1 /* Copyright (c) 2006-2009 Jonas Fonseca <fonseca@diku.dk>
3 * This program is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU General Public License as
5 * published by the Free Software Foundation; either version 2 of
6 * the License, or (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
19 #define TIG_VERSION "unknown-version"
34 #include <sys/types.h>
37 #include <sys/select.h>
48 /* ncurses(3): Must be defined to have extended wide-character functions. */
49 #define _XOPEN_SOURCE_EXTENDED
51 #ifdef HAVE_NCURSESW_NCURSES_H
52 #include <ncursesw/ncurses.h>
54 #ifdef HAVE_NCURSES_NCURSES_H
55 #include <ncurses/ncurses.h>
62 #define __NORETURN __attribute__((__noreturn__))
67 static void __NORETURN die(const char *err, ...);
68 static void warn(const char *msg, ...);
69 static void report(const char *msg, ...);
70 static void set_nonblocking_input(bool loading);
71 static int load_refs(void);
72 static size_t utf8_length(const char **string, size_t col, int *width, size_t max_width, int *trimmed, bool reserve);
74 #define ABS(x) ((x) >= 0 ? (x) : -(x))
75 #define MIN(x, y) ((x) < (y) ? (x) : (y))
77 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
78 #define STRING_SIZE(x) (sizeof(x) - 1)
80 #define SIZEOF_STR 1024 /* Default string size. */
81 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
82 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL. */
83 #define SIZEOF_ARG 32 /* Default argument array size. */
87 #define REVGRAPH_INIT 'I'
88 #define REVGRAPH_MERGE 'M'
89 #define REVGRAPH_BRANCH '+'
90 #define REVGRAPH_COMMIT '*'
91 #define REVGRAPH_BOUND '^'
93 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
95 /* This color name can be used to refer to the default term colors. */
96 #define COLOR_DEFAULT (-1)
98 #define ICONV_NONE ((iconv_t) -1)
100 #define ICONV_CONST /* nothing */
103 /* The format and size of the date column in the main view. */
104 #define DATE_FORMAT "%Y-%m-%d %H:%M"
105 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
107 #define AUTHOR_COLS 20
110 /* The default interval between line numbers. */
111 #define NUMBER_INTERVAL 5
115 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
117 #define NULL_ID "0000000000000000000000000000000000000000"
119 #define S_ISGITLINK(mode) (((mode) & S_IFMT) == 0160000)
122 #define GIT_CONFIG "config"
125 /* Some ASCII-shorthands fitted into the ncurses namespace. */
127 #define KEY_RETURN '\r'
132 char *name; /* Ref name; tag or head names are shortened. */
133 char id[SIZEOF_REV]; /* Commit SHA1 ID */
134 unsigned int head:1; /* Is it the current HEAD? */
135 unsigned int tag:1; /* Is it a tag? */
136 unsigned int ltag:1; /* If so, is the tag local? */
137 unsigned int remote:1; /* Is it a remote ref? */
138 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
139 unsigned int next:1; /* For ref lists: are there more refs? */
142 static struct ref **get_refs(const char *id);
145 FORMAT_ALL, /* Perform replacement in all arguments. */
146 FORMAT_DASH, /* Perform replacement up until "--". */
147 FORMAT_NONE /* No replacement should be performed. */
150 static bool format_argv(const char *dst[], const char *src[], enum format_flags flags);
159 typedef enum input_status (*input_handler)(void *data, char *buf, int c);
161 static char *prompt_input(const char *prompt, input_handler handler, void *data);
162 static bool prompt_yesno(const char *prompt);
169 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
171 if (srclen > dstlen - 1)
174 strncpy(dst, src, srclen);
178 /* Shorthands for safely copying into a fixed buffer. */
180 #define string_copy(dst, src) \
181 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
183 #define string_ncopy(dst, src, srclen) \
184 string_ncopy_do(dst, sizeof(dst), src, srclen)
186 #define string_copy_rev(dst, src) \
187 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
189 #define string_add(dst, from, src) \
190 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
193 string_expand(char *dst, size_t dstlen, const char *src, int tabsize)
197 for (size = pos = 0; size < dstlen - 1 && src[pos]; pos++) {
198 if (src[pos] == '\t') {
199 size_t expanded = tabsize - (size % tabsize);
201 if (expanded + size >= dstlen - 1)
202 expanded = dstlen - size - 1;
203 memcpy(dst + size, " ", expanded);
206 dst[size++] = src[pos];
214 chomp_string(char *name)
218 while (isspace(*name))
221 namelen = strlen(name) - 1;
222 while (namelen > 0 && isspace(name[namelen]))
229 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
232 size_t pos = bufpos ? *bufpos : 0;
235 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
241 return pos >= bufsize ? FALSE : TRUE;
244 #define string_format(buf, fmt, args...) \
245 string_nformat(buf, sizeof(buf), NULL, fmt, args)
247 #define string_format_from(buf, from, fmt, args...) \
248 string_nformat(buf, sizeof(buf), from, fmt, args)
251 string_enum_compare(const char *str1, const char *str2, int len)
255 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
257 /* Diff-Header == DIFF_HEADER */
258 for (i = 0; i < len; i++) {
259 if (toupper(str1[i]) == toupper(str2[i]))
262 if (string_enum_sep(str1[i]) &&
263 string_enum_sep(str2[i]))
266 return str1[i] - str2[i];
278 #define ENUM_MAP(name, value) { name, STRING_SIZE(name), value }
281 map_enum_do(const struct enum_map *map, size_t map_size, int *value, const char *name)
283 size_t namelen = strlen(name);
286 for (i = 0; i < map_size; i++)
287 if (namelen == map[i].namelen &&
288 !string_enum_compare(name, map[i].name, namelen)) {
289 *value = map[i].value;
296 #define map_enum(attr, map, name) \
297 map_enum_do(map, ARRAY_SIZE(map), attr, name)
299 #define prefixcmp(str1, str2) \
300 strncmp(str1, str2, STRING_SIZE(str2))
303 suffixcmp(const char *str, int slen, const char *suffix)
305 size_t len = slen >= 0 ? slen : strlen(str);
306 size_t suffixlen = strlen(suffix);
308 return suffixlen < len ? strcmp(str + len - suffixlen, suffix) : -1;
313 argv_from_string(const char *argv[SIZEOF_ARG], int *argc, char *cmd)
317 while (*cmd && *argc < SIZEOF_ARG && (valuelen = strcspn(cmd, " \t"))) {
318 bool advance = cmd[valuelen] != 0;
321 argv[(*argc)++] = chomp_string(cmd);
322 cmd = chomp_string(cmd + valuelen + advance);
325 if (*argc < SIZEOF_ARG)
327 return *argc < SIZEOF_ARG;
331 argv_from_env(const char **argv, const char *name)
333 char *env = argv ? getenv(name) : NULL;
338 if (env && !argv_from_string(argv, &argc, env))
339 die("Too many arguments in the `%s` environment variable", name);
344 * Executing external commands.
348 IO_FD, /* File descriptor based IO. */
349 IO_BG, /* Execute command in the background. */
350 IO_FG, /* Execute command with same std{in,out,err}. */
351 IO_RD, /* Read only fork+exec IO. */
352 IO_WR, /* Write only fork+exec IO. */
353 IO_AP, /* Append fork+exec output to file. */
357 enum io_type type; /* The requested type of pipe. */
358 const char *dir; /* Directory from which to execute. */
359 pid_t pid; /* Pipe for reading or writing. */
360 int pipe; /* Pipe end for reading or writing. */
361 int error; /* Error status. */
362 const char *argv[SIZEOF_ARG]; /* Shell command arguments. */
363 char *buf; /* Read buffer. */
364 size_t bufalloc; /* Allocated buffer size. */
365 size_t bufsize; /* Buffer content size. */
366 char *bufpos; /* Current buffer position. */
367 unsigned int eof:1; /* Has end of file been reached. */
371 reset_io(struct io *io)
375 io->buf = io->bufpos = NULL;
376 io->bufalloc = io->bufsize = 0;
382 init_io(struct io *io, const char *dir, enum io_type type)
390 init_io_rd(struct io *io, const char *argv[], const char *dir,
391 enum format_flags flags)
393 init_io(io, dir, IO_RD);
394 return format_argv(io->argv, argv, flags);
398 io_open(struct io *io, const char *name)
400 init_io(io, NULL, IO_FD);
401 io->pipe = *name ? open(name, O_RDONLY) : STDIN_FILENO;
404 return io->pipe != -1;
408 kill_io(struct io *io)
410 return io->pid == 0 || kill(io->pid, SIGKILL) != -1;
414 done_io(struct io *io)
425 pid_t waiting = waitpid(pid, &status, 0);
430 report("waitpid failed (%s)", strerror(errno));
434 return waiting == pid &&
435 !WIFSIGNALED(status) &&
437 !WEXITSTATUS(status);
444 start_io(struct io *io)
446 int pipefds[2] = { -1, -1 };
448 if (io->type == IO_FD)
451 if ((io->type == IO_RD || io->type == IO_WR) &&
454 else if (io->type == IO_AP)
455 pipefds[1] = io->pipe;
457 if ((io->pid = fork())) {
458 if (pipefds[!(io->type == IO_WR)] != -1)
459 close(pipefds[!(io->type == IO_WR)]);
461 io->pipe = pipefds[!!(io->type == IO_WR)];
466 if (io->type != IO_FG) {
467 int devnull = open("/dev/null", O_RDWR);
468 int readfd = io->type == IO_WR ? pipefds[0] : devnull;
469 int writefd = (io->type == IO_RD || io->type == IO_AP)
470 ? pipefds[1] : devnull;
472 dup2(readfd, STDIN_FILENO);
473 dup2(writefd, STDOUT_FILENO);
474 dup2(devnull, STDERR_FILENO);
477 if (pipefds[0] != -1)
479 if (pipefds[1] != -1)
483 if (io->dir && *io->dir && chdir(io->dir) == -1)
484 die("Failed to change directory: %s", strerror(errno));
486 execvp(io->argv[0], (char *const*) io->argv);
487 die("Failed to execute program: %s", strerror(errno));
490 if (pipefds[!!(io->type == IO_WR)] != -1)
491 close(pipefds[!!(io->type == IO_WR)]);
496 run_io(struct io *io, const char **argv, const char *dir, enum io_type type)
498 init_io(io, dir, type);
499 if (!format_argv(io->argv, argv, FORMAT_NONE))
505 run_io_do(struct io *io)
507 return start_io(io) && done_io(io);
511 run_io_bg(const char **argv)
515 init_io(&io, NULL, IO_BG);
516 if (!format_argv(io.argv, argv, FORMAT_NONE))
518 return run_io_do(&io);
522 run_io_fg(const char **argv, const char *dir)
526 init_io(&io, dir, IO_FG);
527 if (!format_argv(io.argv, argv, FORMAT_NONE))
529 return run_io_do(&io);
533 run_io_append(const char **argv, enum format_flags flags, int fd)
537 init_io(&io, NULL, IO_AP);
539 if (format_argv(io.argv, argv, flags))
540 return run_io_do(&io);
546 run_io_rd(struct io *io, const char **argv, enum format_flags flags)
548 return init_io_rd(io, argv, NULL, flags) && start_io(io);
552 io_eof(struct io *io)
558 io_error(struct io *io)
564 io_strerror(struct io *io)
566 return strerror(io->error);
570 io_can_read(struct io *io)
572 struct timeval tv = { 0, 500 };
576 FD_SET(io->pipe, &fds);
578 return select(io->pipe + 1, &fds, NULL, NULL, &tv) > 0;
582 io_read(struct io *io, void *buf, size_t bufsize)
585 ssize_t readsize = read(io->pipe, buf, bufsize);
587 if (readsize < 0 && (errno == EAGAIN || errno == EINTR))
589 else if (readsize == -1)
591 else if (readsize == 0)
598 io_get(struct io *io, int c, bool can_read)
604 io->buf = io->bufpos = malloc(BUFSIZ);
607 io->bufalloc = BUFSIZ;
612 if (io->bufsize > 0) {
613 eol = memchr(io->bufpos, c, io->bufsize);
615 char *line = io->bufpos;
618 io->bufpos = eol + 1;
619 io->bufsize -= io->bufpos - line;
626 io->bufpos[io->bufsize] = 0;
636 if (io->bufsize > 0 && io->bufpos > io->buf)
637 memmove(io->buf, io->bufpos, io->bufsize);
639 io->bufpos = io->buf;
640 readsize = io_read(io, io->buf + io->bufsize, io->bufalloc - io->bufsize);
643 io->bufsize += readsize;
648 io_write(struct io *io, const void *buf, size_t bufsize)
652 while (!io_error(io) && written < bufsize) {
655 size = write(io->pipe, buf + written, bufsize - written);
656 if (size < 0 && (errno == EAGAIN || errno == EINTR))
664 return written == bufsize;
668 io_read_buf(struct io *io, char buf[], size_t bufsize)
672 io->buf = io->bufpos = buf;
673 io->bufalloc = bufsize;
674 error = !io_get(io, '\n', TRUE) && io_error(io);
677 return done_io(io) || error;
681 run_io_buf(const char **argv, char buf[], size_t bufsize)
685 return run_io_rd(&io, argv, FORMAT_NONE) && io_read_buf(&io, buf, bufsize);
689 io_load(struct io *io, const char *separators,
690 int (*read_property)(char *, size_t, char *, size_t))
698 while (state == OK && (name = io_get(io, '\n', TRUE))) {
703 name = chomp_string(name);
704 namelen = strcspn(name, separators);
708 value = chomp_string(name + namelen + 1);
709 valuelen = strlen(value);
716 state = read_property(name, namelen, value, valuelen);
719 if (state != ERR && io_error(io))
727 run_io_load(const char **argv, const char *separators,
728 int (*read_property)(char *, size_t, char *, size_t))
732 return init_io_rd(&io, argv, NULL, FORMAT_NONE)
733 ? io_load(&io, separators, read_property) : ERR;
742 /* XXX: Keep the view request first and in sync with views[]. */ \
743 REQ_GROUP("View switching") \
744 REQ_(VIEW_MAIN, "Show main view"), \
745 REQ_(VIEW_DIFF, "Show diff view"), \
746 REQ_(VIEW_LOG, "Show log view"), \
747 REQ_(VIEW_TREE, "Show tree view"), \
748 REQ_(VIEW_BLOB, "Show blob view"), \
749 REQ_(VIEW_BLAME, "Show blame view"), \
750 REQ_(VIEW_HELP, "Show help page"), \
751 REQ_(VIEW_PAGER, "Show pager view"), \
752 REQ_(VIEW_STATUS, "Show status view"), \
753 REQ_(VIEW_STAGE, "Show stage view"), \
755 REQ_GROUP("View manipulation") \
756 REQ_(ENTER, "Enter current line and scroll"), \
757 REQ_(NEXT, "Move to next"), \
758 REQ_(PREVIOUS, "Move to previous"), \
759 REQ_(PARENT, "Move to parent"), \
760 REQ_(VIEW_NEXT, "Move focus to next view"), \
761 REQ_(REFRESH, "Reload and refresh"), \
762 REQ_(MAXIMIZE, "Maximize the current view"), \
763 REQ_(VIEW_CLOSE, "Close the current view"), \
764 REQ_(QUIT, "Close all views and quit"), \
766 REQ_GROUP("View specific requests") \
767 REQ_(STATUS_UPDATE, "Update file status"), \
768 REQ_(STATUS_REVERT, "Revert file changes"), \
769 REQ_(STATUS_MERGE, "Merge file using external tool"), \
770 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
772 REQ_GROUP("Cursor navigation") \
773 REQ_(MOVE_UP, "Move cursor one line up"), \
774 REQ_(MOVE_DOWN, "Move cursor one line down"), \
775 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
776 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
777 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
778 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
780 REQ_GROUP("Scrolling") \
781 REQ_(SCROLL_LEFT, "Scroll two columns left"), \
782 REQ_(SCROLL_RIGHT, "Scroll two columns right"), \
783 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
784 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
785 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
786 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
788 REQ_GROUP("Searching") \
789 REQ_(SEARCH, "Search the view"), \
790 REQ_(SEARCH_BACK, "Search backwards in the view"), \
791 REQ_(FIND_NEXT, "Find next search match"), \
792 REQ_(FIND_PREV, "Find previous search match"), \
794 REQ_GROUP("Option manipulation") \
795 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
796 REQ_(TOGGLE_DATE, "Toggle date display"), \
797 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
798 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
799 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
802 REQ_(PROMPT, "Bring up the prompt"), \
803 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
804 REQ_(SHOW_VERSION, "Show version information"), \
805 REQ_(STOP_LOADING, "Stop all loading views"), \
806 REQ_(EDIT, "Open in editor"), \
807 REQ_(NONE, "Do nothing")
810 /* User action requests. */
812 #define REQ_GROUP(help)
813 #define REQ_(req, help) REQ_##req
815 /* Offset all requests to avoid conflicts with ncurses getch values. */
816 REQ_OFFSET = KEY_MAX + 1,
823 struct request_info {
824 enum request request;
830 static const struct request_info req_info[] = {
831 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
832 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
839 get_request(const char *name)
841 int namelen = strlen(name);
844 for (i = 0; i < ARRAY_SIZE(req_info); i++)
845 if (req_info[i].namelen == namelen &&
846 !string_enum_compare(req_info[i].name, name, namelen))
847 return req_info[i].request;
857 /* Option and state variables. */
858 static bool opt_date = TRUE;
859 static bool opt_author = TRUE;
860 static bool opt_line_number = FALSE;
861 static bool opt_line_graphics = TRUE;
862 static bool opt_rev_graph = FALSE;
863 static bool opt_show_refs = TRUE;
864 static int opt_num_interval = NUMBER_INTERVAL;
865 static double opt_hscroll = 0.50;
866 static int opt_tab_size = TAB_SIZE;
867 static int opt_author_cols = AUTHOR_COLS-1;
868 static char opt_path[SIZEOF_STR] = "";
869 static char opt_file[SIZEOF_STR] = "";
870 static char opt_ref[SIZEOF_REF] = "";
871 static char opt_head[SIZEOF_REF] = "";
872 static char opt_head_rev[SIZEOF_REV] = "";
873 static char opt_remote[SIZEOF_REF] = "";
874 static char opt_encoding[20] = "UTF-8";
875 static bool opt_utf8 = TRUE;
876 static char opt_codeset[20] = "UTF-8";
877 static iconv_t opt_iconv = ICONV_NONE;
878 static char opt_search[SIZEOF_STR] = "";
879 static char opt_cdup[SIZEOF_STR] = "";
880 static char opt_prefix[SIZEOF_STR] = "";
881 static char opt_git_dir[SIZEOF_STR] = "";
882 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
883 static char opt_editor[SIZEOF_STR] = "";
884 static FILE *opt_tty = NULL;
886 #define is_initial_commit() (!*opt_head_rev)
887 #define is_head_commit(rev) (!strcmp((rev), "HEAD") || !strcmp(opt_head_rev, (rev)))
891 * Line-oriented content detection.
