_line_type, FALSE);
5481 stage_next(struct view *view, struct line *line)
5485 if (!stage_chunks) {
5486 static size_t alloc = 0;
5489 for (line = view->line; line < view->line + view->lines; line++) {
5490 if (line->type != LINE_DIFF_CHUNK)
5493 tmp = realloc_items(stage_chunk, &alloc,
5494 stage_chunks, sizeof(*tmp));
5496 report("Allocation failure");
5501 stage_chunk[stage_chunks++] = line - view->line;
5505 for (i = 0; i < stage_chunks; i++) {
5506 if (stage_chunk[i] > view->lineno) {
5507 do_scroll_view(view, stage_chunk[i] - view->lineno);
5508 report("Chunk %d of %d", i + 1, stage_chunks);
5513 report("No next chunk found");
5517 stage_request(struct view *view, enum request request, struct line *line)
5520 case REQ_STATUS_UPDATE:
5521 if (!stage_update(view, line))
5525 case REQ_STATUS_REVERT:
5526 if (!stage_revert(view, line))
5530 case REQ_STAGE_NEXT:
5531 if (stage_line_type == LINE_STAT_UNTRACKED) {
5532 report("File is untracked; press %s to add",
5533 get_key(REQ_STATUS_UPDATE));
5536 stage_next(view, line);
5540 if (!stage_status.new.name[0])
5542 if (stage_status.status == 'D') {
5543 report("File has been deleted.");
5547 open_editor(stage_status.status != '?', stage_status.new.name);
5551 /* Reload everything ... */
5554 case REQ_VIEW_BLAME:
5555 if (stage_status.new.name[0]) {
5556 string_copy(opt_file, stage_status.new.name);
5562 return pager_request(view, request, line);
5568 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5569 open_view(view, REQ_VIEW_STATUS, OPEN_REFRESH);
5571 /* Check whether the staged entry still exists, and close the
5572 * stage view if it doesn't. */
5573 if (!status_exists(&stage_status, stage_line_type)) {
5574 status_restore(VIEW(REQ_VIEW_STATUS));
5575 return REQ_VIEW_CLOSE;
5578 if (stage_line_type == LINE_STAT_UNTRACKED) {
5579 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5580 report("Cannot display a directory");
5584 if (!prepare_update_file(view, stage_status.new.name)) {
5585 report("Failed to open file: %s", strerror(errno));
5589 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5594 static struct view_ops stage_ops = {
5611 char id[SIZEOF_REV]; /* SHA1 ID. */
5612 char title[128]; /* First line of the commit message. */
5613 char author[75]; /* Author of the commit. */
5614 struct tm time; /* Date from the author ident. */
5615 struct ref **refs; /* Repository references. */
5616 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5617 size_t graph_size; /* The width of the graph array. */
5618 bool has_parents; /* Rewritten --parents seen. */
5621 /* Size of rev graph with no "padding" columns */
5622 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5625 struct rev_graph *prev, *next, *parents;
5626 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5628 struct commit *commit;
5630 unsigned int boundary:1;
5633 /* Parents of the commit being visualized. */
5634 static struct rev_graph graph_parents[4];
5636 /* The current stack of revisions on the graph. */
5637 static struct rev_graph graph_stacks[4] = {
5638 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5639 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5640 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5641 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5645 graph_parent_is_merge(struct rev_graph *graph)
5647 return graph->parents->size > 1;
5651 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5653 struct commit *commit = graph->commit;
5655 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5656 commit->graph[commit->graph_size++] = symbol;
5660 clear_rev_graph(struct rev_graph *graph)
5662 graph->boundary = 0;
5663 graph->size = graph->pos = 0;
5664 graph->commit = NULL;
5665 memset(graph->parents, 0, sizeof(*graph->parents));
5669 done_rev_graph(struct rev_graph *graph)
5671 if (graph_parent_is_merge(graph) &&
5672 graph->pos < graph->size - 1 &&
5673 graph->next->size == graph->size + graph->parents->size - 1) {
5674 size_t i = graph->pos + graph->parents->size - 1;
5676 graph->commit->graph_size = i * 2;
5677 while (i < graph->next->size - 1) {
5678 append_to_rev_graph(graph, ' ');
5679 append_to_rev_graph(graph, '\\');
5684 clear_rev_graph(graph);
5688 push_rev_graph(struct rev_graph *graph, const char *parent)
5692 /* "Collapse" duplicate parents lines.
