1 /* Copyright (c) 2006-2009 Jonas Fonseca <fonseca@diku.dk>
3 * This program is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU General Public License as
5 * published by the Free Software Foundation; either version 2 of
6 * the License, or (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
19 #define TIG_VERSION "unknown-version"
34 #include <sys/types.h>
37 #include <sys/select.h>
48 /* ncurses(3): Must be defined to have extended wide-character functions. */
49 #define _XOPEN_SOURCE_EXTENDED
51 #ifdef HAVE_NCURSESW_NCURSES_H
52 #include <ncursesw/ncurses.h>
54 #ifdef HAVE_NCURSES_NCURSES_H
55 #include <ncurses/ncurses.h>
62 #define __NORETURN __attribute__((__noreturn__))
67 static void __NORETURN die(const char *err, ...);
68 static void warn(const char *msg, ...);
69 static void report(const char *msg, ...);
70 static void set_nonblocking_input(bool loading);
71 static int load_refs(void);
72 static size_t utf8_length(const char **string, size_t col, int *width, size_t max_width, int *trimmed, bool reserve);
74 #define ABS(x) ((x) >= 0 ? (x) : -(x))
75 #define MIN(x, y) ((x) < (y) ? (x) : (y))
77 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
78 #define STRING_SIZE(x) (sizeof(x) - 1)
80 #define SIZEOF_STR 1024 /* Default string size. */
81 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
82 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL. */
83 #define SIZEOF_ARG 32 /* Default argument array size. */
87 #define REVGRAPH_INIT 'I'
88 #define REVGRAPH_MERGE 'M'
89 #define REVGRAPH_BRANCH '+'
90 #define REVGRAPH_COMMIT '*'
91 #define REVGRAPH_BOUND '^'
93 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
95 /* This color name can be used to refer to the default term colors. */
96 #define COLOR_DEFAULT (-1)
98 #define ICONV_NONE ((iconv_t) -1)
100 #define ICONV_CONST /* nothing */
103 /* The format and size of the date column in the main view. */
104 #define DATE_FORMAT "%Y-%m-%d %H:%M"
105 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
107 #define AUTHOR_COLS 20
110 /* The default interval between line numbers. */
111 #define NUMBER_INTERVAL 5
115 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
117 #define NULL_ID "0000000000000000000000000000000000000000"
119 #define S_ISGITLINK(mode) (((mode) & S_IFMT) == 0160000)
122 #define GIT_CONFIG "config"
125 /* Some ASCII-shorthands fitted into the ncurses namespace. */
127 #define KEY_RETURN '\r'
132 char *name; /* Ref name; tag or head names are shortened. */
133 char id[SIZEOF_REV]; /* Commit SHA1 ID */
134 unsigned int head:1; /* Is it the current HEAD? */
135 unsigned int tag:1; /* Is it a tag? */
136 unsigned int ltag:1; /* If so, is the tag local? */
137 unsigned int remote:1; /* Is it a remote ref? */
138 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
139 unsigned int next:1; /* For ref lists: are there more refs? */
142 static struct ref **get_refs(const char *id);
145 FORMAT_ALL, /* Perform replacement in all arguments. */
146 FORMAT_DASH, /* Perform replacement up until "--". */
147 FORMAT_NONE /* No replacement should be performed. */
150 static bool format_argv(const char *dst[], const char *src[], enum format_flags flags);
159 typedef enum input_status (*input_handler)(void *data, char *buf, int c);
161 static char *prompt_input(const char *prompt, input_handler handler, void *data);
162 static bool prompt_yesno(const char *prompt);
169 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
171 if (srclen > dstlen - 1)
174 strncpy(dst, src, srclen);
178 /* Shorthands for safely copying into a fixed buffer. */
180 #define string_copy(dst, src) \
181 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
183 #define string_ncopy(dst, src, srclen) \
184 string_ncopy_do(dst, sizeof(dst), src, srclen)
186 #define string_copy_rev(dst, src) \
187 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
189 #define string_add(dst, from, src) \
190 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
193 string_expand(char *dst, size_t dstlen, const char *src, int tabsize)
197 for (size = pos = 0; size < dstlen - 1 && src[pos]; pos++) {
198 if (src[pos] == '\t') {
199 size_t expanded = tabsize - (size % tabsize);
201 if (expanded + size >= dstlen - 1)
202 expanded = dstlen - size - 1;
203 memcpy(dst + size, " ", expanded);
206 dst[size++] = src[pos];
214 chomp_string(char *name)
218 while (isspace(*name))
221 namelen = strlen(name) - 1;
222 while (namelen > 0 && isspace(name[namelen]))
229 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
232 size_t pos = bufpos ? *bufpos : 0;
235 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
241 return pos >= bufsize ? FALSE : TRUE;
244 #define string_format(buf, fmt, args...) \
245 string_nformat(buf, sizeof(buf), NULL, fmt, args)
247 #define string_format_from(buf, from, fmt, args...) \
248 string_nformat(buf, sizeof(buf), from, fmt, args)
251 string_enum_compare(const char *str1, const char *str2, int len)
255 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
257 /* Diff-Header == DIFF_HEADER */
258 for (i = 0; i < len; i++) {
259 if (toupper(str1[i]) == toupper(str2[i]))
262 if (string_enum_sep(str1[i]) &&
263 string_enum_sep(str2[i]))
266 return str1[i] - str2[i];
278 #define ENUM_MAP(name, value) { name, STRING_SIZE(name), value }
281 map_enum_do(const struct enum_map *map, size_t map_size, int *value, const char *name)
283 size_t namelen = strlen(name);
286 for (i = 0; i < map_size; i++)
287 if (namelen == map[i].namelen &&
288 !string_enum_compare(name, map[i].name, namelen)) {
289 *value = map[i].value;
296 #define map_enum(attr, map, name) \
297 map_enum_do(map, ARRAY_SIZE(map), attr, name)
299 #define prefixcmp(str1, str2) \
300 strncmp(str1, str2, STRING_SIZE(str2))
303 suffixcmp(const char *str, int slen, const char *suffix)
305 size_t len = slen >= 0 ? slen : strlen(str);
306 size_t suffixlen = strlen(suffix);
308 return suffixlen < len ? strcmp(str + len - suffixlen, suffix) : -1;
313 argv_from_string(const char *argv[SIZEOF_ARG], int *argc, char *cmd)
317 while (*cmd && *argc < SIZEOF_ARG && (valuelen = strcspn(cmd, " \t"))) {
318 bool advance = cmd[valuelen] != 0;
321 argv[(*argc)++] = chomp_string(cmd);
322 cmd = chomp_string(cmd + valuelen + advance);
325 if (*argc < SIZEOF_ARG)
327 return *argc < SIZEOF_ARG;
331 argv_from_env(const char **argv, const char *name)
333 char *env = argv ? getenv(name) : NULL;
338 if (env && !argv_from_string(argv, &argc, env))
339 die("Too many arguments in the `%s` environment variable", name);
344 * Executing external commands.
348 IO_FD, /* File descriptor based IO. */
349 IO_BG, /* Execute command in the background. */
350 IO_FG, /* Execute command with same std{in,out,err}. */
351 IO_RD, /* Read only fork+exec IO. */
352 IO_WR, /* Write only fork+exec IO. */
353 IO_AP, /* Append fork+exec output to file. */
357 enum io_type type; /* The requested type of pipe. */
358 const char *dir; /* Directory from which to execute. */
359 pid_t pid; /* Pipe for reading or writing. */
360 int pipe; /* Pipe end for reading or writing. */
361 int error; /* Error status. */
362 const char *argv[SIZEOF_ARG]; /* Shell command arguments. */
363 char *buf; /* Read buffer. */
364 size_t bufalloc; /* Allocated buffer size. */
365 size_t bufsize; /* Buffer content size. */
366 char *bufpos; /* Current buffer position. */
367 unsigned int eof:1; /* Has end of file been reached. */
371 reset_io(struct io *io)
375 io->buf = io->bufpos = NULL;
376 io->bufalloc = io->bufsize = 0;
382 init_io(struct io *io, const char *dir, enum io_type type)
390 init_io_rd(struct io *io, const char *argv[], const char *dir,
391 enum format_flags flags)
393 init_io(io, dir, IO_RD);
394 return format_argv(io->argv, argv, flags);
398 io_open(struct io *io, const char *name)
400 init_io(io, NULL, IO_FD);
401 io->pipe = *name ? open(name, O_RDONLY) : STDIN_FILENO;
404 return io->pipe != -1;
408 kill_io(struct io *io)
410 return io->pid == 0 || kill(io->pid, SIGKILL) != -1;
414 done_io(struct io *io)
425 pid_t waiting = waitpid(pid, &status, 0);
430 report("waitpid failed (%s)", strerror(errno));
434 return waiting == pid &&
435 !WIFSIGNALED(status) &&
437 !WEXITSTATUS(status);
444 start_io(struct io *io)
446 int pipefds[2] = { -1, -1 };
448 if (io->type == IO_FD)
451 if ((io->type == IO_RD || io->type == IO_WR) &&
454 else if (io->type == IO_AP)
455 pipefds[1] = io->pipe;
457 if ((io->pid = fork())) {
458 if (pipefds[!(io->type == IO_WR)] != -1)
459 close(pipefds[!(io->type == IO_WR)]);
461 io->pipe = pipefds[!!(io->type == IO_WR)];
466 if (io->type != IO_FG) {
467 int devnull = open("/dev/null", O_RDWR);
468 int readfd = io->type == IO_WR ? pipefds[0] : devnull;
469 int writefd = (io->type == IO_RD || io->type == IO_AP)
470 ? pipefds[1] : devnull;
472 dup2(readfd, STDIN_FILENO);
473 dup2(writefd, STDOUT_FILENO);
474 dup2(devnull, STDERR_FILENO);
477 if (pipefds[0] != -1)
479 if (pipefds[1] != -1)
483 if (io->dir && *io->dir && chdir(io->dir) == -1)
484 die("Failed to change directory: %s", strerror(errno));
486 execvp(io->argv[0], (char *const*) io->argv);
487 die("Failed to execute program: %s", strerror(errno));
490 if (pipefds[!!(io->type == IO_WR)] != -1)
491 close(pipefds[!!(io->type == IO_WR)]);
496 run_io(struct io *io, const char **argv, const char *dir, enum io_type type)
498 init_io(io, dir, type);
499 if (!format_argv(io->argv, argv, FORMAT_NONE))
505 run_io_do(struct io *io)
507 return start_io(io) && done_io(io);
511 run_io_bg(const char **argv)
515 init_io(&io, NULL, IO_BG);
516 if (!format_argv(io.argv, argv, FORMAT_NONE))
518 return run_io_do(&io);
522 run_io_fg(const char **argv, const char *dir)
526 init_io(&io, dir, IO_FG);
527 if (!format_argv(io.argv, argv, FORMAT_NONE))
529 return run_io_do(&io);
533 run_io_append(const char **argv, enum format_flags flags, int fd)
537 init_io(&io, NULL, IO_AP);
539 if (format_argv(io.argv, argv, flags))
540 return run_io_do(&io);
546 run_io_rd(struct io *io, const char **argv, enum format_flags flags)
548 return init_io_rd(io, argv, NULL, flags) && start_io(io);
552 io_eof(struct io *io)
558 io_error(struct io *io)
564 io_strerror(struct io *io)
566 return strerror(io->error);
570 io_can_read(struct io *io)
572 struct timeval tv = { 0, 500 };
576 FD_SET(io->pipe, &fds);
578 return select(io->pipe + 1, &fds, NULL, NULL, &tv) > 0;
582 io_read(struct io *io, void *buf, size_t bufsize)
585 ssize_t readsize = read(io->pipe, buf, bufsize);
587 if (readsize < 0 && (errno == EAGAIN || errno == EINTR))
589 else if (readsize == -1)
591 else if (readsize == 0)
598 io_get(struct io *io, int c, bool can_read)
604 io->buf = io->bufpos = malloc(BUFSIZ);
607 io->bufalloc = BUFSIZ;
612 if (io->bufsize > 0) {
613 eol = memchr(io->bufpos, c, io->bufsize);
615 char *line = io->bufpos;
618 io->bufpos = eol + 1;
619 io->bufsize -= io->bufpos - line;
626 io->bufpos[io->bufsize] = 0;
636 if (io->bufsize > 0 && io->bufpos > io->buf)
637 memmove(io->buf, io->bufpos, io->bufsize);
639 io->bufpos = io->buf;
640 readsize = io_read(io, io->buf + io->bufsize, io->bufalloc - io->bufsize);
643 io->bufsize += readsize;
648 io_write(struct io *io, const void *buf, size_t bufsize)
652 while (!io_error(io) && written < bufsize) {
655 size = write(io->pipe, buf + written, bufsize - written);
656 if (size < 0 && (errno == EAGAIN || errno == EINTR))
664 return written == bufsize;
668 io_read_buf(struct io *io, char buf[], size_t bufsize)
672 io->buf = io->bufpos = buf;
673 io->bufalloc = bufsize;
674 error = !io_get(io, '\n', TRUE) && io_error(io);
677 return done_io(io) || error;
681 run_io_buf(const char **argv, char buf[], size_t bufsize)
685 return run_io_rd(&io, argv, FORMAT_NONE) && io_read_buf(&io, buf, bufsize);
689 io_load(struct io *io, const char *separators,
690 int (*read_property)(char *, size_t, char *, size_t))
698 while (state == OK && (name = io_get(io, '\n', TRUE))) {
703 name = chomp_string(name);
704 namelen = strcspn(name, separators);
708 value = chomp_string(name + namelen + 1);
709 valuelen = strlen(value);
716 state = read_property(name, namelen, value, valuelen);
719 if (state != ERR && io_error(io))
727 run_io_load(const char **argv, const char *separators,
728 int (*read_property)(char *, size_t, char *, size_t))
732 return init_io_rd(&io, argv, NULL, FORMAT_NONE)
733 ? io_load(&io, separators, read_property) : ERR;
742 /* XXX: Keep the view request first and in sync with views[]. */ \
743 REQ_GROUP("View switching") \
744 REQ_(VIEW_MAIN, "Show main view"), \
745 REQ_(VIEW_DIFF, "Show diff view"), \
746 REQ_(VIEW_LOG, "Show log view"), \
747 REQ_(VIEW_TREE, "Show tree view"), \
748 REQ_(VIEW_BLOB, "Show blob view"), \
749 REQ_(VIEW_BLAME, "Show blame view"), \
750 REQ_(VIEW_HELP, "Show help page"), \
751 REQ_(VIEW_PAGER, "Show pager view"), \
752 REQ_(VIEW_STATUS, "Show status view"), \
753 REQ_(VIEW_STAGE, "Show stage view"), \
755 REQ_GROUP("View manipulation") \
756 REQ_(ENTER, "Enter current line and scroll"), \
757 REQ_(NEXT, "Move to next"), \
758 REQ_(PREVIOUS, "Move to previous"), \
759 REQ_(PARENT, "Move to parent"), \
760 REQ_(VIEW_NEXT, "Move focus to next view"), \
761 REQ_(REFRESH, "Reload and refresh"), \
762 REQ_(MAXIMIZE, "Maximize the current view"), \
763 REQ_(VIEW_CLOSE, "Close the current view"), \
764 REQ_(QUIT, "Close all views and quit"), \
766 REQ_GROUP("View specific requests") \
767 REQ_(STATUS_UPDATE, "Update file status"), \
768 REQ_(STATUS_REVERT, "Revert file changes"), \
769 REQ_(STATUS_MERGE, "Merge file using external tool"), \
770 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
772 REQ_GROUP("Cursor navigation") \
773 REQ_(MOVE_UP, "Move cursor one line up"), \
774 REQ_(MOVE_DOWN, "Move cursor one line down"), \
775 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
776 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
777 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
778 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
780 REQ_GROUP("Scrolling") \
781 REQ_(SCROLL_LEFT, "Scroll two columns left"), \
782 REQ_(SCROLL_RIGHT, "Scroll two columns right"), \
783 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
784 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
785 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
786 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
788 REQ_GROUP("Searching") \
789 REQ_(SEARCH, "Search the view"), \
790 REQ_(SEARCH_BACK, "Search backwards in the view"), \
791 REQ_(FIND_NEXT, "Find next search match"), \
792 REQ_(FIND_PREV, "Find previous search match"), \
794 REQ_GROUP("Option manipulation") \
795 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
796 REQ_(TOGGLE_DATE, "Toggle date display"), \
797 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
798 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
799 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
802 REQ_(PROMPT, "Bring up the prompt"), \
803 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
804 REQ_(SHOW_VERSION, "Show version information"), \
805 REQ_(STOP_LOADING, "Stop all loading views"), \
806 REQ_(EDIT, "Open in editor"), \
807 REQ_(NONE, "Do nothing")
810 /* User action requests. */
812 #define REQ_GROUP(help)
813 #define REQ_(req, help) REQ_##req
815 /* Offset all requests to avoid conflicts with ncurses getch values. */
816 REQ_OFFSET = KEY_MAX + 1,
823 struct request_info {
824 enum request request;
830 static const struct request_info req_info[] = {
831 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
832 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
839 get_request(const char *name)
841 int namelen = strlen(name);
844 for (i = 0; i < ARRAY_SIZE(req_info); i++)
845 if (req_info[i].namelen == namelen &&
846 !string_enum_compare(req_info[i].name, name, namelen))
847 return req_info[i].request;
857 /* Option and state variables. */
858 static bool opt_date = TRUE;
859 static bool opt_author = TRUE;
860 static bool opt_line_number = FALSE;
861 static bool opt_line_graphics = TRUE;
862 static bool opt_rev_graph = FALSE;
863 static bool opt_show_refs = TRUE;
864 static int opt_num_interval = NUMBER_INTERVAL;
865 static double opt_hscroll = 0.50;
866 static int opt_tab_size = TAB_SIZE;
867 static int opt_author_cols = AUTHOR_COLS-1;
868 static char opt_path[SIZEOF_STR] = "";
869 static char opt_file[SIZEOF_STR] = "";
870 static char opt_ref[SIZEOF_REF] = "";
871 static char opt_head[SIZEOF_REF] = "";
872 static char opt_head_rev[SIZEOF_REV] = "";
873 static char opt_remote[SIZEOF_REF] = "";
874 static char opt_encoding[20] = "UTF-8";
875 static bool opt_utf8 = TRUE;
876 static char opt_codeset[20] = "UTF-8";
877 static iconv_t opt_iconv = ICONV_NONE;
878 static char opt_search[SIZEOF_STR] = "";
879 static char opt_cdup[SIZEOF_STR] = "";
880 static char opt_prefix[SIZEOF_STR] = "";
881 static char opt_git_dir[SIZEOF_STR] = "";
882 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
883 static char opt_editor[SIZEOF_STR] = "";
884 static FILE *opt_tty = NULL;
886 #define is_initial_commit() (!*opt_head_rev)
887 #define is_head_commit(rev) (!strcmp((rev), "HEAD") || !strcmp(opt_head_rev, (rev)))
891 * Line-oriented content detection.