895 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
896 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
897 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
898 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
899 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
900 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
901 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
902 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
903 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
904 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
905 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
906 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
907 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
908 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
909 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
910 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
911 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
912 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
913 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
914 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
915 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
916 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
917 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
918 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
919 LINE(AUTHOR, "author ", COLOR_GREEN, COLOR_DEFAULT, 0), \
920 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
921 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
922 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
923 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
924 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
925 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
926 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
927 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
928 LINE(MODE, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
929 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
930 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
931 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
932 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
933 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
934 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
935 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
936 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
937 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
938 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
939 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
940 LINE(TREE_HEAD, "", COLOR_DEFAULT, COLOR_DEFAULT, A_BOLD), \
941 LINE(TREE_DIR, "", COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL), \
942 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
943 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
944 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
945 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
946 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
947 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
948 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
949 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
952 #define LINE(type, line, fg, bg, attr) \
960 const char *name; /* Option name. */
961 int namelen; /* Size of option name. */
962 const char *line; /* The start of line to match. */
963 int linelen; /* Size of string to match. */
964 int fg, bg, attr; /* Color and text attributes for the lines. */
967 static struct line_info line_info[] = {
968 #define LINE(type, line, fg, bg, attr) \
969 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
974 static enum line_type
975 get_line_type(const char *line)
977 int linelen = strlen(line);
980 for (type = 0; type < ARRAY_SIZE(line_info); type++)
981 /* Case insensitive search matches Signed-off-by lines better. */
982 if (linelen >= line_info[type].linelen &&
983 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
990 get_line_attr(enum line_type type)
992 assert(type < ARRAY_SIZE(line_info));
993 return COLOR_PAIR(type) | line_info[type].attr;
996 static struct line_info *
997 get_line_info(const char *name)
999 size_t namelen = strlen(name);
1000 enum line_type type;
1002 for (type = 0; type < ARRAY_SIZE(line_info); type++)
1003 if (namelen == line_info[type].namelen &&
1004 !string_enum_compare(line_info[type].name, name, namelen))
1005 return &line_info[type];
1013 int default_bg = line_info[LINE_DEFAULT].bg;
1014 int default_fg = line_info[LINE_DEFAULT].fg;
1015 enum line_type type;
1019 if (assume_default_colors(default_fg, default_bg) == ERR) {
1020 default_bg = COLOR_BLACK;
1021 default_fg = COLOR_WHITE;
1024 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
1025 struct line_info *info = &line_info[type];
1026 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
1027 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
1029 init_pair(type, fg, bg);
1034 enum line_type type;
1037 unsigned int selected:1;
1038 unsigned int dirty:1;
1039 unsigned int cleareol:1;
1041 void *data; /* User data */
1051 enum request request;
1054 static const struct keybinding default_keybindings[] = {
1055 /* View switching */
1056 { 'm', REQ_VIEW_MAIN },
1057 { 'd', REQ_VIEW_DIFF },
1058 { 'l', REQ_VIEW_LOG },
1059 { 't', REQ_VIEW_TREE },
1060 { 'f', REQ_VIEW_BLOB },
1061 { 'B', REQ_VIEW_BLAME },
1062 { 'p', REQ_VIEW_PAGER },
1063 { 'h', REQ_VIEW_HELP },
1064 { 'S', REQ_VIEW_STATUS },
1065 { 'c', REQ_VIEW_STAGE },
1067 /* View manipulation */
1068 { 'q', REQ_VIEW_CLOSE },
1069 { KEY_TAB, REQ_VIEW_NEXT },
1070 { KEY_RETURN, REQ_ENTER },
1071 { KEY_UP, REQ_PREVIOUS },
1072 { KEY_DOWN, REQ_NEXT },
1073 { 'R', REQ_REFRESH },
1074 { KEY_F(5), REQ_REFRESH },
1075 { 'O', REQ_MAXIMIZE },
1077 /* Cursor navigation */
1078 { 'k', REQ_MOVE_UP },
1079 { 'j', REQ_MOVE_DOWN },
1080 { KEY_HOME, REQ_MOVE_FIRST_LINE },
1081 { KEY_END, REQ_MOVE_LAST_LINE },
1082 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
1083 { ' ', REQ_MOVE_PAGE_DOWN },
1084 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
1085 { 'b', REQ_MOVE_PAGE_UP },
1086 { '-', REQ_MOVE_PAGE_UP },
1089 { KEY_LEFT, REQ_SCROLL_LEFT },
1090 { KEY_RIGHT, REQ_SCROLL_RIGHT },
1091 { KEY_IC, REQ_SCROLL_LINE_UP },
1092 { KEY_DC, REQ_SCROLL_LINE_DOWN },
1093 { 'w', REQ_SCROLL_PAGE_UP },
1094 { 's', REQ_SCROLL_PAGE_DOWN },
1097 { '/', REQ_SEARCH },
1098 { '?', REQ_SEARCH_BACK },
1099 { 'n', REQ_FIND_NEXT },
1100 { 'N', REQ_FIND_PREV },
1104 { 'z', REQ_STOP_LOADING },
1105 { 'v', REQ_SHOW_VERSION },
1106 { 'r', REQ_SCREEN_REDRAW },
1107 { '.', REQ_TOGGLE_LINENO },
1108 { 'D', REQ_TOGGLE_DATE },
1109 { 'A', REQ_TOGGLE_AUTHOR },
1110 { 'g', REQ_TOGGLE_REV_GRAPH },
1111 { 'F', REQ_TOGGLE_REFS },
1112 { ':', REQ_PROMPT },
1113 { 'u', REQ_STATUS_UPDATE },
1114 { '!', REQ_STATUS_REVERT },
1115 { 'M', REQ_STATUS_MERGE },
1116 { '@', REQ_STAGE_NEXT },
1117 { ',', REQ_PARENT },
1121 #define KEYMAP_INFO \
1135 #define KEYMAP_(name) KEYMAP_##name
1140 static const struct enum_map keymap_table[] = {
1141 #define KEYMAP_(name) ENUM_MAP(#name, KEYMAP_##name)
1146 #define set_keymap(map, name) map_enum(map, keymap_table, name)
1148 struct keybinding_table {
1149 struct keybinding *data;
1153 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
1156 add_keybinding(enum keymap keymap, enum request request, int key)
1158 struct keybinding_table *table = &keybindings[keymap];
1160 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
1162 die("Failed to allocate keybinding");
1163 table->data[table->size].alias = key;
1164 table->data[table->size++].request = request;
1167 /* Looks for a key binding first in the given map, then in the generic map, and
1168 * lastly in the default keybindings. */
1170 get_keybinding(enum keymap keymap, int key)
1174 for (i = 0; i < keybindings[keymap].size; i++)
1175 if (keybindings[keymap].data[i].alias == key)
1176 return keybindings[keymap].data[i].request;
1178 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
1179 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
1180 return keybindings[KEYMAP_GENERIC].data[i].request;
1182 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
1183 if (default_keybindings[i].alias == key)
1184 return default_keybindings[i].request;
1186 return (enum request) key;
1195 static const struct key key_table[] = {
1196 { "Enter", KEY_RETURN },
1198 { "Backspace", KEY_BACKSPACE },
1200 { "Escape", KEY_ESC },
1201 { "Left", KEY_LEFT },
1202 { "Right", KEY_RIGHT },
1204 { "Down", KEY_DOWN },
1205 { "Insert", KEY_IC },
1206 { "Delete", KEY_DC },
1208 { "Home", KEY_HOME },
1210 { "PageUp", KEY_PPAGE },
1211 { "PageDown", KEY_NPAGE },
1221 { "F10", KEY_F(10) },
1222 { "F11", KEY_F(11) },
1223 { "F12", KEY_F(12) },
1227 get_key_value(const char *name)
1231 for (i = 0; i < ARRAY_SIZE(key_table); i++)
1232 if (!strcasecmp(key_table[i].name, name))
1233 return key_table[i].value;
1235 if (strlen(name) == 1 && isprint(*name))
1242 get_key_name(int key_value)
1244 static char key_char[] = "'X'";
1245 const char *seq = NULL;
1248 for (key = 0; key < ARRAY_SIZE(key_table); key++)
1249 if (key_table[key].value == key_value)
1250 seq = key_table[key].name;
1254 isprint(key_value)) {
1255 key_char[1] = (char) key_value;
1259 return seq ? seq : "(no key)";
1263 get_key(enum request request)
1265 static char buf[BUFSIZ];
1272 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1273 const struct keybinding *keybinding = &default_keybindings[i];
1275 if (keybinding->request != request)
1278 if (!string_format_from(buf, &pos, "%s%s", sep,
1279 get_key_name(keybinding->alias)))
1280 return "Too many keybindings!";
1287 struct run_request {
1290 const char *argv[SIZEOF_ARG];
1293 static struct run_request *run_request;
1294 static size_t run_requests;
1297 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
1299 struct run_request *req;
1301 if (argc >= ARRAY_SIZE(req->argv) - 1)
1304 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1309 req = &run_request[run_requests];
1310 req->keymap = keymap;
1312 req->argv[0] = NULL;
1314 if (!format_argv(req->argv, argv, FORMAT_NONE))
1317 return REQ_NONE + ++run_requests;
1320 static struct run_request *
1321 get_run_request(enum request request)
1323 if (request <= REQ_NONE)
1325 return &run_request[request - REQ_NONE - 1];
1329 add_builtin_run_requests(void)
1331 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
1332 const char *gc[] = { "git", "gc", NULL };
1339 { KEYMAP_MAIN, 'C', ARRAY_SIZE(cherry_pick) - 1, cherry_pick },
1340 { KEYMAP_GENERIC, 'G', ARRAY_SIZE(gc) - 1, gc },
1344 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1347 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argc, reqs[i].argv);
1348 if (req != REQ_NONE)
1349 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1354 * User config file handling.
1357 static int config_lineno;
1358 static bool config_errors;
1359 static const char *config_msg;
1361 static const struct enum_map color_map[] = {
1362 #define COLOR_MAP(name) ENUM_MAP(#name, COLOR_##name)
1374 static const struct enum_map attr_map[] = {
1375 #define ATTR_MAP(name) ENUM_MAP(#name, A_##name)
1382 ATTR_MAP(UNDERLINE),
1385 #define set_attribute(attr, name) map_enum(attr, attr_map, name)
1387 static int parse_step(double *opt, const char *arg)
1390 if (!strchr(arg, '%'))
1393 /* "Shift down" so 100% and 1 does not conflict. */
1394 *opt = (*opt - 1) / 100;
1397 config_msg = "Step value larger than 100%";
1402 config_msg = "Invalid step value";
1409 parse_int(int *opt, const char *arg, int min, int max)
1411 int value = atoi(arg);
1413 if (min <= value && value <= max) {
1418 config_msg = "Integer value out of bound";
1423 set_color(int *color, const char *name)
1425 if (map_enum(color, color_map, name))
1427 if (!prefixcmp(name, "color"))
1428 return parse_int(color, name + 5, 0, 255) == OK;
1432 /* Wants: object fgcolor bgcolor [attribute] */
1434 option_color_command(int argc, const char *argv[])
1436 struct line_info *info;
1438 if (argc != 3 && argc != 4) {
1439 config_msg = "Wrong number of arguments given to color command";
1443 info = get_line_info(argv[0]);
1445 static const struct enum_map obsolete[] = {
1446 ENUM_MAP("main-delim", LINE_DELIMITER),
1447 ENUM_MAP("main-date", LINE_DATE),
1448 ENUM_MAP("main-author", LINE_AUTHOR),
1452 if (!map_enum(&index, obsolete, argv[0])) {
1453 config_msg = "Unknown color name";
1456 info = &line_info[index];
1459 if (!set_color(&info->fg, argv[1]) ||
1460 !set_color(&info->bg, argv[2])) {
1461 config_msg = "Unknown color";
1465 if (argc == 4 && !set_attribute(&info->attr, argv[3])) {
1466 config_msg = "Unknown attribute";
1473 static int parse_bool(bool *opt, const char *arg)
1475 *opt = (!strcmp(arg, "1") || !strcmp(arg, "true") || !strcmp(arg, "yes"))
1481 parse_string(char *opt, const char *arg, size_t optsize)
1483 int arglen = strlen(arg);
1488 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1489 config_msg = "Unmatched quotation";
1492 arg += 1; arglen -= 2;
1494 string_ncopy_do(opt, optsize, arg, arglen);
1499 /* Wants: name = value */
1501 option_set_command(int argc, const char *argv[])
1504 config_msg = "Wrong number of arguments given to set command";
1508 if (strcmp(argv[1], "=")) {
1509 config_msg = "No value assigned";
1513 if (!strcmp(argv[0], "show-author"))
1514 return parse_bool(&opt_author, argv[2]);
1516 if (!strcmp(argv[0], "show-date"))
1517 return parse_bool(&opt_date, argv[2]);
1519 if (!strcmp(argv[0], "show-rev-graph"))
1520 return parse_bool(&opt_rev_graph, argv[2]);
1522 if (!strcmp(argv[0], "show-refs"))
1523 return parse_bool(&opt_show_refs, argv[2]);
1525 if (!strcmp(argv[0], "show-line-numbers"))
1526 return parse_bool(&opt_line_number, argv[2]);
1528 if (!strcmp(argv[0], "line-graphics"))
1529 return parse_bool(&opt_line_graphics, argv[2]);
1531 if (!strcmp(argv[0], "line-number-interval"))
1532 return parse_int(&opt_num_interval, argv[2], 1, 1024);
1534 if (!strcmp(argv[0], "author-width"))
1535 return parse_int(&opt_author_cols, argv[2], 0, 1024);
1537 if (!strcmp(argv[0], "horizontal-scroll"))
1538 return parse_step(&opt_hscroll, argv[2]);
1540 if (!strcmp(argv[0], "tab-size"))
1541 return parse_int(&opt_tab_size, argv[2], 1, 1024);
1543 if (!strcmp(argv[0], "commit-encoding"))
1544 return parse_string(opt_encoding, argv[2], sizeof(opt_encoding));
1546 config_msg = "Unknown variable name";
1550 /* Wants: mode request key */
1552 option_bind_command(int argc, const char *argv[])
1554 enum request request;
1559 config_msg = "Wrong number of arguments given to bind command";
1563 if (set_keymap(&keymap, argv[0]) == ERR) {
1564 config_msg = "Unknown key map";
1568 key = get_key_value(argv[1]);
1570 config_msg = "Unknown key";
1574 request = get_request(argv[2]);
1575 if (request == REQ_NONE) {
1576 static const struct enum_map obsolete[] = {
1577 ENUM_MAP("cherry-pick", REQ_NONE),
1578 ENUM_MAP("screen-resize", REQ_NONE),
1579 ENUM_MAP("tree-parent", REQ_PARENT),
1583 if (map_enum(&alias, obsolete, argv[2])) {
1584 if (alias != REQ_NONE)
1585 add_keybinding(keymap, alias, key);
1586 config_msg = "Obsolete request name";
1590 if (request == REQ_NONE && *argv[2]++ == '!')
