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. */
1774 bool can_hscroll; /* View can be scrolled horizontally. */
1784 /* What type of content being displayed. Used in the title bar. */
1786 /* Default command arguments. */
1788 /* Open and reads in all view content. */
1789 bool (*open)(struct view *view);
1790 /* Read one line; updates view->line. */
1791 bool (*read)(struct view *view, char *data);
1792 /* Draw one line; @lineno must be < view->height. */
1793 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1794 /* Depending on view handle a special requests. */
1795 enum request (*request)(struct view *view, enum request request, struct line *line);
1796 /* Search for regexp in a line. */
1797 bool (*grep)(struct view *view, struct line *line);
1799 void (*select)(struct view *view, struct line *line);
1802 static struct view_ops blame_ops;
1803 static struct view_ops blob_ops;
1804 static struct view_ops diff_ops;
1805 static struct view_ops help_ops;
1806 static struct view_ops log_ops;
1807 static struct view_ops main_ops;
1808 static struct view_ops pager_ops;
1809 static struct view_ops stage_ops;
1810 static struct view_ops status_ops;
1811 static struct view_ops tree_ops;
1813 #define VIEW_STR(name, env, ref, ops, map, git) \
1814 { name, #env, ref, ops, map, git }
1816 #define VIEW_(id, name, ops, git, ref) \
1817 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1820 static struct view views[] = {
1821 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1822 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1823 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1824 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1825 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1826 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1827 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1828 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1829 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1830 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1833 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1834 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1836 #define foreach_view(view, i) \
1837 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1839 #define view_is_displayed(view) \
1840 (view == display[0] || view == display[1])
1847 static int line_graphics[] = {
1848 /* LINE_GRAPHIC_VLINE: */ '|'
1852 set_view_attr(struct view *view, enum line_type type)
1854 if (!view->curline->selected && view->curtype != type) {
1855 wattrset(view->win, get_line_attr(type));
1856 wchgat(view->win, -1, 0, type, NULL);
1857 view->curtype = type;
1862 draw_chars(struct view *view, enum line_type type, const char *string,
1863 int max_len, bool use_tilde)
1867 int trimmed = FALSE;
1868 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1874 len = utf8_length(&string, skip, &col, max_len, &trimmed, use_tilde);
1876 col = len = strlen(string);
1877 if (len > max_len) {
1881 col = len = max_len;
1886 set_view_attr(view, type);
1888 waddnstr(view->win, string, len);
1889 if (trimmed && use_tilde) {
1890 set_view_attr(view, LINE_DELIMITER);
1891 waddch(view->win, '~');
1895 if (view->col + col >= view->width + view->yoffset)
1896 view->can_hscroll = TRUE;
1902 draw_space(struct view *view, enum line_type type, int max, int spaces)
1904 static char space[] = " ";
1907 spaces = MIN(max, spaces);
1909 while (spaces > 0) {
1910 int len = MIN(spaces, sizeof(space) - 1);
1912 col += draw_chars(view, type, space, spaces, FALSE);
1920 draw_lineno(struct view *view, unsigned int lineno)
1922 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1924 int digits3 = view->digits < 3 ? 3 : view->digits;
1925 int max_number = MIN(digits3, STRING_SIZE(number));
1926 int max = view->width - view->col;
1929 if (max < max_number)
1932 lineno += view->offset + 1;