895 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
896 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
897 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
898 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
899 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
900 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
901 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
902 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
903 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
904 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
905 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
906 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
907 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
908 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
909 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
910 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
911 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
912 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
913 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
914 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
915 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
916 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
917 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
918 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
919 LINE(AUTHOR, "author ", COLOR_GREEN, COLOR_DEFAULT, 0), \
920 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
921 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
922 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
923 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
924 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
925 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
926 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
927 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
928 LINE(MODE, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
929 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
930 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
931 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
932 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
933 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
934 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
935 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
936 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
937 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
938 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
939 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
940 LINE(TREE_HEAD, "", COLOR_DEFAULT, COLOR_DEFAULT, A_BOLD), \
941 LINE(TREE_DIR, "", COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL), \
942 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
943 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
944 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
945 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
946 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
947 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
948 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
949 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
952 #define LINE(type, line, fg, bg, attr) \
960 const char *name; /* Option name. */
961 int namelen; /* Size of option name. */
962 const char *line; /* The start of line to match. */
963 int linelen; /* Size of string to match. */
964 int fg, bg, attr; /* Color and text attributes for the lines. */
967 static struct line_info line_info[] = {
968 #define LINE(type, line, fg, bg, attr) \
969 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
974 static enum line_type
975 get_line_type(const char *line)
977 int linelen = strlen(line);
980 for (type = 0; type < ARRAY_SIZE(line_info); type++)
981 /* Case insensitive search matches Signed-off-by lines better. */
982 if (linelen >= line_info[type].linelen &&
983 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
990 get_line_attr(enum line_type type)
992 assert(type < ARRAY_SIZE(line_info));
993 return COLOR_PAIR(type) | line_info[type].attr;
996 static struct line_info *
997 get_line_info(const char *name)
999 size_t namelen = strlen(name);
1000 enum line_type type;
1002 for (type = 0; type < ARRAY_SIZE(line_info); type++)
1003 if (namelen == line_info[type].namelen &&
1004 !string_enum_compare(line_info[type].name, name, namelen))
1005 return &line_info[type];
1013 int default_bg = line_info[LINE_DEFAULT].bg;
1014 int default_fg = line_info[LINE_DEFAULT].fg;
1015 enum line_type type;
1019 if (assume_default_colors(default_fg, default_bg) == ERR) {
1020 default_bg = COLOR_BLACK;
1021 default_fg = COLOR_WHITE;
1024 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
1025 struct line_info *info = &line_info[type];
1026 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
1027 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
1029 init_pair(type, fg, bg);
1034 enum line_type type;
1037 unsigned int selected:1;
1038 unsigned int dirty:1;
1039 unsigned int cleareol:1;
1041 void *data; /* User data */
1051 enum request request;
1054 static const struct keybinding default_keybindings[] = {
1055 /* View switching */
1056 { 'm', REQ_VIEW_MAIN },
1057 { 'd', REQ_VIEW_DIFF },
1058 { 'l', REQ_VIEW_LOG },
1059 { 't', REQ_VIEW_TREE },
1060 { 'f', REQ_VIEW_BLOB },
1061 { 'B', REQ_VIEW_BLAME },
1062 { 'p', REQ_VIEW_PAGER },
1063 { 'h', REQ_VIEW_HELP },
1064 { 'S', REQ_VIEW_STATUS },
1065 { 'c', REQ_VIEW_STAGE },
1067 /* View manipulation */
1068 { 'q', REQ_VIEW_CLOSE },
1069 { KEY_TAB, REQ_VIEW_NEXT },
1070 { KEY_RETURN, REQ_ENTER },
1071 { KEY_UP, REQ_PREVIOUS },
1072 { KEY_DOWN, REQ_NEXT },
1073 { 'R', REQ_REFRESH },
1074 { KEY_F(5), REQ_REFRESH },
1075 { 'O', REQ_MAXIMIZE },
1077 /* Cursor navigation */
1078 { 'k', REQ_MOVE_UP },
1079 { 'j', REQ_MOVE_DOWN },
1080 { KEY_HOME, REQ_MOVE_FIRST_LINE },
1081 { KEY_END, REQ_MOVE_LAST_LINE },
1082 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
1083 { ' ', REQ_MOVE_PAGE_DOWN },
1084 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
1085 { 'b', REQ_MOVE_PAGE_UP },
1086 { '-', REQ_MOVE_PAGE_UP },
1089 { KEY_LEFT, REQ_SCROLL_LEFT },
1090 { KEY_RIGHT, REQ_SCROLL_RIGHT },
1091 { KEY_IC, REQ_SCROLL_LINE_UP },
1092 { KEY_DC, REQ_SCROLL_LINE_DOWN },
1093 { 'w', REQ_SCROLL_PAGE_UP },
1094 { 's', REQ_SCROLL_PAGE_DOWN },
1097 { '/', REQ_SEARCH },
1098 { '?', REQ_SEARCH_BACK },
1099 { 'n', REQ_FIND_NEXT },
1100 { 'N', REQ_FIND_PREV },
1104 { 'z', REQ_STOP_LOADING },
1105 { 'v', REQ_SHOW_VERSION },
1106 { 'r', REQ_SCREEN_REDRAW },
1107 { '.', REQ_TOGGLE_LINENO },
1108 { 'D', REQ_TOGGLE_DATE },
1109 { 'A', REQ_TOGGLE_AUTHOR },
1110 { 'g', REQ_TOGGLE_REV_GRAPH },
1111 { 'F', REQ_TOGGLE_REFS },
1112 { ':', REQ_PROMPT },
1113 { 'u', REQ_STATUS_UPDATE },
1114 { '!', REQ_STATUS_REVERT },
1115 { 'M', REQ_STATUS_MERGE },
1116 { '@', REQ_STAGE_NEXT },
1117 { ',', REQ_PARENT },
1121 #define KEYMAP_INFO \
1135 #define KEYMAP_(name) KEYMAP_##name
1140 static const struct enum_map keymap_table[] = {
1141 #define KEYMAP_(name) ENUM_MAP(#name, KEYMAP_##name)
1146 #define set_keymap(map, name) map_enum(map, keymap_table, name)
1148 struct keybinding_table {
1149 struct keybinding *data;
1153 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
1156 add_keybinding(enum keymap keymap, enum request request, int key)
1158 struct keybinding_table *table = &keybindings[keymap];
1160 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
1162 die("Failed to allocate keybinding");
1163 table->data[table->size].alias = key;
1164 table->data[table->size++].request = request;
1167 /* Looks for a key binding first in the given map, then in the generic map, and
1168 * lastly in the default keybindings. */
1170 get_keybinding(enum keymap keymap, int key)
1174 for (i = 0; i < keybindings[keymap].size; i++)
1175 if (keybindings[keymap].data[i].alias == key)
1176 return keybindings[keymap].data[i].request;
1178 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
1179 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
1180 return keybindings[KEYMAP_GENERIC].data[i].request;
1182 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
1183 if (default_keybindings[i].alias == key)
1184 return default_keybindings[i].request;
1186 return (enum request) key;
1195 static const struct key key_table[] = {
1196 { "Enter", KEY_RETURN },
1198 { "Backspace", KEY_BACKSPACE },
1200 { "Escape", KEY_ESC },
1201 { "Left", KEY_LEFT },
1202 { "Right", KEY_RIGHT },
1204 { "Down", KEY_DOWN },
1205 { "Insert", KEY_IC },
1206 { "Delete", KEY_DC },
1208 { "Home", KEY_HOME },
1210 { "PageUp", KEY_PPAGE },
1211 { "PageDown", KEY_NPAGE },
1221 { "F10", KEY_F(10) },
1222 { "F11", KEY_F(11) },
1223 { "F12", KEY_F(12) },
1227 get_key_value(const char *name)
1231 for (i = 0; i < ARRAY_SIZE(key_table); i++)
1232 if (!strcasecmp(key_table[i].name, name))
1233 return key_table[i].value;
1235 if (strlen(name) == 1 && isprint(*name))
1242 get_key_name(int key_value)
1244 static char key_char[] = "'X'";
1245 const char *seq = NULL;
1248 for (key = 0; key < ARRAY_SIZE(key_table); key++)
1249 if (key_table[key].value == key_value)
1250 seq = key_table[key].name;
1254 isprint(key_value)) {
1255 key_char[1] = (char) key_value;
1259 return seq ? seq : "(no key)";
1263 get_key(enum request request)
1265 static char buf[BUFSIZ];
1272 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1273 const struct keybinding *keybinding = &default_keybindings[i];
1275 if (keybinding->request != request)
1278 if (!string_format_from(buf, &pos, "%s%s", sep,
1279 get_key_name(keybinding->alias)))
1280 return "Too many keybindings!";
1287 struct run_request {
1290 const char *argv[SIZEOF_ARG];
1293 static struct run_request *run_request;
1294 static size_t run_requests;
1297 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
1299 struct run_request *req;
1301 if (argc >= ARRAY_SIZE(req->argv) - 1)
1304 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1309 req = &run_request[run_requests];
1310 req->keymap = keymap;
1312 req->argv[0] = NULL;
1314 if (!format_argv(req->argv, argv, FORMAT_NONE))
1317 return REQ_NONE + ++run_requests;
1320 static struct run_request *
1321 get_run_request(enum request request)
1323 if (request <= REQ_NONE)
1325 return &run_request[request - REQ_NONE - 1];
1329 add_builtin_run_requests(void)
1331 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
1332 const char *gc[] = { "git", "gc", NULL };
1339 { KEYMAP_MAIN, 'C', ARRAY_SIZE(cherry_pick) - 1, cherry_pick },
1340 { KEYMAP_GENERIC, 'G', ARRAY_SIZE(gc) - 1, gc },
1344 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1347 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argc, reqs[i].argv);
1348 if (req != REQ_NONE)
1349 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1354 * User config file handling.
1357 static int config_lineno;
1358 static bool config_errors;
1359 static const char *config_msg;
1361 static const struct enum_map color_map[] = {
1362 #define COLOR_MAP(name) ENUM_MAP(#name, COLOR_##name)
1374 static const struct enum_map attr_map[] = {
1375 #define ATTR_MAP(name) ENUM_MAP(#name, A_##name)
1382 ATTR_MAP(UNDERLINE),
1385 #define set_attribute(attr, name) map_enum(attr, attr_map, name)
1387 static int parse_step(double *opt, const char *arg)
1390 if (!strchr(arg, '%'))
1393 /* "Shift down" so 100% and 1 does not conflict. */
1394 *opt = (*opt - 1) / 100;
1397 config_msg = "Step value larger than 100%";
1402 config_msg = "Invalid step value";
1409 parse_int(int *opt, const char *arg, int min, int max)
1411 int value = atoi(arg);
1413 if (min <= value && value <= max) {
1418 config_msg = "Integer value out of bound";
1423 set_color(int *color, const char *name)
1425 if (map_enum(color, color_map, name))
1427 if (!prefixcmp(name, "color"))
1428 return parse_int(color, name + 5, 0, 255) == OK;
1432 /* Wants: object fgcolor bgcolor [attribute] */
1434 option_color_command(int argc, const char *argv[])
1436 struct line_info *info;
1438 if (argc != 3 && argc != 4) {
1439 config_msg = "Wrong number of arguments given to color command";
1443 info = get_line_info(argv[0]);
1445 static const struct enum_map obsolete[] = {
1446 ENUM_MAP("main-delim", LINE_DELIMITER),
1447 ENUM_MAP("main-date", LINE_DATE),
1448 ENUM_MAP("main-author", LINE_AUTHOR),
1452 if (!map_enum(&index, obsolete, argv[0])) {
1453 config_msg = "Unknown color name";
1456 info = &line_info[index];
1459 if (!set_color(&info->fg, argv[1]) ||
1460 !set_color(&info->bg, argv[2])) {
1461 config_msg = "Unknown color";
1465 if (argc == 4 && !set_attribute(&info->attr, argv[3])) {
1466 config_msg = "Unknown attribute";
1473 static int parse_bool(bool *opt, const char *arg)
1475 *opt = (!strcmp(arg, "1") || !strcmp(arg, "true") || !strcmp(arg, "yes"))
1481 parse_string(char *opt, const char *arg, size_t optsize)
1483 int arglen = strlen(arg);
1488 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1489 config_msg = "Unmatched quotation";
1492 arg += 1; arglen -= 2;
1494 string_ncopy_do(opt, optsize, arg, arglen);
1499 /* Wants: name = value */
1501 option_set_command(int argc, const char *argv[])
1504 config_msg = "Wrong number of arguments given to set command";
1508 if (strcmp(argv[1], "=")) {
1509 config_msg = "No value assigned";
1513 if (!strcmp(argv[0], "show-author"))
1514 return parse_bool(&opt_author, argv[2]);
1516 if (!strcmp(argv[0], "show-date"))
1517 return parse_bool(&opt_date, argv[2]);
1519 if (!strcmp(argv[0], "show-rev-graph"))
1520 return parse_bool(&opt_rev_graph, argv[2]);
1522 if (!strcmp(argv[0], "show-refs"))
1523 return parse_bool(&opt_show_refs, argv[2]);
1525 if (!strcmp(argv[0], "show-line-numbers"))
1526 return parse_bool(&opt_line_number, argv[2]);
1528 if (!strcmp(argv[0], "line-graphics"))
1529 return parse_bool(&opt_line_graphics, argv[2]);
1531 if (!strcmp(argv[0], "line-number-interval"))
1532 return parse_int(&opt_num_interval, argv[2], 1, 1024);
1534 if (!strcmp(argv[0], "author-width"))
1535 return parse_int(&opt_author_cols, argv[2], 0, 1024);
1537 if (!strcmp(argv[0], "horizontal-scroll"))
1538 return parse_step(&opt_hscroll, argv[2]);
1540 if (!strcmp(argv[0], "tab-size"))
1541 return parse_int(&opt_tab_size, argv[2], 1, 1024);
1543 if (!strcmp(argv[0], "commit-encoding"))
1544 return parse_string(opt_encoding, argv[2], sizeof(opt_encoding));
1546 config_msg = "Unknown variable name";
1550 /* Wants: mode request key */
1552 option_bind_command(int argc, const char *argv[])
1554 enum request request;
1559 config_msg = "Wrong number of arguments given to bind command";
1563 if (set_keymap(&keymap, argv[0]) == ERR) {
1564 config_msg = "Unknown key map";
1568 key = get_key_value(argv[1]);
1570 config_msg = "Unknown key";
1574 request = get_request(argv[2]);
1575 if (request == REQ_NONE) {
1576 static const struct enum_map obsolete[] = {
1577 ENUM_MAP("cherry-pick", REQ_NONE),
1578 ENUM_MAP("screen-resize", REQ_NONE),
1579 ENUM_MAP("tree-parent", REQ_PARENT),
1583 if (map_enum(&alias, obsolete, argv[2])) {
1584 if (alias != REQ_NONE)
1585 add_keybinding(keymap, alias, key);
1586 config_msg = "Obsolete request name";
1590 if (request == REQ_NONE && *argv[2]++ == '!')