1591 request = add_run_request(keymap, key, argc - 2, argv + 2);
1592 if (request == REQ_NONE) {
1593 config_msg = "Unknown request name";
1597 add_keybinding(keymap, request, key);
1603 set_option(const char *opt, char *value)
1605 const char *argv[SIZEOF_ARG];
1608 if (!argv_from_string(argv, &argc, value)) {
1609 config_msg = "Too many option arguments";
1613 if (!strcmp(opt, "color"))
1614 return option_color_command(argc, argv);
1616 if (!strcmp(opt, "set"))
1617 return option_set_command(argc, argv);
1619 if (!strcmp(opt, "bind"))
1620 return option_bind_command(argc, argv);
1622 config_msg = "Unknown option command";
1627 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1632 config_msg = "Internal error";
1634 /* Check for comment markers, since read_properties() will
1635 * only ensure opt and value are split at first " \t". */
1636 optlen = strcspn(opt, "#");
1640 if (opt[optlen] != 0) {
1641 config_msg = "No option value";
1645 /* Look for comment endings in the value. */
1646 size_t len = strcspn(value, "#");
1648 if (len < valuelen) {
1650 value[valuelen] = 0;
1653 status = set_option(opt, value);
1656 if (status == ERR) {
1657 warn("Error on line %d, near '%.*s': %s",
1658 config_lineno, (int) optlen, opt, config_msg);
1659 config_errors = TRUE;
1662 /* Always keep going if errors are encountered. */
1667 load_option_file(const char *path)
1671 /* It's OK that the file doesn't exist. */
1672 if (!io_open(&io, path))
1676 config_errors = FALSE;
1678 if (io_load(&io, " \t", read_option) == ERR ||
1679 config_errors == TRUE)
1680 warn("Errors while loading %s.", path);
1686 const char *home = getenv("HOME");
1687 const char *tigrc_user = getenv("TIGRC_USER");
1688 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1689 char buf[SIZEOF_STR];
1691 add_builtin_run_requests();
1694 tigrc_system = SYSCONFDIR "/tigrc";
1695 load_option_file(tigrc_system);
1698 if (!home || !string_format(buf, "%s/.tigrc", home))
1702 load_option_file(tigrc_user);
1715 /* The display array of active views and the index of the current view. */
1716 static struct view *display[2];
1717 static unsigned int current_view;
1719 #define foreach_displayed_view(view, i) \
1720 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1722 #define displayed_views() (display[1] != NULL ? 2 : 1)
1724 /* Current head and commit ID */
1725 static char ref_blob[SIZEOF_REF] = "";
1726 static char ref_commit[SIZEOF_REF] = "HEAD";
1727 static char ref_head[SIZEOF_REF] = "HEAD";
1730 const char *name; /* View name */
1731 const char *cmd_env; /* Command line set via environment */
1732 const char *id; /* Points to either of ref_{head,commit,blob} */
1734 struct view_ops *ops; /* View operations */
1736 enum keymap keymap; /* What keymap does this view have */
1737 bool git_dir; /* Whether the view requires a git directory. */
1739 char ref[SIZEOF_REF]; /* Hovered commit reference */
1740 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1742 int height, width; /* The width and height of the main window */
1743 WINDOW *win; /* The main window */
1744 WINDOW *title; /* The title window living below the main window */
1747 unsigned long offset; /* Offset of the window top */
1748 unsigned long yoffset; /* Offset from the window side. */
1749 unsigned long lineno; /* Current line number */
1750 unsigned long p_offset; /* Previous offset of the window top */
1751 unsigned long p_yoffset;/* Previous offset from the window side */
1752 unsigned long p_lineno; /* Previous current line number */
1753 bool p_restore; /* Should the previous position be restored. */
1756 char grep[SIZEOF_STR]; /* Search string */
1757 regex_t *regex; /* Pre-compiled regexp */
1759 /* If non-NULL, points to the view that opened this view. If this view
1760 * is closed tig will switch back to the parent view. */
1761 struct view *parent;
1764 size_t lines; /* Total number of lines */
1765 struct line *line; /* Line index */
1766 size_t line_alloc; /* Total number of allocated lines */
1767 unsigned int digits; /* Number of digits in the lines member. */
1770 struct line *curline; /* Line currently being drawn. */
1771 enum line_type curtype; /* Attribute currently used for drawing. */
1772 unsigned long col; /* Column when drawing. */
1773 bool has_scrolled; /* View was scrolled. */
1783 /* What type of content being displayed. Used in the title bar. */
1785 /* Default command arguments. */
1787 /* Open and reads in all view content. */
1788 bool (*open)(struct view *view);
1789 /* Read one line; updates view->line. */
1790 bool (*read)(struct view *view, char *data);
1791 /* Draw one line; @lineno must be < view->height. */
1792 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1793 /* Depending on view handle a special requests. */
1794 enum request (*request)(struct view *view, enum request request, struct line *line);
1795 /* Search for regexp in a line. */
1796 bool (*grep)(struct view *view, struct line *line);
1798 void (*select)(struct view *view, struct line *line);
1801 static struct view_ops blame_ops;
1802 static struct view_ops blob_ops;
1803 static struct view_ops diff_ops;
1804 static struct view_ops help_ops;
1805 static struct view_ops log_ops;
1806 static struct view_ops main_ops;
1807 static struct view_ops pager_ops;
1808 static struct view_ops stage_ops;
1809 static struct view_ops status_ops;
1810 static struct view_ops tree_ops;
1812 #define VIEW_STR(name, env, ref, ops, map, git) \
1813 { name, #env, ref, ops, map, git }
1815 #define VIEW_(id, name, ops, git, ref) \
1816 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1819 static struct view views[] = {
1820 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1821 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1822 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1823 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1824 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1825 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1826 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1827 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1828 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1829 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1832 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1833 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1835 #define foreach_view(view, i) \
1836 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1838 #define view_is_displayed(view) \
1839 (view == display[0] || view == display[1])
1846 static int line_graphics[] = {
1847 /* LINE_GRAPHIC_VLINE: */ '|'
1851 set_view_attr(struct view *view, enum line_type type)
1853 if (!view->curline->selected && view->curtype != type) {
1854 wattrset(view->win, get_line_attr(type));
1855 wchgat(view->win, -1, 0, type, NULL);
1856 view->curtype = type;
1861 draw_chars(struct view *view, enum line_type type, const char *string,
1862 int max_len, bool use_tilde)
1866 int trimmed = FALSE;
1867 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1873 len = utf8_length(&string, skip, &col, max_len, &trimmed, use_tilde);
1875 col = len = strlen(string);
1876 if (len > max_len) {
1880 col = len = max_len;
1885 set_view_attr(view, type);
1887 waddnstr(view->win, string, len);
1888 if (trimmed && use_tilde) {
1889 set_view_attr(view, LINE_DELIMITER);
1890 waddch(view->win, '~');
1898 draw_space(struct view *view, enum line_type type, int max, int spaces)
1900 static char space[] = " ";
1903 spaces = MIN(max, spaces);
1905 while (spaces > 0) {
1906 int len = MIN(spaces, sizeof(space) - 1);
1908 col += draw_chars(view, type, space, spaces, FALSE);
1916 draw_lineno(struct view *view, unsigned int lineno)
1918 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1920 int digits3 = view->digits < 3 ? 3 : view->digits;
1921 int max_number = MIN(digits3, STRING_SIZE(number));
1922 int max = view->width - view->col;
1925 if (max < max_number)
1928 lineno += view->offset + 1;
1929 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1930 static char fmt[] = "%1ld";
1932 if (view->digits <= 9)
1933 fmt[1] = '0' + digits3;
1935 if (!string_format(number, fmt, lineno))
1937 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1939 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1942 if (col < max && skip <= col) {
1943 set_view_attr(view, LINE_DEFAULT);
1944 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1949 if (col < max && skip <= col)
1950 col = draw_space(view, LINE_DEFAULT, max - col, 1);
1953 return view->width + view->yoffset <= view->col;
1957 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1959 view->col += draw_chars(view, type, string, view->width + view->yoffset - view->col, trim);
1960 return view->width - view->col <= 0;
1964 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1966 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1967 int max = view->width - view->col;
1973 set_view_attr(view, type);
1974 /* Using waddch() instead of waddnstr() ensures that
1975 * they'll be rendered correctly for the cursor line. */
1976 for (i = skip; i < size; i++)
1977 waddch(view->win, graphic[i]);
1980 if (size < max && skip <= size)
1981 waddch(view->win, ' ');
1984 return view->width - view->col <= 0;
1988 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1990 int max = MIN(view->width - view->col, len);
1994 col = draw_chars(view, type, text, max - 1, trim);
1996 col = draw_space(view, type, max - 1, max - 1);
1999 view->col += draw_space(view, LINE_DEFAULT, max - col, max - col);
2000 return view->width + view->yoffset <= view->col;
2004 draw_date(struct view *view, struct tm *time)
2006 char buf[DATE_COLS];
2011 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
2012 date = timelen ? buf : NULL;
2014 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
2018 draw_author(struct view *view, const char *author)
2020 bool trim = opt_author_cols == 0 || opt_author_cols > 5 || !author;
2023 static char initials[10];
2026 #define is_initial_sep(c) (isspace(c) || ispunct(c) || (c) == '@')
2028 memset(initials, 0, sizeof(initials));
2029 for (pos = 0; *author && pos < opt_author_cols - 1; author++, pos++) {
2030 while (is_initial_sep(*author))
2032 strncpy(&initials[pos], author, sizeof(initials) - 1 - pos);
2033 while (*author && !is_initial_sep(author[1]))
2040 return draw_field(view, LINE_AUTHOR, author, opt_author_cols, trim);
2044 draw_mode(struct view *view, mode_t mode)
2050 else if (S_ISLNK(mode))
2052 else if (S_ISGITLINK(mode))
2054 else if (S_ISREG(mode) && mode & S_IXUSR)
2056 else if (S_ISREG(mode))
2061 return draw_field(view, LINE_MODE, str, STRING_SIZE("-rw-r--r-- "), FALSE);
2065 draw_view_line(struct view *view, unsigned int lineno)
2068 bool selected = (view->offset + lineno == view->lineno);
2070 assert(view_is_displayed(view));
2072 if (view->offset + lineno >= view->lines)
2075 line = &view->line[view->offset + lineno];
2077 wmove(view->win, lineno, 0);
2079 wclrtoeol(view->win);
2081 view->curline = line;
2082 view->curtype = LINE_NONE;
2083 line->selected = FALSE;
2084 line->dirty = line->cleareol = 0;
2087 set_view_attr(view, LINE_CURSOR);
2088 line->selected = TRUE;
2089 view->ops->select(view, line);
2092 return view->ops->draw(view, line, lineno);
2096 redraw_view_dirty(struct view *view)
2101 for (lineno = 0; lineno < view->height; lineno++) {
2102 if (view->offset + lineno >= view->lines)
2104 if (!view->line[view->offset + lineno].dirty)
2107 if (!draw_view_line(view, lineno))
2113 wnoutrefresh(view->win);
2117 redraw_view_from(struct view *view, int lineno)
2119 assert(0 <= lineno && lineno < view->height);
2121 for (; lineno < view->height; lineno++) {
2122 if (!draw_view_line(view, lineno))
2126 wnoutrefresh(view->win);
2130 redraw_view(struct view *view)
2133 redraw_view_from(view, 0);
2138 update_view_title(struct view *view)
2140 char buf[SIZEOF_STR];
2141 char state[SIZEOF_STR];
2142 size_t bufpos = 0, statelen = 0;
2144 assert(view_is_displayed(view));
2146 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2147 unsigned int view_lines = view->offset + view->height;
2148 unsigned int lines = view->lines
2149 ? MIN(view_lines, view->lines) * 100 / view->lines
2152 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2161 time_t secs = time(NULL) - view->start_time;
2163 /* Three git seconds are a long time ... */
2165 string_format_from(state, &statelen, " loading %lds", secs);
2168 string_format_from(buf, &bufpos, "[%s]", view->name);
2169 if (*view->ref && bufpos < view->width) {
2170 size_t refsize = strlen(view->ref);
2171 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2173 if (minsize < view->width)
2174 refsize = view->width - minsize + 7;
2175 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2178 if (statelen && bufpos < view->width) {
2179 string_format_from(buf, &bufpos, "%s", state);
2182 if (view == display[current_view])
2183 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2185 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2187 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2188 wclrtoeol(view->title);
2189 wnoutrefresh(view->title);
2193 resize_display(void)
2196 struct view *base = display[0];
2197 struct view *view = display[1] ? display[1] : display[0];
2199 /* Setup window dimensions */
2201 getmaxyx(stdscr, base->height, base->width);
2203 /* Make room for the status window. */
2207 /* Horizontal split. */
2208 view->width = base->width;
2209 view->height = SCALE_SPLIT_VIEW(base->height);
2210 base->height -= view->height;
2212 /* Make room for the title bar. */
2216 /* Make room for the title bar. */
2221 foreach_displayed_view (view, i) {
2223 view->win = newwin(view->height, 0, offset, 0);
2225 die("Failed to create %s view", view->name);
2227 scrollok(view->win, FALSE);
2229 view->title = newwin(1, 0, offset + view->height, 0);
2231 die("Failed to create title window");
2234 wresize(view->win, view->height, view->width);
2235 mvwin(view->win, offset, 0);
2236 mvwin(view->title, offset + view->height, 0);
2239 offset += view->height + 1;
2244 redraw_display(bool clear)
2249 foreach_displayed_view (view, i) {
2253 update_view_title(view);
2258 toggle_view_option(bool *option, const char *help)
2261 redraw_display(FALSE);
2262 report("%sabling %s", *option ? "En" : "Dis", help);
2266 maximize_view(struct view *view)
2268 memset(display, 0, sizeof(display));
2270 display[current_view] = view;
2272 redraw_display(FALSE);
2282 goto_view_line(struct view *view, unsigned long offset, unsigned long lineno)
2284 if (lineno >= view->lines)
2285 lineno = view->lines > 0 ? view->lines - 1 : 0;
2287 if (offset > lineno || offset + view->height <= lineno) {
2288 unsigned long half = view->height / 2;
2291 offset = lineno - half;
2296 if (offset != view->offset || lineno != view->lineno) {
2297 view->offset = offset;
2298 view->lineno = lineno;
2306 apply_step(double step, int value)
2310 value *= step + 0.01;
2311 return value ? value : 1;
2314 /* Scrolling backend */
2316 do_scroll_view(struct view *view, int lines)
2318 bool redraw_current_line = FALSE;
2320 /* The rendering expects the new offset. */
2321 view->offset += lines;
2323 assert(0 <= view->offset && view->offset < view->lines);
2326 /* Move current line into the view. */
2327 if (view->lineno < view->offset) {
2328 view->lineno = view->offset;
2329 redraw_current_line = TRUE;
2330 } else if (view->lineno >= view->offset + view->height) {
2331 view->lineno = view->offset + view->height - 1;
2332 redraw_current_line = TRUE;
2335 assert(view->offset <= view->lineno && view->lineno < view->lines);
2337 /* Redraw the whole screen if scrolling is pointless. */
2338 if (view->height < ABS(lines)) {
2342 int line = lines > 0 ? view->height - lines : 0;
2343 int end = line + ABS(lines);
2345 scrollok(view->win, TRUE);
2346 wscrl(view->win, lines);
2347 scrollok(view->win, FALSE);
2349 while (line < end && draw_view_line(view, line))
2352 if (redraw_current_line)
2353 draw_view_line(view, view->lineno - view->offset);
2354 wnoutrefresh(view->win);
2357 view->has_scrolled = TRUE;
2361 /* Scroll frontend */
2363 scroll_view(struct view *view, enum request request)
2367 assert(view_is_displayed(view));
2370 case REQ_SCROLL_LEFT:
2371 if (view->yoffset == 0) {
2372 report("Cannot scroll beyond the first column");
2375 if (view->yoffset <= apply_step(opt_hscroll, view->width))
2378 view->yoffset -= apply_step(opt_hscroll, view->width);
2379 redraw_view_from(view, 0);
2382 case REQ_SCROLL_RIGHT:
2383 view->yoffset += apply_step(opt_hscroll, view->width);
2384 if (view->yoffset > view->width)
2385 view->yoffset = view->width;
2389 case REQ_SCROLL_PAGE_DOWN:
2390 lines = view->height;
2391 case REQ_SCROLL_LINE_DOWN:
2392 if (view->offset + lines > view->lines)
2393 lines = view->lines - view->offset;
2395 if (lines == 0 || view->offset + view->height >= view->lines) {
2396 report("Cannot scroll beyond the last line");
2401 case REQ_SCROLL_PAGE_UP:
2402 lines = view->height;
2403 case REQ_SCROLL_LINE_UP:
2404 if (lines > view->offset)
2405 lines = view->offset;
2408 report("Cannot scroll beyond the first line");
2416 die("request %d not handled in switch", request);
2419 do_scroll_view(view, lines);
2424 move_view(struct view *view, enum request request)
2426 int scroll_steps = 0;
2430 case REQ_MOVE_FIRST_LINE:
2431 steps = -view->lineno;
2434 case REQ_MOVE_LAST_LINE:
2435 steps = view->lines - view->lineno - 1;
2438 case REQ_MOVE_PAGE_UP:
2439 steps = view->height > view->lineno
2440 ? -view->lineno : -view->height;
2443 case REQ_MOVE_PAGE_DOWN:
2444 steps = view->lineno + view->height >= view->lines
2445 ? view->lines - view->lineno - 1 : view->height;
2457 die("request %d not handled in switch", request);
2460 if (steps <= 0 && view->lineno == 0) {
2461 report("Cannot move beyond the first line");
2464 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2465 report("Cannot move beyond the last line");
2469 /* Move the current line */
2470 view->lineno += steps;
2471 assert(0 <= view->lineno && view->lineno < view->lines);
2473 /* Check whether the view needs to be scrolled */
2474 if (view->lineno < view->offset ||
2475 view->lineno >= view->offset + view->height) {
2476 scroll_steps = steps;
2477 if (steps < 0 && -steps > view->offset) {
2478 scroll_steps = -view->offset;
2480 } else if (steps > 0) {
2481 if (view->lineno == view->lines - 1 &&
2482 view->lines > view->height) {
2483 scroll_steps = view->lines - view->offset - 1;
2484 if (scroll_steps >= view->height)
2485 scroll_steps -= view->height - 1;