1933 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1934 static char fmt[] = "%1ld";
1936 if (view->digits <= 9)
1937 fmt[1] = '0' + digits3;
1939 if (!string_format(number, fmt, lineno))
1941 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1943 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1946 if (col < max && skip <= col) {
1947 set_view_attr(view, LINE_DEFAULT);
1948 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1953 if (col < max && skip <= col)
1954 col = draw_space(view, LINE_DEFAULT, max - col, 1);
1957 return view->width + view->yoffset <= view->col;
1961 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1963 view->col += draw_chars(view, type, string, view->width + view->yoffset - view->col, trim);
1964 return view->width - view->col <= 0;
1968 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1970 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1971 int max = view->width - view->col;
1977 set_view_attr(view, type);
1978 /* Using waddch() instead of waddnstr() ensures that
1979 * they'll be rendered correctly for the cursor line. */
1980 for (i = skip; i < size; i++)
1981 waddch(view->win, graphic[i]);
1984 if (size < max && skip <= size)
1985 waddch(view->win, ' ');
1988 return view->width - view->col <= 0;
1992 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1994 int max = MIN(view->width - view->col, len);
1998 col = draw_chars(view, type, text, max - 1, trim);
2000 col = draw_space(view, type, max - 1, max - 1);
2003 view->col += draw_space(view, LINE_DEFAULT, max - col, max - col);
2004 return view->width + view->yoffset <= view->col;
2008 draw_date(struct view *view, struct tm *time)
2010 char buf[DATE_COLS];
2015 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
2016 date = timelen ? buf : NULL;
2018 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
2022 draw_author(struct view *view, const char *author)
2024 bool trim = opt_author_cols == 0 || opt_author_cols > 5 || !author;
2027 static char initials[10];
2030 #define is_initial_sep(c) (isspace(c) || ispunct(c) || (c) == '@')
2032 memset(initials, 0, sizeof(initials));
2033 for (pos = 0; *author && pos < opt_author_cols - 1; author++, pos++) {
2034 while (is_initial_sep(*author))
2036 strncpy(&initials[pos], author, sizeof(initials) - 1 - pos);
2037 while (*author && !is_initial_sep(author[1]))
2044 return draw_field(view, LINE_AUTHOR, author, opt_author_cols, trim);
2048 draw_mode(struct view *view, mode_t mode)
2054 else if (S_ISLNK(mode))
2056 else if (S_ISGITLINK(mode))
2058 else if (S_ISREG(mode) && mode & S_IXUSR)
2060 else if (S_ISREG(mode))
2065 return draw_field(view, LINE_MODE, str, STRING_SIZE("-rw-r--r-- "), FALSE);
2069 draw_view_line(struct view *view, unsigned int lineno)
2072 bool selected = (view->offset + lineno == view->lineno);
2074 assert(view_is_displayed(view));
2076 if (view->offset + lineno >= view->lines)
2079 line = &view->line[view->offset + lineno];
2081 wmove(view->win, lineno, 0);
2083 wclrtoeol(view->win);
2085 view->curline = line;
2086 view->curtype = LINE_NONE;
2087 line->selected = FALSE;
2088 line->dirty = line->cleareol = 0;
2091 set_view_attr(view, LINE_CURSOR);
2092 line->selected = TRUE;
2093 view->ops->select(view, line);
2096 return view->ops->draw(view, line, lineno);
2100 redraw_view_dirty(struct view *view)
2105 for (lineno = 0; lineno < view->height; lineno++) {
2106 if (view->offset + lineno >= view->lines)
2108 if (!view->line[view->offset + lineno].dirty)
2111 if (!draw_view_line(view, lineno))
2117 wnoutrefresh(view->win);
2121 redraw_view_from(struct view *view, int lineno)
2123 assert(0 <= lineno && lineno < view->height);
2126 view->can_hscroll = FALSE;
2128 for (; lineno < view->height; lineno++) {
2129 if (!draw_view_line(view, lineno))
2133 wnoutrefresh(view->win);
2137 redraw_view(struct view *view)
2140 redraw_view_from(view, 0);
2145 update_view_title(struct view *view)
2147 char buf[SIZEOF_STR];