1591 request = add_run_request(keymap, key, argc - 2, argv + 2);
1592 if (request == REQ_NONE) {
1593 config_msg = "Unknown request name";
1597 add_keybinding(keymap, request, key);
1603 set_option(const char *opt, char *value)
1605 const char *argv[SIZEOF_ARG];
1608 if (!argv_from_string(argv, &argc, value)) {
1609 config_msg = "Too many option arguments";
1613 if (!strcmp(opt, "color"))
1614 return option_color_command(argc, argv);
1616 if (!strcmp(opt, "set"))
1617 return option_set_command(argc, argv);
1619 if (!strcmp(opt, "bind"))
1620 return option_bind_command(argc, argv);
1622 config_msg = "Unknown option command";
1627 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1632 config_msg = "Internal error";
1634 /* Check for comment markers, since read_properties() will
1635 * only ensure opt and value are split at first " \t". */
1636 optlen = strcspn(opt, "#");
1640 if (opt[optlen] != 0) {
1641 config_msg = "No option value";
1645 /* Look for comment endings in the value. */
1646 size_t len = strcspn(value, "#");
1648 if (len < valuelen) {
1650 value[valuelen] = 0;
1653 status = set_option(opt, value);
1656 if (status == ERR) {
1657 warn("Error on line %d, near '%.*s': %s",
1658 config_lineno, (int) optlen, opt, config_msg);
1659 config_errors = TRUE;
1662 /* Always keep going if errors are encountered. */
1667 load_option_file(const char *path)
1671 /* It's OK that the file doesn't exist. */
1672 if (!io_open(&io, path))
1676 config_errors = FALSE;
1678 if (io_load(&io, " \t", read_option) == ERR ||
1679 config_errors == TRUE)
1680 warn("Errors while loading %s.", path);
1686 const char *home = getenv("HOME");
1687 const char *tigrc_user = getenv("TIGRC_USER");
1688 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1689 char buf[SIZEOF_STR];
1691 add_builtin_run_requests();
1694 tigrc_system = SYSCONFDIR "/tigrc";
1695 load_option_file(tigrc_system);
1698 if (!home || !string_format(buf, "%s/.tigrc", home))
1702 load_option_file(tigrc_user);
1715 /* The display array of active views and the index of the current view. */
1716 static struct view *display[2];
1717 static unsigned int current_view;
1719 #define foreach_displayed_view(view, i) \
1720 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1722 #define displayed_views() (display[1] != NULL ? 2 : 1)
1724 /* Current head and commit ID */
1725 static char ref_blob[SIZEOF_REF] = "";
1726 static char ref_commit[SIZEOF_REF] = "HEAD";
1727 static char ref_head[SIZEOF_REF] = "HEAD";
1730 const char *name; /* View name */
1731 const char *cmd_env; /* Command line set via environment */
1732 const char *id; /* Points to either of ref_{head,commit,blob} */
1734 struct view_ops *ops; /* View operations */
1736 enum keymap keymap; /* What keymap does this view have */
1737 bool git_dir; /* Whether the view requires a git directory. */
1739 char ref[SIZEOF_REF]; /* Hovered commit reference */
1740 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1742 int height, width; /* The width and height of the main window */
1743 WINDOW *win; /* The main window */
1744 WINDOW *title; /* The title window living below the main window */
1747 unsigned long offset; /* Offset of the window top */
1748 unsigned long yoffset; /* Offset from the window side. */
1749 unsigned long lineno; /* Current line number */
1750 unsigned long p_offset; /* Previous offset of the window top */
1751 unsigned long p_yoffset;/* Previous offset from the window side */
1752 unsigned long p_lineno; /* Previous current line number */
1753 bool p_restore; /* Should the previous position be restored. */
1756 char grep[SIZEOF_STR]; /* Search string */
1757 regex_t *regex; /* Pre-compiled regexp */
1759 /* If non-NULL, points to the view that opened this view. If this view
1760 * is closed tig will switch back to the parent view. */
1761 struct view *parent;
1764 size_t lines; /* Total number of lines */
1765 struct line *line; /* Line index */
1766 size_t line_alloc; /* Total number of allocated lines */
1767 unsigned int digits; /* Number of digits in the lines member. */
1770 struct line *curline; /* Line currently being drawn. */
1771 enum line_type curtype; /* Attribute currently used for drawing. */
1772 unsigned long col; /* Column when drawing. */
1773 bool has_scrolled; /* View was scrolled. */
1783 /* What type of content being displayed. Used in the title bar. */
1785 /* Default command arguments. */
1787 /* Open and reads in all view content. */
1788 bool (*open)(struct view *view);
1789 /* Read one line; updates view->line. */
1790 bool (*read)(struct view *view, char *data);
1791 /* Draw one line; @lineno must be < view->height. */
1792 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1793 /* Depending on view handle a special requests. */
1794 enum request (*request)(struct view *view, enum request request, struct line *line);
1795 /* Search for regexp in a line. */
1796 bool (*grep)(struct view *view, struct line *line);
1798 void (*select)(struct view *view, struct line *line);
1801 static struct view_ops blame_ops;
1802 static struct view_ops blob_ops;
1803 static struct view_ops diff_ops;
1804 static struct view_ops help_ops;
1805 static struct view_ops log_ops;
1806 static struct view_ops main_ops;
1807 static struct view_ops pager_ops;
1808 static struct view_ops stage_ops;
1809 static struct view_ops status_ops;
1810 static struct view_ops tree_ops;
1812 #define VIEW_STR(name, env, ref, ops, map, git) \
1813 { name, #env, ref, ops, map, git }
1815 #define VIEW_(id, name, ops, git, ref) \
1816 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1819 static struct view views[] = {
1820 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1821 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1822 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1823 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1824 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1825 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1826 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1827 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1828 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1829 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1832 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1833 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1835 #define foreach_view(view, i) \
1836 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1838 #define view_is_displayed(view) \
1839 (view == display[0] || view == display[1])
1846 static chtype line_graphics[] = {
1847 /* LINE_GRAPHIC_VLINE: */ '|'
1851 set_view_attr(struct view *view, enum line_type type)
1853 if (!view->curline->selected && view->curtype != type) {
1854 wattrset(view->win, get_line_attr(type));
1855 wchgat(view->win, -1, 0, type, NULL);
1856 view->curtype = type;
1861 draw_chars(struct view *view, enum line_type type, const char *string,
1862 int max_len, bool use_tilde)
1866 int trimmed = FALSE;
1867 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1873 len = utf8_length(&string, skip, &col, max_len, &trimmed, use_tilde);
1875 col = len = strlen(string);
1876 if (len > max_len) {
1880 col = len = max_len;
1885 set_view_attr(view, type);
1887 waddnstr(view->win, string, len);
1888 if (trimmed && use_tilde) {
1889 set_view_attr(view, LINE_DELIMITER);
1890 waddch(view->win, '~');
1898 draw_space(struct view *view, enum line_type type, int max, int spaces)
1900 static char space[] = " ";
1903 spaces = MIN(max, spaces);
1905 while (spaces > 0) {
1906 int len = MIN(spaces, sizeof(space) - 1);
1908 col += draw_chars(view, type, space, len, FALSE);
1916 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1918 view->col += draw_chars(view, type, string, view->width + view->yoffset - view->col, trim);
1919 return view->width + view->yoffset <= view->col;
1923 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1925 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1926 int max = view->width + view->yoffset - view->col;
1932 set_view_attr(view, type);
1933 /* Using waddch() instead of waddnstr() ensures that
1934 * they'll be rendered correctly for the cursor line. */
1935 for (i = skip; i < size; i++)
1936 waddch(view->win, graphic[i]);
1939 if (size < max && skip <= size)
1940 waddch(view->win, ' ');
1943 return view->width + view->yoffset <= view->col;
1947 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1949 int max = MIN(view->width + view->yoffset - view->col, len);
1953 col = draw_chars(view, type, text, max - 1, trim);
1955 col = draw_space(view, type, max - 1, max - 1);
1958 view->col += draw_space(view, LINE_DEFAULT, max - col, max - col);
1959 return view->width + view->yoffset <= view->col;
1963 draw_date(struct view *view, struct tm *time)
1965 char buf[DATE_COLS];
1970 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1971 date = timelen ? buf : NULL;
1973 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
1977 draw_author(struct view *view, const char *author)
1979 bool trim = opt_author_cols == 0 || opt_author_cols > 5 || !author;
1982 static char initials[10];
1985 #define is_initial_sep(c) (isspace(c) || ispunct(c) || (c) == '@')
1987 memset(initials, 0, sizeof(initials));
1988 for (pos = 0; *author && pos < opt_author_cols - 1; author++, pos++) {
1989 while (is_initial_sep(*author))
1991 strncpy(&initials[pos], author, sizeof(initials) - 1 - pos);
1992 while (*author && !is_initial_sep(author[1]))
1999 return draw_field(view, LINE_AUTHOR, author, opt_author_cols, trim);
2003 draw_mode(struct view *view, mode_t mode)
2009 else if (S_ISLNK(mode))
2011 else if (S_ISGITLINK(mode))
2013 else if (S_ISREG(mode) && mode & S_IXUSR)
2015 else if (S_ISREG(mode))
2020 return draw_field(view, LINE_MODE, str, STRING_SIZE("-rw-r--r-- "), FALSE);
2024 draw_lineno(struct view *view, unsigned int lineno)
2027 int digits3 = view->digits < 3 ? 3 : view->digits;
2028 int max = MIN(view->width + view->yoffset - view->col, digits3);
2031 lineno += view->offset + 1;
2032 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
2033 static char fmt[] = "%1ld";
2035 fmt[1] = '0' + (view->digits <= 9 ? digits3 : 1);
2036 if (string_format(number, fmt, lineno))
2040 view->col += draw_chars(view, LINE_LINE_NUMBER, text, max, TRUE);
2042 view->col += draw_space(view, LINE_LINE_NUMBER, max, digits3);
2043 return draw_graphic(view, LINE_DEFAULT, &line_graphics[LINE_GRAPHIC_VLINE], 1);
2047 draw_view_line(struct view *view, unsigned int lineno)
2050 bool selected = (view->offset + lineno == view->lineno);
2052 assert(view_is_displayed(view));
2054 if (view->offset + lineno >= view->lines)
2057 line = &view->line[view->offset + lineno];
2059 wmove(view->win, lineno, 0);
2061 wclrtoeol(view->win);
2063 view->curline = line;
2064 view->curtype = LINE_NONE;
2065 line->selected = FALSE;
2066 line->dirty = line->cleareol = 0;
2069 set_view_attr(view, LINE_CURSOR);
2070 line->selected = TRUE;
2071 view->ops->select(view, line);
2074 return view->ops->draw(view, line, lineno);
2078 redraw_view_dirty(struct view *view)
2083 for (lineno = 0; lineno < view->height; lineno++) {
2084 if (view->offset + lineno >= view->lines)
2086 if (!view->line[view->offset + lineno].dirty)
2089 if (!draw_view_line(view, lineno))
2095 wnoutrefresh(view->win);
2099 redraw_view_from(struct view *view, int lineno)
2101 assert(0 <= lineno && lineno < view->height);
2103 for (; lineno < view->height; lineno++) {
2104 if (!draw_view_line(view, lineno))
2108 wnoutrefresh(view->win);
2112 redraw_view(struct view *view)
2115 redraw_view_from(view, 0);
2120 update_view_title(struct view *view)
2122 char buf[SIZEOF_STR];
2123 char state[SIZEOF_STR];
2124 size_t bufpos = 0, statelen = 0;
2126 assert(view_is_displayed(view));
2128 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2129 unsigned int view_lines = view->offset + view->height;
2130 unsigned int lines = view->lines
2131 ? MIN(view_lines, view->lines) * 100 / view->lines
2134 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2143 time_t secs = time(NULL) - view->start_time;
2145 /* Three git seconds are a long time ... */
2147 string_format_from(state, &statelen, " loading %lds", secs);
2150 string_format_from(buf, &bufpos, "[%s]", view->name);
2151 if (*view->ref && bufpos < view->width) {
2152 size_t refsize = strlen(view->ref);
2153 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2155 if (minsize < view->width)
2156 refsize = view->width - minsize + 7;
2157 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2160 if (statelen && bufpos < view->width) {
2161 string_format_from(buf, &bufpos, "%s", state);
2164 if (view == display[current_view])
2165 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2167 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2169 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2170 wclrtoeol(view->title);
2171 wnoutrefresh(view->title);
2175 resize_display(void)
2178 struct view *base = display[0];
2179 struct view *view = display[1] ? display[1] : display[0];
2181 /* Setup window dimensions */
2183 getmaxyx(stdscr, base->height, base->width);
2185 /* Make room for the status window. */
2189 /* Horizontal split. */
2190 view->width = base->width;
2191 view->height = SCALE_SPLIT_VIEW(base->height);
2192 base->height -= view->height;
2194 /* Make room for the title bar. */
2198 /* Make room for the title bar. */
2203 foreach_displayed_view (view, i) {
2205 view->win = newwin(view->height, 0, offset, 0);
2207 die("Failed to create %s view", view->name);
2209 scrollok(view->win, FALSE);
2211 view->title = newwin(1, 0, offset + view->height, 0);
2213 die("Failed to create title window");
2216 wresize(view->win, view->height, view->width);
2217 mvwin(view->win, offset, 0);
2218 mvwin(view->title, offset + view->height, 0);
2221 offset += view->height + 1;
2226 redraw_display(bool clear)
2231 foreach_displayed_view (view, i) {
2235 update_view_title(view);
2240 toggle_view_option(bool *option, const char *help)
2243 redraw_display(FALSE);
2244 report("%sabling %s", *option ? "En" : "Dis", help);
2248 maximize_view(struct view *view)
2250 memset(display, 0, sizeof(display));
2252 display[current_view] = view;
2254 redraw_display(FALSE);
2264 goto_view_line(struct view *view, unsigned long offset, unsigned long lineno)
2266 if (lineno >= view->lines)
2267 lineno = view->lines > 0 ? view->lines - 1 : 0;
2269 if (offset > lineno || offset + view->height <= lineno) {
2270 unsigned long half = view->height / 2;
2273 offset = lineno - half;
2278 if (offset != view->offset || lineno != view->lineno) {
2279 view->offset = offset;
2280 view->lineno = lineno;
2288 apply_step(double step, int value)
2292 value *= step + 0.01;
2293 return value ? value : 1;
2296 /* Scrolling backend */
2298 do_scroll_view(struct view *view, int lines)
2300 bool redraw_current_line = FALSE;
2302 /* The rendering expects the new offset. */
2303 view->offset += lines;
2305 assert(0 <= view->offset && view->offset < view->lines);
2308 /* Move current line into the view. */
2309 if (view->lineno < view->offset) {
2310 view->lineno = view->offset;
2311 redraw_current_line = TRUE;
2312 } else if (view->lineno >= view->offset + view->height) {
2313 view->lineno = view->offset + view->height - 1;
2314 redraw_current_line = TRUE;
2317 assert(view->offset <= view->lineno && view->lineno < view->lines);
2319 /* Redraw the whole screen if scrolling is pointless. */
2320 if (view->height < ABS(lines)) {
2324 int line = lines > 0 ? view->height - lines : 0;
2325 int end = line + ABS(lines);
2327 scrollok(view->win, TRUE);
2328 wscrl(view->win, lines);
2329 scrollok(view->win, FALSE);
2331 while (line < end && draw_view_line(view, line))
2334 if (redraw_current_line)
2335 draw_view_line(view, view->lineno - view->offset);
2336 wnoutrefresh(view->win);
2339 view->has_scrolled = TRUE;
2343 /* Scroll frontend */
2345 scroll_view(struct view *view, enum request request)
2349 assert(view_is_displayed(view));
2352 case REQ_SCROLL_LEFT:
2353 if (view->yoffset == 0) {
2354 report("Cannot scroll beyond the first column");
2357 if (view->yoffset <= apply_step(opt_hscroll, view->width))
2360 view->yoffset -= apply_step(opt_hscroll, view->width);
2361 redraw_view_from(view, 0);
2364 case REQ_SCROLL_RIGHT:
2365 view->yoffset += apply_step(opt_hscroll, view->width);
2369 case REQ_SCROLL_PAGE_DOWN:
2370 lines = view->height;
2371 case REQ_SCROLL_LINE_DOWN:
2372 if (view->offset + lines > view->lines)
2373 lines = view->lines - view->offset;
2375 if (lines == 0 || view->offset + view->height >= view->lines) {
2376 report("Cannot scroll beyond the last line");
2381 case REQ_SCROLL_PAGE_UP:
2382 lines = view->height;
2383 case REQ_SCROLL_LINE_UP:
2384 if (lines > view->offset)
2385 lines = view->offset;
2388 report("Cannot scroll beyond the first line");
2396 die("request %d not handled in switch", request);
2399 do_scroll_view(view, lines);
2404 move_view(struct view *view, enum request request)
2406 int scroll_steps = 0;
2410 case REQ_MOVE_FIRST_LINE:
2411 steps = -view->lineno;
2414 case REQ_MOVE_LAST_LINE:
2415 steps = view->lines - view->lineno - 1;
2418 case REQ_MOVE_PAGE_UP:
2419 steps = view->height > view->lineno
2420 ? -view->lineno : -view->height;
2423 case REQ_MOVE_PAGE_DOWN:
2424 steps = view->lineno + view->height >= view->lines
2425 ? view->lines - view->lineno - 1 : view->height;
2437 die("request %d not handled in switch", request);
2440 if (steps <= 0 && view->lineno == 0) {
2441 report("Cannot move beyond the first line");
2444 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2445 report("Cannot move beyond the last line");
2449 /* Move the current line */
2450 view->lineno += steps;
2451 assert(0 <= view->lineno && view->lineno < view->lines);
2453 /* Check whether the view needs to be scrolled */
2454 if (view->lineno < view->offset ||
2455 view->lineno >= view->offset + view->height) {
2456 scroll_steps = steps;
2457 if (steps < 0 && -steps > view->offset) {
2458 scroll_steps = -view->offset;
2460 } else if (steps > 0) {
2461 if (view->lineno == view->lines - 1 &&
2462 view->lines > view->height) {
2463 scroll_steps = view->lines - view->offset - 1;
2464 if (scroll_steps >= view->height)
2465 scroll_steps -= view->height - 1;
2470 if (!view_is_displayed(view)) {
2471 view->offset += scroll_steps;
2472 assert(0 <= view->offset && view->offset < view->lines);
2473 view->ops->select(view, &view->line[view->lineno]);
2477 /* Repaint the old "current" line if we be scrolling */