2490 if (!view_is_displayed(view)) {
2491 view->offset += scroll_steps;
2492 assert(0 <= view->offset && view->offset < view->lines);
2493 view->ops->select(view, &view->line[view->lineno]);
2497 /* Repaint the old "current" line if we be scrolling */
2498 if (ABS(steps) < view->height)
2499 draw_view_line(view, view->lineno - steps - view->offset);
2502 do_scroll_view(view, scroll_steps);
2506 /* Draw the current line */
2507 draw_view_line(view, view->lineno - view->offset);
2509 wnoutrefresh(view->win);
2518 static void search_view(struct view *view, enum request request);
2521 select_view_line(struct view *view, unsigned long lineno)
2523 unsigned long old_lineno = view->lineno;
2524 unsigned long old_offset = view->offset;
2526 if (goto_view_line(view, view->offset, lineno)) {
2527 if (view_is_displayed(view)) {
2528 if (old_offset != view->offset) {
2531 draw_view_line(view, old_lineno - view->offset);
2532 draw_view_line(view, view->lineno - view->offset);
2533 wnoutrefresh(view->win);
2536 view->ops->select(view, &view->line[view->lineno]);
2542 find_next(struct view *view, enum request request)
2544 unsigned long lineno = view->lineno;
2549 report("No previous search");
2551 search_view(view, request);
2561 case REQ_SEARCH_BACK:
2570 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2571 lineno += direction;
2573 /* Note, lineno is unsigned long so will wrap around in which case it
2574 * will become bigger than view->lines. */
2575 for (; lineno < view->lines; lineno += direction) {
2576 if (view->ops->grep(view, &view->line[lineno])) {
2577 select_view_line(view, lineno);
2578 report("Line %ld matches '%s'", lineno + 1, view->grep);
2583 report("No match found for '%s'", view->grep);
2587 search_view(struct view *view, enum request request)
2592 regfree(view->regex);
2595 view->regex = calloc(1, sizeof(*view->regex));
2600 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2601 if (regex_err != 0) {
2602 char buf[SIZEOF_STR] = "unknown error";
2604 regerror(regex_err, view->regex, buf, sizeof(buf));
2605 report("Search failed: %s", buf);
2609 string_copy(view->grep, opt_search);
2611 find_next(view, request);
2615 * Incremental updating
2619 reset_view(struct view *view)
2623 for (i = 0; i < view->lines; i++)
2624 free(view->line[i].data);
2627 view->p_offset = view->offset;
2628 view->p_yoffset = view->yoffset;
2629 view->p_lineno = view->lineno;
2636 view->line_alloc = 0;
2638 view->update_secs = 0;
2642 free_argv(const char *argv[])
2646 for (argc = 0; argv[argc]; argc++)
2647 free((void *) argv[argc]);
2651 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2653 char buf[SIZEOF_STR];
2655 bool noreplace = flags == FORMAT_NONE;
2657 free_argv(dst_argv);
2659 for (argc = 0; src_argv[argc]; argc++) {
2660 const char *arg = src_argv[argc];
2664 char *next = strstr(arg, "%(");
2665 int len = next - arg;
2668 if (!next || noreplace) {
2669 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2674 } else if (!prefixcmp(next, "%(directory)")) {
2677 } else if (!prefixcmp(next, "%(file)")) {
2680 } else if (!prefixcmp(next, "%(ref)")) {
2681 value = *opt_ref ? opt_ref : "HEAD";
2683 } else if (!prefixcmp(next, "%(head)")) {
2686 } else if (!prefixcmp(next, "%(commit)")) {
2689 } else if (!prefixcmp(next, "%(blob)")) {
2693 report("Unknown replacement: `%s`", next);
2697 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2700 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2703 dst_argv[argc] = strdup(buf);
2704 if (!dst_argv[argc])
2708 dst_argv[argc] = NULL;
2710 return src_argv[argc] == NULL;
2714 restore_view_position(struct view *view)
2716 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2719 /* Changing the view position cancels the restoring. */
2720 /* FIXME: Changing back to the first line is not detected. */
2721 if (view->offset != 0 || view->lineno != 0) {
2722 view->p_restore = FALSE;
2726 if (goto_view_line(view, view->p_offset, view->p_lineno) &&
2727 view_is_displayed(view))
2730 view->yoffset = view->p_yoffset;
2731 view->p_restore = FALSE;
2737 end_update(struct view *view, bool force)
2741 while (!view->ops->read(view, NULL))
2744 set_nonblocking_input(FALSE);
2746 kill_io(view->pipe);
2747 done_io(view->pipe);
2752 setup_update(struct view *view, const char *vid)
2754 set_nonblocking_input(TRUE);
2756 string_copy_rev(view->vid, vid);
2757 view->pipe = &view->io;
2758 view->start_time = time(NULL);
2762 prepare_update(struct view *view, const char *argv[], const char *dir,
2763 enum format_flags flags)
2766 end_update(view, TRUE);
2767 return init_io_rd(&view->io, argv, dir, flags);
2771 prepare_update_file(struct view *view, const char *name)
2774 end_update(view, TRUE);
2775 return io_open(&view->io, name);
2779 begin_update(struct view *view, bool refresh)
2782 end_update(view, TRUE);
2785 if (!start_io(&view->io))
2789 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2792 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2795 /* Put the current ref_* value to the view title ref
2796 * member. This is needed by the blob view. Most other
2797 * views sets it automatically after loading because the
2798 * first line is a commit line. */
2799 string_copy_rev(view->ref, view->id);
2802 setup_update(view, view->id);
2807 #define ITEM_CHUNK_SIZE 256
2809 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2811 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2812 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2814 if (mem == NULL || num_chunks != num_chunks_new) {
2815 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2816 mem = realloc(mem, *size * item_size);
2822 static struct line *
2823 realloc_lines(struct view *view, size_t line_size)
2825 size_t alloc = view->line_alloc;
2826 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2827 sizeof(*view->line));
2833 view->line_alloc = alloc;
2838 update_view(struct view *view)
2840 char out_buffer[BUFSIZ * 2];
2842 /* Clear the view and redraw everything since the tree sorting
2843 * might have rearranged things. */
2844 bool redraw = view->lines == 0;
2845 bool can_read = TRUE;
2850 if (!io_can_read(view->pipe)) {
2851 if (view->lines == 0 && view_is_displayed(view)) {
2852 time_t secs = time(NULL) - view->start_time;
2854 if (secs > 1 && secs > view->update_secs) {
2855 if (view->update_secs == 0)
2857 update_view_title(view);
2858 view->update_secs = secs;
2864 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2865 if (opt_iconv != ICONV_NONE) {
2866 ICONV_CONST char *inbuf = line;
2867 size_t inlen = strlen(line) + 1;
2869 char *outbuf = out_buffer;
2870 size_t outlen = sizeof(out_buffer);
2874 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2875 if (ret != (size_t) -1)
2879 if (!view->ops->read(view, line)) {
2880 report("Allocation failure");
2881 end_update(view, TRUE);
2887 unsigned long lines = view->lines;
2890 for (digits = 0; lines; digits++)
2893 /* Keep the displayed view in sync with line number scaling. */
2894 if (digits != view->digits) {
2895 view->digits = digits;
2896 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2901 if (io_error(view->pipe)) {
2902 report("Failed to read: %s", io_strerror(view->pipe));
2903 end_update(view, TRUE);
2905 } else if (io_eof(view->pipe)) {
2907 end_update(view, FALSE);
2910 if (restore_view_position(view))
2913 if (!view_is_displayed(view))
2917 redraw_view_from(view, 0);
2919 redraw_view_dirty(view);
2921 /* Update the title _after_ the redraw so that if the redraw picks up a
2922 * commit reference in view->ref it'll be available here. */
2923 update_view_title(view);
2927 static struct line *
2928 add_line_data(struct view *view, void *data, enum line_type type)
2932 if (!realloc_lines(view, view->lines + 1))
2935 line = &view->line[view->lines++];
2936 memset(line, 0, sizeof(*line));
2944 static struct line *
2945 add_line_text(struct view *view, const char *text, enum line_type type)
2947 char *data = text ? strdup(text) : NULL;
2949 return data ? add_line_data(view, data, type) : NULL;
2952 static struct line *
2953 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2955 char buf[SIZEOF_STR];
2958 va_start(args, fmt);
2959 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2963 return buf[0] ? add_line_text(view, buf, type) : NULL;
2971 OPEN_DEFAULT = 0, /* Use default view switching. */
2972 OPEN_SPLIT = 1, /* Split current view. */
2973 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2974 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2975 OPEN_PREPARED = 32, /* Open already prepared command. */
2979 open_view(struct view *prev, enum request request, enum open_flags flags)
2981 bool split = !!(flags & OPEN_SPLIT);
2982 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2983 bool nomaximize = !!(flags & OPEN_REFRESH);
2984 struct view *view = VIEW(request);
2985 int nviews = displayed_views();
2986 struct view *base_view = display[0];
2988 if (view == prev && nviews == 1 && !reload) {
2989 report("Already in %s view", view->name);
2993 if (view->git_dir && !opt_git_dir[0]) {
2994 report("The %s view is disabled in pager view", view->name);
3001 } else if (!nomaximize) {
3002 /* Maximize the current view. */
3003 memset(display, 0, sizeof(display));
3005 display[current_view] = view;
3008 /* Resize the view when switching between split- and full-screen,
3009 * or when switching between two different full-screen views. */
3010 if (nviews != displayed_views() ||
3011 (nviews == 1 && base_view != display[0]))
3014 if (view->ops->open) {
3016 end_update(view, TRUE);
3017 if (!view->ops->open(view)) {
3018 report("Failed to load %s view", view->name);
3021 restore_view_position(view);
3023 } else if ((reload || strcmp(view->vid, view->id)) &&
3024 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
3025 report("Failed to load %s view", view->name);
3029 if (split && prev->lineno - prev->offset >= prev->height) {
3030 /* Take the title line into account. */
3031 int lines = prev->lineno - prev->offset - prev->height + 1;
3033 /* Scroll the view that was split if the current line is
3034 * outside the new limited view. */
3035 do_scroll_view(prev, lines);
3038 if (prev && view != prev) {
3040 /* "Blur" the previous view. */
3041 update_view_title(prev);
3044 view->parent = prev;
3047 if (view->pipe && view->lines == 0) {
3048 /* Clear the old view and let the incremental updating refill
3051 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
3053 } else if (view_is_displayed(view)) {
3060 open_external_viewer(const char *argv[], const char *dir)
3062 def_prog_mode(); /* save current tty modes */
3063 endwin(); /* restore original tty modes */
3064 run_io_fg(argv, dir);
3065 fprintf(stderr, "Press Enter to continue");
3068 redraw_display(TRUE);
3072 open_mergetool(const char *file)
3074 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
3076 open_external_viewer(mergetool_argv, opt_cdup);
3080 open_editor(bool from_root, const char *file)
3082 const char *editor_argv[] = { "vi", file, NULL };
3085 editor = getenv("GIT_EDITOR");
3086 if (!editor && *opt_editor)
3087 editor = opt_editor;
3089 editor = getenv("VISUAL");
3091 editor = getenv("EDITOR");
3095 editor_argv[0] = editor;
3096 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3100 open_run_request(enum request request)
3102 struct run_request *req = get_run_request(request);
3103 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3106 report("Unknown run request");
3110 if (format_argv(argv, req->argv, FORMAT_ALL))
3111 open_external_viewer(argv, NULL);
3116 * User request switch noodle
3120 view_driver(struct view *view, enum request request)
3124 if (request == REQ_NONE) {
3129 if (request > REQ_NONE) {
3130 open_run_request(request);
3131 /* FIXME: When all views can refresh always do this. */
3132 if (view == VIEW(REQ_VIEW_STATUS) ||
3133 view == VIEW(REQ_VIEW_MAIN) ||
3134 view == VIEW(REQ_VIEW_LOG) ||
3135 view == VIEW(REQ_VIEW_STAGE))
3136 request = REQ_REFRESH;
3141 if (view && view->lines) {
3142 request = view->ops->request(view, request, &view->line[view->lineno]);
3143 if (request == REQ_NONE)
3150 case REQ_MOVE_PAGE_UP:
3151 case REQ_MOVE_PAGE_DOWN:
3152 case REQ_MOVE_FIRST_LINE:
3153 case REQ_MOVE_LAST_LINE:
3154 move_view(view, request);
3157 case REQ_SCROLL_LEFT:
3158 case REQ_SCROLL_RIGHT:
3159 case REQ_SCROLL_LINE_DOWN:
3160 case REQ_SCROLL_LINE_UP:
3161 case REQ_SCROLL_PAGE_DOWN:
3162 case REQ_SCROLL_PAGE_UP:
3163 scroll_view(view, request);
3166 case REQ_VIEW_BLAME:
3168 report("No file chosen, press %s to open tree view",
3169 get_key(REQ_VIEW_TREE));
3172 open_view(view, request, OPEN_DEFAULT);
3177 report("No file chosen, press %s to open tree view",
3178 get_key(REQ_VIEW_TREE));
3181 open_view(view, request, OPEN_DEFAULT);
3184 case REQ_VIEW_PAGER:
3185 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3186 report("No pager content, press %s to run command from prompt",
3187 get_key(REQ_PROMPT));
3190 open_view(view, request, OPEN_DEFAULT);
3193 case REQ_VIEW_STAGE:
3194 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3195 report("No stage content, press %s to open the status view and choose file",
3196 get_key(REQ_VIEW_STATUS));
3199 open_view(view, request, OPEN_DEFAULT);
3202 case REQ_VIEW_STATUS:
3203 if (opt_is_inside_work_tree == FALSE) {
3204 report("The status view requires a working tree");
3207 open_view(view, request, OPEN_DEFAULT);
3215 open_view(view, request, OPEN_DEFAULT);
3220 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3222 if ((view == VIEW(REQ_VIEW_DIFF) &&
3223 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3224 (view == VIEW(REQ_VIEW_DIFF) &&
3225 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3226 (view == VIEW(REQ_VIEW_STAGE) &&
3227 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3228 (view == VIEW(REQ_VIEW_BLOB) &&
3229 view->parent == VIEW(REQ_VIEW_TREE))) {
3232 view = view->parent;
3233 line = view->lineno;
3234 move_view(view, request);
3235 if (view_is_displayed(view))
3236 update_view_title(view);
3237 if (line != view->lineno)
3238 view->ops->request(view, REQ_ENTER,
3239 &view->line[view->lineno]);
3242 move_view(view, request);
3248 int nviews = displayed_views();
3249 int next_view = (current_view + 1) % nviews;
3251 if (next_view == current_view) {
3252 report("Only one view is displayed");
3256 current_view = next_view;
3257 /* Blur out the title of the previous view. */
3258 update_view_title(view);
3263 report("Refreshing is not yet supported for the %s view", view->name);
3267 if (displayed_views() == 2)
3268 maximize_view(view);
3271 case REQ_TOGGLE_LINENO:
3272 toggle_view_option(&opt_line_number, "line numbers");
3275 case REQ_TOGGLE_DATE:
3276 toggle_view_option(&opt_date, "date display");
3279 case REQ_TOGGLE_AUTHOR:
3280 toggle_view_option(&opt_author, "author display");
3283 case REQ_TOGGLE_REV_GRAPH:
3284 toggle_view_option(&opt_rev_graph, "revision graph display");
3287 case REQ_TOGGLE_REFS:
3288 toggle_view_option(&opt_show_refs, "reference display");
3292 case REQ_SEARCH_BACK:
3293 search_view(view, request);
3298 find_next(view, request);
3301 case REQ_STOP_LOADING:
3302 for (i = 0; i < ARRAY_SIZE(views); i++) {
3305 report("Stopped loading the %s view", view->name),
3306 end_update(view, TRUE);
3310 case REQ_SHOW_VERSION:
3311 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3314 case REQ_SCREEN_REDRAW:
3315 redraw_display(TRUE);
3319 report("Nothing to edit");
3323 report("Nothing to enter");
3326 case REQ_VIEW_CLOSE:
3327 /* XXX: Mark closed views by letting view->parent point to the
3328 * view itself. Parents to closed view should never be
3331 view->parent->parent != view->parent) {
3332 maximize_view(view->parent);
3333 view->parent = view;
3341 report("Unknown key, press 'h' for help");
3350 * View backend utilities
3354 parse_timezone(time_t *time, const char *zone)
3358 tz = ('0' - zone[1]) * 60 * 60 * 10;
3359 tz += ('0' - zone[2]) * 60 * 60;
3360 tz += ('0' - zone[3]) * 60;
3361 tz += ('0' - zone[4]);
3369 /* Parse author lines where the name may be empty:
3370 * author <email@address.tld> 1138474660 +0100
3373 parse_author_line(char *ident, char *author, size_t authorsize, struct tm *tm)
3375 char *nameend = strchr(ident, '<');
3376 char *emailend = strchr(ident, '>');
3378 if (nameend && emailend)
3379 *nameend = *emailend = 0;
3380 ident = chomp_string(ident);
3383 ident = chomp_string(nameend + 1);
3388 string_ncopy_do(author, authorsize, ident, strlen(ident));
3390 /* Parse epoch and timezone */
3391 if (emailend && emailend[1] == ' ') {
3392 char *secs = emailend + 2;
3393 char *zone = strchr(secs, ' ');
3394 time_t time = (time_t) atol(secs);
3396 if (zone && strlen(zone) == STRING_SIZE(" +0700"))
3397 parse_timezone(&time, zone + 1);
3399 gmtime_r(&time, tm);
3403 static enum input_status
3404 select_commit_parent_handler(void *data, char *buf, int c)
3406 size_t parents = *(size_t *) data;
3413 parent = atoi(buf) * 10;
3416 if (parent > parents)
3422 select_commit_parent(const char *id, char rev[SIZEOF_REV], const char *path)
3424 char buf[SIZEOF_STR * 4];
3425 const char *revlist_argv[] = {
3426 "git", "rev-list", "-1", "--parents", id, "--", path, NULL
3430 if (!run_io_buf(revlist_argv, buf, sizeof(buf)) ||
3431 !*chomp_string(buf) ||
3432 (parents = (strlen(buf) / 40) - 1) < 0) {
3433 report("Failed to get parent information");
3436 } else if (parents == 0) {
3438 report("Path '%s' does not exist in the parent", path);
3440 report("The selected commit has no parents");
3445 char prompt[SIZEOF_STR];
3448 if (!string_format(prompt, "Which parent? [1..%d] ", parents))
3450 result = prompt_input(prompt, select_commit_parent_handler, &parents);
3453 parents = atoi(result);
3456 string_copy_rev(rev, &buf[41 * parents]);
3465 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3467 char text[SIZEOF_STR];
3469 if (opt_line_number && draw_lineno(view, lineno))
3472 string_expand(text, sizeof(text), line->data, opt_tab_size);
3473 draw_text(view, line->type, text, TRUE);
3478 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3480 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3481 char refbuf[SIZEOF_STR];
3484 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3485 ref = chomp_string(refbuf);
3490 /* This is the only fatal call, since it can "corrupt" the buffer. */
3491 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3498 add_pager_refs(struct view *view, struct line *line)
3500 char buf[SIZEOF_STR];
3501 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3503 size_t bufpos = 0, refpos = 0;