5694 * FIXME: This needs to also update update the drawn graph but
5695 * for now it just serves as a method for pruning graph lines. */
5696 for (i = 0; i < graph->size; i++)
5697 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5700 if (graph->size < SIZEOF_REVITEMS) {
5701 string_copy_rev(graph->rev[graph->size++], parent);
5706 get_rev_graph_symbol(struct rev_graph *graph)
5710 if (graph->boundary)
5711 symbol = REVGRAPH_BOUND;
5712 else if (graph->parents->size == 0)
5713 symbol = REVGRAPH_INIT;
5714 else if (graph_parent_is_merge(graph))
5715 symbol = REVGRAPH_MERGE;
5716 else if (graph->pos >= graph->size)
5717 symbol = REVGRAPH_BRANCH;
5719 symbol = REVGRAPH_COMMIT;
5725 draw_rev_graph(struct rev_graph *graph)
5728 chtype separator, line;
5730 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5731 static struct rev_filler fillers[] = {
5737 chtype symbol = get_rev_graph_symbol(graph);
5738 struct rev_filler *filler;
5741 if (opt_line_graphics)
5742 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5744 filler = &fillers[DEFAULT];
5746 for (i = 0; i < graph->pos; i++) {
5747 append_to_rev_graph(graph, filler->line);
5748 if (graph_parent_is_merge(graph->prev) &&
5749 graph->prev->pos == i)
5750 filler = &fillers[RSHARP];
5752 append_to_rev_graph(graph, filler->separator);
5755 /* Place the symbol for this revision. */
5756 append_to_rev_graph(graph, symbol);
5758 if (graph->prev->size > graph->size)
5759 filler = &fillers[RDIAG];
5761 filler = &fillers[DEFAULT];
5765 for (; i < graph->size; i++) {
5766 append_to_rev_graph(graph, filler->separator);
5767 append_to_rev_graph(graph, filler->line);
5768 if (graph_parent_is_merge(graph->prev) &&
5769 i < graph->prev->pos + graph->parents->size)
5770 filler = &fillers[RSHARP];
5771 if (graph->prev->size > graph->size)
5772 filler = &fillers[LDIAG];
5775 if (graph->prev->size > graph->size) {
5776 append_to_rev_graph(graph, filler->separator);
5777 if (filler->line != ' ')
5778 append_to_rev_graph(graph, filler->line);
5782 /* Prepare the next rev graph */
5784 prepare_rev_graph(struct rev_graph *graph)
5788 /* First, traverse all lines of revisions up to the active one. */
5789 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5790 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5793 push_rev_graph(graph->next, graph->rev[graph->pos]);
5796 /* Interleave the new revision parent(s). */
5797 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5798 push_rev_graph(graph->next, graph->parents->rev[i]);
5800 /* Lastly, put any remaining revisions. */
5801 for (i = graph->pos + 1; i < graph->size; i++)
5802 push_rev_graph(graph->next, graph->rev[i]);
5806 update_rev_graph(struct view *view, struct rev_graph *graph)
5808 /* If this is the finalizing update ... */
5810 prepare_rev_graph(graph);
5812 /* Graph visualization needs a one rev look-ahead,
5813 * so the first update doesn't visualize anything. */
5814 if (!graph->prev->commit)
5817 if (view->lines > 2)
5818 view->line[view->lines - 3].dirty = 1;
5819 if (view->lines > 1)
5820 view->line[view->lines - 2].dirty = 1;
5821 draw_rev_graph(graph->prev);
5822 done_rev_graph(graph->prev->prev);
5830 static const char *main_argv[SIZEOF_ARG] = {
5831 "git", "log", "--no-color", "--pretty=raw", "--parents",
5832 "--topo-order", "%(head)", NULL
5836 main_draw(struct view *view, struct line *line, unsigned int lineno)
5838 struct commit *commit = line->data;
5840 if (!*commit->author)
5843 if (opt_date && draw_date(view, &commit->time))
5846 if (opt_author && draw_author(view, commit->author))
5849 if (opt_rev_graph && commit->graph_size &&
5850 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5853 if (opt_show_refs && commit->refs) {
5857 enum line_type type;
5859 if (commit->refs[i]->head)
5860 type = LINE_MAIN_HEAD;
5861 else if (commit->refs[i]->ltag)
5862 type = LINE_MAIN_LOCAL_TAG;
5863 else if (commit->refs[i]->tag)
5864 type = LINE_MAIN_TAG;
5865 else if (commit->refs[i]->tracked)
5866 type = LINE_MAIN_TRACKED;
5867 else if (commit->refs[i]->remote)
5868 type = LINE_MAIN_REMOTE;
5870 type = LINE_MAIN_REF;
5872 if (draw_text(view, type, "[", TRUE) ||
5873 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5874 draw_text(view, type, "]", TRUE))
5877 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5879 } while (commit->refs[i++]->next);
5882 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5886 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5888 main_read(struct view *view, char *line)
5890 static struct rev_graph *graph = graph_stacks;
5891 enum line_type type;
5892 struct commit *commit;
5897 if (!view->lines && !view->parent)
5898 die("No revisions match the given arguments.");
5899 if (view->lines > 0) {
5900 commit = view->line[view->lines - 1].data;
5901 view->line[view->lines - 1].dirty = 1;
5902 if (!*commit->author) {
5905 graph->commit = NULL;
5908 update_rev_graph(view, graph);
5910 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5911 clear_rev_graph(&graph_stacks[i]);
5915 type = get_line_type(line);
5916 if (type == LINE_COMMIT) {