2478 if (ABS(steps) < view->height)
2479 draw_view_line(view, view->lineno - steps - view->offset);
2482 do_scroll_view(view, scroll_steps);
2486 /* Draw the current line */
2487 draw_view_line(view, view->lineno - view->offset);
2489 wnoutrefresh(view->win);
2498 static void search_view(struct view *view, enum request request);
2501 select_view_line(struct view *view, unsigned long lineno)
2503 unsigned long old_lineno = view->lineno;
2504 unsigned long old_offset = view->offset;
2506 if (goto_view_line(view, view->offset, lineno)) {
2507 if (view_is_displayed(view)) {
2508 if (old_offset != view->offset) {
2511 draw_view_line(view, old_lineno - view->offset);
2512 draw_view_line(view, view->lineno - view->offset);
2513 wnoutrefresh(view->win);
2516 view->ops->select(view, &view->line[view->lineno]);
2522 find_next(struct view *view, enum request request)
2524 unsigned long lineno = view->lineno;
2529 report("No previous search");
2531 search_view(view, request);
2541 case REQ_SEARCH_BACK:
2550 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2551 lineno += direction;
2553 /* Note, lineno is unsigned long so will wrap around in which case it
2554 * will become bigger than view->lines. */
2555 for (; lineno < view->lines; lineno += direction) {
2556 if (view->ops->grep(view, &view->line[lineno])) {
2557 select_view_line(view, lineno);
2558 report("Line %ld matches '%s'", lineno + 1, view->grep);
2563 report("No match found for '%s'", view->grep);
2567 search_view(struct view *view, enum request request)
2572 regfree(view->regex);
2575 view->regex = calloc(1, sizeof(*view->regex));
2580 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2581 if (regex_err != 0) {
2582 char buf[SIZEOF_STR] = "unknown error";
2584 regerror(regex_err, view->regex, buf, sizeof(buf));
2585 report("Search failed: %s", buf);
2589 string_copy(view->grep, opt_search);
2591 find_next(view, request);
2595 * Incremental updating
2599 reset_view(struct view *view)
2603 for (i = 0; i < view->lines; i++)
2604 free(view->line[i].data);
2607 view->p_offset = view->offset;
2608 view->p_yoffset = view->yoffset;
2609 view->p_lineno = view->lineno;
2616 view->line_alloc = 0;
2618 view->update_secs = 0;
2622 free_argv(const char *argv[])
2626 for (argc = 0; argv[argc]; argc++)
2627 free((void *) argv[argc]);
2631 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2633 char buf[SIZEOF_STR];
2635 bool noreplace = flags == FORMAT_NONE;
2637 free_argv(dst_argv);
2639 for (argc = 0; src_argv[argc]; argc++) {
2640 const char *arg = src_argv[argc];
2644 char *next = strstr(arg, "%(");
2645 int len = next - arg;
2648 if (!next || noreplace) {
2649 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2654 } else if (!prefixcmp(next, "%(directory)")) {
2657 } else if (!prefixcmp(next, "%(file)")) {
2660 } else if (!prefixcmp(next, "%(ref)")) {
2661 value = *opt_ref ? opt_ref : "HEAD";
2663 } else if (!prefixcmp(next, "%(head)")) {
2666 } else if (!prefixcmp(next, "%(commit)")) {
2669 } else if (!prefixcmp(next, "%(blob)")) {
2673 report("Unknown replacement: `%s`", next);
2677 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2680 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2683 dst_argv[argc] = strdup(buf);
2684 if (!dst_argv[argc])
2688 dst_argv[argc] = NULL;
2690 return src_argv[argc] == NULL;
2694 restore_view_position(struct view *view)
2696 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2699 /* Changing the view position cancels the restoring. */
2700 /* FIXME: Changing back to the first line is not detected. */
2701 if (view->offset != 0 || view->lineno != 0) {
2702 view->p_restore = FALSE;
2706 if (goto_view_line(view, view->p_offset, view->p_lineno) &&
2707 view_is_displayed(view))
2710 view->yoffset = view->p_yoffset;
2711 view->p_restore = FALSE;
2717 end_update(struct view *view, bool force)
2721 while (!view->ops->read(view, NULL))
2724 set_nonblocking_input(FALSE);
2726 kill_io(view->pipe);
2727 done_io(view->pipe);
2732 setup_update(struct view *view, const char *vid)
2734 set_nonblocking_input(TRUE);
2736 string_copy_rev(view->vid, vid);
2737 view->pipe = &view->io;
2738 view->start_time = time(NULL);
2742 prepare_update(struct view *view, const char *argv[], const char *dir,
2743 enum format_flags flags)
2746 end_update(view, TRUE);
2747 return init_io_rd(&view->io, argv, dir, flags);
2751 prepare_update_file(struct view *view, const char *name)
2754 end_update(view, TRUE);
2755 return io_open(&view->io, name);
2759 begin_update(struct view *view, bool refresh)
2762 end_update(view, TRUE);
2765 if (!start_io(&view->io))
2769 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2772 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2775 /* Put the current ref_* value to the view title ref
2776 * member. This is needed by the blob view. Most other
2777 * views sets it automatically after loading because the
2778 * first line is a commit line. */
2779 string_copy_rev(view->ref, view->id);
2782 setup_update(view, view->id);
2787 #define ITEM_CHUNK_SIZE 256
2789 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2791 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2792 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2794 if (mem == NULL || num_chunks != num_chunks_new) {
2795 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2796 mem = realloc(mem, *size * item_size);
2802 static struct line *
2803 realloc_lines(struct view *view, size_t line_size)
2805 size_t alloc = view->line_alloc;
2806 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2807 sizeof(*view->line));
2813 view->line_alloc = alloc;
2818 update_view(struct view *view)
2820 char out_buffer[BUFSIZ * 2];
2822 /* Clear the view and redraw everything since the tree sorting
2823 * might have rearranged things. */
2824 bool redraw = view->lines == 0;
2825 bool can_read = TRUE;
2830 if (!io_can_read(view->pipe)) {
2831 if (view->lines == 0 && view_is_displayed(view)) {
2832 time_t secs = time(NULL) - view->start_time;
2834 if (secs > 1 && secs > view->update_secs) {
2835 if (view->update_secs == 0)
2837 update_view_title(view);
2838 view->update_secs = secs;
2844 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2845 if (opt_iconv != ICONV_NONE) {
2846 ICONV_CONST char *inbuf = line;
2847 size_t inlen = strlen(line) + 1;
2849 char *outbuf = out_buffer;
2850 size_t outlen = sizeof(out_buffer);
2854 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2855 if (ret != (size_t) -1)
2859 if (!view->ops->read(view, line)) {
2860 report("Allocation failure");
2861 end_update(view, TRUE);
2867 unsigned long lines = view->lines;
2870 for (digits = 0; lines; digits++)
2873 /* Keep the displayed view in sync with line number scaling. */
2874 if (digits != view->digits) {
2875 view->digits = digits;
2876 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2881 if (io_error(view->pipe)) {
2882 report("Failed to read: %s", io_strerror(view->pipe));
2883 end_update(view, TRUE);
2885 } else if (io_eof(view->pipe)) {
2887 end_update(view, FALSE);
2890 if (restore_view_position(view))
2893 if (!view_is_displayed(view))
2897 redraw_view_from(view, 0);
2899 redraw_view_dirty(view);
2901 /* Update the title _after_ the redraw so that if the redraw picks up a
2902 * commit reference in view->ref it'll be available here. */
2903 update_view_title(view);
2907 static struct line *
2908 add_line_data(struct view *view, void *data, enum line_type type)
2912 if (!realloc_lines(view, view->lines + 1))
2915 line = &view->line[view->lines++];
2916 memset(line, 0, sizeof(*line));
2924 static struct line *
2925 add_line_text(struct view *view, const char *text, enum line_type type)
2927 char *data = text ? strdup(text) : NULL;
2929 return data ? add_line_data(view, data, type) : NULL;
2932 static struct line *
2933 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2935 char buf[SIZEOF_STR];
2938 va_start(args, fmt);
2939 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2943 return buf[0] ? add_line_text(view, buf, type) : NULL;
2951 OPEN_DEFAULT = 0, /* Use default view switching. */
2952 OPEN_SPLIT = 1, /* Split current view. */
2953 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2954 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2955 OPEN_PREPARED = 32, /* Open already prepared command. */
2959 open_view(struct view *prev, enum request request, enum open_flags flags)
2961 bool split = !!(flags & OPEN_SPLIT);
2962 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2963 bool nomaximize = !!(flags & OPEN_REFRESH);
2964 struct view *view = VIEW(request);
2965 int nviews = displayed_views();
2966 struct view *base_view = display[0];
2968 if (view == prev && nviews == 1 && !reload) {
2969 report("Already in %s view", view->name);
2973 if (view->git_dir && !opt_git_dir[0]) {
2974 report("The %s view is disabled in pager view", view->name);
2981 } else if (!nomaximize) {
2982 /* Maximize the current view. */
2983 memset(display, 0, sizeof(display));
2985 display[current_view] = view;
2988 /* Resize the view when switching between split- and full-screen,
2989 * or when switching between two different full-screen views. */
2990 if (nviews != displayed_views() ||
2991 (nviews == 1 && base_view != display[0]))
2994 if (view->ops->open) {
2996 end_update(view, TRUE);
2997 if (!view->ops->open(view)) {
2998 report("Failed to load %s view", view->name);
3001 restore_view_position(view);
3003 } else if ((reload || strcmp(view->vid, view->id)) &&
3004 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
3005 report("Failed to load %s view", view->name);
3009 if (split && prev->lineno - prev->offset >= prev->height) {
3010 /* Take the title line into account. */
3011 int lines = prev->lineno - prev->offset - prev->height + 1;
3013 /* Scroll the view that was split if the current line is
3014 * outside the new limited view. */
3015 do_scroll_view(prev, lines);
3018 if (prev && view != prev) {
3020 /* "Blur" the previous view. */
3021 update_view_title(prev);
3024 view->parent = prev;
3027 if (view->pipe && view->lines == 0) {
3028 /* Clear the old view and let the incremental updating refill
3031 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
3033 } else if (view_is_displayed(view)) {
3040 open_external_viewer(const char *argv[], const char *dir)
3042 def_prog_mode(); /* save current tty modes */
3043 endwin(); /* restore original tty modes */
3044 run_io_fg(argv, dir);
3045 fprintf(stderr, "Press Enter to continue");
3048 redraw_display(TRUE);
3052 open_mergetool(const char *file)
3054 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
3056 open_external_viewer(mergetool_argv, opt_cdup);
3060 open_editor(bool from_root, const char *file)
3062 const char *editor_argv[] = { "vi", file, NULL };
3065 editor = getenv("GIT_EDITOR");
3066 if (!editor && *opt_editor)
3067 editor = opt_editor;
3069 editor = getenv("VISUAL");
3071 editor = getenv("EDITOR");
3075 editor_argv[0] = editor;
3076 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3080 open_run_request(enum request request)
3082 struct run_request *req = get_run_request(request);
3083 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3086 report("Unknown run request");
3090 if (format_argv(argv, req->argv, FORMAT_ALL))
3091 open_external_viewer(argv, NULL);
3096 * User request switch noodle
3100 view_driver(struct view *view, enum request request)
3104 if (request == REQ_NONE) {
3109 if (request > REQ_NONE) {
3110 open_run_request(request);
3111 /* FIXME: When all views can refresh always do this. */
3112 if (view == VIEW(REQ_VIEW_STATUS) ||
3113 view == VIEW(REQ_VIEW_MAIN) ||
3114 view == VIEW(REQ_VIEW_LOG) ||
3115 view == VIEW(REQ_VIEW_STAGE))
3116 request = REQ_REFRESH;
3121 if (view && view->lines) {
3122 request = view->ops->request(view, request, &view->line[view->lineno]);
3123 if (request == REQ_NONE)
3130 case REQ_MOVE_PAGE_UP:
3131 case REQ_MOVE_PAGE_DOWN:
3132 case REQ_MOVE_FIRST_LINE:
3133 case REQ_MOVE_LAST_LINE:
3134 move_view(view, request);
3137 case REQ_SCROLL_LEFT:
3138 case REQ_SCROLL_RIGHT:
3139 case REQ_SCROLL_LINE_DOWN:
3140 case REQ_SCROLL_LINE_UP:
3141 case REQ_SCROLL_PAGE_DOWN:
3142 case REQ_SCROLL_PAGE_UP:
3143 scroll_view(view, request);
3146 case REQ_VIEW_BLAME:
3148 report("No file chosen, press %s to open tree view",
3149 get_key(REQ_VIEW_TREE));
3152 open_view(view, request, OPEN_DEFAULT);
3157 report("No file chosen, press %s to open tree view",
3158 get_key(REQ_VIEW_TREE));
3161 open_view(view, request, OPEN_DEFAULT);
3164 case REQ_VIEW_PAGER:
3165 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3166 report("No pager content, press %s to run command from prompt",
3167 get_key(REQ_PROMPT));
3170 open_view(view, request, OPEN_DEFAULT);
3173 case REQ_VIEW_STAGE:
3174 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3175 report("No stage content, press %s to open the status view and choose file",
3176 get_key(REQ_VIEW_STATUS));
3179 open_view(view, request, OPEN_DEFAULT);
3182 case REQ_VIEW_STATUS:
3183 if (opt_is_inside_work_tree == FALSE) {
3184 report("The status view requires a working tree");
3187 open_view(view, request, OPEN_DEFAULT);
3195 open_view(view, request, OPEN_DEFAULT);
3200 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3202 if ((view == VIEW(REQ_VIEW_DIFF) &&
3203 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3204 (view == VIEW(REQ_VIEW_DIFF) &&
3205 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3206 (view == VIEW(REQ_VIEW_STAGE) &&
3207 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3208 (view == VIEW(REQ_VIEW_BLOB) &&
3209 view->parent == VIEW(REQ_VIEW_TREE))) {
3212 view = view->parent;
3213 line = view->lineno;
3214 move_view(view, request);
3215 if (view_is_displayed(view))
3216 update_view_title(view);
3217 if (line != view->lineno)
3218 view->ops->request(view, REQ_ENTER,
3219 &view->line[view->lineno]);
3222 move_view(view, request);
3228 int nviews = displayed_views();
3229 int next_view = (current_view + 1) % nviews;
3231 if (next_view == current_view) {
3232 report("Only one view is displayed");
3236 current_view = next_view;
3237 /* Blur out the title of the previous view. */
3238 update_view_title(view);
3243 report("Refreshing is not yet supported for the %s view", view->name);
3247 if (displayed_views() == 2)
3248 maximize_view(view);
3251 case REQ_TOGGLE_LINENO:
3252 toggle_view_option(&opt_line_number, "line numbers");
3255 case REQ_TOGGLE_DATE:
3256 toggle_view_option(&opt_date, "date display");
3259 case REQ_TOGGLE_AUTHOR:
3260 toggle_view_option(&opt_author, "author display");
3263 case REQ_TOGGLE_REV_GRAPH:
3264 toggle_view_option(&opt_rev_graph, "revision graph display");
3267 case REQ_TOGGLE_REFS:
3268 toggle_view_option(&opt_show_refs, "reference display");
3272 case REQ_SEARCH_BACK:
3273 search_view(view, request);
3278 find_next(view, request);
3281 case REQ_STOP_LOADING:
3282 for (i = 0; i < ARRAY_SIZE(views); i++) {
3285 report("Stopped loading the %s view", view->name),
3286 end_update(view, TRUE);
3290 case REQ_SHOW_VERSION:
3291 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3294 case REQ_SCREEN_REDRAW:
3295 redraw_display(TRUE);
3299 report("Nothing to edit");
3303 report("Nothing to enter");
3306 case REQ_VIEW_CLOSE:
3307 /* XXX: Mark closed views by letting view->parent point to the
3308 * view itself. Parents to closed view should never be
3311 view->parent->parent != view->parent) {
3312 maximize_view(view->parent);
3313 view->parent = view;
3321 report("Unknown key, press 'h' for help");
3330 * View backend utilities
3334 parse_timezone(time_t *time, const char *zone)
3338 tz = ('0' - zone[1]) * 60 * 60 * 10;
3339 tz += ('0' - zone[2]) * 60 * 60;
3340 tz += ('0' - zone[3]) * 60;
3341 tz += ('0' - zone[4]);
3349 /* Parse author lines where the name may be empty:
3350 * author <email@address.tld> 1138474660 +0100
3353 parse_author_line(char *ident, char *author, size_t authorsize, struct tm *tm)
3355 char *nameend = strchr(ident, '<');
3356 char *emailend = strchr(ident, '>');
3358 if (nameend && emailend)
3359 *nameend = *emailend = 0;
3360 ident = chomp_string(ident);
3363 ident = chomp_string(nameend + 1);
3368 string_ncopy_do(author, authorsize, ident, strlen(ident));
3370 /* Parse epoch and timezone */
3371 if (emailend && emailend[1] == ' ') {
3372 char *secs = emailend + 2;
3373 char *zone = strchr(secs, ' ');
3374 time_t time = (time_t) atol(secs);
3376 if (zone && strlen(zone) == STRING_SIZE(" +0700"))
3377 parse_timezone(&time, zone + 1);
3379 gmtime_r(&time, tm);
3383 static enum input_status
3384 select_commit_parent_handler(void *data, char *buf, int c)
3386 size_t parents = *(size_t *) data;
3393 parent = atoi(buf) * 10;
3396 if (parent > parents)
3402 select_commit_parent(const char *id, char rev[SIZEOF_REV], const char *path)
3404 char buf[SIZEOF_STR * 4];
3405 const char *revlist_argv[] = {
3406 "git", "rev-list", "-1", "--parents", id, "--", path, NULL
3410 if (!run_io_buf(revlist_argv, buf, sizeof(buf)) ||
3411 !*chomp_string(buf) ||
3412 (parents = (strlen(buf) / 40) - 1) < 0) {
3413 report("Failed to get parent information");
3416 } else if (parents == 0) {
3418 report("Path '%s' does not exist in the parent", path);
3420 report("The selected commit has no parents");
3425 char prompt[SIZEOF_STR];
3428 if (!string_format(prompt, "Which parent? [1..%d] ", parents))
3430 result = prompt_input(prompt, select_commit_parent_handler, &parents);
3433 parents = atoi(result);
3436 string_copy_rev(rev, &buf[41 * parents]);
3445 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3447 char text[SIZEOF_STR];
3449 if (opt_line_number && draw_lineno(view, lineno))
3452 string_expand(text, sizeof(text), line->data, opt_tab_size);
3453 draw_text(view, line->type, text, TRUE);
3458 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3460 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3461 char refbuf[SIZEOF_STR];
3464 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3465 ref = chomp_string(refbuf);
3470 /* This is the only fatal call, since it can "corrupt" the buffer. */
3471 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3478 add_pager_refs(struct view *view, struct line *line)
3480 char buf[SIZEOF_STR];
3481 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3483 size_t bufpos = 0, refpos = 0;
3484 const char *sep = "Refs: ";
3485 bool is_tag = FALSE;
3487 assert(line->type == LINE_COMMIT);
3489 refs = get_refs(commit_id);