3504 const char *sep = "Refs: ";
3505 bool is_tag = FALSE;
3507 assert(line->type == LINE_COMMIT);
3509 refs = get_refs(commit_id);
3511 if (view == VIEW(REQ_VIEW_DIFF))
3512 goto try_add_describe_ref;
3517 struct ref *ref = refs[refpos];
3518 const char *fmt = ref->tag ? "%s[%s]" :
3519 ref->remote ? "%s<%s>" : "%s%s";
3521 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3526 } while (refs[refpos++]->next);
3528 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3529 try_add_describe_ref:
3530 /* Add <tag>-g<commit_id> "fake" reference. */
3531 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3538 add_line_text(view, buf, LINE_PP_REFS);
3542 pager_read(struct view *view, char *data)
3549 line = add_line_text(view, data, get_line_type(data));
3553 if (line->type == LINE_COMMIT &&
3554 (view == VIEW(REQ_VIEW_DIFF) ||
3555 view == VIEW(REQ_VIEW_LOG)))
3556 add_pager_refs(view, line);
3562 pager_request(struct view *view, enum request request, struct line *line)
3566 if (request != REQ_ENTER)
3569 if (line->type == LINE_COMMIT &&
3570 (view == VIEW(REQ_VIEW_LOG) ||
3571 view == VIEW(REQ_VIEW_PAGER))) {
3572 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3576 /* Always scroll the view even if it was split. That way
3577 * you can use Enter to scroll through the log view and
3578 * split open each commit diff. */
3579 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3581 /* FIXME: A minor workaround. Scrolling the view will call report("")
3582 * but if we are scrolling a non-current view this won't properly
3583 * update the view title. */
3585 update_view_title(view);
3591 pager_grep(struct view *view, struct line *line)
3594 char *text = line->data;
3599 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3606 pager_select(struct view *view, struct line *line)
3608 if (line->type == LINE_COMMIT) {
3609 char *text = (char *)line->data + STRING_SIZE("commit ");
3611 if (view != VIEW(REQ_VIEW_PAGER))
3612 string_copy_rev(view->ref, text);
3613 string_copy_rev(ref_commit, text);
3617 static struct view_ops pager_ops = {
3628 static const char *log_argv[SIZEOF_ARG] = {
3629 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3633 log_request(struct view *view, enum request request, struct line *line)
3638 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3641 return pager_request(view, request, line);
3645 static struct view_ops log_ops = {
3656 static const char *diff_argv[SIZEOF_ARG] = {
3657 "git", "show", "--pretty=fuller", "--no-color", "--root",
3658 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3661 static struct view_ops diff_ops = {
3677 help_open(struct view *view)
3679 char buf[SIZEOF_STR];
3683 if (view->lines > 0)
3686 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3688 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3691 if (req_info[i].request == REQ_NONE)
3694 if (!req_info[i].request) {
3695 add_line_text(view, "", LINE_DEFAULT);
3696 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3700 key = get_key(req_info[i].request);
3702 key = "(no key defined)";
3704 for (bufpos = 0; bufpos <= req_info[i].namelen; bufpos++) {
3705 buf[bufpos] = tolower(req_info[i].name[bufpos]);
3706 if (buf[bufpos] == '_')
3710 add_line_format(view, LINE_DEFAULT, " %-25s %-20s %s",
3711 key, buf, req_info[i].help);
3715 add_line_text(view, "", LINE_DEFAULT);
3716 add_line_text(view, "External commands:", LINE_DEFAULT);
3719 for (i = 0; i < run_requests; i++) {
3720 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3727 key = get_key_name(req->key);
3729 key = "(no key defined)";
3731 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3732 if (!string_format_from(buf, &bufpos, "%s%s",
3733 argc ? " " : "", req->argv[argc]))
3736 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3737 keymap_table[req->keymap].name, key, buf);
3743 static struct view_ops help_ops = {
3759 struct tree_stack_entry {
3760 struct tree_stack_entry *prev; /* Entry below this in the stack */
3761 unsigned long lineno; /* Line number to restore */
3762 char *name; /* Position of name in opt_path */
3765 /* The top of the path stack. */
3766 static struct tree_stack_entry *tree_stack = NULL;
3767 unsigned long tree_lineno = 0;
3770 pop_tree_stack_entry(void)
3772 struct tree_stack_entry *entry = tree_stack;
3774 tree_lineno = entry->lineno;
3776 tree_stack = entry->prev;
3781 push_tree_stack_entry(const char *name, unsigned long lineno)
3783 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3784 size_t pathlen = strlen(opt_path);
3789 entry->prev = tree_stack;
3790 entry->name = opt_path + pathlen;
3793 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3794 pop_tree_stack_entry();
3798 /* Move the current line to the first tree entry. */
3800 entry->lineno = lineno;
3803 /* Parse output from git-ls-tree(1):
3805 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3808 #define SIZEOF_TREE_ATTR \
3809 STRING_SIZE("100644 blob f931e1d229c3e185caad4449bf5b66ed72462657\t")
3811 #define SIZEOF_TREE_MODE \
3812 STRING_SIZE("100644 ")
3814 #define TREE_ID_OFFSET \
3815 STRING_SIZE("100644 blob ")
3818 char id[SIZEOF_REV];
3820 struct tm time; /* Date from the author ident. */
3821 char author[75]; /* Author of the commit. */
3826 tree_path(struct line *line)
3828 return ((struct tree_entry *) line->data)->name;
3833 tree_compare_entry(struct line *line1, struct line *line2)
3835 if (line1->type != line2->type)
3836 return line1->type == LINE_TREE_DIR ? -1 : 1;
3837 return strcmp(tree_path(line1), tree_path(line2));
3840 static struct line *
3841 tree_entry(struct view *view, enum line_type type, const char *path,
3842 const char *mode, const char *id)
3844 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3845 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3847 if (!entry || !line) {
3852 strncpy(entry->name, path, strlen(path));
3854 entry->mode = strtoul(mode, NULL, 8);
3856 string_copy_rev(entry->id, id);
3862 tree_read_date(struct view *view, char *text, bool *read_date)
3864 static char author_name[SIZEOF_STR];
3865 static struct tm author_time;
3867 if (!text && *read_date) {
3872 char *path = *opt_path ? opt_path : ".";
3873 /* Find next entry to process */
3874 const char *log_file[] = {
3875 "git", "log", "--no-color", "--pretty=raw",
3876 "--cc", "--raw", view->id, "--", path, NULL
3881 tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL);
3882 report("Tree is empty");
3886 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3887 report("Failed to load tree data");
3891 done_io(view->pipe);
3896 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3897 parse_author_line(text + STRING_SIZE("author "),
3898 author_name, sizeof(author_name), &author_time);
3900 } else if (*text == ':') {
3902 size_t annotated = 1;
3905 pos = strchr(text, '\t');
3909 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3910 text += strlen(opt_prefix);
3911 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3912 text += strlen(opt_path);
3913 pos = strchr(text, '/');
3917 for (i = 1; i < view->lines; i++) {
3918 struct line *line = &view->line[i];
3919 struct tree_entry *entry = line->data;
3921 annotated += !!*entry->author;
3922 if (*entry->author || strcmp(entry->name, text))
3925 string_copy(entry->author, author_name);
3926 memcpy(&entry->time, &author_time, sizeof(entry->time));
3931 if (annotated == view->lines)
3932 kill_io(view->pipe);
3938 tree_read(struct view *view, char *text)
3940 static bool read_date = FALSE;
3941 struct tree_entry *data;
3942 struct line *entry, *line;
3943 enum line_type type;
3944 size_t textlen = text ? strlen(text) : 0;
3945 char *path = text + SIZEOF_TREE_ATTR;
3947 if (read_date || !text)
3948 return tree_read_date(view, text, &read_date);
3950 if (textlen <= SIZEOF_TREE_ATTR)
3952 if (view->lines == 0 &&
3953 !tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL))
3956 /* Strip the path part ... */
3958 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3959 size_t striplen = strlen(opt_path);
3961 if (pathlen > striplen)
3962 memmove(path, path + striplen,
3963 pathlen - striplen + 1);
3965 /* Insert "link" to parent directory. */
3966 if (view->lines == 1 &&
3967 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3971 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
3972 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3977 /* Skip "Directory ..." and ".." line. */
3978 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3979 if (tree_compare_entry(line, entry) <= 0)
3982 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3986 for (; line <= entry; line++)
3987 line->dirty = line->cleareol = 1;
3991 if (tree_lineno > view->lineno) {
3992 view->lineno = tree_lineno;
4000 tree_draw(struct view *view, struct line *line, unsigned int lineno)
4002 struct tree_entry *entry = line->data;
4004 if (line->type == LINE_TREE_HEAD) {
4005 if (draw_text(view, line->type, "Directory path /", TRUE))
4008 if (draw_mode(view, entry->mode))
4011 if (opt_author && draw_author(view, entry->author))
4014 if (opt_date && draw_date(view, *entry->author ? &entry->time : NULL))
4017 if (draw_text(view, line->type, entry->name, TRUE))
4025 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
4026 int fd = mkstemp(file);
4029 report("Failed to create temporary file");
4030 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
4031 report("Failed to save blob data to file");
4033 open_editor(FALSE, file);
4039 tree_request(struct view *view, enum request request, struct line *line)
4041 enum open_flags flags;
4044 case REQ_VIEW_BLAME:
4045 if (line->type != LINE_TREE_FILE) {
4046 report("Blame only supported for files");
4050 string_copy(opt_ref, view->vid);
4054 if (line->type != LINE_TREE_FILE) {
4055 report("Edit only supported for files");
4056 } else if (!is_head_commit(view->vid)) {
4059 open_editor(TRUE, opt_file);
4065 /* quit view if at top of tree */
4066 return REQ_VIEW_CLOSE;
4069 line = &view->line[1];
4079 /* Cleanup the stack if the tree view is at a different tree. */
4080 while (!*opt_path && tree_stack)
4081 pop_tree_stack_entry();
4083 switch (line->type) {
4085 /* Depending on whether it is a subdirectory or parent link
4086 * mangle the path buffer. */
4087 if (line == &view->line[1] && *opt_path) {
4088 pop_tree_stack_entry();
4091 const char *basename = tree_path(line);
4093 push_tree_stack_entry(basename, view->lineno);
4096 /* Trees and subtrees share the same ID, so they are not not
4097 * unique like blobs. */
4098 flags = OPEN_RELOAD;
4099 request = REQ_VIEW_TREE;
4102 case LINE_TREE_FILE:
4103 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4104 request = REQ_VIEW_BLOB;
4111 open_view(view, request, flags);
4112 if (request == REQ_VIEW_TREE)
4113 view->lineno = tree_lineno;
4119 tree_select(struct view *view, struct line *line)
4121 struct tree_entry *entry = line->data;
4123 if (line->type == LINE_TREE_FILE) {
4124 string_copy_rev(ref_blob, entry->id);
4125 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4127 } else if (line->type != LINE_TREE_DIR) {
4131 string_copy_rev(view->ref, entry->id);
4134 static const char *tree_argv[SIZEOF_ARG] = {
4135 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4138 static struct view_ops tree_ops = {
4150 blob_read(struct view *view, char *line)
4154 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4158 blob_request(struct view *view, enum request request, struct line *line)
4165 return pager_request(view, request, line);
4169 static const char *blob_argv[SIZEOF_ARG] = {
4170 "git", "cat-file", "blob", "%(blob)", NULL
4173 static struct view_ops blob_ops = {
4187 * Loading the blame view is a two phase job:
4189 * 1. File content is read either using opt_file from the
4190 * filesystem or using git-cat-file.
4191 * 2. Then blame information is incrementally added by
4192 * reading output from git-blame.
4195 static const char *blame_head_argv[] = {
4196 "git", "blame", "--incremental", "--", "%(file)", NULL
4199 static const char *blame_ref_argv[] = {
4200 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4203 static const char *blame_cat_file_argv[] = {
4204 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4207 struct blame_commit {
4208 char id[SIZEOF_REV]; /* SHA1 ID. */
4209 char title[128]; /* First line of the commit message. */
4210 char author[75]; /* Author of the commit. */
4211 struct tm time; /* Date from the author ident. */
4212 char filename[128]; /* Name of file. */
4213 bool has_previous; /* Was a "previous" line detected. */
4217 struct blame_commit *commit;
4218 unsigned long lineno;
4223 blame_open(struct view *view)
4225 if (*opt_ref || !io_open(&view->io, opt_file)) {
4226 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4230 setup_update(view, opt_file);
4231 string_format(view->ref, "%s ...", opt_file);
4236 static struct blame_commit *
4237 get_blame_commit(struct view *view, const char *id)
4241 for (i = 0; i < view->lines; i++) {
4242 struct blame *blame = view->line[i].data;
4247 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4248 return blame->commit;
4252 struct blame_commit *commit = calloc(1, sizeof(*commit));
4255 string_ncopy(commit->id, id, SIZEOF_REV);
4261 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4263 const char *pos = *posref;
4266 pos = strchr(pos + 1, ' ');
4267 if (!pos || !isdigit(pos[1]))
4269 *number = atoi(pos + 1);
4270 if (*number < min || *number > max)
4277 static struct blame_commit *
4278 parse_blame_commit(struct view *view, const char *text, int *blamed)
4280 struct blame_commit *commit;
4281 struct blame *blame;
4282 const char *pos = text + SIZEOF_REV - 2;
4283 size_t orig_lineno = 0;
4287 if (strlen(text) <= SIZEOF_REV || pos[1] != ' ')
4290 if (!parse_number(&pos, &orig_lineno, 1, 9999999) ||
4291 !parse_number(&pos, &lineno, 1, view->lines) ||
4292 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4295 commit = get_blame_commit(view, text);
4301 struct line *line = &view->line[lineno + group - 1];
4304 blame->commit = commit;
4305 blame->lineno = orig_lineno + group - 1;
4313 blame_read_file(struct view *view, const char *line, bool *read_file)
4316 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4319 if (view->lines == 0 && !view->parent)
4320 die("No blame exist for %s", view->vid);
4322 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4323 report("Failed to load blame data");
4327 done_io(view->pipe);
4333 size_t linelen = strlen(line);
4334 struct blame *blame = malloc(sizeof(*blame) + linelen);
4339 blame->commit = NULL;
4340 strncpy(blame->text, line, linelen);
4341 blame->text[linelen] = 0;
4342 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4347 match_blame_header(const char *name, char **line)
4349 size_t namelen = strlen(name);
4350 bool matched = !strncmp(name, *line, namelen);
4359 blame_read(struct view *view, char *line)
4361 static struct blame_commit *commit = NULL;
4362 static int blamed = 0;
4363 static time_t author_time;
4364 static bool read_file = TRUE;
4367 return blame_read_file(view, line, &read_file);
4374 string_format(view->ref, "%s", view->vid);
4375 if (view_is_displayed(view)) {
4376 update_view_title(view);
4377 redraw_view_from(view, 0);
4383 commit = parse_blame_commit(view, line, &blamed);
4384 string_format(view->ref, "%s %2d%%", view->vid,
4385 view->lines ? blamed * 100 / view->lines : 0);
4387 } else if (match_blame_header("author ", &line)) {
4388 string_ncopy(commit->author, line, strlen(line));
4390 } else if (match_blame_header("author-time ", &line)) {
4391 author_time = (time_t) atol(line);
4393 } else if (match_blame_header("author-tz ", &line)) {
4394 parse_timezone(&author_time, line);
4395 gmtime_r(&author_time, &commit->time);
4397 } else if (match_blame_header("summary ", &line)) {
4398 string_ncopy(commit->title, line, strlen(line));
4400 } else if (match_blame_header("previous ", &line)) {
4401 commit->has_previous = TRUE;
4403 } else if (match_blame_header("filename ", &line)) {
4404 string_ncopy(commit->filename, line, strlen(line));
4412 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4414 struct blame *blame = line->data;
4415 struct tm *time = NULL;
4416 const char *id = NULL, *author = NULL;
4417 char text[SIZEOF_STR];
4419 if (blame->commit && *blame->commit->filename) {
4420 id = blame->commit->id;
4421 author = blame->commit->author;
4422 time = &blame->commit->time;
4425 if (opt_date && draw_date(view, time))
4428 if (opt_author && draw_author(view, author))
4431 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4434 if (draw_lineno(view, lineno))
4437 string_expand(text, sizeof(text), blame->text, opt_tab_size);
4438 draw_text(view, LINE_DEFAULT, text, TRUE);
4443 check_blame_commit(struct blame *blame, bool check_null_id)
4446 report("Commit data not loaded yet");
4447 else if (check_null_id && !strcmp(blame->commit->id, NULL_ID))
4448 report("No commit exist for the selected line");
4455 setup_blame_parent_line(struct view *view, struct blame *blame)
4457 const char *diff_tree_argv[] = {
4458 "git", "diff-tree", "-U0", blame->commit->id,
4459 "--", blame->commit->filename, NULL
4462 int parent_lineno = -1;
4463 int blamed_lineno = -1;
4466 if (!run_io(&io, diff_tree_argv, NULL, IO_RD))
4469 while ((line = io_get(&io, '\n', TRUE))) {
4471 char *pos = strchr(line, '+');
4473 parent_lineno = atoi(line + 4);
4475 blamed_lineno = atoi(pos + 1);
4477 } else if (*line == '+' && parent_lineno != -1) {
4478 if (blame->lineno == blamed_lineno - 1 &&
4479 !strcmp(blame->text, line + 1)) {
4480 view->lineno = parent_lineno ? parent_lineno - 1 : 0;
4491 blame_request(struct view *view, enum request request, struct line *line)
4493 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4494 struct blame *blame = line->data;
4497 case REQ_VIEW_BLAME:
4498 if (check_blame_commit(blame, TRUE)) {
4499 string_copy(opt_ref, blame->commit->id);
4500 string_copy(opt_file, blame->commit->filename);
4502 view->lineno = blame->lineno;
4503 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4508 if (check_blame_commit(blame, TRUE) &&
4509 select_commit_parent(blame->commit->id, opt_ref,
4510 blame->commit->filename)) {
4511 string_copy(opt_file, blame->commit->filename);
4512 setup_blame_parent_line(view, blame);
4513 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4518 if (!check_blame_commit(blame, FALSE))
4521 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4522 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4525 if (!strcmp(blame->commit->id, NULL_ID)) {