2148 char state[SIZEOF_STR];
2149 size_t bufpos = 0, statelen = 0;
2151 assert(view_is_displayed(view));
2153 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2154 unsigned int view_lines = view->offset + view->height;
2155 unsigned int lines = view->lines
2156 ? MIN(view_lines, view->lines) * 100 / view->lines
2159 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2168 time_t secs = time(NULL) - view->start_time;
2170 /* Three git seconds are a long time ... */
2172 string_format_from(state, &statelen, " loading %lds", secs);
2175 string_format_from(buf, &bufpos, "[%s]", view->name);
2176 if (*view->ref && bufpos < view->width) {
2177 size_t refsize = strlen(view->ref);
2178 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2180 if (minsize < view->width)
2181 refsize = view->width - minsize + 7;
2182 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2185 if (statelen && bufpos < view->width) {
2186 string_format_from(buf, &bufpos, "%s", state);
2189 if (view == display[current_view])
2190 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2192 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2194 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2195 wclrtoeol(view->title);
2196 wnoutrefresh(view->title);
2200 resize_display(void)
2203 struct view *base = display[0];
2204 struct view *view = display[1] ? display[1] : display[0];
2206 /* Setup window dimensions */
2208 getmaxyx(stdscr, base->height, base->width);
2210 /* Make room for the status window. */
2214 /* Horizontal split. */
2215 view->width = base->width;
2216 view->height = SCALE_SPLIT_VIEW(base->height);
2217 base->height -= view->height;
2219 /* Make room for the title bar. */
2223 /* Make room for the title bar. */
2228 foreach_displayed_view (view, i) {
2230 view->win = newwin(view->height, 0, offset, 0);
2232 die("Failed to create %s view", view->name);
2234 scrollok(view->win, FALSE);
2236 view->title = newwin(1, 0, offset + view->height, 0);
2238 die("Failed to create title window");
2241 wresize(view->win, view->height, view->width);
2242 mvwin(view->win, offset, 0);
2243 mvwin(view->title, offset + view->height, 0);
2246 offset += view->height + 1;
2251 redraw_display(bool clear)
2256 foreach_displayed_view (view, i) {
2260 update_view_title(view);
2265 toggle_view_option(bool *option, const char *help)
2268 redraw_display(FALSE);
2269 report("%sabling %s", *option ? "En" : "Dis", help);
2273 maximize_view(struct view *view)
2275 memset(display, 0, sizeof(display));
2277 display[current_view] = view;
2279 redraw_display(FALSE);
2289 goto_view_line(struct view *view, unsigned long offset, unsigned long lineno)
2291 if (lineno >= view->lines)
2292 lineno = view->lines > 0 ? view->lines - 1 : 0;
2294 if (offset > lineno || offset + view->height <= lineno) {
2295 unsigned long half = view->height / 2;
2298 offset = lineno - half;
2303 if (offset != view->offset || lineno != view->lineno) {
2304 view->offset = offset;
2305 view->lineno = lineno;
2313 apply_step(double step, int value)
2317 value *= step + 0.01;
2318 return value ? value : 1;
2321 /* Scrolling backend */
2323 do_scroll_view(struct view *view, int lines)
2325 bool redraw_current_line = FALSE;
2327 /* The rendering expects the new offset. */
2328 view->offset += lines;
2330 assert(0 <= view->offset && view->offset < view->lines);
2333 /* Move current line into the view. */
2334 if (view->lineno < view->offset) {
2335 view->lineno = view->offset;
2336 redraw_current_line = TRUE;
2337 } else if (view->lineno >= view->offset + view->height) {
2338 view->lineno = view->offset + view->height - 1;
2339 redraw_current_line = TRUE;
2342 assert(view->offset <= view->lineno && view->lineno < view->lines);
2344 /* Redraw the whole screen if scrolling is pointless. */
2345 if (view->height < ABS(lines)) {
2349 int line = lines > 0 ? view->height - lines : 0;
2350 int end = line + ABS(lines);