3491 if (view == VIEW(REQ_VIEW_DIFF))
3492 goto try_add_describe_ref;
3497 struct ref *ref = refs[refpos];
3498 const char *fmt = ref->tag ? "%s[%s]" :
3499 ref->remote ? "%s<%s>" : "%s%s";
3501 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3506 } while (refs[refpos++]->next);
3508 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3509 try_add_describe_ref:
3510 /* Add <tag>-g<commit_id> "fake" reference. */
3511 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3518 add_line_text(view, buf, LINE_PP_REFS);
3522 pager_read(struct view *view, char *data)
3529 line = add_line_text(view, data, get_line_type(data));
3533 if (line->type == LINE_COMMIT &&
3534 (view == VIEW(REQ_VIEW_DIFF) ||
3535 view == VIEW(REQ_VIEW_LOG)))
3536 add_pager_refs(view, line);
3542 pager_request(struct view *view, enum request request, struct line *line)
3546 if (request != REQ_ENTER)
3549 if (line->type == LINE_COMMIT &&
3550 (view == VIEW(REQ_VIEW_LOG) ||
3551 view == VIEW(REQ_VIEW_PAGER))) {
3552 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3556 /* Always scroll the view even if it was split. That way
3557 * you can use Enter to scroll through the log view and
3558 * split open each commit diff. */
3559 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3561 /* FIXME: A minor workaround. Scrolling the view will call report("")
3562 * but if we are scrolling a non-current view this won't properly
3563 * update the view title. */
3565 update_view_title(view);
3571 pager_grep(struct view *view, struct line *line)
3574 char *text = line->data;
3579 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3586 pager_select(struct view *view, struct line *line)
3588 if (line->type == LINE_COMMIT) {
3589 char *text = (char *)line->data + STRING_SIZE("commit ");
3591 if (view != VIEW(REQ_VIEW_PAGER))
3592 string_copy_rev(view->ref, text);
3593 string_copy_rev(ref_commit, text);
3597 static struct view_ops pager_ops = {
3608 static const char *log_argv[SIZEOF_ARG] = {
3609 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3613 log_request(struct view *view, enum request request, struct line *line)
3618 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3621 return pager_request(view, request, line);
3625 static struct view_ops log_ops = {
3636 static const char *diff_argv[SIZEOF_ARG] = {
3637 "git", "show", "--pretty=fuller", "--no-color", "--root",
3638 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3641 static struct view_ops diff_ops = {
3657 help_open(struct view *view)
3659 char buf[SIZEOF_STR];
3663 if (view->lines > 0)
3666 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3668 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3671 if (req_info[i].request == REQ_NONE)
3674 if (!req_info[i].request) {
3675 add_line_text(view, "", LINE_DEFAULT);
3676 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3680 key = get_key(req_info[i].request);
3682 key = "(no key defined)";
3684 for (bufpos = 0; bufpos <= req_info[i].namelen; bufpos++) {
3685 buf[bufpos] = tolower(req_info[i].name[bufpos]);
3686 if (buf[bufpos] == '_')
3690 add_line_format(view, LINE_DEFAULT, " %-25s %-20s %s",
3691 key, buf, req_info[i].help);
3695 add_line_text(view, "", LINE_DEFAULT);
3696 add_line_text(view, "External commands:", LINE_DEFAULT);
3699 for (i = 0; i < run_requests; i++) {
3700 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3707 key = get_key_name(req->key);
3709 key = "(no key defined)";
3711 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3712 if (!string_format_from(buf, &bufpos, "%s%s",
3713 argc ? " " : "", req->argv[argc]))
3716 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3717 keymap_table[req->keymap].name, key, buf);
3723 static struct view_ops help_ops = {
3739 struct tree_stack_entry {
3740 struct tree_stack_entry *prev; /* Entry below this in the stack */
3741 unsigned long lineno; /* Line number to restore */
3742 char *name; /* Position of name in opt_path */
3745 /* The top of the path stack. */
3746 static struct tree_stack_entry *tree_stack = NULL;
3747 unsigned long tree_lineno = 0;
3750 pop_tree_stack_entry(void)
3752 struct tree_stack_entry *entry = tree_stack;
3754 tree_lineno = entry->lineno;
3756 tree_stack = entry->prev;
3761 push_tree_stack_entry(const char *name, unsigned long lineno)
3763 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3764 size_t pathlen = strlen(opt_path);
3769 entry->prev = tree_stack;
3770 entry->name = opt_path + pathlen;
3773 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3774 pop_tree_stack_entry();
3778 /* Move the current line to the first tree entry. */
3780 entry->lineno = lineno;
3783 /* Parse output from git-ls-tree(1):
3785 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3788 #define SIZEOF_TREE_ATTR \
3789 STRING_SIZE("100644 blob f931e1d229c3e185caad4449bf5b66ed72462657\t")
3791 #define SIZEOF_TREE_MODE \
3792 STRING_SIZE("100644 ")
3794 #define TREE_ID_OFFSET \
3795 STRING_SIZE("100644 blob ")
3798 char id[SIZEOF_REV];
3800 struct tm time; /* Date from the author ident. */
3801 char author[75]; /* Author of the commit. */
3806 tree_path(struct line *line)
3808 return ((struct tree_entry *) line->data)->name;
3813 tree_compare_entry(struct line *line1, struct line *line2)
3815 if (line1->type != line2->type)
3816 return line1->type == LINE_TREE_DIR ? -1 : 1;
3817 return strcmp(tree_path(line1), tree_path(line2));
3820 static struct line *
3821 tree_entry(struct view *view, enum line_type type, const char *path,
3822 const char *mode, const char *id)
3824 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3825 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3827 if (!entry || !line) {
3832 strncpy(entry->name, path, strlen(path));
3834 entry->mode = strtoul(mode, NULL, 8);
3836 string_copy_rev(entry->id, id);
3842 tree_read_date(struct view *view, char *text, bool *read_date)
3844 static char author_name[SIZEOF_STR];
3845 static struct tm author_time;
3847 if (!text && *read_date) {
3852 char *path = *opt_path ? opt_path : ".";
3853 /* Find next entry to process */
3854 const char *log_file[] = {
3855 "git", "log", "--no-color", "--pretty=raw",
3856 "--cc", "--raw", view->id, "--", path, NULL
3861 tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL);
3862 report("Tree is empty");
3866 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3867 report("Failed to load tree data");
3871 done_io(view->pipe);
3876 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3877 parse_author_line(text + STRING_SIZE("author "),
3878 author_name, sizeof(author_name), &author_time);
3880 } else if (*text == ':') {
3882 size_t annotated = 1;
3885 pos = strchr(text, '\t');
3889 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3890 text += strlen(opt_prefix);
3891 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3892 text += strlen(opt_path);
3893 pos = strchr(text, '/');
3897 for (i = 1; i < view->lines; i++) {
3898 struct line *line = &view->line[i];
3899 struct tree_entry *entry = line->data;
3901 annotated += !!*entry->author;
3902 if (*entry->author || strcmp(entry->name, text))
3905 string_copy(entry->author, author_name);
3906 memcpy(&entry->time, &author_time, sizeof(entry->time));
3911 if (annotated == view->lines)
3912 kill_io(view->pipe);
3918 tree_read(struct view *view, char *text)
3920 static bool read_date = FALSE;
3921 struct tree_entry *data;
3922 struct line *entry, *line;
3923 enum line_type type;
3924 size_t textlen = text ? strlen(text) : 0;
3925 char *path = text + SIZEOF_TREE_ATTR;
3927 if (read_date || !text)
3928 return tree_read_date(view, text, &read_date);
3930 if (textlen <= SIZEOF_TREE_ATTR)
3932 if (view->lines == 0 &&
3933 !tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL))
3936 /* Strip the path part ... */
3938 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3939 size_t striplen = strlen(opt_path);
3941 if (pathlen > striplen)
3942 memmove(path, path + striplen,
3943 pathlen - striplen + 1);
3945 /* Insert "link" to parent directory. */
3946 if (view->lines == 1 &&
3947 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3951 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
3952 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3957 /* Skip "Directory ..." and ".." line. */
3958 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3959 if (tree_compare_entry(line, entry) <= 0)
3962 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3966 for (; line <= entry; line++)
3967 line->dirty = line->cleareol = 1;
3971 if (tree_lineno > view->lineno) {
3972 view->lineno = tree_lineno;
3980 tree_draw(struct view *view, struct line *line, unsigned int lineno)
3982 struct tree_entry *entry = line->data;
3984 if (line->type == LINE_TREE_HEAD) {
3985 if (draw_text(view, line->type, "Directory path /", TRUE))
3988 if (draw_mode(view, entry->mode))
3991 if (opt_author && draw_author(view, entry->author))
3994 if (opt_date && draw_date(view, *entry->author ? &entry->time : NULL))
3997 if (draw_text(view, line->type, entry->name, TRUE))
4005 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
4006 int fd = mkstemp(file);
4009 report("Failed to create temporary file");
4010 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
4011 report("Failed to save blob data to file");
4013 open_editor(FALSE, file);
4019 tree_request(struct view *view, enum request request, struct line *line)
4021 enum open_flags flags;
4024 case REQ_VIEW_BLAME:
4025 if (line->type != LINE_TREE_FILE) {
4026 report("Blame only supported for files");
4030 string_copy(opt_ref, view->vid);
4034 if (line->type != LINE_TREE_FILE) {
4035 report("Edit only supported for files");
4036 } else if (!is_head_commit(view->vid)) {
4039 open_editor(TRUE, opt_file);
4045 /* quit view if at top of tree */
4046 return REQ_VIEW_CLOSE;
4049 line = &view->line[1];
4059 /* Cleanup the stack if the tree view is at a different tree. */
4060 while (!*opt_path && tree_stack)
4061 pop_tree_stack_entry();
4063 switch (line->type) {
4065 /* Depending on whether it is a subdirectory or parent link
4066 * mangle the path buffer. */
4067 if (line == &view->line[1] && *opt_path) {
4068 pop_tree_stack_entry();
4071 const char *basename = tree_path(line);
4073 push_tree_stack_entry(basename, view->lineno);
4076 /* Trees and subtrees share the same ID, so they are not not
4077 * unique like blobs. */
4078 flags = OPEN_RELOAD;
4079 request = REQ_VIEW_TREE;
4082 case LINE_TREE_FILE:
4083 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4084 request = REQ_VIEW_BLOB;
4091 open_view(view, request, flags);
4092 if (request == REQ_VIEW_TREE)
4093 view->lineno = tree_lineno;
4099 tree_select(struct view *view, struct line *line)
4101 struct tree_entry *entry = line->data;
4103 if (line->type == LINE_TREE_FILE) {
4104 string_copy_rev(ref_blob, entry->id);
4105 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4107 } else if (line->type != LINE_TREE_DIR) {
4111 string_copy_rev(view->ref, entry->id);
4114 static const char *tree_argv[SIZEOF_ARG] = {
4115 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4118 static struct view_ops tree_ops = {
4130 blob_read(struct view *view, char *line)
4134 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4138 blob_request(struct view *view, enum request request, struct line *line)
4145 return pager_request(view, request, line);
4149 static const char *blob_argv[SIZEOF_ARG] = {
4150 "git", "cat-file", "blob", "%(blob)", NULL
4153 static struct view_ops blob_ops = {
4167 * Loading the blame view is a two phase job:
4169 * 1. File content is read either using opt_file from the
4170 * filesystem or using git-cat-file.
4171 * 2. Then blame information is incrementally added by
4172 * reading output from git-blame.
4175 static const char *blame_head_argv[] = {
4176 "git", "blame", "--incremental", "--", "%(file)", NULL
4179 static const char *blame_ref_argv[] = {
4180 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4183 static const char *blame_cat_file_argv[] = {
4184 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4187 struct blame_commit {
4188 char id[SIZEOF_REV]; /* SHA1 ID. */
4189 char title[128]; /* First line of the commit message. */
4190 char author[75]; /* Author of the commit. */
4191 struct tm time; /* Date from the author ident. */
4192 char filename[128]; /* Name of file. */
4193 bool has_previous; /* Was a "previous" line detected. */
4197 struct blame_commit *commit;
4198 unsigned long lineno;
4203 blame_open(struct view *view)
4205 if (*opt_ref || !io_open(&view->io, opt_file)) {
4206 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4210 setup_update(view, opt_file);
4211 string_format(view->ref, "%s ...", opt_file);
4216 static struct blame_commit *
4217 get_blame_commit(struct view *view, const char *id)
4221 for (i = 0; i < view->lines; i++) {
4222 struct blame *blame = view->line[i].data;
4227 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4228 return blame->commit;
4232 struct blame_commit *commit = calloc(1, sizeof(*commit));
4235 string_ncopy(commit->id, id, SIZEOF_REV);
4241 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4243 const char *pos = *posref;
4246 pos = strchr(pos + 1, ' ');
4247 if (!pos || !isdigit(pos[1]))
4249 *number = atoi(pos + 1);
4250 if (*number < min || *number > max)
4257 static struct blame_commit *
4258 parse_blame_commit(struct view *view, const char *text, int *blamed)
4260 struct blame_commit *commit;
4261 struct blame *blame;
4262 const char *pos = text + SIZEOF_REV - 2;
4263 size_t orig_lineno = 0;
4267 if (strlen(text) <= SIZEOF_REV || pos[1] != ' ')
4270 if (!parse_number(&pos, &orig_lineno, 1, 9999999) ||
4271 !parse_number(&pos, &lineno, 1, view->lines) ||
4272 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4275 commit = get_blame_commit(view, text);
4281 struct line *line = &view->line[lineno + group - 1];
4284 blame->commit = commit;
4285 blame->lineno = orig_lineno + group - 1;
4293 blame_read_file(struct view *view, const char *line, bool *read_file)
4296 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4299 if (view->lines == 0 && !view->parent)
4300 die("No blame exist for %s", view->vid);
4302 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4303 report("Failed to load blame data");
4307 done_io(view->pipe);
4313 size_t linelen = strlen(line);
4314 struct blame *blame = malloc(sizeof(*blame) + linelen);
4319 blame->commit = NULL;
4320 strncpy(blame->text, line, linelen);
4321 blame->text[linelen] = 0;
4322 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4327 match_blame_header(const char *name, char **line)
4329 size_t namelen = strlen(name);
4330 bool matched = !strncmp(name, *line, namelen);
4339 blame_read(struct view *view, char *line)
4341 static struct blame_commit *commit = NULL;
4342 static int blamed = 0;
4343 static time_t author_time;
4344 static bool read_file = TRUE;
4347 return blame_read_file(view, line, &read_file);
4354 string_format(view->ref, "%s", view->vid);
4355 if (view_is_displayed(view)) {
4356 update_view_title(view);
4357 redraw_view_from(view, 0);
4363 commit = parse_blame_commit(view, line, &blamed);
4364 string_format(view->ref, "%s %2d%%", view->vid,
4365 view->lines ? blamed * 100 / view->lines : 0);
4367 } else if (match_blame_header("author ", &line)) {
4368 string_ncopy(commit->author, line, strlen(line));
4370 } else if (match_blame_header("author-time ", &line)) {
4371 author_time = (time_t) atol(line);
4373 } else if (match_blame_header("author-tz ", &line)) {
4374 parse_timezone(&author_time, line);
4375 gmtime_r(&author_time, &commit->time);
4377 } else if (match_blame_header("summary ", &line)) {
4378 string_ncopy(commit->title, line, strlen(line));
4380 } else if (match_blame_header("previous ", &line)) {
4381 commit->has_previous = TRUE;
4383 } else if (match_blame_header("filename ", &line)) {
4384 string_ncopy(commit->filename, line, strlen(line));
4392 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4394 struct blame *blame = line->data;
4395 struct tm *time = NULL;
4396 const char *id = NULL, *author = NULL;
4397 char text[SIZEOF_STR];
4399 if (blame->commit && *blame->commit->filename) {
4400 id = blame->commit->id;
4401 author = blame->commit->author;
4402 time = &blame->commit->time;
4405 if (opt_date && draw_date(view, time))
4408 if (opt_author && draw_author(view, author))
4411 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4414 if (draw_lineno(view, lineno))
4417 string_expand(text, sizeof(text), blame->text, opt_tab_size);
4418 draw_text(view, LINE_DEFAULT, text, TRUE);
4423 check_blame_commit(struct blame *blame, bool check_null_id)
4426 report("Commit data not loaded yet");
4427 else if (check_null_id && !strcmp(blame->commit->id, NULL_ID))
4428 report("No commit exist for the selected line");
4435 setup_blame_parent_line(struct view *view, struct blame *blame)
4437 const char *diff_tree_argv[] = {
4438 "git", "diff-tree", "-U0", blame->commit->id,
4439 "--", blame->commit->filename, NULL
4442 int parent_lineno = -1;
4443 int blamed_lineno = -1;
4446 if (!run_io(&io, diff_tree_argv, NULL, IO_RD))
4449 while ((line = io_get(&io, '\n', TRUE))) {
4451 char *pos = strchr(line, '+');
4453 parent_lineno = atoi(line + 4);
4455 blamed_lineno = atoi(pos + 1);
4457 } else if (*line == '+' && parent_lineno != -1) {
4458 if (blame->lineno == blamed_lineno - 1 &&
4459 !strcmp(blame->text, line + 1)) {
4460 view->lineno = parent_lineno ? parent_lineno - 1 : 0;
4471 blame_request(struct view *view, enum request request, struct line *line)
4473 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4474 struct blame *blame = line->data;
4477 case REQ_VIEW_BLAME:
4478 if (check_blame_commit(blame, TRUE)) {
4479 string_copy(opt_ref, blame->commit->id);
4480 string_copy(opt_file, blame->commit->filename);
4482 view->lineno = blame->lineno;
4483 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4488 if (check_blame_commit(blame, TRUE) &&
4489 select_commit_parent(blame->commit->id, opt_ref,
4490 blame->commit->filename)) {
4491 string_copy(opt_file, blame->commit->filename);
4492 setup_blame_parent_line(view, blame);
4493 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4498 if (!check_blame_commit(blame, FALSE))
4501 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4502 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4505 if (!strcmp(blame->commit->id, NULL_ID)) {
4506 struct view *diff = VIEW(REQ_VIEW_DIFF);
4507 const char *diff_index_argv[] = {