4526 struct view *diff = VIEW(REQ_VIEW_DIFF);
4527 const char *diff_index_argv[] = {
4528 "git", "diff-index", "--root", "--patch-with-stat",
4529 "-C", "-M", "HEAD", "--", view->vid, NULL
4532 if (!blame->commit->has_previous) {
4533 diff_index_argv[1] = "diff";
4534 diff_index_argv[2] = "--no-color";
4535 diff_index_argv[6] = "--";
4536 diff_index_argv[7] = "/dev/null";
4539 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4540 report("Failed to allocate diff command");
4543 flags |= OPEN_PREPARED;
4546 open_view(view, REQ_VIEW_DIFF, flags);
4547 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4548 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4559 blame_grep(struct view *view, struct line *line)
4561 struct blame *blame = line->data;
4562 struct blame_commit *commit = blame->commit;
4565 #define MATCH(text, on) \
4566 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4569 char buf[DATE_COLS + 1];
4571 if (MATCH(commit->title, 1) ||
4572 MATCH(commit->author, opt_author) ||
4573 MATCH(commit->id, opt_date))
4576 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4581 return MATCH(blame->text, 1);
4587 blame_select(struct view *view, struct line *line)
4589 struct blame *blame = line->data;
4590 struct blame_commit *commit = blame->commit;
4595 if (!strcmp(commit->id, NULL_ID))
4596 string_ncopy(ref_commit, "HEAD", 4);
4598 string_copy_rev(ref_commit, commit->id);
4601 static struct view_ops blame_ops = {
4620 char rev[SIZEOF_REV];
4621 char name[SIZEOF_STR];
4625 char rev[SIZEOF_REV];
4626 char name[SIZEOF_STR];
4630 static char status_onbranch[SIZEOF_STR];
4631 static struct status stage_status;
4632 static enum line_type stage_line_type;
4633 static size_t stage_chunks;
4634 static int *stage_chunk;
4636 /* This should work even for the "On branch" line. */
4638 status_has_none(struct view *view, struct line *line)
4640 return line < view->line + view->lines && !line[1].data;
4643 /* Get fields from the diff line:
4644 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4647 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4649 const char *old_mode = buf + 1;
4650 const char *new_mode = buf + 8;
4651 const char *old_rev = buf + 15;
4652 const char *new_rev = buf + 56;
4653 const char *status = buf + 97;
4656 old_mode[-1] != ':' ||
4657 new_mode[-1] != ' ' ||
4658 old_rev[-1] != ' ' ||
4659 new_rev[-1] != ' ' ||
4663 file->status = *status;
4665 string_copy_rev(file->old.rev, old_rev);
4666 string_copy_rev(file->new.rev, new_rev);
4668 file->old.mode = strtoul(old_mode, NULL, 8);
4669 file->new.mode = strtoul(new_mode, NULL, 8);
4671 file->old.name[0] = file->new.name[0] = 0;
4677 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4679 struct status *unmerged = NULL;
4683 if (!run_io(&io, argv, NULL, IO_RD))
4686 add_line_data(view, NULL, type);
4688 while ((buf = io_get(&io, 0, TRUE))) {
4689 struct status *file = unmerged;
4692 file = calloc(1, sizeof(*file));
4693 if (!file || !add_line_data(view, file, type))
4697 /* Parse diff info part. */
4699 file->status = status;
4701 string_copy(file->old.rev, NULL_ID);
4703 } else if (!file->status || file == unmerged) {
4704 if (!status_get_diff(file, buf, strlen(buf)))
4707 buf = io_get(&io, 0, TRUE);
4711 /* Collapse all modified entries that follow an
4712 * associated unmerged entry. */
4713 if (unmerged == file) {
4714 unmerged->status = 'U';
4716 } else if (file->status == 'U') {
4721 /* Grab the old name for rename/copy. */
4722 if (!*file->old.name &&
4723 (file->status == 'R' || file->status == 'C')) {
4724 string_ncopy(file->old.name, buf, strlen(buf));
4726 buf = io_get(&io, 0, TRUE);
4731 /* git-ls-files just delivers a NUL separated list of
4732 * file names similar to the second half of the
4733 * git-diff-* output. */
4734 string_ncopy(file->new.name, buf, strlen(buf));
4735 if (!*file->old.name)
4736 string_copy(file->old.name, file->new.name);
4740 if (io_error(&io)) {
4746 if (!view->line[view->lines - 1].data)
4747 add_line_data(view, NULL, LINE_STAT_NONE);
4753 /* Don't show unmerged entries in the staged section. */
4754 static const char *status_diff_index_argv[] = {
4755 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4756 "--cached", "-M", "HEAD", NULL
4759 static const char *status_diff_files_argv[] = {
4760 "git", "diff-files", "-z", NULL
4763 static const char *status_list_other_argv[] = {
4764 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4767 static const char *status_list_no_head_argv[] = {
4768 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4771 static const char *update_index_argv[] = {
4772 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4775 /* Restore the previous line number to stay in the context or select a
4776 * line with something that can be updated. */
4778 status_restore(struct view *view)
4780 if (view->p_lineno >= view->lines)
4781 view->p_lineno = view->lines - 1;
4782 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4784 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4787 /* If the above fails, always skip the "On branch" line. */
4788 if (view->p_lineno < view->lines)
4789 view->lineno = view->p_lineno;
4793 if (view->lineno < view->offset)
4794 view->offset = view->lineno;
4795 else if (view->offset + view->height <= view->lineno)
4796 view->offset = view->lineno - view->height + 1;
4798 view->p_restore = FALSE;
4802 status_update_onbranch(void)
4804 static const char *paths[][2] = {
4805 { "rebase-apply/rebasing", "Rebasing" },
4806 { "rebase-apply/applying", "Applying mailbox" },
4807 { "rebase-apply/", "Rebasing mailbox" },
4808 { "rebase-merge/interactive", "Interactive rebase" },
4809 { "rebase-merge/", "Rebase merge" },
4810 { "MERGE_HEAD", "Merging" },
4811 { "BISECT_LOG", "Bisecting" },
4812 { "HEAD", "On branch" },
4814 char buf[SIZEOF_STR];
4818 if (is_initial_commit()) {
4819 string_copy(status_onbranch, "Initial commit");
4823 for (i = 0; i < ARRAY_SIZE(paths); i++) {
4824 char *head = opt_head;
4826 if (!string_format(buf, "%s/%s", opt_git_dir, paths[i][0]) ||
4827 lstat(buf, &stat) < 0)
4833 if (string_format(buf, "%s/rebase-merge/head-name", opt_git_dir) &&
4834 io_open(&io, buf) &&
4835 io_read_buf(&io, buf, sizeof(buf))) {
4836 head = chomp_string(buf);
4837 if (!prefixcmp(head, "refs/heads/"))
4838 head += STRING_SIZE("refs/heads/");
4842 if (!string_format(status_onbranch, "%s %s", paths[i][1], head))
4843 string_copy(status_onbranch, opt_head);
4847 string_copy(status_onbranch, "Not currently on any branch");
4850 /* First parse staged info using git-diff-index(1), then parse unstaged
4851 * info using git-diff-files(1), and finally untracked files using
4852 * git-ls-files(1). */
4854 status_open(struct view *view)
4858 add_line_data(view, NULL, LINE_STAT_HEAD);
4859 status_update_onbranch();
4861 run_io_bg(update_index_argv);
4863 if (is_initial_commit()) {
4864 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4866 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4870 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4871 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4874 /* Restore the exact position or use the specialized restore
4876 if (!view->p_restore)
4877 status_restore(view);
4882 status_draw(struct view *view, struct line *line, unsigned int lineno)
4884 struct status *status = line->data;
4885 enum line_type type;
4889 switch (line->type) {
4890 case LINE_STAT_STAGED:
4891 type = LINE_STAT_SECTION;
4892 text = "Changes to be committed:";
4895 case LINE_STAT_UNSTAGED:
4896 type = LINE_STAT_SECTION;
4897 text = "Changed but not updated:";
4900 case LINE_STAT_UNTRACKED:
4901 type = LINE_STAT_SECTION;
4902 text = "Untracked files:";
4905 case LINE_STAT_NONE:
4906 type = LINE_DEFAULT;
4907 text = " (no files)";
4910 case LINE_STAT_HEAD:
4911 type = LINE_STAT_HEAD;
4912 text = status_onbranch;
4919 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4921 buf[0] = status->status;
4922 if (draw_text(view, line->type, buf, TRUE))
4924 type = LINE_DEFAULT;
4925 text = status->new.name;
4928 draw_text(view, type, text, TRUE);
4933 status_load_error(struct view *view, struct view *stage, const char *path)
4935 if (displayed_views() == 2 || display[current_view] != view)
4936 maximize_view(view);
4937 report("Failed to load '%s': %s", path, io_strerror(&stage->io));
4942 status_enter(struct view *view, struct line *line)
4944 struct status *status = line->data;
4945 const char *oldpath = status ? status->old.name : NULL;
4946 /* Diffs for unmerged entries are empty when passing the new
4947 * path, so leave it empty. */
4948 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4950 enum open_flags split;
4951 struct view *stage = VIEW(REQ_VIEW_STAGE);
4953 if (line->type == LINE_STAT_NONE ||
4954 (!status && line[1].type == LINE_STAT_NONE)) {
4955 report("No file to diff");
4959 switch (line->type) {
4960 case LINE_STAT_STAGED:
4961 if (is_initial_commit()) {
4962 const char *no_head_diff_argv[] = {
4963 "git", "diff", "--no-color", "--patch-with-stat",
4964 "--", "/dev/null", newpath, NULL
4967 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4968 return status_load_error(view, stage, newpath);
4970 const char *index_show_argv[] = {
4971 "git", "diff-index", "--root", "--patch-with-stat",
4972 "-C", "-M", "--cached", "HEAD", "--",
4973 oldpath, newpath, NULL
4976 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4977 return status_load_error(view, stage, newpath);
4981 info = "Staged changes to %s";
4983 info = "Staged changes";
4986 case LINE_STAT_UNSTAGED:
4988 const char *files_show_argv[] = {
4989 "git", "diff-files", "--root", "--patch-with-stat",
4990 "-C", "-M", "--", oldpath, newpath, NULL
4993 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4994 return status_load_error(view, stage, newpath);
4996 info = "Unstaged changes to %s";
4998 info = "Unstaged changes";
5001 case LINE_STAT_UNTRACKED:
5003 report("No file to show");
5007 if (!suffixcmp(status->new.name, -1, "/")) {
5008 report("Cannot display a directory");
5012 if (!prepare_update_file(stage, newpath))
5013 return status_load_error(view, stage, newpath);
5014 info = "Untracked file %s";
5017 case LINE_STAT_HEAD:
5021 die("line type %d not handled in switch", line->type);
5024 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
5025 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
5026 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
5028 stage_status = *status;
5030 memset(&stage_status, 0, sizeof(stage_status));
5033 stage_line_type = line->type;
5035 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
5042 status_exists(struct status *status, enum line_type type)
5044 struct view *view = VIEW(REQ_VIEW_STATUS);
5045 unsigned long lineno;
5047 for (lineno = 0; lineno < view->lines; lineno++) {
5048 struct line *line = &view->line[lineno];
5049 struct status *pos = line->data;
5051 if (line->type != type)
5053 if (!pos && (!status || !status->status) && line[1].data) {
5054 select_view_line(view, lineno);
5057 if (pos && !strcmp(status->new.name, pos->new.name)) {
5058 select_view_line(view, lineno);
5068 status_update_prepare(struct io *io, enum line_type type)
5070 const char *staged_argv[] = {
5071 "git", "update-index", "-z", "--index-info", NULL
5073 const char *others_argv[] = {
5074 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
5078 case LINE_STAT_STAGED:
5079 return run_io(io, staged_argv, opt_cdup, IO_WR);
5081 case LINE_STAT_UNSTAGED:
5082 return run_io(io, others_argv, opt_cdup, IO_WR);
5084 case LINE_STAT_UNTRACKED:
5085 return run_io(io, others_argv, NULL, IO_WR);
5088 die("line type %d not handled in switch", type);
5094 status_update_write(struct io *io, struct status *status, enum line_type type)
5096 char buf[SIZEOF_STR];
5100 case LINE_STAT_STAGED:
5101 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
5104 status->old.name, 0))
5108 case LINE_STAT_UNSTAGED:
5109 case LINE_STAT_UNTRACKED:
5110 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
5115 die("line type %d not handled in switch", type);
5118 return io_write(io, buf, bufsize);
5122 status_update_file(struct status *status, enum line_type type)
5127 if (!status_update_prepare(&io, type))
5130 result = status_update_write(&io, status, type);
5131 return done_io(&io) && result;
5135 status_update_files(struct view *view, struct line *line)
5137 char buf[sizeof(view->ref)];
5140 struct line *pos = view->line + view->lines;
5144 if (!status_update_prepare(&io, line->type))
5147 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5150 string_copy(buf, view->ref);
5151 for (file = 0, done = 5; result && file < files; line++, file++) {
5152 int almost_done = file * 100 / files;
5154 if (almost_done > done) {
5156 string_format(view->ref, "updating file %u of %u (%d%% done)",
5158 update_view_title(view);
5161 result = status_update_write(&io, line->data, line->type);
5163 string_copy(view->ref, buf);
5165 return done_io(&io) && result;
5169 status_update(struct view *view)
5171 struct line *line = &view->line[view->lineno];
5173 assert(view->lines);
5176 /* This should work even for the "On branch" line. */
5177 if (line < view->line + view->lines && !line[1].data) {
5178 report("Nothing to update");
5182 if (!status_update_files(view, line + 1)) {
5183 report("Failed to update file status");
5187 } else if (!status_update_file(line->data, line->type)) {
5188 report("Failed to update file status");
5196 status_revert(struct status *status, enum line_type type, bool has_none)
5198 if (!status || type != LINE_STAT_UNSTAGED) {
5199 if (type == LINE_STAT_STAGED) {
5200 report("Cannot revert changes to staged files");
5201 } else if (type == LINE_STAT_UNTRACKED) {
5202 report("Cannot revert changes to untracked files");
5203 } else if (has_none) {
5204 report("Nothing to revert");
5206 report("Cannot revert changes to multiple files");
5211 char mode[10] = "100644";
5212 const char *reset_argv[] = {
5213 "git", "update-index", "--cacheinfo", mode,
5214 status->old.rev, status->old.name, NULL
5216 const char *checkout_argv[] = {
5217 "git", "checkout", "--", status->old.name, NULL
5220 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5222 string_format(mode, "%o", status->old.mode);
5223 return (status->status != 'U' || run_io_fg(reset_argv, opt_cdup)) &&
5224 run_io_fg(checkout_argv, opt_cdup);
5229 status_request(struct view *view, enum request request, struct line *line)
5231 struct status *status = line->data;
5234 case REQ_STATUS_UPDATE:
5235 if (!status_update(view))
5239 case REQ_STATUS_REVERT:
5240 if (!status_revert(status, line->type, status_has_none(view, line)))
5244 case REQ_STATUS_MERGE:
5245 if (!status || status->status != 'U') {
5246 report("Merging only possible for files with unmerged status ('U').");
5249 open_mergetool(status->new.name);
5255 if (status->status == 'D') {
5256 report("File has been deleted.");
5260 open_editor(status->status != '?', status->new.name);
5263 case REQ_VIEW_BLAME:
5265 string_copy(opt_file, status->new.name);
5271 /* After returning the status view has been split to
5272 * show the stage view. No further reloading is
5274 return status_enter(view, line);
5277 /* Simply reload the view. */
5284 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5290 status_select(struct view *view, struct line *line)
5292 struct status *status = line->data;
5293 char file[SIZEOF_STR] = "all files";
5297 if (status && !string_format(file, "'%s'", status->new.name))
5300 if (!status && line[1].type == LINE_STAT_NONE)
5303 switch (line->type) {
5304 case LINE_STAT_STAGED:
5305 text = "Press %s to unstage %s for commit";
5308 case LINE_STAT_UNSTAGED:
5309 text = "Press %s to stage %s for commit";
5312 case LINE_STAT_UNTRACKED:
5313 text = "Press %s to stage %s for addition";
5316 case LINE_STAT_HEAD:
5317 case LINE_STAT_NONE:
5318 text = "Nothing to update";
5322 die("line type %d not handled in switch", line->type);
5325 if (status && status->status == 'U') {
5326 text = "Press %s to resolve conflict in %s";
5327 key = get_key(REQ_STATUS_MERGE);
5330 key = get_key(REQ_STATUS_UPDATE);
5333 string_format(view->ref, text, key, file);
5337 status_grep(struct view *view, struct line *line)
5339 struct status *status = line->data;
5340 enum { S_STATUS, S_NAME, S_END } state;
5347 for (state = S_STATUS; state < S_END; state++) {
5351 case S_NAME: text = status->new.name; break;
5353 buf[0] = status->status;
5361 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5368 static struct view_ops status_ops = {
5381 stage_diff_write(struct io *io, struct line *line, struct line *end)
5383 while (line < end) {
5384 if (!io_write(io, line->data, strlen(line->data)) ||
5385 !io_write(io, "\n", 1))
5388 if (line->type == LINE_DIFF_CHUNK ||
5389 line->type == LINE_DIFF_HEADER)
5396 static struct line *
5397 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5399 for (; view->line < line; line--)
5400 if (line->type == type)
5407 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5409 const char *apply_argv[SIZEOF_ARG] = {
5410 "git", "apply", "--whitespace=nowarn", NULL
5412 struct line *diff_hdr;
5416 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5421 apply_argv[argc++] = "--cached";
5422 if (revert || stage_line_type == LINE_STAT_STAGED)
5423 apply_argv[argc++] = "-R";
5424 apply_argv[argc++] = "-";
5425 apply_argv[argc++] = NULL;
5426 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5429 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5430 !stage_diff_write(&io, chunk, view->line + view->lines))
5434 run_io_bg(update_index_argv);
5436 return chunk ? TRUE : FALSE;
5440 stage_update(struct view *view, struct line *line)
5442 struct line *chunk = NULL;
5444 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5445 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5448 if (!stage_apply_chunk(view, chunk, FALSE)) {
5449 report("Failed to apply chunk");
5453 } else if (!stage_status.status) {
5454 view = VIEW(REQ_VIEW_STATUS);
5456 for (line = view->line; line < view->line + view->lines; line++)
5457 if (line->type == stage_line_type)
5460 if (!status_update_files(view, line + 1)) {
5461 report("Failed to update files");
5465 } else if (!status_update_file(&stage_status, stage_line_type)) {
5466 report("Failed to update file");
5474 stage_revert(struct view *view, struct line *line)
5476 struct line *chunk = NULL;
5478 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5479 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5482 if (!prompt_yesno("Are you sure you want to revert changes?"))