2352 scrollok(view->win, TRUE);
2353 wscrl(view->win, lines);
2354 scrollok(view->win, FALSE);
2356 while (line < end && draw_view_line(view, line))
2359 if (redraw_current_line)
2360 draw_view_line(view, view->lineno - view->offset);
2361 wnoutrefresh(view->win);
2364 view->has_scrolled = TRUE;
2368 /* Scroll frontend */
2370 scroll_view(struct view *view, enum request request)
2374 assert(view_is_displayed(view));
2377 case REQ_SCROLL_LEFT:
2378 if (view->yoffset == 0) {
2379 report("Cannot scroll beyond the first column");
2382 if (view->yoffset <= apply_step(opt_hscroll, view->width))
2385 view->yoffset -= apply_step(opt_hscroll, view->width);
2386 redraw_view_from(view, 0);
2389 case REQ_SCROLL_RIGHT:
2390 if (!view->can_hscroll) {
2391 report("Cannot scroll beyond the last column");
2394 view->yoffset += apply_step(opt_hscroll, view->width);
2395 if (view->yoffset > view->width)
2396 view->yoffset = view->width;
2400 case REQ_SCROLL_PAGE_DOWN:
2401 lines = view->height;
2402 case REQ_SCROLL_LINE_DOWN:
2403 if (view->offset + lines > view->lines)
2404 lines = view->lines - view->offset;
2406 if (lines == 0 || view->offset + view->height >= view->lines) {
2407 report("Cannot scroll beyond the last line");
2412 case REQ_SCROLL_PAGE_UP:
2413 lines = view->height;
2414 case REQ_SCROLL_LINE_UP:
2415 if (lines > view->offset)
2416 lines = view->offset;
2419 report("Cannot scroll beyond the first line");
2427 die("request %d not handled in switch", request);
2430 do_scroll_view(view, lines);
2435 move_view(struct view *view, enum request request)
2437 int scroll_steps = 0;
2441 case REQ_MOVE_FIRST_LINE:
2442 steps = -view->lineno;
2445 case REQ_MOVE_LAST_LINE:
2446 steps = view->lines - view->lineno - 1;
2449 case REQ_MOVE_PAGE_UP:
2450 steps = view->height > view->lineno
2451 ? -view->lineno : -view->height;
2454 case REQ_MOVE_PAGE_DOWN:
2455 steps = view->lineno + view->height >= view->lines
2456 ? view->lines - view->lineno - 1 : view->height;
2468 die("request %d not handled in switch", request);
2471 if (steps <= 0 && view->lineno == 0) {
2472 report("Cannot move beyond the first line");
2475 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2476 report("Cannot move beyond the last line");
2480 /* Move the current line */
2481 view->lineno += steps;
2482 assert(0 <= view->lineno && view->lineno < view->lines);
2484 /* Check whether the view needs to be scrolled */
2485 if (view->lineno < view->offset ||
2486 view->lineno >= view->offset + view->height) {
2487 scroll_steps = steps;
2488 if (steps < 0 && -steps > view->offset) {
2489 scroll_steps = -view->offset;
2491 } else if (steps > 0) {
2492 if (view->lineno == view->lines - 1 &&
2493 view->lines > view->height) {
2494 scroll_steps = view->lines - view->offset - 1;
2495 if (scroll_steps >= view->height)
2496 scroll_steps -= view->height - 1;
2501 if (!view_is_displayed(view)) {
2502 view->offset += scroll_steps;
2503 assert(0 <= view->offset && view->offset < view->lines);
2504 view->ops->select(view, &view->line[view->lineno]);
2508 /* Repaint the old "current" line if we be scrolling */
2509 if (ABS(steps) < view->height)
2510 draw_view_line(view, view->lineno - steps - view->offset);
2513 do_scroll_view(view, scroll_steps);
2517 /* Draw the current line */
2518 draw_view_line(view, view->lineno - view->offset);
2520 wnoutrefresh(view->win);
2529 static void search_view(struct view *view, enum request request);
2532 select_view_line(struct view *view, unsigned long lineno)
2534 unsigned long old_lineno = view->lineno;
2535 unsigned long old_offset = view->offset;
2537 if (goto_view_line(view, view->offset, lineno)) {
2538 if (view_is_displayed(view)) {
2539 if (old_offset != view->offset) {
2542 draw_view_line(view, old_lineno - view->offset);
2543 draw_view_line(view, view->lineno - view->offset);
2544 wnoutrefresh(view->win);
2547 view->ops->select(view, &view->line[view->lineno]);