4508 "git", "diff-index", "--root", "--patch-with-stat",
4509 "-C", "-M", "HEAD", "--", view->vid, NULL
4512 if (!blame->commit->has_previous) {
4513 diff_index_argv[1] = "diff";
4514 diff_index_argv[2] = "--no-color";
4515 diff_index_argv[6] = "--";
4516 diff_index_argv[7] = "/dev/null";
4519 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4520 report("Failed to allocate diff command");
4523 flags |= OPEN_PREPARED;
4526 open_view(view, REQ_VIEW_DIFF, flags);
4527 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4528 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4539 blame_grep(struct view *view, struct line *line)
4541 struct blame *blame = line->data;
4542 struct blame_commit *commit = blame->commit;
4545 #define MATCH(text, on) \
4546 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4549 char buf[DATE_COLS + 1];
4551 if (MATCH(commit->title, 1) ||
4552 MATCH(commit->author, opt_author) ||
4553 MATCH(commit->id, opt_date))
4556 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4561 return MATCH(blame->text, 1);
4567 blame_select(struct view *view, struct line *line)
4569 struct blame *blame = line->data;
4570 struct blame_commit *commit = blame->commit;
4575 if (!strcmp(commit->id, NULL_ID))
4576 string_ncopy(ref_commit, "HEAD", 4);
4578 string_copy_rev(ref_commit, commit->id);
4581 static struct view_ops blame_ops = {
4600 char rev[SIZEOF_REV];
4601 char name[SIZEOF_STR];
4605 char rev[SIZEOF_REV];
4606 char name[SIZEOF_STR];
4610 static char status_onbranch[SIZEOF_STR];
4611 static struct status stage_status;
4612 static enum line_type stage_line_type;
4613 static size_t stage_chunks;
4614 static int *stage_chunk;
4616 /* This should work even for the "On branch" line. */
4618 status_has_none(struct view *view, struct line *line)
4620 return line < view->line + view->lines && !line[1].data;
4623 /* Get fields from the diff line:
4624 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4627 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4629 const char *old_mode = buf + 1;
4630 const char *new_mode = buf + 8;
4631 const char *old_rev = buf + 15;
4632 const char *new_rev = buf + 56;
4633 const char *status = buf + 97;
4636 old_mode[-1] != ':' ||
4637 new_mode[-1] != ' ' ||
4638 old_rev[-1] != ' ' ||
4639 new_rev[-1] != ' ' ||
4643 file->status = *status;
4645 string_copy_rev(file->old.rev, old_rev);
4646 string_copy_rev(file->new.rev, new_rev);
4648 file->old.mode = strtoul(old_mode, NULL, 8);
4649 file->new.mode = strtoul(new_mode, NULL, 8);
4651 file->old.name[0] = file->new.name[0] = 0;
4657 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4659 struct status *unmerged = NULL;
4663 if (!run_io(&io, argv, NULL, IO_RD))
4666 add_line_data(view, NULL, type);
4668 while ((buf = io_get(&io, 0, TRUE))) {
4669 struct status *file = unmerged;
4672 file = calloc(1, sizeof(*file));
4673 if (!file || !add_line_data(view, file, type))
4677 /* Parse diff info part. */
4679 file->status = status;
4681 string_copy(file->old.rev, NULL_ID);
4683 } else if (!file->status || file == unmerged) {
4684 if (!status_get_diff(file, buf, strlen(buf)))
4687 buf = io_get(&io, 0, TRUE);
4691 /* Collapse all modified entries that follow an
4692 * associated unmerged entry. */
4693 if (unmerged == file) {
4694 unmerged->status = 'U';
4696 } else if (file->status == 'U') {
4701 /* Grab the old name for rename/copy. */
4702 if (!*file->old.name &&
4703 (file->status == 'R' || file->status == 'C')) {
4704 string_ncopy(file->old.name, buf, strlen(buf));
4706 buf = io_get(&io, 0, TRUE);
4711 /* git-ls-files just delivers a NUL separated list of
4712 * file names similar to the second half of the
4713 * git-diff-* output. */
4714 string_ncopy(file->new.name, buf, strlen(buf));
4715 if (!*file->old.name)
4716 string_copy(file->old.name, file->new.name);
4720 if (io_error(&io)) {
4726 if (!view->line[view->lines - 1].data)
4727 add_line_data(view, NULL, LINE_STAT_NONE);
4733 /* Don't show unmerged entries in the staged section. */
4734 static const char *status_diff_index_argv[] = {
4735 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4736 "--cached", "-M", "HEAD", NULL
4739 static const char *status_diff_files_argv[] = {
4740 "git", "diff-files", "-z", NULL
4743 static const char *status_list_other_argv[] = {
4744 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4747 static const char *status_list_no_head_argv[] = {
4748 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4751 static const char *update_index_argv[] = {
4752 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4755 /* Restore the previous line number to stay in the context or select a
4756 * line with something that can be updated. */
4758 status_restore(struct view *view)
4760 if (view->p_lineno >= view->lines)
4761 view->p_lineno = view->lines - 1;
4762 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4764 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4767 /* If the above fails, always skip the "On branch" line. */
4768 if (view->p_lineno < view->lines)
4769 view->lineno = view->p_lineno;
4773 if (view->lineno < view->offset)
4774 view->offset = view->lineno;
4775 else if (view->offset + view->height <= view->lineno)
4776 view->offset = view->lineno - view->height + 1;
4778 view->p_restore = FALSE;
4782 status_update_onbranch(void)
4784 static const char *paths[][2] = {
4785 { "rebase-apply/rebasing", "Rebasing" },
4786 { "rebase-apply/applying", "Applying mailbox" },
4787 { "rebase-apply/", "Rebasing mailbox" },
4788 { "rebase-merge/interactive", "Interactive rebase" },
4789 { "rebase-merge/", "Rebase merge" },
4790 { "MERGE_HEAD", "Merging" },
4791 { "BISECT_LOG", "Bisecting" },
4792 { "HEAD", "On branch" },
4794 char buf[SIZEOF_STR];
4798 if (is_initial_commit()) {
4799 string_copy(status_onbranch, "Initial commit");
4803 for (i = 0; i < ARRAY_SIZE(paths); i++) {
4804 char *head = opt_head;
4806 if (!string_format(buf, "%s/%s", opt_git_dir, paths[i][0]) ||
4807 lstat(buf, &stat) < 0)
4813 if (string_format(buf, "%s/rebase-merge/head-name", opt_git_dir) &&
4814 io_open(&io, buf) &&
4815 io_read_buf(&io, buf, sizeof(buf))) {
4816 head = chomp_string(buf);
4817 if (!prefixcmp(head, "refs/heads/"))
4818 head += STRING_SIZE("refs/heads/");
4822 if (!string_format(status_onbranch, "%s %s", paths[i][1], head))
4823 string_copy(status_onbranch, opt_head);
4827 string_copy(status_onbranch, "Not currently on any branch");
4830 /* First parse staged info using git-diff-index(1), then parse unstaged
4831 * info using git-diff-files(1), and finally untracked files using
4832 * git-ls-files(1). */
4834 status_open(struct view *view)
4838 add_line_data(view, NULL, LINE_STAT_HEAD);
4839 status_update_onbranch();
4841 run_io_bg(update_index_argv);
4843 if (is_initial_commit()) {
4844 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4846 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4850 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4851 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4854 /* Restore the exact position or use the specialized restore
4856 if (!view->p_restore)
4857 status_restore(view);
4862 status_draw(struct view *view, struct line *line, unsigned int lineno)
4864 struct status *status = line->data;
4865 enum line_type type;
4869 switch (line->type) {
4870 case LINE_STAT_STAGED:
4871 type = LINE_STAT_SECTION;
4872 text = "Changes to be committed:";
4875 case LINE_STAT_UNSTAGED:
4876 type = LINE_STAT_SECTION;
4877 text = "Changed but not updated:";
4880 case LINE_STAT_UNTRACKED:
4881 type = LINE_STAT_SECTION;
4882 text = "Untracked files:";
4885 case LINE_STAT_NONE:
4886 type = LINE_DEFAULT;
4887 text = " (no files)";
4890 case LINE_STAT_HEAD:
4891 type = LINE_STAT_HEAD;
4892 text = status_onbranch;
4899 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4901 buf[0] = status->status;
4902 if (draw_text(view, line->type, buf, TRUE))
4904 type = LINE_DEFAULT;
4905 text = status->new.name;
4908 draw_text(view, type, text, TRUE);
4913 status_load_error(struct view *view, struct view *stage, const char *path)
4915 if (displayed_views() == 2 || display[current_view] != view)
4916 maximize_view(view);
4917 report("Failed to load '%s': %s", path, io_strerror(&stage->io));
4922 status_enter(struct view *view, struct line *line)
4924 struct status *status = line->data;
4925 const char *oldpath = status ? status->old.name : NULL;
4926 /* Diffs for unmerged entries are empty when passing the new
4927 * path, so leave it empty. */
4928 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4930 enum open_flags split;
4931 struct view *stage = VIEW(REQ_VIEW_STAGE);
4933 if (line->type == LINE_STAT_NONE ||
4934 (!status && line[1].type == LINE_STAT_NONE)) {
4935 report("No file to diff");
4939 switch (line->type) {
4940 case LINE_STAT_STAGED:
4941 if (is_initial_commit()) {
4942 const char *no_head_diff_argv[] = {
4943 "git", "diff", "--no-color", "--patch-with-stat",
4944 "--", "/dev/null", newpath, NULL
4947 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4948 return status_load_error(view, stage, newpath);
4950 const char *index_show_argv[] = {
4951 "git", "diff-index", "--root", "--patch-with-stat",
4952 "-C", "-M", "--cached", "HEAD", "--",
4953 oldpath, newpath, NULL
4956 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4957 return status_load_error(view, stage, newpath);
4961 info = "Staged changes to %s";
4963 info = "Staged changes";
4966 case LINE_STAT_UNSTAGED:
4968 const char *files_show_argv[] = {
4969 "git", "diff-files", "--root", "--patch-with-stat",
4970 "-C", "-M", "--", oldpath, newpath, NULL
4973 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4974 return status_load_error(view, stage, newpath);
4976 info = "Unstaged changes to %s";
4978 info = "Unstaged changes";
4981 case LINE_STAT_UNTRACKED:
4983 report("No file to show");
4987 if (!suffixcmp(status->new.name, -1, "/")) {
4988 report("Cannot display a directory");
4992 if (!prepare_update_file(stage, newpath))
4993 return status_load_error(view, stage, newpath);
4994 info = "Untracked file %s";
4997 case LINE_STAT_HEAD:
5001 die("line type %d not handled in switch", line->type);
5004 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
5005 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
5006 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
5008 stage_status = *status;
5010 memset(&stage_status, 0, sizeof(stage_status));
5013 stage_line_type = line->type;
5015 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
5022 status_exists(struct status *status, enum line_type type)
5024 struct view *view = VIEW(REQ_VIEW_STATUS);
5025 unsigned long lineno;
5027 for (lineno = 0; lineno < view->lines; lineno++) {
5028 struct line *line = &view->line[lineno];
5029 struct status *pos = line->data;
5031 if (line->type != type)
5033 if (!pos && (!status || !status->status) && line[1].data) {
5034 select_view_line(view, lineno);
5037 if (pos && !strcmp(status->new.name, pos->new.name)) {
5038 select_view_line(view, lineno);
5048 status_update_prepare(struct io *io, enum line_type type)
5050 const char *staged_argv[] = {
5051 "git", "update-index", "-z", "--index-info", NULL
5053 const char *others_argv[] = {
5054 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
5058 case LINE_STAT_STAGED:
5059 return run_io(io, staged_argv, opt_cdup, IO_WR);
5061 case LINE_STAT_UNSTAGED:
5062 return run_io(io, others_argv, opt_cdup, IO_WR);
5064 case LINE_STAT_UNTRACKED:
5065 return run_io(io, others_argv, NULL, IO_WR);
5068 die("line type %d not handled in switch", type);
5074 status_update_write(struct io *io, struct status *status, enum line_type type)
5076 char buf[SIZEOF_STR];
5080 case LINE_STAT_STAGED:
5081 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
5084 status->old.name, 0))
5088 case LINE_STAT_UNSTAGED:
5089 case LINE_STAT_UNTRACKED:
5090 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
5095 die("line type %d not handled in switch", type);
5098 return io_write(io, buf, bufsize);
5102 status_update_file(struct status *status, enum line_type type)
5107 if (!status_update_prepare(&io, type))
5110 result = status_update_write(&io, status, type);
5111 return done_io(&io) && result;
5115 status_update_files(struct view *view, struct line *line)
5117 char buf[sizeof(view->ref)];
5120 struct line *pos = view->line + view->lines;
5124 if (!status_update_prepare(&io, line->type))
5127 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5130 string_copy(buf, view->ref);
5131 for (file = 0, done = 5; result && file < files; line++, file++) {
5132 int almost_done = file * 100 / files;
5134 if (almost_done > done) {
5136 string_format(view->ref, "updating file %u of %u (%d%% done)",
5138 update_view_title(view);
5141 result = status_update_write(&io, line->data, line->type);
5143 string_copy(view->ref, buf);
5145 return done_io(&io) && result;
5149 status_update(struct view *view)
5151 struct line *line = &view->line[view->lineno];
5153 assert(view->lines);
5156 /* This should work even for the "On branch" line. */
5157 if (line < view->line + view->lines && !line[1].data) {
5158 report("Nothing to update");
5162 if (!status_update_files(view, line + 1)) {
5163 report("Failed to update file status");
5167 } else if (!status_update_file(line->data, line->type)) {
5168 report("Failed to update file status");
5176 status_revert(struct status *status, enum line_type type, bool has_none)
5178 if (!status || type != LINE_STAT_UNSTAGED) {
5179 if (type == LINE_STAT_STAGED) {
5180 report("Cannot revert changes to staged files");
5181 } else if (type == LINE_STAT_UNTRACKED) {
5182 report("Cannot revert changes to untracked files");
5183 } else if (has_none) {
5184 report("Nothing to revert");
5186 report("Cannot revert changes to multiple files");
5191 char mode[10] = "100644";
5192 const char *reset_argv[] = {
5193 "git", "update-index", "--cacheinfo", mode,
5194 status->old.rev, status->old.name, NULL
5196 const char *checkout_argv[] = {
5197 "git", "checkout", "--", status->old.name, NULL
5200 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5202 string_format(mode, "%o", status->old.mode);
5203 return (status->status != 'U' || run_io_fg(reset_argv, opt_cdup)) &&
5204 run_io_fg(checkout_argv, opt_cdup);
5209 status_request(struct view *view, enum request request, struct line *line)
5211 struct status *status = line->data;
5214 case REQ_STATUS_UPDATE:
5215 if (!status_update(view))
5219 case REQ_STATUS_REVERT:
5220 if (!status_revert(status, line->type, status_has_none(view, line)))
5224 case REQ_STATUS_MERGE:
5225 if (!status || status->status != 'U') {
5226 report("Merging only possible for files with unmerged status ('U').");
5229 open_mergetool(status->new.name);
5235 if (status->status == 'D') {
5236 report("File has been deleted.");
5240 open_editor(status->status != '?', status->new.name);
5243 case REQ_VIEW_BLAME:
5245 string_copy(opt_file, status->new.name);
5251 /* After returning the status view has been split to
5252 * show the stage view. No further reloading is
5254 return status_enter(view, line);
5257 /* Simply reload the view. */
5264 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5270 status_select(struct view *view, struct line *line)
5272 struct status *status = line->data;
5273 char file[SIZEOF_STR] = "all files";
5277 if (status && !string_format(file, "'%s'", status->new.name))
5280 if (!status && line[1].type == LINE_STAT_NONE)
5283 switch (line->type) {
5284 case LINE_STAT_STAGED:
5285 text = "Press %s to unstage %s for commit";
5288 case LINE_STAT_UNSTAGED:
5289 text = "Press %s to stage %s for commit";
5292 case LINE_STAT_UNTRACKED:
5293 text = "Press %s to stage %s for addition";
5296 case LINE_STAT_HEAD:
5297 case LINE_STAT_NONE:
5298 text = "Nothing to update";
5302 die("line type %d not handled in switch", line->type);
5305 if (status && status->status == 'U') {
5306 text = "Press %s to resolve conflict in %s";
5307 key = get_key(REQ_STATUS_MERGE);
5310 key = get_key(REQ_STATUS_UPDATE);
5313 string_format(view->ref, text, key, file);
5317 status_grep(struct view *view, struct line *line)
5319 struct status *status = line->data;
5320 enum { S_STATUS, S_NAME, S_END } state;
5327 for (state = S_STATUS; state < S_END; state++) {
5331 case S_NAME: text = status->new.name; break;
5333 buf[0] = status->status;
5341 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5348 static struct view_ops status_ops = {
5361 stage_diff_write(struct io *io, struct line *line, struct line *end)
5363 while (line < end) {
5364 if (!io_write(io, line->data, strlen(line->data)) ||
5365 !io_write(io, "\n", 1))
5368 if (line->type == LINE_DIFF_CHUNK ||
5369 line->type == LINE_DIFF_HEADER)
5376 static struct line *
5377 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5379 for (; view->line < line; line--)
5380 if (line->type == type)
5387 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5389 const char *apply_argv[SIZEOF_ARG] = {
5390 "git", "apply", "--whitespace=nowarn", NULL
5392 struct line *diff_hdr;
5396 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5401 apply_argv[argc++] = "--cached";
5402 if (revert || stage_line_type == LINE_STAT_STAGED)
5403 apply_argv[argc++] = "-R";
5404 apply_argv[argc++] = "-";
5405 apply_argv[argc++] = NULL;
5406 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5409 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5410 !stage_diff_write(&io, chunk, view->line + view->lines))
5414 run_io_bg(update_index_argv);
5416 return chunk ? TRUE : FALSE;
5420 stage_update(struct view *view, struct line *line)
5422 struct line *chunk = NULL;
5424 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5425 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5428 if (!stage_apply_chunk(view, chunk, FALSE)) {
5429 report("Failed to apply chunk");
5433 } else if (!stage_status.status) {
5434 view = VIEW(REQ_VIEW_STATUS);
5436 for (line = view->line; line < view->line + view->lines; line++)
5437 if (line->type == stage_line_type)
5440 if (!status_update_files(view, line + 1)) {
5441 report("Failed to update files");
5445 } else if (!status_update_file(&stage_status, stage_line_type)) {
5446 report("Failed to update file");
5454 stage_revert(struct view *view, struct line *line)
5456 struct line *chunk = NULL;
5458 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5459 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5462 if (!prompt_yesno("Are you sure you want to revert changes?"))