5485 if (!stage_apply_chunk(view, chunk, TRUE)) {
5486 report("Failed to revert chunk");
5492 return status_revert(stage_status.status ? &stage_status : NULL,
5493 stage_line_type, FALSE);
5499 stage_next(struct view *view, struct line *line)
5503 if (!stage_chunks) {
5504 static size_t alloc = 0;
5507 for (line = view->line; line < view->line + view->lines; line++) {
5508 if (line->type != LINE_DIFF_CHUNK)
5511 tmp = realloc_items(stage_chunk, &alloc,
5512 stage_chunks, sizeof(*tmp));
5514 report("Allocation failure");
5519 stage_chunk[stage_chunks++] = line - view->line;
5523 for (i = 0; i < stage_chunks; i++) {
5524 if (stage_chunk[i] > view->lineno) {
5525 do_scroll_view(view, stage_chunk[i] - view->lineno);
5526 report("Chunk %d of %d", i + 1, stage_chunks);
5531 report("No next chunk found");
5535 stage_request(struct view *view, enum request request, struct line *line)
5538 case REQ_STATUS_UPDATE:
5539 if (!stage_update(view, line))
5543 case REQ_STATUS_REVERT:
5544 if (!stage_revert(view, line))
5548 case REQ_STAGE_NEXT:
5549 if (stage_line_type == LINE_STAT_UNTRACKED) {
5550 report("File is untracked; press %s to add",
5551 get_key(REQ_STATUS_UPDATE));
5554 stage_next(view, line);
5558 if (!stage_status.new.name[0])
5560 if (stage_status.status == 'D') {
5561 report("File has been deleted.");
5565 open_editor(stage_status.status != '?', stage_status.new.name);
5569 /* Reload everything ... */
5572 case REQ_VIEW_BLAME:
5573 if (stage_status.new.name[0]) {
5574 string_copy(opt_file, stage_status.new.name);
5580 return pager_request(view, request, line);
5586 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5587 open_view(view, REQ_VIEW_STATUS, OPEN_REFRESH);
5589 /* Check whether the staged entry still exists, and close the
5590 * stage view if it doesn't. */
5591 if (!status_exists(&stage_status, stage_line_type)) {
5592 status_restore(VIEW(REQ_VIEW_STATUS));
5593 return REQ_VIEW_CLOSE;
5596 if (stage_line_type == LINE_STAT_UNTRACKED) {
5597 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5598 report("Cannot display a directory");
5602 if (!prepare_update_file(view, stage_status.new.name)) {
5603 report("Failed to open file: %s", strerror(errno));
5607 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5612 static struct view_ops stage_ops = {
5629 char id[SIZEOF_REV]; /* SHA1 ID. */
5630 char title[128]; /* First line of the commit message. */
5631 char author[75]; /* Author of the commit. */
5632 struct tm time; /* Date from the author ident. */
5633 struct ref **refs; /* Repository references. */
5634 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5635 size_t graph_size; /* The width of the graph array. */
5636 bool has_parents; /* Rewritten --parents seen. */
5639 /* Size of rev graph with no "padding" columns */
5640 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5643 struct rev_graph *prev, *next, *parents;
5644 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5646 struct commit *commit;
5648 unsigned int boundary:1;
5651 /* Parents of the commit being visualized. */
5652 static struct rev_graph graph_parents[4];
5654 /* The current stack of revisions on the graph. */
5655 static struct rev_graph graph_stacks[4] = {
5656 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5657 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5658 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5659 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5663 graph_parent_is_merge(struct rev_graph *graph)
5665 return graph->parents->size > 1;
5669 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5671 struct commit *commit = graph->commit;
5673 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5674 commit->graph[commit->graph_size++] = symbol;
5678 clear_rev_graph(struct rev_graph *graph)
5680 graph->boundary = 0;
5681 graph->size = graph->pos = 0;
5682 graph->commit = NULL;
5683 memset(graph->parents, 0, sizeof(*graph->parents));
5687 done_rev_graph(struct rev_graph *graph)
5689 if (graph_parent_is_merge(graph) &&
5690 graph->pos < graph->size - 1 &&
5691 graph->next->size == graph->size + graph->parents->size - 1) {
5692 size_t i = graph->pos + graph->parents->size - 1;
5694 graph->commit->graph_size = i * 2;
5695 while (i < graph->next->size - 1) {
5696 append_to_rev_graph(graph, ' ');
5697 append_to_rev_graph(graph, '\\');
5702 clear_rev_graph(graph);
5706 push_rev_graph(struct rev_graph *graph, const char *parent)
5710 /* "Collapse" duplicate parents lines.
5712 * FIXME: This needs to also update update the drawn graph but
5713 * for now it just serves as a method for pruning graph lines. */
5714 for (i = 0; i < graph->size; i++)
5715 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5718 if (graph->size < SIZEOF_REVITEMS) {
5719 string_copy_rev(graph->rev[graph->size++], parent);
5724 get_rev_graph_symbol(struct rev_graph *graph)
5728 if (graph->boundary)
5729 symbol = REVGRAPH_BOUND;
5730 else if (graph->parents->size == 0)
5731 symbol = REVGRAPH_INIT;
5732 else if (graph_parent_is_merge(graph))
5733 symbol = REVGRAPH_MERGE;
5734 else if (graph->pos >= graph->size)
5735 symbol = REVGRAPH_BRANCH;
5737 symbol = REVGRAPH_COMMIT;
5743 draw_rev_graph(struct rev_graph *graph)
5746 chtype separator, line;
5748 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5749 static struct rev_filler fillers[] = {
5755 chtype symbol = get_rev_graph_symbol(graph);
5756 struct rev_filler *filler;
5759 if (opt_line_graphics)
5760 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5762 filler = &fillers[DEFAULT];
5764 for (i = 0; i < graph->pos; i++) {
5765 append_to_rev_graph(graph, filler->line);
5766 if (graph_parent_is_merge(graph->prev) &&
5767 graph->prev->pos == i)
5768 filler = &fillers[RSHARP];
5770 append_to_rev_graph(graph, filler->separator);
5773 /* Place the symbol for this revision. */
5774 append_to_rev_graph(graph, symbol);
5776 if (graph->prev->size > graph->size)
5777 filler = &fillers[RDIAG];
5779 filler = &fillers[DEFAULT];
5783 for (; i < graph->size; i++) {
5784 append_to_rev_graph(graph, filler->separator);
5785 append_to_rev_graph(graph, filler->line);
5786 if (graph_parent_is_merge(graph->prev) &&
5787 i < graph->prev->pos + graph->parents->size)
5788 filler = &fillers[RSHARP];
5789 if (graph->prev->size > graph->size)
5790 filler = &fillers[LDIAG];
5793 if (graph->prev->size > graph->size) {
5794 append_to_rev_graph(graph, filler->separator);
5795 if (filler->line != ' ')
5796 append_to_rev_graph(graph, filler->line);
5800 /* Prepare the next rev graph */
5802 prepare_rev_graph(struct rev_graph *graph)
5806 /* First, traverse all lines of revisions up to the active one. */
5807 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5808 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5811 push_rev_graph(graph->next, graph->rev[graph->pos]);
5814 /* Interleave the new revision parent(s). */
5815 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5816 push_rev_graph(graph->next, graph->parents->rev[i]);
5818 /* Lastly, put any remaining revisions. */
5819 for (i = graph->pos + 1; i < graph->size; i++)
5820 push_rev_graph(graph->next, graph->rev[i]);
5824 update_rev_graph(struct view *view, struct rev_graph *graph)
5826 /* If this is the finalizing update ... */
5828 prepare_rev_graph(graph);
5830 /* Graph visualization needs a one rev look-ahead,
5831 * so the first update doesn't visualize anything. */
5832 if (!graph->prev->commit)
5835 if (view->lines > 2)
5836 view->line[view->lines - 3].dirty = 1;
5837 if (view->lines > 1)
5838 view->line[view->lines - 2].dirty = 1;
5839 draw_rev_graph(graph->prev);
5840 done_rev_graph(graph->prev->prev);
5848 static const char *main_argv[SIZEOF_ARG] = {
5849 "git", "log", "--no-color", "--pretty=raw", "--parents",
5850 "--topo-order", "%(head)", NULL
5854 main_draw(struct view *view, struct line *line, unsigned int lineno)
5856 struct commit *commit = line->data;
5858 if (!*commit->author)
5861 if (opt_date && draw_date(view, &commit->time))
5864 if (opt_author && draw_author(view, commit->author))
5867 if (opt_rev_graph && commit->graph_size &&
5868 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5871 if (opt_show_refs && commit->refs) {
5875 enum line_type type;
5877 if (commit->refs[i]->head)
5878 type = LINE_MAIN_HEAD;
5879 else if (commit->refs[i]->ltag)
5880 type = LINE_MAIN_LOCAL_TAG;
5881 else if (commit->refs[i]->tag)
5882 type = LINE_MAIN_TAG;
5883 else if (commit->refs[i]->tracked)
5884 type = LINE_MAIN_TRACKED;
5885 else if (commit->refs[i]->remote)
5886 type = LINE_MAIN_REMOTE;
5888 type = LINE_MAIN_REF;
5890 if (draw_text(view, type, "[", TRUE) ||
5891 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5892 draw_text(view, type, "]", TRUE))
5895 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5897 } while (commit->refs[i++]->next);
5900 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5904 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5906 main_read(struct view *view, char *line)
5908 static struct rev_graph *graph = graph_stacks;
5909 enum line_type type;
5910 struct commit *commit;
5915 if (!view->lines && !view->parent)
5916 die("No revisions match the given arguments.");
5917 if (view->lines > 0) {
5918 commit = view->line[view->lines - 1].data;
5919 view->line[view->lines - 1].dirty = 1;
5920 if (!*commit->author) {
5923 graph->commit = NULL;
5926 update_rev_graph(view, graph);
5928 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5929 clear_rev_graph(&graph_stacks[i]);
5933 type = get_line_type(line);
5934 if (type == LINE_COMMIT) {
5935 commit = calloc(1, sizeof(struct commit));
5939 line += STRING_SIZE("commit ");
5941 graph->boundary = 1;
5945 string_copy_rev(commit->id, line);
5946 commit->refs = get_refs(commit->id);
5947 graph->commit = commit;
5948 add_line_data(view, commit, LINE_MAIN_COMMIT);
5950 while ((line = strchr(line, ' '))) {
5952 push_rev_graph(graph->parents, line);
5953 commit->has_parents = TRUE;
5960 commit = view->line[view->lines - 1].data;
5964 if (commit->has_parents)
5966 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5970 parse_author_line(line + STRING_SIZE("author "),
5971 commit->author, sizeof(commit->author),
5973 update_rev_graph(view, graph);
5974 graph = graph->next;
5978 /* Fill in the commit title if it has not already been set. */
5979 if (commit->title[0])
5982 /* Require titles to start with a non-space character at the
5983 * offset used by git log. */
5984 if (strncmp(line, " ", 4))
5987 /* Well, if the title starts with a whitespace character,
5988 * try to be forgiving. Otherwise we end up with no title. */
5989 while (isspace(*line))
5993 /* FIXME: More graceful handling of titles; append "..." to
5994 * shortened titles, etc. */
5996 string_expand(commit->title, sizeof(commit->title), line, 1);
5997 view->line[view->lines - 1].dirty = 1;
6004 main_request(struct view *view, enum request request, struct line *line)
6006 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
6010 open_view(view, REQ_VIEW_DIFF, flags);
6014 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
6024 grep_refs(struct ref **refs, regex_t *regex)
6032 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
6034 } while (refs[i++]->next);
6040 main_grep(struct view *view, struct line *line)
6042 struct commit *commit = line->data;
6043 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
6044 char buf[DATE_COLS + 1];
6047 for (state = S_TITLE; state < S_END; state++) {
6051 case S_TITLE: text = commit->title; break;
6055 text = commit->author;
6060 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
6067 if (grep_refs(commit->refs, view->regex) == TRUE)
6074 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
6082 main_select(struct view *view, struct line *line)
6084 struct commit *commit = line->data;
6086 string_copy_rev(view->ref, commit->id);
6087 string_copy_rev(ref_commit, view->ref);
6090 static struct view_ops main_ops = {
6103 * Unicode / UTF-8 handling
6105 * NOTE: Much of the following code for dealing with Unicode is derived from
6106 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
6107 * src/intl/charset.c from the UTF-8 branch commit elinks-0.11.0-g31f2c28.
6111 unicode_width(unsigned long c)
6114 (c <= 0x115f /* Hangul Jamo */
6117 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
6119 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
6120 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
6121 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
6122 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
6123 || (c >= 0xffe0 && c <= 0xffe6)
6124 || (c >= 0x20000 && c <= 0x2fffd)
6125 || (c >= 0x30000 && c <= 0x3fffd)))
6129 return opt_tab_size;
6134 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
6135 * Illegal bytes are set one. */
6136 static const unsigned char utf8_bytes[256] = {
6137 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
6138 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
6139 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
6140 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
6141 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,
6142 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,
6143 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,
6144 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,
6147 /* Decode UTF-8 multi-byte representation into a Unicode character. */
6148 static inline unsigned long
6149 utf8_to_unicode(const char *string, size_t length)
6151 unsigned long unicode;
6155 unicode = string[0];
6158 unicode = (string[0] & 0x1f) << 6;
6159 unicode += (string[1] & 0x3f);
6162 unicode = (string[0] & 0x0f) << 12;
6163 unicode += ((string[1] & 0x3f) << 6);
6164 unicode += (string[2] & 0x3f);
6167 unicode = (string[0] & 0x0f) << 18;
6168 unicode += ((string[1] & 0x3f) << 12);
6169 unicode += ((string[2] & 0x3f) << 6);
6170 unicode += (string[3] & 0x3f);
6173 unicode = (string[0] & 0x0f) << 24;
6174 unicode += ((string[1] & 0x3f) << 18);
6175 unicode += ((string[2] & 0x3f) << 12);
6176 unicode += ((string[3] & 0x3f) << 6);
6177 unicode += (string[4] & 0x3f);
6180 unicode = (string[0] & 0x01) << 30;
6181 unicode += ((string[1] & 0x3f) << 24);
6182 unicode += ((string[2] & 0x3f) << 18);
6183 unicode += ((string[3] & 0x3f) << 12);
6184 unicode += ((string[4] & 0x3f) << 6);
6185 unicode += (string[5] & 0x3f);
6188 die("Invalid Unicode length");
6191 /* Invalid characters could return the special 0xfffd value but NUL
6192 * should be just as good. */
6193 return unicode > 0xffff ? 0 : unicode;
6196 /* Calculates how much of string can be shown within the given maximum width
6197 * and sets trimmed parameter to non-zero value if all of string could not be
6198 * shown. If the reserve flag is TRUE, it will reserve at least one
6199 * trailing character, which can be useful when drawing a delimiter.
6201 * Returns the number of bytes to output from string to satisfy max_width. */
6203 utf8_length(const char **start, size_t skip, int *width, size_t max_width, int *trimmed, bool reserve)
6205 const char *string = *start;
6206 const char *end = strchr(string, '\0');
6207 unsigned char last_bytes = 0;
6208 size_t last_ucwidth = 0;
6213 while (string < end) {
6214 int c = *(unsigned char *) string;
6215 unsigned char bytes = utf8_bytes[c];
6217 unsigned long unicode;
6219 if (string + bytes > end)
6222 /* Change representation to figure out whether
6223 * it is a single- or double-width character. */
6225 unicode = utf8_to_unicode(string, bytes);
6226 /* FIXME: Graceful handling of invalid Unicode character. */
6230 ucwidth = unicode_width(unicode);
6232 skip -= ucwidth <= skip ? ucwidth : skip;
6236 if (*width > max_width) {
6239 if (reserve && *width == max_width) {
6240 string -= last_bytes;
6241 *width -= last_ucwidth;
6247 last_bytes = ucwidth ? bytes : 0;
6248 last_ucwidth = ucwidth;
6251 return string - *start;
6259 /* Whether or not the curses interface has been initialized. */
6260 static bool cursed = FALSE;
6262 /* Terminal hacks and workarounds. */
6263 static bool use_scroll_redrawwin;
6264 static bool use_scroll_status_wclear;
6266 /* The status window is used for polling keystrokes. */
6267 static WINDOW *status_win;
6269 /* Reading from the prompt? */
6270 static bool input_mode = FALSE;
6272 static bool status_empty = FALSE;
6274 /* Update status and title window. */
6276 report(const char *msg, ...)