2553 find_next(struct view *view, enum request request)
2555 unsigned long lineno = view->lineno;
2560 report("No previous search");
2562 search_view(view, request);
2572 case REQ_SEARCH_BACK:
2581 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2582 lineno += direction;
2584 /* Note, lineno is unsigned long so will wrap around in which case it
2585 * will become bigger than view->lines. */
2586 for (; lineno < view->lines; lineno += direction) {
2587 if (view->ops->grep(view, &view->line[lineno])) {
2588 select_view_line(view, lineno);
2589 report("Line %ld matches '%s'", lineno + 1, view->grep);
2594 report("No match found for '%s'", view->grep);
2598 search_view(struct view *view, enum request request)
2603 regfree(view->regex);
2606 view->regex = calloc(1, sizeof(*view->regex));
2611 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2612 if (regex_err != 0) {
2613 char buf[SIZEOF_STR] = "unknown error";
2615 regerror(regex_err, view->regex, buf, sizeof(buf));
2616 report("Search failed: %s", buf);
2620 string_copy(view->grep, opt_search);
2622 find_next(view, request);
2626 * Incremental updating
2630 reset_view(struct view *view)
2634 for (i = 0; i < view->lines; i++)
2635 free(view->line[i].data);
2638 view->p_offset = view->offset;
2639 view->p_yoffset = view->yoffset;
2640 view->p_lineno = view->lineno;
2647 view->line_alloc = 0;
2649 view->update_secs = 0;
2653 free_argv(const char *argv[])
2657 for (argc = 0; argv[argc]; argc++)
2658 free((void *) argv[argc]);
2662 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2664 char buf[SIZEOF_STR];
2666 bool noreplace = flags == FORMAT_NONE;
2668 free_argv(dst_argv);
2670 for (argc = 0; src_argv[argc]; argc++) {
2671 const char *arg = src_argv[argc];
2675 char *next = strstr(arg, "%(");
2676 int len = next - arg;
2679 if (!next || noreplace) {
2680 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2685 } else if (!prefixcmp(next, "%(directory)")) {
2688 } else if (!prefixcmp(next, "%(file)")) {
2691 } else if (!prefixcmp(next, "%(ref)")) {
2692 value = *opt_ref ? opt_ref : "HEAD";
2694 } else if (!prefixcmp(next, "%(head)")) {
2697 } else if (!prefixcmp(next, "%(commit)")) {
2700 } else if (!prefixcmp(next, "%(blob)")) {
2704 report("Unknown replacement: `%s`", next);
2708 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2711 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2714 dst_argv[argc] = strdup(buf);
2715 if (!dst_argv[argc])
2719 dst_argv[argc] = NULL;
2721 return src_argv[argc] == NULL;
2725 restore_view_position(struct view *view)
2727 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2730 /* Changing the view position cancels the restoring. */
2731 /* FIXME: Changing back to the first line is not detected. */
2732 if (view->offset != 0 || view->lineno != 0) {
2733 view->p_restore = FALSE;
2737 if (goto_view_line(view, view->p_offset, view->p_lineno) &&
2738 view_is_displayed(view))
2741 view->yoffset = view->p_yoffset;
2742 view->p_restore = FALSE;
2748 end_update(struct view *view, bool force)
2752 while (!view->ops->read(view, NULL))
2755 set_nonblocking_input(FALSE);
2757 kill_io(view->pipe);
2758 done_io(view->pipe);
2763 setup_update(struct view *view, const char *vid)
2765 set_nonblocking_input(TRUE);
2767 string_copy_rev(view->vid, vid);
2768 view->pipe = &view->io;
2769 view->start_time = time(NULL);
2773 prepare_update(struct view *view, const char *argv[], const char *dir,
2774 enum format_flags flags)
2777 end_update(view, TRUE);
2778 return init_io_rd(&view->io, argv, dir, flags);
2782 prepare_update_file(struct view *view, const char *name)
2785 end_update(view, TRUE);
2786 return io_open(&view->io, name);
2790 begin_update(struct view *view, bool refresh)
2793 end_update(view, TRUE);
2796 if (!start_io(&view->io))
2800 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2803 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2806 /* Put the current ref_* value to the view title ref