5917 commit = calloc(1, sizeof(struct commit));
5921 line += STRING_SIZE("commit ");
5923 graph->boundary = 1;
5927 string_copy_rev(commit->id, line);
5928 commit->refs = get_refs(commit->id);
5929 graph->commit = commit;
5930 add_line_data(view, commit, LINE_MAIN_COMMIT);
5932 while ((line = strchr(line, ' '))) {
5934 push_rev_graph(graph->parents, line);
5935 commit->has_parents = TRUE;
5942 commit = view->line[view->lines - 1].data;
5946 if (commit->has_parents)
5948 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5952 parse_author_line(line + STRING_SIZE("author "),
5953 commit->author, sizeof(commit->author),
5955 update_rev_graph(view, graph);
5956 graph = graph->next;
5960 /* Fill in the commit title if it has not already been set. */
5961 if (commit->title[0])
5964 /* Require titles to start with a non-space character at the
5965 * offset used by git log. */
5966 if (strncmp(line, " ", 4))
5969 /* Well, if the title starts with a whitespace character,
5970 * try to be forgiving. Otherwise we end up with no title. */
5971 while (isspace(*line))
5975 /* FIXME: More graceful handling of titles; append "..." to
5976 * shortened titles, etc. */
5978 string_expand(commit->title, sizeof(commit->title), line, 1);
5979 view->line[view->lines - 1].dirty = 1;
5986 main_request(struct view *view, enum request request, struct line *line)
5988 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5992 open_view(view, REQ_VIEW_DIFF, flags);
5996 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
6006 grep_refs(struct ref **refs, regex_t *regex)
6014 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
6016 } while (refs[i++]->next);
6022 main_grep(struct view *view, struct line *line)
6024 struct commit *commit = line->data;
6025 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
6026 char buf[DATE_COLS + 1];
6029 for (state = S_TITLE; state < S_END; state++) {
6033 case S_TITLE: text = commit->title; break;
6037 text = commit->author;
6042 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
6049 if (grep_refs(commit->refs, view->regex) == TRUE)
6056 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
6064 main_select(struct view *view, struct line *line)
6066 struct commit *commit = line->data;
6068 string_copy_rev(view->ref, commit->id);
6069 string_copy_rev(ref_commit, view->ref);
6072 static struct view_ops main_ops = {
6085 * Unicode / UTF-8 handling
6087 * NOTE: Much of the following code for dealing with Unicode is derived from
6088 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
6089 * src/intl/charset.c from the UTF-8 branch commit elinks-0.11.0-g31f2c28.
6093 unicode_width(unsigned long c)
6096 (c <= 0x115f /* Hangul Jamo */
6099 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
6101 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
6102 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
6103 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
6104 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
6105 || (c >= 0xffe0 && c <= 0xffe6)
6106 || (c >= 0x20000 && c <= 0x2fffd)
6107 || (c >= 0x30000 && c <= 0x3fffd)))
6111 return opt_tab_size;
6116 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
6117 * Illegal bytes are set one. */
6118 static const unsigned char utf8_bytes[256] = {
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 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,
6125 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,
6126 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,
6129 /* Decode UTF-8 multi-byte representation into a Unicode character. */
6130 static inline unsigned long
6131 utf8_to_unicode(const char *string, size_t length)
6133 unsigned long unicode;
6137 unicode = string[0];
6140 unicode = (string[0] & 0x1f) << 6;
6141 unicode += (string[1] & 0x3f);
6144 unicode = (string[0] & 0x0f) << 12;
6145 unicode += ((string[1] & 0x3f) << 6);
6146 unicode += (string[2] & 0x3f);
6149 unicode = (string[0] & 0x0f) << 18;
6150 unicode += ((string[1] & 0x3f) << 12);
6151 unicode += ((string[2] & 0x3f) << 6);
6152 unicode += (string[3] & 0x3f);
6155 unicode = (string[0] & 0x0f) << 24;
6156 unicode += ((string[1] & 0x3f) << 18);
6157 unicode += ((string[2] & 0x3f) << 12);
6158 unicode += ((string[3] & 0x3f) << 6);
6159 unicode += (string[4] & 0x3f);
6162 unicode = (string[0] & 0x01) << 30;
6163 unicode += ((string[1] & 0x3f) << 24);
6164 unicode += ((string[2] & 0x3f) << 18);
6165 unicode += ((string[3] & 0x3f) << 12);
6166 unicode += ((string[4] & 0x3f) << 6);
6167 unicode += (string[5] & 0x3f);
6170 die("Invalid Unicode length");
6173 /* Invalid characters could return the special 0xfffd value but NUL
6174 * should be just as good. */
6175 return unicode > 0xffff ? 0 : unicode;
6178 /* Calculates how much of string can be shown within the given maximum width
6179 * and sets trimmed parameter to non-zero value if all of string could not be
6180 * shown. If the reserve flag is TRUE, it will reserve at least one
6181 * trailing character, which can be useful when drawing a delimiter.