6278 struct view *view = display[current_view];
6284 char buf[SIZEOF_STR];
6287 va_start(args, msg);
6288 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6289 buf[sizeof(buf) - 1] = 0;
6290 buf[sizeof(buf) - 2] = '.';
6291 buf[sizeof(buf) - 3] = '.';
6292 buf[sizeof(buf) - 4] = '.';
6298 if (!status_empty || *msg) {
6301 va_start(args, msg);
6303 wmove(status_win, 0, 0);
6304 if (view->has_scrolled && use_scroll_status_wclear)
6307 vwprintw(status_win, msg, args);
6308 status_empty = FALSE;
6310 status_empty = TRUE;
6312 wclrtoeol(status_win);
6313 wnoutrefresh(status_win);
6318 update_view_title(view);
6321 /* Controls when nodelay should be in effect when polling user input. */
6323 set_nonblocking_input(bool loading)
6325 static unsigned int loading_views;
6327 if ((loading == FALSE && loading_views-- == 1) ||
6328 (loading == TRUE && loading_views++ == 0))
6329 nodelay(status_win, loading);
6338 /* Initialize the curses library */
6339 if (isatty(STDIN_FILENO)) {
6340 cursed = !!initscr();
6343 /* Leave stdin and stdout alone when acting as a pager. */
6344 opt_tty = fopen("/dev/tty", "r+");
6346 die("Failed to open /dev/tty");
6347 cursed = !!newterm(NULL, opt_tty, opt_tty);
6351 die("Failed to initialize curses");
6353 nonl(); /* Disable conversion and detect newlines from input. */
6354 cbreak(); /* Take input chars one at a time, no wait for \n */
6355 noecho(); /* Don't echo input */
6356 leaveok(stdscr, FALSE);
6361 getmaxyx(stdscr, y, x);
6362 status_win = newwin(1, 0, y - 1, 0);
6364 die("Failed to create status window");
6366 /* Enable keyboard mapping */
6367 keypad(status_win, TRUE);
6368 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6370 TABSIZE = opt_tab_size;
6371 if (opt_line_graphics) {
6372 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6375 term = getenv("XTERM_VERSION") ? NULL : getenv("COLORTERM");
6376 if (term && !strcmp(term, "gnome-terminal")) {
6377 /* In the gnome-terminal-emulator, the message from
6378 * scrolling up one line when impossible followed by
6379 * scrolling down one line causes corruption of the
6380 * status line. This is fixed by calling wclear. */
6381 use_scroll_status_wclear = TRUE;
6382 use_scroll_redrawwin = FALSE;
6384 } else if (term && !strcmp(term, "xrvt-xpm")) {
6385 /* No problems with full optimizations in xrvt-(unicode)
6387 use_scroll_status_wclear = use_scroll_redrawwin = FALSE;
6390 /* When scrolling in (u)xterm the last line in the
6391 * scrolling direction will update slowly. */
6392 use_scroll_redrawwin = TRUE;
6393 use_scroll_status_wclear = FALSE;
6398 get_input(int prompt_position)
6401 int i, key, cursor_y, cursor_x;
6403 if (prompt_position)
6407 foreach_view (view, i) {
6409 if (view_is_displayed(view) && view->has_scrolled &&
6410 use_scroll_redrawwin)
6411 redrawwin(view->win);
6412 view->has_scrolled = FALSE;
6415 /* Update the cursor position. */
6416 if (prompt_position) {
6417 getbegyx(status_win, cursor_y, cursor_x);
6418 cursor_x = prompt_position;
6420 view = display[current_view];
6421 getbegyx(view->win, cursor_y, cursor_x);
6422 cursor_x = view->width - 1;
6423 cursor_y += view->lineno - view->offset;
6425 setsyx(cursor_y, cursor_x);
6427 /* Refresh, accept single keystroke of input */
6429 key = wgetch(status_win);
6431 /* wgetch() with nodelay() enabled returns ERR when
6432 * there's no input. */
6435 } else if (key == KEY_RESIZE) {
6438 getmaxyx(stdscr, height, width);
6440 wresize(status_win, 1, width);
6441 mvwin(status_win, height - 1, 0);
6442 wnoutrefresh(status_win);
6444 redraw_display(TRUE);
6454 prompt_input(const char *prompt, input_handler handler, void *data)
6456 enum input_status status = INPUT_OK;
6457 static char buf[SIZEOF_STR];
6462 while (status == INPUT_OK || status == INPUT_SKIP) {
6465 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6466 wclrtoeol(status_win);
6468 key = get_input(pos + 1);
6473 status = pos ? INPUT_STOP : INPUT_CANCEL;
6480 status = INPUT_CANCEL;
6484 status = INPUT_CANCEL;
6488 if (pos >= sizeof(buf)) {
6489 report("Input string too long");
6493 status = handler(data, buf, key);
6494 if (status == INPUT_OK)
6495 buf[pos++] = (char) key;
6499 /* Clear the status window */
6500 status_empty = FALSE;
6503 if (status == INPUT_CANCEL)
6511 static enum input_status
6512 prompt_yesno_handler(void *data, char *buf, int c)
6514 if (c == 'y' || c == 'Y')
6516 if (c == 'n' || c == 'N')
6517 return INPUT_CANCEL;
6522 prompt_yesno(const char *prompt)
6524 char prompt2[SIZEOF_STR];
6526 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6529 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6532 static enum input_status
6533 read_prompt_handler(void *data, char *buf, int c)
6535 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6539 read_prompt(const char *prompt)
6541 return prompt_input(prompt, read_prompt_handler, NULL);
6545 * Repository properties
6548 static struct ref *refs = NULL;
6549 static size_t refs_alloc = 0;
6550 static size_t refs_size = 0;
6552 /* Id <-> ref store */
6553 static struct ref ***id_refs = NULL;
6554 static size_t id_refs_alloc = 0;
6555 static size_t id_refs_size = 0;
6558 compare_refs(const void *ref1_, const void *ref2_)
6560 const struct ref *ref1 = *(const struct ref **)ref1_;
6561 const struct ref *ref2 = *(const struct ref **)ref2_;
6563 if (ref1->tag != ref2->tag)
6564 return ref2->tag - ref1->tag;
6565 if (ref1->ltag != ref2->ltag)
6566 return ref2->ltag - ref2->ltag;
6567 if (ref1->head != ref2->head)
6568 return ref2->head - ref1->head;
6569 if (ref1->tracked != ref2->tracked)
6570 return ref2->tracked - ref1->tracked;
6571 if (ref1->remote != ref2->remote)
6572 return ref2->remote - ref1->remote;
6573 return strcmp(ref1->name, ref2->name);
6576 static struct ref **
6577 get_refs(const char *id)
6579 struct ref ***tmp_id_refs;
6580 struct ref **ref_list = NULL;
6581 size_t ref_list_alloc = 0;
6582 size_t ref_list_size = 0;
6585 for (i = 0; i < id_refs_size; i++)
6586 if (!strcmp(id, id_refs[i][0]->id))
6589 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6594 id_refs = tmp_id_refs;
6596 for (i = 0; i < refs_size; i++) {
6599 if (strcmp(id, refs[i].id))
6602 tmp = realloc_items(ref_list, &ref_list_alloc,
6603 ref_list_size + 1, sizeof(*ref_list));
6611 ref_list[ref_list_size] = &refs[i];
6612 /* XXX: The properties of the commit chains ensures that we can
6613 * safely modify the shared ref. The repo references will
6614 * always be similar for the same id. */
6615 ref_list[ref_list_size]->next = 1;
6621 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6622 ref_list[ref_list_size - 1]->next = 0;
6623 id_refs[id_refs_size++] = ref_list;
6630 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6635 bool remote = FALSE;
6636 bool tracked = FALSE;
6637 bool check_replace = FALSE;
6640 if (!prefixcmp(name, "refs/tags/")) {
6641 if (!suffixcmp(name, namelen, "^{}")) {
6644 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6645 check_replace = TRUE;
6651 namelen -= STRING_SIZE("refs/tags/");
6652 name += STRING_SIZE("refs/tags/");
6654 } else if (!prefixcmp(name, "refs/remotes/")) {
6656 namelen -= STRING_SIZE("refs/remotes/");
6657 name += STRING_SIZE("refs/remotes/");
6658 tracked = !strcmp(opt_remote, name);
6660 } else if (!prefixcmp(name, "refs/heads/")) {
6661 namelen -= STRING_SIZE("refs/heads/");
6662 name += STRING_SIZE("refs/heads/");
6663 head = !strncmp(opt_head, name, namelen);
6665 } else if (!strcmp(name, "HEAD")) {
6666 string_ncopy(opt_head_rev, id, idlen);
6670 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6671 /* it's an annotated tag, replace the previous SHA1 with the
6672 * resolved commit id; relies on the fact git-ls-remote lists
6673 * the commit id of an annotated tag right before the commit id
6675 refs[refs_size - 1].ltag = ltag;
6676 string_copy_rev(refs[refs_size - 1].id, id);
6680 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6684 ref = &refs[refs_size++];
6685 ref->name = malloc(namelen + 1);
6689 strncpy(ref->name, name, namelen);
6690 ref->name[namelen] = 0;
6694 ref->remote = remote;
6695 ref->tracked = tracked;
6696 string_copy_rev(ref->id, id);
6704 static const char *ls_remote_argv[SIZEOF_ARG] = {
6705 "git", "ls-remote", opt_git_dir, NULL
6707 static bool init = FALSE;
6710 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6717 while (refs_size > 0)
6718 free(refs[--refs_size].name);
6719 while (id_refs_size > 0)
6720 free(id_refs[--id_refs_size]);
6722 return run_io_load(ls_remote_argv, "\t", read_ref);
6726 set_remote_branch(const char *name, const char *value, size_t valuelen)
6728 if (!strcmp(name, ".remote")) {
6729 string_ncopy(opt_remote, value, valuelen);
6731 } else if (*opt_remote && !strcmp(name, ".merge")) {
6732 size_t from = strlen(opt_remote);
6734 if (!prefixcmp(value, "refs/heads/"))
6735 value += STRING_SIZE("refs/heads/");
6737 if (!string_format_from(opt_remote, &from, "/%s", value))
6743 set_repo_config_option(char *name, char *value, int (*cmd)(int, const char **))
6745 const char *argv[SIZEOF_ARG] = { name, "=" };
6746 int argc = 1 + (cmd == option_set_command);
6749 if (!argv_from_string(argv, &argc, value))
6750 config_msg = "Too many option arguments";
6752 error = cmd(argc, argv);
6755 warn("Option 'tig.%s': %s", name, config_msg);
6759 set_environment_variable(const char *name, const char *value)
6761 size_t len = strlen(name) + 1 + strlen(value) + 1;
6762 char *env = malloc(len);
6765 string_nformat(env, len, NULL, "%s=%s", name, value) &&
6773 set_work_tree(const char *value)
6775 char cwd[SIZEOF_STR];
6777 if (!getcwd(cwd, sizeof(cwd)))
6778 die("Failed to get cwd path: %s", strerror(errno));
6779 if (chdir(opt_git_dir) < 0)
6780 die("Failed to chdir(%s): %s", strerror(errno));
6781 if (!getcwd(opt_git_dir, sizeof(opt_git_dir)))
6782 die("Failed to get git path: %s", strerror(errno));
6784 die("Failed to chdir(%s): %s", cwd, strerror(errno));
6785 if (chdir(value) < 0)
6786 die("Failed to chdir(%s): %s", value, strerror(errno));
6787 if (!getcwd(cwd, sizeof(cwd)))
6788 die("Failed to get cwd path: %s", strerror(errno));
6789 if (!set_environment_variable("GIT_WORK_TREE", cwd))
6790 die("Failed to set GIT_WORK_TREE to '%s'", cwd);
6791 if (!set_environment_variable("GIT_DIR", opt_git_dir))
6792 die("Failed to set GIT_DIR to '%s'", opt_git_dir);
6793 opt_is_inside_work_tree = TRUE;
6797 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6799 if (!strcmp(name, "i18n.commitencoding"))
6800 string_ncopy(opt_encoding, value, valuelen);
6802 else if (!strcmp(name, "core.editor"))
6803 string_ncopy(opt_editor, value, valuelen);
6805 else if (!strcmp(name, "core.worktree"))
6806 set_work_tree(value);
6808 else if (!prefixcmp(name, "tig.color."))
6809 set_repo_config_option(name + 10, value, option_color_command);
6811 else if (!prefixcmp(name, "tig.bind."))
6812 set_repo_config_option(name + 9, value, option_bind_command);
6814 else if (!prefixcmp(name, "tig."))
6815 set_repo_config_option(name + 4, value, option_set_command);
6817 else if (*opt_head && !prefixcmp(name, "branch.") &&
6818 !strncmp(name + 7, opt_head, strlen(opt_head)))
6819 set_remote_branch(name + 7 + strlen(opt_head), value, valuelen);
6825 load_git_config(void)
6827 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6829 return run_io_load(config_list_argv, "=", read_repo_config_option);
6833 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6835 if (!opt_git_dir[0]) {
6836 string_ncopy(opt_git_dir, name, namelen);
6838 } else if (opt_is_inside_work_tree == -1) {
6839 /* This can be 3 different values depending on the
6840 * version of git being used. If git-rev-parse does not
6841 * understand --is-inside-work-tree it will simply echo
6842 * the option else either "true" or "false" is printed.
6843 * Default to true for the unknown case. */
6844 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6846 } else if (*name == '.') {
6847 string_ncopy(opt_cdup, name, namelen);
6850 string_ncopy(opt_prefix, name, namelen);
6857 load_repo_info(void)
6859 const char *head_argv[] = {
6860 "git", "symbolic-ref", "HEAD", NULL
6862 const char *rev_parse_argv[] = {
6863 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6864 "--show-cdup", "--show-prefix", NULL
6867 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6868 chomp_string(opt_head);
6869 if (!prefixcmp(opt_head, "refs/heads/")) {
6870 char *offset = opt_head + STRING_SIZE("refs/heads/");
6872 memmove(opt_head, offset, strlen(offset) + 1);
6876 return run_io_load(rev_parse_argv, "=", read_repo_info);
6884 static const char usage[] =
6885 "tig " TIG_VERSION " (" __DATE__ ")\n"
6887 "Usage: tig [options] [revs] [--] [paths]\n"
6888 " or: tig show [options] [revs] [--] [paths]\n"
6889 " or: tig blame [rev] path\n"
6891 " or: tig < [git command output]\n"
6894 " -v, --version Show version and exit\n"
6895 " -h, --help Show help message and exit";
6897 static void __NORETURN
6900 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6906 static void __NORETURN
6907 die(const char *err, ...)
6913 va_start(args, err);
6914 fputs("tig: ", stderr);
6915 vfprintf(stderr, err, args);
6916 fputs("\n", stderr);
6923 warn(const char *msg, ...)
6927 va_start(args, msg);
6928 fputs("tig warning: ", stderr);
6929 vfprintf(stderr, msg, args);
6930 fputs("\n", stderr);
6935 parse_options(int argc, const char *argv[])
6937 enum request request = REQ_VIEW_MAIN;
6938 const char *subcommand;
6939 bool seen_dashdash = FALSE;
6940 /* XXX: This is vulnerable to the user overriding options
6941 * required for the main view parser. */
6942 const char *custom_argv[SIZEOF_ARG] = {
6943 "git", "log", "--no-color", "--pretty=raw", "--parents",
6944 "--topo-order", NULL
6948 if (!isatty(STDIN_FILENO)) {
6949 io_open(&VIEW(REQ_VIEW_PAGER)->io, "");
6950 return REQ_VIEW_PAGER;
6956 subcommand = argv[1];
6957 if (!strcmp(subcommand, "status")) {
6959 warn("ignoring arguments after `%s'", subcommand);
6960 return REQ_VIEW_STATUS;
6962 } else if (!strcmp(subcommand, "blame")) {
6963 if (argc <= 2 || argc > 4)
6964 die("invalid number of options to blame\n\n%s", usage);
6968 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
6972 string_ncopy(opt_file, argv[i], strlen(argv[i]));
6973 return REQ_VIEW_BLAME;
6975 } else if (!strcmp(subcommand, "show")) {
6976 request = REQ_VIEW_DIFF;
6983 custom_argv[1] = subcommand;
6987 for (i = 1 + !!subcommand; i < argc; i++) {
6988 const char *opt = argv[i];
6990 if (seen_dashdash || !strcmp(opt, "--")) {
6991 seen_dashdash = TRUE;
6993 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
6994 printf("tig version %s\n", TIG_VERSION);
6997 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
6998 printf("%s\n", usage);
7002 custom_argv[j++] = opt;
7003 if (j >= ARRAY_SIZE(custom_argv))
7004 die("command too long");
7007 if (!prepare_update(VIEW(request), custom_argv, NULL, FORMAT_NONE))
7008 die("Failed to format arguments");
7014 main(int argc, const char *argv[])
7016 enum request request = parse_options(argc, argv);
7020 signal(SIGINT, quit);
7021 signal(SIGPIPE, SIG_IGN);
7023 if (setlocale(LC_ALL, "")) {
7024 char *codeset = nl_langinfo(CODESET);
7026 string_ncopy(opt_codeset, codeset, strlen(codeset));
7029 if (load_repo_info() == ERR)
7030 die("Failed to load repo info.");
7032 if (load_options() == ERR)
7033 die("Failed to load user config.");
7035 if (load_git_config() == ERR)
7036 die("Failed to load repo config.");
7038 /* Require a git repository unless when running in pager mode. */
7039 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
7040 die("Not a git repository");
7042 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
7045 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
7046 opt_iconv = iconv_open(opt_codeset, opt_encoding);
7047 if (opt_iconv == ICONV_NONE)
7048 die("Failed to initialize character set conversion");
7051 if (load_refs() == ERR)
7052 die("Failed to load refs.");
7054 foreach_view (view, i)
7055 argv_from_env(view->ops->argv, view->cmd_env);
7059 if (request != REQ_NONE)
7060 open_view(NULL, request, OPEN_PREPARED);
7061 request = request == REQ_NONE ? REQ_VIEW_MAIN : REQ_NONE;
7063 while (view_driver(display[current_view], request)) {
7064 int key = get_input(0);
7066 view = display[current_view];
7067 request = get_keybinding(view->keymap, key);
7069 /* Some low-level request handling. This keeps access to
7070 * status_win restricted. */
7074 char *cmd = read_prompt(":");
7076 if (cmd && isdigit(*cmd)) {
7077 int lineno = view->lineno + 1;
7079 if (parse_int(&lineno, cmd, 1, view->lines + 1) == OK) {
7080 select_view_line(view, lineno - 1);
7083 report("Unable to parse '%s' as a line number", cmd);
7087 struct view *next = VIEW(REQ_VIEW_PAGER);
7088 const char *argv[SIZEOF_ARG] = { "git" };
7091 /* When running random commands, initially show the
7092 * command in the title. However, it maybe later be
7093 * overwritten if a commit line is selected. */
7094 string_ncopy(next->ref, cmd, strlen(cmd));
7096 if (!argv_from_string(argv, &argc, cmd)) {
7097 report("Too many arguments");
7098 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
7099 report("Failed to format command");
7101 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
7109 case REQ_SEARCH_BACK:
7111 const char *prompt = request == REQ_SEARCH ? "/" : "?";
7112 char *search = read_prompt(prompt);
7115 string_ncopy(opt_search, search, strlen(search));
7116 else if (*opt_search)
7117 request = request == REQ_SEARCH ?