2807 * member. This is needed by the blob view. Most other
2808 * views sets it automatically after loading because the
2809 * first line is a commit line. */
2810 string_copy_rev(view->ref, view->id);
2813 setup_update(view, view->id);
2818 #define ITEM_CHUNK_SIZE 256
2820 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2822 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2823 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2825 if (mem == NULL || num_chunks != num_chunks_new) {
2826 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2827 mem = realloc(mem, *size * item_size);
2833 static struct line *
2834 realloc_lines(struct view *view, size_t line_size)
2836 size_t alloc = view->line_alloc;
2837 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2838 sizeof(*view->line));
2844 view->line_alloc = alloc;
2849 update_view(struct view *view)
2851 char out_buffer[BUFSIZ * 2];
2853 /* Clear the view and redraw everything since the tree sorting
2854 * might have rearranged things. */
2855 bool redraw = view->lines == 0;
2856 bool can_read = TRUE;
2861 if (!io_can_read(view->pipe)) {
2862 if (view->lines == 0) {
2863 time_t secs = time(NULL) - view->start_time;
2865 if (secs > 1 && secs > view->update_secs) {
2866 if (view->update_secs == 0)
2868 update_view_title(view);
2869 view->update_secs = secs;
2875 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2876 if (opt_iconv != ICONV_NONE) {
2877 ICONV_CONST char *inbuf = line;
2878 size_t inlen = strlen(line) + 1;
2880 char *outbuf = out_buffer;
2881 size_t outlen = sizeof(out_buffer);
2885 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2886 if (ret != (size_t) -1)
2890 if (!view->ops->read(view, line)) {
2891 report("Allocation failure");
2892 end_update(view, TRUE);
2898 unsigned long lines = view->lines;
2901 for (digits = 0; lines; digits++)
2904 /* Keep the displayed view in sync with line number scaling. */
2905 if (digits != view->digits) {
2906 view->digits = digits;
2907 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2912 if (io_error(view->pipe)) {
2913 report("Failed to read: %s", io_strerror(view->pipe));
2914 end_update(view, TRUE);
2916 } else if (io_eof(view->pipe)) {
2918 end_update(view, FALSE);
2921 if (restore_view_position(view))
2924 if (!view_is_displayed(view))
2928 redraw_view_from(view, 0);
2930 redraw_view_dirty(view);
2932 /* Update the title _after_ the redraw so that if the redraw picks up a
2933 * commit reference in view->ref it'll be available here. */
2934 update_view_title(view);
2938 static struct line *
2939 add_line_data(struct view *view, void *data, enum line_type type)
2943 if (!realloc_lines(view, view->lines + 1))
2946 line = &view->line[view->lines++];
2947 memset(line, 0, sizeof(*line));
2955 static struct line *
2956 add_line_text(struct view *view, const char *text, enum line_type type)
2958 char *data = text ? strdup(text) : NULL;
2960 return data ? add_line_data(view, data, type) : NULL;
2963 static struct line *
2964 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2966 char buf[SIZEOF_STR];
2969 va_start(args, fmt);
2970 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2974 return buf[0] ? add_line_text(view, buf, type) : NULL;
2982 OPEN_DEFAULT = 0, /* Use default view switching. */
2983 OPEN_SPLIT = 1, /* Split current view. */
2984 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2985 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2986 OPEN_PREPARED = 32, /* Open already prepared command. */
2990 open_view(struct view *prev, enum request request, enum open_flags flags)
2992 bool split = !!(flags & OPEN_SPLIT);
2993 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2994 bool nomaximize = !!(flags & OPEN_REFRESH);
2995 struct view *view = VIEW(request);
2996 int nviews = displayed_views();