6183 * Returns the number of bytes to output from string to satisfy max_width. */
6185 utf8_length(const char **start, size_t skip, int *width, size_t max_width, int *trimmed, bool reserve)
6187 const char *string = *start;
6188 const char *end = strchr(string, '\0');
6189 unsigned char last_bytes = 0;
6190 size_t last_ucwidth = 0;
6195 while (string < end) {
6196 int c = *(unsigned char *) string;
6197 unsigned char bytes = utf8_bytes[c];
6199 unsigned long unicode;
6201 if (string + bytes > end)
6204 /* Change representation to figure out whether
6205 * it is a single- or double-width character. */
6207 unicode = utf8_to_unicode(string, bytes);
6208 /* FIXME: Graceful handling of invalid Unicode character. */
6212 ucwidth = unicode_width(unicode);
6214 skip -= ucwidth <= skip ? ucwidth : skip;
6218 if (*width > max_width) {
6221 if (reserve && *width == max_width) {
6222 string -= last_bytes;
6223 *width -= last_ucwidth;
6229 last_bytes = ucwidth ? bytes : 0;
6230 last_ucwidth = ucwidth;
6233 return string - *start;
6241 /* Whether or not the curses interface has been initialized. */
6242 static bool cursed = FALSE;
6244 /* Terminal hacks and workarounds. */
6245 static bool use_scroll_redrawwin;
6246 static bool use_scroll_status_wclear;
6248 /* The status window is used for polling keystrokes. */
6249 static WINDOW *status_win;
6251 /* Reading from the prompt? */
6252 static bool input_mode = FALSE;
6254 static bool status_empty = FALSE;
6256 /* Update status and title window. */
6258 report(const char *msg, ...)
6260 struct view *view = display[current_view];
6266 char buf[SIZEOF_STR];
6269 va_start(args, msg);
6270 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6271 buf[sizeof(buf) - 1] = 0;
6272 buf[sizeof(buf) - 2] = '.';
6273 buf[sizeof(buf) - 3] = '.';
6274 buf[sizeof(buf) - 4] = '.';
6280 if (!status_empty || *msg) {
6283 va_start(args, msg);
6285 wmove(status_win, 0, 0);
6286 if (view->has_scrolled && use_scroll_status_wclear)
6289 vwprintw(status_win, msg, args);
6290 status_empty = FALSE;
6292 status_empty = TRUE;
6294 wclrtoeol(status_win);
6295 wnoutrefresh(status_win);
6300 update_view_title(view);
6303 /* Controls when nodelay should be in effect when polling user input. */
6305 set_nonblocking_input(bool loading)
6307 static unsigned int loading_views;
6309 if ((loading == FALSE && loading_views-- == 1) ||
6310 (loading == TRUE && loading_views++ == 0))
6311 nodelay(status_win, loading);
6320 /* Initialize the curses library */
6321 if (isatty(STDIN_FILENO)) {
6322 cursed = !!initscr();
6325 /* Leave stdin and stdout alone when acting as a pager. */
6326 opt_tty = fopen("/dev/tty", "r+");
6328 die("Failed to open /dev/tty");
6329 cursed = !!newterm(NULL, opt_tty, opt_tty);
6333 die("Failed to initialize curses");
6335 nonl(); /* Disable conversion and detect newlines from input. */
6336 cbreak(); /* Take input chars one at a time, no wait for \n */
6337 noecho(); /* Don't echo input */
6338 leaveok(stdscr, FALSE);
6343 getmaxyx(stdscr, y, x);
6344 status_win = newwin(1, 0, y - 1, 0);
6346 die("Failed to create status window");
6348 /* Enable keyboard mapping */
6349 keypad(status_win, TRUE);
6350 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6352 TABSIZE = opt_tab_size;
6353 if (opt_line_graphics) {
6354 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6357 term = getenv("XTERM_VERSION") ? NULL : getenv("COLORTERM");
6358 if (term && !strcmp(term, "gnome-terminal")) {
6359 /* In the gnome-terminal-emulator, the message from
6360 * scrolling up one line when impossible followed by
6361 * scrolling down one line causes corruption of the
6362 * status line. This is fixed by calling wclear. */