5465 if (!stage_apply_chunk(view, chunk, TRUE)) {
5466 report("Failed to revert chunk");
5472 return status_revert(stage_status.status ? &stage_status : NULL,
5473 stage_line_type, FALSE);
5479 stage_next(struct view *view, struct line *line)
5483 if (!stage_chunks) {
5484 static size_t alloc = 0;
5487 for (line = view->line; line < view->line + view->lines; line++) {
5488 if (line->type != LINE_DIFF_CHUNK)
5491 tmp = realloc_items(stage_chunk, &alloc,
5492 stage_chunks, sizeof(*tmp));
5494 report("Allocation failure");
5499 stage_chunk[stage_chunks++] = line - view->line;
5503 for (i = 0; i < stage_chunks; i++) {
5504 if (stage_chunk[i] > view->lineno) {
5505 do_scroll_view(view, stage_chunk[i] - view->lineno);
5506 report("Chunk %d of %d", i + 1, stage_chunks);
5511 report("No next chunk found");
5515 stage_request(struct view *view, enum request request, struct line *line)
5518 case REQ_STATUS_UPDATE:
5519 if (!stage_update(view, line))
5523 case REQ_STATUS_REVERT:
5524 if (!stage_revert(view, line))
5528 case REQ_STAGE_NEXT:
5529 if (stage_line_type == LINE_STAT_UNTRACKED) {
5530 report("File is untracked; press %s to add",
5531 get_key(REQ_STATUS_UPDATE));
5534 stage_next(view, line);
5538 if (!stage_status.new.name[0])
5540 if (stage_status.status == 'D') {
5541 report("File has been deleted.");
5545 open_editor(stage_status.status != '?', stage_status.new.name);
5549 /* Reload everything ... */
5552 case REQ_VIEW_BLAME:
5553 if (stage_status.new.name[0]) {
5554 string_copy(opt_file, stage_status.new.name);
5560 return pager_request(view, request, line);
5566 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5567 open_view(view, REQ_VIEW_STATUS, OPEN_REFRESH);
5569 /* Check whether the staged entry still exists, and close the
5570 * stage view if it doesn't. */
5571 if (!status_exists(&stage_status, stage_line_type)) {
5572 status_restore(VIEW(REQ_VIEW_STATUS));
5573 return REQ_VIEW_CLOSE;
5576 if (stage_line_type == LINE_STAT_UNTRACKED) {
5577 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5578 report("Cannot display a directory");
5582 if (!prepare_update_file(view, stage_status.new.name)) {
5583 report("Failed to open file: %s", strerror(errno));
5587 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5592 static struct view_ops stage_ops = {
5609 char id[SIZEOF_REV]; /* SHA1 ID. */
5610 char title[128]; /* First line of the commit message. */
5611 char author[75]; /* Author of the commit. */
5612 struct tm time; /* Date from the author ident. */
5613 struct ref **refs; /* Repository references. */
5614 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5615 size_t graph_size; /* The width of the graph array. */
5616 bool has_parents; /* Rewritten --parents seen. */
5619 /* Size of rev graph with no "padding" columns */
5620 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5623 struct rev_graph *prev, *next, *parents;
5624 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5626 struct commit *commit;
5628 unsigned int boundary:1;
5631 /* Parents of the commit being visualized. */
5632 static struct rev_graph graph_parents[4];
5634 /* The current stack of revisions on the graph. */
5635 static struct rev_graph graph_stacks[4] = {
5636 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5637 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5638 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5639 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5643 graph_parent_is_merge(struct rev_graph *graph)
5645 return graph->parents->size > 1;
5649 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5651 struct commit *commit = graph->commit;
5653 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5654 commit->graph[commit->graph_size++] = symbol;
5658 clear_rev_graph(struct rev_graph *graph)
5660 graph->boundary = 0;
5661 graph->size = graph->pos = 0;
5662 graph->commit = NULL;
5663 memset(graph->parents, 0, sizeof(*graph->parents));
5667 done_rev_graph(struct rev_graph *graph)
5669 if (graph_parent_is_merge(graph) &&
5670 graph->pos < graph->size - 1 &&
5671 graph->next->size == graph->size + graph->parents->size - 1) {
5672 size_t i = graph->pos + graph->parents->size - 1;
5674 graph->commit->graph_size = i * 2;
5675 while (i < graph->next->size - 1) {
5676 append_to_rev_graph(graph, ' ');
5677 append_to_rev_graph(graph, '\\');
5682 clear_rev_graph(graph);
5686 push_rev_graph(struct rev_graph *graph, const char *parent)
5690 /* "Collapse" duplicate parents lines.
5692 * FIXME: This needs to also update update the drawn graph but
5693 * for now it just serves as a method for pruning graph lines. */
5694 for (i = 0; i < graph->size; i++)
5695 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5698 if (graph->size < SIZEOF_REVITEMS) {
5699 string_copy_rev(graph->rev[graph->size++], parent);
5704 get_rev_graph_symbol(struct rev_graph *graph)
5708 if (graph->boundary)
5709 symbol = REVGRAPH_BOUND;
5710 else if (graph->parents->size == 0)
5711 symbol = REVGRAPH_INIT;
5712 else if (graph_parent_is_merge(graph))
5713 symbol = REVGRAPH_MERGE;
5714 else if (graph->pos >= graph->size)
5715 symbol = REVGRAPH_BRANCH;
5717 symbol = REVGRAPH_COMMIT;
5723 draw_rev_graph(struct rev_graph *graph)
5726 chtype separator, line;
5728 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5729 static struct rev_filler fillers[] = {
5735 chtype symbol = get_rev_graph_symbol(graph);
5736 struct rev_filler *filler;
5739 if (opt_line_graphics)
5740 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5742 filler = &fillers[DEFAULT];
5744 for (i = 0; i < graph->pos; i++) {
5745 append_to_rev_graph(graph, filler->line);
5746 if (graph_parent_is_merge(graph->prev) &&
5747 graph->prev->pos == i)
5748 filler = &fillers[RSHARP];
5750 append_to_rev_graph(graph, filler->separator);
5753 /* Place the symbol for this revision. */
5754 append_to_rev_graph(graph, symbol);
5756 if (graph->prev->size > graph->size)
5757 filler = &fillers[RDIAG];
5759 filler = &fillers[DEFAULT];
5763 for (; i < graph->size; i++) {
5764 append_to_rev_graph(graph, filler->separator);
5765 append_to_rev_graph(graph, filler->line);
5766 if (graph_parent_is_merge(graph->prev) &&
5767 i < graph->prev->pos + graph->parents->size)
5768 filler = &fillers[RSHARP];
5769 if (graph->prev->size > graph->size)
5770 filler = &fillers[LDIAG];
5773 if (graph->prev->size > graph->size) {
5774 append_to_rev_graph(graph, filler->separator);
5775 if (filler->line != ' ')
5776 append_to_rev_graph(graph, filler->line);
5780 /* Prepare the next rev graph */
5782 prepare_rev_graph(struct rev_graph *graph)
5786 /* First, traverse all lines of revisions up to the active one. */
5787 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5788 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5791 push_rev_graph(graph->next, graph->rev[graph->pos]);
5794 /* Interleave the new revision parent(s). */
5795 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5796 push_rev_graph(graph->next, graph->parents->rev[i]);
5798 /* Lastly, put any remaining revisions. */
5799 for (i = graph->pos + 1; i < graph->size; i++)
5800 push_rev_graph(graph->next, graph->rev[i]);
5804 update_rev_graph(struct view *view, struct rev_graph *graph)
5806 /* If this is the finalizing update ... */
5808 prepare_rev_graph(graph);
5810 /* Graph visualization needs a one rev look-ahead,
5811 * so the first update doesn't visualize anything. */
5812 if (!graph->prev->commit)
5815 if (view->lines > 2)
5816 view->line[view->lines - 3].dirty = 1;
5817 if (view->lines > 1)
5818 view->line[view->lines - 2].dirty = 1;
5819 draw_rev_graph(graph->prev);
5820 done_rev_graph(graph->prev->prev);
5828 static const char *main_argv[SIZEOF_ARG] = {
5829 "git", "log", "--no-color", "--pretty=raw", "--parents",
5830 "--topo-order", "%(head)", NULL
5834 main_draw(struct view *view, struct line *line, unsigned int lineno)
5836 struct commit *commit = line->data;
5838 if (!*commit->author)
5841 if (opt_date && draw_date(view, &commit->time))
5844 if (opt_author && draw_author(view, commit->author))
5847 if (opt_rev_graph && commit->graph_size &&
5848 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5851 if (opt_show_refs && commit->refs) {
5855 enum line_type type;
5857 if (commit->refs[i]->head)
5858 type = LINE_MAIN_HEAD;
5859 else if (commit->refs[i]->ltag)
5860 type = LINE_MAIN_LOCAL_TAG;
5861 else if (commit->refs[i]->tag)
5862 type = LINE_MAIN_TAG;
5863 else if (commit->refs[i]->tracked)
5864 type = LINE_MAIN_TRACKED;
5865 else if (commit->refs[i]->remote)
5866 type = LINE_MAIN_REMOTE;
5868 type = LINE_MAIN_REF;
5870 if (draw_text(view, type, "[", TRUE) ||
5871 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5872 draw_text(view, type, "]", TRUE))
5875 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5877 } while (commit->refs[i++]->next);
5880 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5884 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5886 main_read(struct view *view, char *line)
5888 static struct rev_graph *graph = graph_stacks;
5889 enum line_type type;
5890 struct commit *commit;
5895 if (!view->lines && !view->parent)
5896 die("No revisions match the given arguments.");
5897 if (view->lines > 0) {
5898 commit = view->line[view->lines - 1].data;
5899 view->line[view->lines - 1].dirty = 1;
5900 if (!*commit->author) {
5903 graph->commit = NULL;
5906 update_rev_graph(view, graph);
5908 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5909 clear_rev_graph(&graph_stacks[i]);
5913 type = get_line_type(line);
5914 if (type == LINE_COMMIT) {
5915 commit = calloc(1, sizeof(struct commit));
5919 line += STRING_SIZE("commit ");
5921 graph->boundary = 1;
5925 string_copy_rev(commit->id, line);
5926 commit->refs = get_refs(commit->id);
5927 graph->commit = commit;
5928 add_line_data(view, commit, LINE_MAIN_COMMIT);
5930 while ((line = strchr(line, ' '))) {
5932 push_rev_graph(graph->parents, line);
5933 commit->has_parents = TRUE;
5940 commit = view->line[view->lines - 1].data;
5944 if (commit->has_parents)
5946 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5950 parse_author_line(line + STRING_SIZE("author "),
5951 commit->author, sizeof(commit->author),
5953 update_rev_graph(view, graph);
5954 graph = graph->next;
5958 /* Fill in the commit title if it has not already been set. */
5959 if (commit->title[0])
5962 /* Require titles to start with a non-space character at the
5963 * offset used by git log. */
5964 if (strncmp(line, " ", 4))
5967 /* Well, if the title starts with a whitespace character,
5968 * try to be forgiving. Otherwise we end up with no title. */
5969 while (isspace(*line))
5973 /* FIXME: More graceful handling of titles; append "..." to
5974 * shortened titles, etc. */
5976 string_expand(commit->title, sizeof(commit->title), line, 1);
5977 view->line[view->lines - 1].dirty = 1;
5984 main_request(struct view *view, enum request request, struct line *line)
5986 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5990 open_view(view, REQ_VIEW_DIFF, flags);
5994 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
6004 grep_refs(struct ref **refs, regex_t *regex)
6012 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
6014 } while (refs[i++]->next);
6020 main_grep(struct view *view, struct line *line)
6022 struct commit *commit = line->data;
6023 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
6024 char buf[DATE_COLS + 1];
6027 for (state = S_TITLE; state < S_END; state++) {
6031 case S_TITLE: text = commit->title; break;
6035 text = commit->author;
6040 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
6047 if (grep_refs(commit->refs, view->regex) == TRUE)
6054 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
6062 main_select(struct view *view, struct line *line)
6064 struct commit *commit = line->data;
6066 string_copy_rev(view->ref, commit->id);
6067 string_copy_rev(ref_commit, view->ref);
6070 static struct view_ops main_ops = {
6083 * Unicode / UTF-8 handling
6085 * NOTE: Much of the following code for dealing with Unicode is derived from
6086 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
6087 * src/intl/charset.c from the UTF-8 branch commit elinks-0.11.0-g31f2c28.
6091 unicode_width(unsigned long c)
6094 (c <= 0x115f /* Hangul Jamo */
6097 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
6099 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
6100 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
6101 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
6102 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
6103 || (c >= 0xffe0 && c <= 0xffe6)
6104 || (c >= 0x20000 && c <= 0x2fffd)
6105 || (c >= 0x30000 && c <= 0x3fffd)))
6109 return opt_tab_size;
6114 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
6115 * Illegal bytes are set one. */
6116 static const unsigned char utf8_bytes[256] = {
6117 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,
6118 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
6119 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
6120 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
6121 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
6122 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
6123 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,
6124 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,
6127 /* Decode UTF-8 multi-byte representation into a Unicode character. */
6128 static inline unsigned long
6129 utf8_to_unicode(const char *string, size_t length)
6131 unsigned long unicode;
6135 unicode = string[0];
6138 unicode = (string[0] & 0x1f) << 6;
6139 unicode += (string[1] & 0x3f);
6142 unicode = (string[0] & 0x0f) << 12;
6143 unicode += ((string[1] & 0x3f) << 6);
6144 unicode += (string[2] & 0x3f);
6147 unicode = (string[0] & 0x0f) << 18;
6148 unicode += ((string[1] & 0x3f) << 12);
6149 unicode += ((string[2] & 0x3f) << 6);
6150 unicode += (string[3] & 0x3f);
6153 unicode = (string[0] & 0x0f) << 24;
6154 unicode += ((string[1] & 0x3f) << 18);
6155 unicode += ((string[2] & 0x3f) << 12);
6156 unicode += ((string[3] & 0x3f) << 6);
6157 unicode += (string[4] & 0x3f);
6160 unicode = (string[0] & 0x01) << 30;
6161 unicode += ((string[1] & 0x3f) << 24);
6162 unicode += ((string[2] & 0x3f) << 18);
6163 unicode += ((string[3] & 0x3f) << 12);
6164 unicode += ((string[4] & 0x3f) << 6);
6165 unicode += (string[5] & 0x3f);
6168 die("Invalid Unicode length");
6171 /* Invalid characters could return the special 0xfffd value but NUL
6172 * should be just as good. */
6173 return unicode > 0xffff ? 0 : unicode;
6176 /* Calculates how much of string can be shown within the given maximum width
6177 * and sets trimmed parameter to non-zero value if all of string could not be
6178 * shown. If the reserve flag is TRUE, it will reserve at least one
6179 * trailing character, which can be useful when drawing a delimiter.
6181 * Returns the number of bytes to output from string to satisfy max_width. */
6183 utf8_length(const char **start, size_t skip, int *width, size_t max_width, int *trimmed, bool reserve)
6185 const char *string = *start;
6186 const char *end = strchr(string, '\0');
6187 unsigned char last_bytes = 0;
6188 size_t last_ucwidth = 0;
6193 while (string < end) {
6194 int c = *(unsigned char *) string;
6195 unsigned char bytes = utf8_bytes[c];
6197 unsigned long unicode;
6199 if (string + bytes > end)
6202 /* Change representation to figure out whether
6203 * it is a single- or double-width character. */
6205 unicode = utf8_to_unicode(string, bytes);
6206 /* FIXME: Graceful handling of invalid Unicode character. */
6210 ucwidth = unicode_width(unicode);
6212 skip -= ucwidth <= skip ? ucwidth : skip;
6216 if (*width > max_width) {
6219 if (reserve && *width == max_width) {
6220 string -= last_bytes;
6221 *width -= last_ucwidth;
6227 last_bytes = ucwidth ? bytes : 0;
6228 last_ucwidth = ucwidth;
6231 return string - *start;
6239 /* Whether or not the curses interface has been initialized. */
6240 static bool cursed = FALSE;
6242 /* Terminal hacks and workarounds. */
6243 static bool use_scroll_redrawwin;
6244 static bool use_scroll_status_wclear;
6246 /* The status window is used for polling keystrokes. */
6247 static WINDOW *status_win;
6249 /* Reading from the prompt? */
6250 static bool input_mode = FALSE;
6252 static bool status_empty = FALSE;
6254 /* Update status and title window. */
6256 report(const char *msg, ...)