6363 use_scroll_status_wclear = TRUE;
6364 use_scroll_redrawwin = FALSE;
6366 } else if (term && !strcmp(term, "xrvt-xpm")) {
6367 /* No problems with full optimizations in xrvt-(unicode)
6369 use_scroll_status_wclear = use_scroll_redrawwin = FALSE;
6372 /* When scrolling in (u)xterm the last line in the
6373 * scrolling direction will update slowly. */
6374 use_scroll_redrawwin = TRUE;
6375 use_scroll_status_wclear = FALSE;
6380 get_input(int prompt_position)
6383 int i, key, cursor_y, cursor_x;
6385 if (prompt_position)
6389 foreach_view (view, i) {
6391 if (view_is_displayed(view) && view->has_scrolled &&
6392 use_scroll_redrawwin)
6393 redrawwin(view->win);
6394 view->has_scrolled = FALSE;
6397 /* Update the cursor position. */
6398 if (prompt_position) {
6399 getbegyx(status_win, cursor_y, cursor_x);
6400 cursor_x = prompt_position;
6402 view = display[current_view];
6403 getbegyx(view->win, cursor_y, cursor_x);
6404 cursor_x = view->width - 1;
6405 cursor_y += view->lineno - view->offset;
6407 setsyx(cursor_y, cursor_x);
6409 /* Refresh, accept single keystroke of input */
6411 key = wgetch(status_win);
6413 /* wgetch() with nodelay() enabled returns ERR when
6414 * there's no input. */
6417 } else if (key == KEY_RESIZE) {
6420 getmaxyx(stdscr, height, width);
6422 wresize(status_win, 1, width);
6423 mvwin(status_win, height - 1, 0);
6424 wnoutrefresh(status_win);
6426 redraw_display(TRUE);
6436 prompt_input(const char *prompt, input_handler handler, void *data)
6438 enum input_status status = INPUT_OK;
6439 static char buf[SIZEOF_STR];
6444 while (status == INPUT_OK || status == INPUT_SKIP) {
6447 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6448 wclrtoeol(status_win);
6450 key = get_input(pos + 1);
6455 status = pos ? INPUT_STOP : INPUT_CANCEL;
6462 status = INPUT_CANCEL;
6466 status = INPUT_CANCEL;
6470 if (pos >= sizeof(buf)) {
6471 report("Input string too long");
6475 status = handler(data, buf, key);
6476 if (status == INPUT_OK)
6477 buf[pos++] = (char) key;
6481 /* Clear the status window */
6482 status_empty = FALSE;
6485 if (status == INPUT_CANCEL)
6493 static enum input_status
6494 prompt_yesno_handler(void *data, char *buf, int c)
6496 if (c == 'y' || c == 'Y')
6498 if (c == 'n' || c == 'N')
6499 return INPUT_CANCEL;
6504 prompt_yesno(const char *prompt)
6506 char prompt2[SIZEOF_STR];
6508 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6511 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6514 static enum input_status
6515 read_prompt_handler(void *data, char *buf, int c)
6517 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6521 read_prompt(const char *prompt)
6523 return prompt_input(prompt, read_prompt_handler, NULL);
6527 * Repository properties
6530 static struct ref *refs = NULL;
6531 static size_t refs_alloc = 0;
6532 static size_t refs_size = 0;
6534 /* Id <-> ref store */
6535 static struct ref ***id_refs = NULL;
6536 static size_t id_refs_alloc = 0;
6537 static size_t id_refs_size = 0;
6540 compare_refs(const void *ref1_, const void *ref2_)
6542 const struct ref *ref1 = *(const struct ref **)ref1_;
6543 const struct ref *ref2 = *(const struct ref **)ref2_;
6545 if (ref1->tag != ref2->tag)
6546 return ref2->tag - ref1->tag;
6547 if (ref1->ltag != ref2->ltag)
6548 return ref2->ltag - ref2->ltag;
6549 if (ref1->head != ref2->head)
6550 return ref2->head - ref1->head;
6551 if (ref1->tracked != ref2->tracked)
6552 return ref2->tracked - ref1->tracked;
6553 if (ref1->remote != ref2->remote)
6554 return ref2->remote - ref1->remote;
6555 return strcmp(ref1->name, ref2->name);
6558 static struct ref **
6559 get_refs(const char *id)
6561 struct ref ***tmp_id_refs;
6562 struct ref **ref_list = NULL;
6563 size_t ref_list_alloc = 0;
6564 size_t ref_list_size = 0;
6567 for (i = 0; i < id_refs_size; i++)
6568 if (!strcmp(id, id_refs[i][0]->id))
6571 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6576 id_refs = tmp_id_refs;
6578 for (i = 0; i < refs_size; i++) {
6581 if (strcmp(id, refs[i].id))
6584 tmp = realloc_items(ref_list, &ref_list_alloc,
6585 ref_list_size + 1, sizeof(*ref_list));
6593 ref_list[ref_list_size] = &refs[i];
6594 /* XXX: The properties of the commit chains ensures that we can
6595 * safely modify the shared ref. The repo references will
6596 * always be similar for the same id. */
6597 ref_list[ref_list_size]->next = 1;
6603 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6604 ref_list[ref_list_size - 1]->next = 0;
6605 id_refs[id_refs_size++] = ref_list;
6612 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6617 bool remote = FALSE;
6618 bool tracked = FALSE;
6619 bool check_replace = FALSE;
6622 if (!prefixcmp(name, "refs/tags/")) {
6623 if (!suffixcmp(name, namelen, "^{}")) {
6626 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6627 check_replace = TRUE;
6633 namelen -= STRING_SIZE("refs/tags/");
6634 name += STRING_SIZE("refs/tags/");
6636 } else if (!prefixcmp(name, "refs/remotes/")) {
6638 namelen -= STRING_SIZE("refs/remotes/");
6639 name += STRING_SIZE("refs/remotes/");
6640 tracked = !strcmp(opt_remote, name);
6642 } else if (!prefixcmp(name, "refs/heads/")) {
6643 namelen -= STRING_SIZE("refs/heads/");
6644 name += STRING_SIZE("refs/heads/");
6645 head = !strncmp(opt_head, name, namelen);
6647 } else if (!strcmp(name, "HEAD")) {
6648 string_ncopy(opt_head_rev, id, idlen);
6652 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6653 /* it's an annotated tag, replace the previous SHA1 with the
6654 * resolved commit id; relies on the fact git-ls-remote lists
6655 * the commit id of an annotated tag right before the commit id
6657 refs[refs_size - 1].ltag = ltag;
6658 string_copy_rev(refs[refs_size - 1].id, id);
6662 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6666 ref = &refs[refs_size++];
6667 ref->name = malloc(namelen + 1);
6671 strncpy(ref->name, name, namelen);
6672 ref->name[namelen] = 0;
6676 ref->remote = remote;
6677 ref->tracked = tracked;
6678 string_copy_rev(ref->id, id);
6686 static const char *ls_remote_argv[SIZEOF_ARG] = {
6687 "git", "ls-remote", opt_git_dir, NULL
6689 static bool init = FALSE;
6692 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6699 while (refs_size > 0)
6700 free(refs[--refs_size].name);
6701 while (id_refs_size > 0)
6702 free(id_refs[--id_refs_size]);
6704 return run_io_load(ls_remote_argv, "\t", read_ref);
6708 set_remote_branch(const char *name, const char *value, size_t valuelen)
6710 if (!strcmp(name, ".remote")) {
6711 string_ncopy(opt_remote, value, valuelen);
6713 } else if (*opt_remote && !strcmp(name, ".merge")) {
6714 size_t from = strlen(opt_remote);
6716 if (!prefixcmp(value, "refs/heads/"))
6717 value += STRING_SIZE("refs/heads/");
6719 if (!string_format_from(opt_remote, &from, "/%s", value))
6725 set_repo_config_option(char *name, char *value, int (*cmd)(int, const char **))
6727 const char *argv[SIZEOF_ARG] = { name, "=" };
6728 int argc = 1 + (cmd == option_set_command);
6731 if (!argv_from_string(argv, &argc, value))
6732 config_msg = "Too many option arguments";
6734 error = cmd(argc, argv);
6737 warn("Option 'tig.%s': %s", name, config_msg);
6741 set_environment_variable(const char *name, const char *value)
6743 size_t len = strlen(name) + 1 + strlen(value) + 1;
6744 char *env = malloc(len);
6747 string_nformat(env, len, NULL, "%s=%s", name, value) &&