6258 struct view *view = display[current_view];
6264 char buf[SIZEOF_STR];
6267 va_start(args, msg);
6268 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6269 buf[sizeof(buf) - 1] = 0;
6270 buf[sizeof(buf) - 2] = '.';
6271 buf[sizeof(buf) - 3] = '.';
6272 buf[sizeof(buf) - 4] = '.';
6278 if (!status_empty || *msg) {
6281 va_start(args, msg);
6283 wmove(status_win, 0, 0);
6284 if (view->has_scrolled && use_scroll_status_wclear)
6287 vwprintw(status_win, msg, args);
6288 status_empty = FALSE;
6290 status_empty = TRUE;
6292 wclrtoeol(status_win);
6293 wnoutrefresh(status_win);
6298 update_view_title(view);
6301 /* Controls when nodelay should be in effect when polling user input. */
6303 set_nonblocking_input(bool loading)
6305 static unsigned int loading_views;
6307 if ((loading == FALSE && loading_views-- == 1) ||
6308 (loading == TRUE && loading_views++ == 0))
6309 nodelay(status_win, loading);
6318 /* Initialize the curses library */
6319 if (isatty(STDIN_FILENO)) {
6320 cursed = !!initscr();
6323 /* Leave stdin and stdout alone when acting as a pager. */
6324 opt_tty = fopen("/dev/tty", "r+");
6326 die("Failed to open /dev/tty");
6327 cursed = !!newterm(NULL, opt_tty, opt_tty);
6331 die("Failed to initialize curses");
6333 nonl(); /* Disable conversion and detect newlines from input. */
6334 cbreak(); /* Take input chars one at a time, no wait for \n */
6335 noecho(); /* Don't echo input */
6336 leaveok(stdscr, FALSE);
6341 getmaxyx(stdscr, y, x);
6342 status_win = newwin(1, 0, y - 1, 0);
6344 die("Failed to create status window");
6346 /* Enable keyboard mapping */
6347 keypad(status_win, TRUE);
6348 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6350 TABSIZE = opt_tab_size;
6351 if (opt_line_graphics) {
6352 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6355 term = getenv("XTERM_VERSION") ? NULL : getenv("COLORTERM");
6356 if (term && !strcmp(term, "gnome-terminal")) {
6357 /* In the gnome-terminal-emulator, the message from
6358 * scrolling up one line when impossible followed by
6359 * scrolling down one line causes corruption of the
6360 * status line. This is fixed by calling wclear. */
6361 use_scroll_status_wclear = TRUE;
6362 use_scroll_redrawwin = FALSE;
6364 } else if (term && !strcmp(term, "xrvt-xpm")) {
6365 /* No problems with full optimizations in xrvt-(unicode)
6367 use_scroll_status_wclear = use_scroll_redrawwin = FALSE;
6370 /* When scrolling in (u)xterm the last line in the
6371 * scrolling direction will update slowly. */
6372 use_scroll_redrawwin = TRUE;
6373 use_scroll_status_wclear = FALSE;
6378 get_input(int prompt_position)
6381 int i, key, cursor_y, cursor_x;
6383 if (prompt_position)
6387 foreach_view (view, i) {
6389 if (view_is_displayed(view) && view->has_scrolled &&
6390 use_scroll_redrawwin)
6391 redrawwin(view->win);
6392 view->has_scrolled = FALSE;
6395 /* Update the cursor position. */
6396 if (prompt_position) {
6397 getbegyx(status_win, cursor_y, cursor_x);
6398 cursor_x = prompt_position;
6400 view = display[current_view];
6401 getbegyx(view->win, cursor_y, cursor_x);
6402 cursor_x = view->width - 1;
6403 cursor_y += view->lineno - view->offset;
6405 setsyx(cursor_y, cursor_x);
6407 /* Refresh, accept single keystroke of input */
6409 key = wgetch(status_win);
6411 /* wgetch() with nodelay() enabled returns ERR when
6412 * there's no input. */
6415 } else if (key == KEY_RESIZE) {
6418 getmaxyx(stdscr, height, width);
6420 wresize(status_win, 1, width);
6421 mvwin(status_win, height - 1, 0);
6422 wnoutrefresh(status_win);
6424 redraw_display(TRUE);
6434 prompt_input(const char *prompt, input_handler handler, void *data)
6436 enum input_status status = INPUT_OK;
6437 static char buf[SIZEOF_STR];
6442 while (status == INPUT_OK || status == INPUT_SKIP) {
6445 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6446 wclrtoeol(status_win);
6448 key = get_input(pos + 1);
6453 status = pos ? INPUT_STOP : INPUT_CANCEL;
6460 status = INPUT_CANCEL;
6464 status = INPUT_CANCEL;
6468 if (pos >= sizeof(buf)) {
6469 report("Input string too long");
6473 status = handler(data, buf, key);
6474 if (status == INPUT_OK)
6475 buf[pos++] = (char) key;
6479 /* Clear the status window */
6480 status_empty = FALSE;
6483 if (status == INPUT_CANCEL)
6491 static enum input_status
6492 prompt_yesno_handler(void *data, char *buf, int c)
6494 if (c == 'y' || c == 'Y')
6496 if (c == 'n' || c == 'N')
6497 return INPUT_CANCEL;
6502 prompt_yesno(const char *prompt)
6504 char prompt2[SIZEOF_STR];
6506 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6509 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6512 static enum input_status
6513 read_prompt_handler(void *data, char *buf, int c)
6515 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6519 read_prompt(const char *prompt)
6521 return prompt_input(prompt, read_prompt_handler, NULL);
6525 * Repository properties
6528 static struct ref *refs = NULL;
6529 static size_t refs_alloc = 0;
6530 static size_t refs_size = 0;
6532 /* Id <-> ref store */
6533 static struct ref ***id_refs = NULL;
6534 static size_t id_refs_alloc = 0;
6535 static size_t id_refs_size = 0;
6538 compare_refs(const void *ref1_, const void *ref2_)
6540 const struct ref *ref1 = *(const struct ref **)ref1_;
6541 const struct ref *ref2 = *(const struct ref **)ref2_;
6543 if (ref1->tag != ref2->tag)
6544 return ref2->tag - ref1->tag;
6545 if (ref1->ltag != ref2->ltag)
6546 return ref2->ltag - ref2->ltag;
6547 if (ref1->head != ref2->head)
6548 return ref2->head - ref1->head;
6549 if (ref1->tracked != ref2->tracked)
6550 return ref2->tracked - ref1->tracked;
6551 if (ref1->remote != ref2->remote)
6552 return ref2->remote - ref1->remote;
6553 return strcmp(ref1->name, ref2->name);
6556 static struct ref **
6557 get_refs(const char *id)
6559 struct ref ***tmp_id_refs;
6560 struct ref **ref_list = NULL;
6561 size_t ref_list_alloc = 0;
6562 size_t ref_list_size = 0;
6565 for (i = 0; i < id_refs_size; i++)
6566 if (!strcmp(id, id_refs[i][0]->id))
6569 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6574 id_refs = tmp_id_refs;
6576 for (i = 0; i < refs_size; i++) {
6579 if (strcmp(id, refs[i].id))
6582 tmp = realloc_items(ref_list, &ref_list_alloc,
6583 ref_list_size + 1, sizeof(*ref_list));
6591 ref_list[ref_list_size] = &refs[i];
6592 /* XXX: The properties of the commit chains ensures that we can
6593 * safely modify the shared ref. The repo references will
6594 * always be similar for the same id. */
6595 ref_list[ref_list_size]->next = 1;
6601 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6602 ref_list[ref_list_size - 1]->next = 0;
6603 id_refs[id_refs_size++] = ref_list;
6610 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6615 bool remote = FALSE;
6616 bool tracked = FALSE;
6617 bool check_replace = FALSE;
6620 if (!prefixcmp(name, "refs/tags/")) {
6621 if (!suffixcmp(name, namelen, "^{}")) {
6624 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6625 check_replace = TRUE;
6631 namelen -= STRING_SIZE("refs/tags/");
6632 name += STRING_SIZE("refs/tags/");
6634 } else if (!prefixcmp(name, "refs/remotes/")) {
6636 namelen -= STRING_SIZE("refs/remotes/");
6637 name += STRING_SIZE("refs/remotes/");
6638 tracked = !strcmp(opt_remote, name);
6640 } else if (!prefixcmp(name, "refs/heads/")) {
6641 namelen -= STRING_SIZE("refs/heads/");
6642 name += STRING_SIZE("refs/heads/");
6643 head = !strncmp(opt_head, name, namelen);
6645 } else if (!strcmp(name, "HEAD")) {
6646 string_ncopy(opt_head_rev, id, idlen);
6650 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6651 /* it's an annotated tag, replace the previous SHA1 with the
6652 * resolved commit id; relies on the fact git-ls-remote lists
6653 * the commit id of an annotated tag right before the commit id
6655 refs[refs_size - 1].ltag = ltag;
6656 string_copy_rev(refs[refs_size - 1].id, id);
6660 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6664 ref = &refs[refs_size++];
6665 ref->name = malloc(namelen + 1);
6669 strncpy(ref->name, name, namelen);
6670 ref->name[namelen] = 0;
6674 ref->remote = remote;
6675 ref->tracked = tracked;
6676 string_copy_rev(ref->id, id);
6684 static const char *ls_remote_argv[SIZEOF_ARG] = {
6685 "git", "ls-remote", opt_git_dir, NULL
6687 static bool init = FALSE;
6690 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6697 while (refs_size > 0)
6698 free(refs[--refs_size].name);
6699 while (id_refs_size > 0)
6700 free(id_refs[--id_refs_size]);
6702 return run_io_load(ls_remote_argv, "\t", read_ref);
6706 set_remote_branch(const char *name, const char *value, size_t valuelen)
6708 if (!strcmp(name, ".remote")) {
6709 string_ncopy(opt_remote, value, valuelen);
6711 } else if (*opt_remote && !strcmp(name, ".merge")) {
6712 size_t from = strlen(opt_remote);
6714 if (!prefixcmp(value, "refs/heads/"))
6715 value += STRING_SIZE("refs/heads/");
6717 if (!string_format_from(opt_remote, &from, "/%s", value))
6723 set_repo_config_option(char *name, char *value, int (*cmd)(int, const char **))
6725 const char *argv[SIZEOF_ARG] = { name, "=" };
6726 int argc = 1 + (cmd == option_set_command);
6729 if (!argv_from_string(argv, &argc, value))
6730 config_msg = "Too many option arguments";
6732 error = cmd(argc, argv);
6735 warn("Option 'tig.%s': %s", name, config_msg);
6739 set_environment_variable(const char *name, const char *value)
6741 size_t len = strlen(name) + 1 + strlen(value) + 1;
6742 char *env = malloc(len);
6745 string_nformat(env, len, NULL, "%s=%s", name, value) &&
6753 set_work_tree(const char *value)
6755 char cwd[SIZEOF_STR];
6757 if (!getcwd(cwd, sizeof(cwd)))
6758 die("Failed to get cwd path: %s", strerror(errno));
6759 if (chdir(opt_git_dir) < 0)
6760 die("Failed to chdir(%s): %s", strerror(errno));
6761 if (!getcwd(opt_git_dir, sizeof(opt_git_dir)))
6762 die("Failed to get git path: %s", strerror(errno));
6764 die("Failed to chdir(%s): %s", cwd, strerror(errno));
6765 if (chdir(value) < 0)
6766 die("Failed to chdir(%s): %s", value, strerror(errno));
6767 if (!getcwd(cwd, sizeof(cwd)))
6768 die("Failed to get cwd path: %s", strerror(errno));
6769 if (!set_environment_variable("GIT_WORK_TREE", cwd))
6770 die("Failed to set GIT_WORK_TREE to '%s'", cwd);
6771 if (!set_environment_variable("GIT_DIR", opt_git_dir))
6772 die("Failed to set GIT_DIR to '%s'", opt_git_dir);
6773 opt_is_inside_work_tree = TRUE;
6777 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6779 if (!strcmp(name, "i18n.commitencoding"))
6780 string_ncopy(opt_encoding, value, valuelen);
6782 else if (!strcmp(name, "core.editor"))
6783 string_ncopy(opt_editor, value, valuelen);
6785 else if (!strcmp(name, "core.worktree"))
6786 set_work_tree(value);
6788 else if (!prefixcmp(name, "tig.color."))
6789 set_repo_config_option(name + 10, value, option_color_command);
6791 else if (!prefixcmp(name, "tig.bind."))
6792 set_repo_config_option(name + 9, value, option_bind_command);
6794 else if (!prefixcmp(name, "tig."))
6795 set_repo_config_option(name + 4, value, option_set_command);
6797 else if (*opt_head && !prefixcmp(name, "branch.") &&
6798 !strncmp(name + 7, opt_head, strlen(opt_head)))
6799 set_remote_branch(name + 7 + strlen(opt_head), value, valuelen);
6805 load_git_config(void)
6807 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6809 return run_io_load(config_list_argv, "=", read_repo_config_option);
6813 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6815 if (!opt_git_dir[0]) {
6816 string_ncopy(opt_git_dir, name, namelen);
6818 } else if (opt_is_inside_work_tree == -1) {
6819 /* This can be 3 different values depending on the
6820 * version of git being used. If git-rev-parse does not
6821 * understand --is-inside-work-tree it will simply echo
6822 * the option else either "true" or "false" is printed.
6823 * Default to true for the unknown case. */
6824 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6826 } else if (*name == '.') {
6827 string_ncopy(opt_cdup, name, namelen);
6830 string_ncopy(opt_prefix, name, namelen);
6837 load_repo_info(void)
6839 const char *head_argv[] = {
6840 "git", "symbolic-ref", "HEAD", NULL
6842 const char *rev_parse_argv[] = {
6843 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6844 "--show-cdup", "--show-prefix", NULL
6847 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6848 chomp_string(opt_head);
6849 if (!prefixcmp(opt_head, "refs/heads/")) {
6850 char *offset = opt_head + STRING_SIZE("refs/heads/");
6852 memmove(opt_head, offset, strlen(offset) + 1);
6856 return run_io_load(rev_parse_argv, "=", read_repo_info);
6864 static const char usage[] =
6865 "tig " TIG_VERSION " (" __DATE__ ")\n"
6867 "Usage: tig [options] [revs] [--] [paths]\n"
6868 " or: tig show [options] [revs] [--] [paths]\n"
6869 " or: tig blame [rev] path\n"
6871 " or: tig < [git command output]\n"
6874 " -v, --version Show version and exit\n"
6875 " -h, --help Show help message and exit";
6877 static void __NORETURN
6880 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6886 static void __NORETURN
6887 die(const char *err, ...)
6893 va_start(args, err);
6894 fputs("tig: ", stderr);
6895 vfprintf(stderr, err, args);
6896 fputs("\n", stderr);
6903 warn(const char *msg, ...)
6907 va_start(args, msg);
6908 fputs("tig warning: ", stderr);
6909 vfprintf(stderr, msg, args);
6910 fputs("\n", stderr);
6915 parse_options(int argc, const char *argv[])
6917 enum request request = REQ_VIEW_MAIN;
6918 const char *subcommand;
6919 bool seen_dashdash = FALSE;
6920 /* XXX: This is vulnerable to the user overriding options
6921 * required for the main view parser. */
6922 const char *custom_argv[SIZEOF_ARG] = {
6923 "git", "log", "--no-color", "--pretty=raw", "--parents",
6924 "--topo-order", NULL
6928 if (!isatty(STDIN_FILENO)) {
6929 io_open(&VIEW(REQ_VIEW_PAGER)->io, "");
6930 return REQ_VIEW_PAGER;
6936 subcommand = argv[1];
6937 if (!strcmp(subcommand, "status")) {
6939 warn("ignoring arguments after `%s'", subcommand);
6940 return REQ_VIEW_STATUS;
6942 } else if (!strcmp(subcommand, "blame")) {
6943 if (argc <= 2 || argc > 4)
6944 die("invalid number of options to blame\n\n%s", usage);
6948 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
6952 string_ncopy(opt_file, argv[i], strlen(argv[i]));
6953 return REQ_VIEW_BLAME;
6955 } else if (!strcmp(subcommand, "show")) {
6956 request = REQ_VIEW_DIFF;
6963 custom_argv[1] = subcommand;
6967 for (i = 1 + !!subcommand; i < argc; i++) {
6968 const char *opt = argv[i];
6970 if (seen_dashdash || !strcmp(opt, "--")) {
6971 seen_dashdash = TRUE;
6973 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
6974 printf("tig version %s\n", TIG_VERSION);
6977 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
6978 printf("%s\n", usage);
6982 custom_argv[j++] = opt;
6983 if (j >= ARRAY_SIZE(custom_argv))
6984 die("command too long");
6987 if (!prepare_update(VIEW(request), custom_argv, NULL, FORMAT_NONE))
6988 die("Failed to format arguments");
6994 main(int argc, const char *argv[])
6996 enum request request = parse_options(argc, argv);
7000 signal(SIGINT, quit);
7001 signal(SIGPIPE, SIG_IGN);
7003 if (setlocale(LC_ALL, "")) {
7004 char *codeset = nl_langinfo(CODESET);
7006 string_ncopy(opt_codeset, codeset, strlen(codeset));
7009 if (load_repo_info() == ERR)
7010 die("Failed to load repo info.");
7012 if (load_options() == ERR)
7013 die("Failed to load user config.");
7015 if (load_git_config() == ERR)
7016 die("Failed to load repo config.");
7018 /* Require a git repository unless when running in pager mode. */
7019 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
7020 die("Not a git repository");
7022 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
7025 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
7026 opt_iconv = iconv_open(opt_codeset, opt_encoding);
7027 if (opt_iconv == ICONV_NONE)
7028 die("Failed to initialize character set conversion");
7031 if (load_refs() == ERR)
7032 die("Failed to load refs.");
7034 foreach_view (view, i)
7035 argv_from_env(view->ops->argv, view->cmd_env);
7039 if (request != REQ_NONE)
7040 open_view(NULL, request, OPEN_PREPARED);
7041 request = request == REQ_NONE ? REQ_VIEW_MAIN : REQ_NONE;
7043 while (view_driver(display[current_view], request)) {
7044 int key = get_input(0);
7046 view = display[current_view];
7047 request = get_keybinding(view->keymap, key);
7049 /* Some low-level request handling. This keeps access to
7050 * status_win restricted. */
7054 char *cmd = read_prompt(":");
7056 if (cmd && isdigit(*cmd)) {
7057 int lineno = view->lineno + 1;
7059 if (parse_int(&lineno, cmd, 1, view->lines + 1) == OK) {
7060 select_view_line(view, lineno - 1);
7063 report("Unable to parse '%s' as a line number", cmd);
7067 struct view *next = VIEW(REQ_VIEW_PAGER);
7068 const char *argv[SIZEOF_ARG] = { "git" };
7071 /* When running random commands, initially show the
7072 * command in the title. However, it maybe later be
7073 * overwritten if a commit line is selected. */
7074 string_ncopy(next->ref, cmd, strlen(cmd));
7076 if (!argv_from_string(argv, &argc, cmd)) {
7077 report("Too many arguments");
7078 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
7079 report("Failed to format command");
7081 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
7089 case REQ_SEARCH_BACK:
7091 const char *prompt = request == REQ_SEARCH ? "/" : "?";
7092 char *search = read_prompt(prompt);
7095 string_ncopy(opt_search, search, strlen(search));
7096 else if (*opt_search)
7097 request = request == REQ_SEARCH ?