6755 set_work_tree(const char *value)
6757 char cwd[SIZEOF_STR];
6759 if (!getcwd(cwd, sizeof(cwd)))
6760 die("Failed to get cwd path: %s", strerror(errno));
6761 if (chdir(opt_git_dir) < 0)
6762 die("Failed to chdir(%s): %s", strerror(errno));
6763 if (!getcwd(opt_git_dir, sizeof(opt_git_dir)))
6764 die("Failed to get git path: %s", strerror(errno));
6766 die("Failed to chdir(%s): %s", cwd, strerror(errno));
6767 if (chdir(value) < 0)
6768 die("Failed to chdir(%s): %s", value, strerror(errno));
6769 if (!getcwd(cwd, sizeof(cwd)))
6770 die("Failed to get cwd path: %s", strerror(errno));
6771 if (!set_environment_variable("GIT_WORK_TREE", cwd))
6772 die("Failed to set GIT_WORK_TREE to '%s'", cwd);
6773 if (!set_environment_variable("GIT_DIR", opt_git_dir))
6774 die("Failed to set GIT_DIR to '%s'", opt_git_dir);
6775 opt_is_inside_work_tree = TRUE;
6779 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6781 if (!strcmp(name, "i18n.commitencoding"))
6782 string_ncopy(opt_encoding, value, valuelen);
6784 else if (!strcmp(name, "core.editor"))
6785 string_ncopy(opt_editor, value, valuelen);
6787 else if (!strcmp(name, "core.worktree"))
6788 set_work_tree(value);
6790 else if (!prefixcmp(name, "tig.color."))
6791 set_repo_config_option(name + 10, value, option_color_command);
6793 else if (!prefixcmp(name, "tig.bind."))
6794 set_repo_config_option(name + 9, value, option_bind_command);
6796 else if (!prefixcmp(name, "tig."))
6797 set_repo_config_option(name + 4, value, option_set_command);
6799 else if (*opt_head && !prefixcmp(name, "branch.") &&
6800 !strncmp(name + 7, opt_head, strlen(opt_head)))
6801 set_remote_branch(name + 7 + strlen(opt_head), value, valuelen);
6807 load_git_config(void)
6809 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6811 return run_io_load(config_list_argv, "=", read_repo_config_option);
6815 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6817 if (!opt_git_dir[0]) {
6818 string_ncopy(opt_git_dir, name, namelen);
6820 } else if (opt_is_inside_work_tree == -1) {
6821 /* This can be 3 different values depending on the
6822 * version of git being used. If git-rev-parse does not
6823 * understand --is-inside-work-tree it will simply echo
6824 * the option else either "true" or "false" is printed.
6825 * Default to true for the unknown case. */
6826 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6828 } else if (*name == '.') {
6829 string_ncopy(opt_cdup, name, namelen);
6832 string_ncopy(opt_prefix, name, namelen);
6839 load_repo_info(void)
6841 const char *head_argv[] = {
6842 "git", "symbolic-ref", "HEAD", NULL
6844 const char *rev_parse_argv[] = {
6845 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6846 "--show-cdup", "--show-prefix", NULL
6849 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6850 chomp_string(opt_head);
6851 if (!prefixcmp(opt_head, "refs/heads/")) {
6852 char *offset = opt_head + STRING_SIZE("refs/heads/");
6854 memmove(opt_head, offset, strlen(offset) + 1);
6858 return run_io_load(rev_parse_argv, "=", read_repo_info);
6866 static const char usage[] =
6867 "tig " TIG_VERSION " (" __DATE__ ")\n"
6869 "Usage: tig [options] [revs] [--] [paths]\n"
6870 " or: tig show [options] [revs] [--] [paths]\n"
6871 " or: tig blame [rev] path\n"
6873 " or: tig < [git command output]\n"
6876 " -v, --version Show version and exit\n"
6877 " -h, --help Show help message and exit";
6879 static void __NORETURN
6882 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6888 static void __NORETURN
6889 die(const char *err, ...)
6895 va_start(args, err);
6896 fputs("tig: ", stderr);
6897 vfprintf(stderr, err, args);
6898 fputs("\n", stderr);
6905 warn(const char *msg, ...)
6909 va_start(args, msg);
6910 fputs("tig warning: ", stderr);
6911 vfprintf(stderr, msg, args);
6912 fputs("\n", stderr);
6917 parse_options(int argc, const char *argv[])
6919 enum request request = REQ_VIEW_MAIN;
6920 const char *subcommand;
6921 bool seen_dashdash = FALSE;
6922 /* XXX: This is vulnerable to the user overriding options
6923 * required for the main view parser. */
6924 const char *custom_argv[SIZEOF_ARG] = {
6925 "git", "log", "--no-color", "--pretty=raw", "--parents",
6926 "--topo-order", NULL
6930 if (!isatty(STDIN_FILENO)) {
6931 io_open(&VIEW(REQ_VIEW_PAGER)->io, "");
6932 return REQ_VIEW_PAGER;
6938 subcommand = argv[1];
6939 if (!strcmp(subcommand, "status")) {
6941 warn("ignoring arguments after `%s'", subcommand);
6942 return REQ_VIEW_STATUS;
6944 } else if (!strcmp(subcommand, "blame")) {
6945 if (argc <= 2 || argc > 4)
6946 die("invalid number of options to blame\n\n%s", usage);
6950 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
6954 string_ncopy(opt_file, argv[i], strlen(argv[i]));
6955 return REQ_VIEW_BLAME;
6957 } else if (!strcmp(subcommand, "show")) {
6958 request = REQ_VIEW_DIFF;
6965 custom_argv[1] = subcommand;
6969 for (i = 1 + !!subcommand; i < argc; i++) {
6970 const char *opt = argv[i];
6972 if (seen_dashdash || !strcmp(opt, "--")) {
6973 seen_dashdash = TRUE;
6975 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
6976 printf("tig version %s\n", TIG_VERSION);
6979 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
6980 printf("%s\n", usage);
6984 custom_argv[j++] = opt;
6985 if (j >= ARRAY_SIZE(custom_argv))
6986 die("command too long");
6989 if (!prepare_update(VIEW(request), custom_argv, NULL, FORMAT_NONE))
6990 die("Failed to format arguments");
6996 main(int argc, const char *argv[])
6998 enum request request = parse_options(argc, argv);
7002 signal(SIGINT, quit);
7003 signal(SIGPIPE, SIG_IGN);
7005 if (setlocale(LC_ALL, "")) {
7006 char *codeset = nl_langinfo(CODESET);
7008 string_ncopy(opt_codeset, codeset, strlen(codeset));
7011 if (load_repo_info() == ERR)
7012 die("Failed to load repo info.");
7014 if (load_options() == ERR)
7015 die("Failed to load user config.");
7017 if (load_git_config() == ERR)
7018 die("Failed to load repo config.");
7020 /* Require a git repository unless when running in pager mode. */
7021 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
7022 die("Not a git repository");
7024 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
7027 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
7028 opt_iconv = iconv_open(opt_codeset, opt_encoding);
7029 if (opt_iconv == ICONV_NONE)
7030 die("Failed to initialize character set conversion");
7033 if (load_refs() == ERR)
7034 die("Failed to load refs.");
7036 foreach_view (view, i)
7037 argv_from_env(view->ops->argv, view->cmd_env);
7041 if (request != REQ_NONE)
7042 open_view(NULL, request, OPEN_PREPARED);
7043 request = request == REQ_NONE ? REQ_VIEW_MAIN : REQ_NONE;
7045 while (view_driver(display[current_view], request)) {
7046 int key = get_input(0);
7048 view = display[current_view];
7049 request = get_keybinding(view->keymap, key);
7051 /* Some low-level request handling. This keeps access to
7052 * status_win restricted. */
7056 char *cmd = read_prompt(":");
7058 if (cmd && isdigit(*cmd)) {
7059 int lineno = view->lineno + 1;
7061 if (parse_int(&lineno, cmd, 1, view->lines + 1) == OK) {
7062 select_view_line(view, lineno - 1);
7065 report("Unable to parse '%s' as a line number", cmd);
7069 struct view *next = VIEW(REQ_VIEW_PAGER);
7070 const char *argv[SIZEOF_ARG] = { "git" };
7073 /* When running random commands, initially show the
7074 * command in the title. However, it maybe later be
7075 * overwritten if a commit line is selected. */
7076 string_ncopy(next->ref, cmd, strlen(cmd));
7078 if (!argv_from_string(argv, &argc, cmd)) {
7079 report("Too many arguments");
7080 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
7081 report("Failed to format command");
7083 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
7091 case REQ_SEARCH_BACK:
7093 const char *prompt = request == REQ_SEARCH ? "/" : "?";
7094 char *search = read_prompt(prompt);
7097 string_ncopy(opt_search, search, strlen(search));
7098 else if (*opt_search)
7099 request = request == REQ_SEARCH ?