2997 struct view *base_view = display[0];
2999 if (view == prev && nviews == 1 && !reload) {
3000 report("Already in %s view", view->name);
3004 if (view->git_dir && !opt_git_dir[0]) {
3005 report("The %s view is disabled in pager view", view->name);
3012 } else if (!nomaximize) {
3013 /* Maximize the current view. */
3014 memset(display, 0, sizeof(display));
3016 display[current_view] = view;
3019 /* Resize the view when switching between split- and full-screen,
3020 * or when switching between two different full-screen views. */
3021 if (nviews != displayed_views() ||
3022 (nviews == 1 && base_view != display[0]))
3025 if (view->ops->open) {
3027 end_update(view, TRUE);
3028 if (!view->ops->open(view)) {
3029 report("Failed to load %s view", view->name);
3032 restore_view_position(view);
3034 } else if ((reload || strcmp(view->vid, view->id)) &&
3035 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
3036 report("Failed to load %s view", view->name);
3040 if (split && prev->lineno - prev->offset >= prev->height) {
3041 /* Take the title line into account. */
3042 int lines = prev->lineno - prev->offset - prev->height + 1;
3044 /* Scroll the view that was split if the current line is
3045 * outside the new limited view. */
3046 do_scroll_view(prev, lines);
3049 if (prev && view != prev) {
3051 /* "Blur" the previous view. */
3052 update_view_title(prev);
3055 view->parent = prev;
3058 if (view->pipe && view->lines == 0) {
3059 /* Clear the old view and let the incremental updating refill
3062 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
3064 } else if (view_is_displayed(view)) {
3071 open_external_viewer(const char *argv[], const char *dir)
3073 def_prog_mode(); /* save current tty modes */
3074 endwin(); /* restore original tty modes */
3075 run_io_fg(argv, dir);
3076 fprintf(stderr, "Press Enter to continue");
3079 redraw_display(TRUE);
3083 open_mergetool(const char *file)
3085 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
3087 open_external_viewer(mergetool_argv, opt_cdup);
3091 open_editor(bool from_root, const char *file)
3093 const char *editor_argv[] = { "vi", file, NULL };
3096 editor = getenv("GIT_EDITOR");
3097 if (!editor && *opt_editor)
3098 editor = opt_editor;
3100 editor = getenv("VISUAL");
3102 editor = getenv("EDITOR");
3106 editor_argv[0] = editor;
3107 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3111 open_run_request(enum request request)
3113 struct run_request *req = get_run_request(request);
3114 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3117 report("Unknown run request");
3121 if (format_argv(argv, req->argv, FORMAT_ALL))
3122 open_external_viewer(argv, NULL);
3127 * User request switch noodle
3131 view_driver(struct view *view, enum request request)
3135 if (request == REQ_NONE) {
3140 if (request > REQ_NONE) {
3141 open_run_request(request);
3142 /* FIXME: When all views can refresh always do this. */
3143 if (view == VIEW(REQ_VIEW_STATUS) ||
3144 view == VIEW(REQ_VIEW_MAIN) ||
3145 view == VIEW(REQ_VIEW_LOG) ||
3146 view == VIEW(REQ_VIEW_STAGE))
3147 request = REQ_REFRESH;
3152 if (view && view->lines) {
3153 request = view->ops->request(view, request, &view->line[view->lineno]);
3154 if (request == REQ_NONE)
3161 case REQ_MOVE_PAGE_UP:
3162 case REQ_MOVE_PAGE_DOWN:
3163 case REQ_MOVE_FIRST_LINE:
3164 case REQ_MOVE_LAST_LINE:
3165 move_view(view, request);
3168 case REQ_SCROLL_LEFT:
3169 case REQ_SCROLL_RIGHT:
3170 case REQ_SCROLL_LINE_DOWN:
3171 case REQ_SCROLL_LINE_UP:
3172 case REQ_SCROLL_PAGE_DOWN:
3173 case REQ_SCROLL_PAGE_UP:
3174 scroll_view(view, request);
3177 case REQ_VIEW_BLAME:
3179 report("No file chosen, press %s to open tree view",
3180 get_key(REQ_VIEW_TREE));
3183 open_view(view, request, OPEN_DEFAULT);
3188 report("No file chosen, press %s to open tree view",
3189 get_key(REQ_VIEW_TREE));
3192 open_view(view, request, OPEN_DEFAULT);
3195 case REQ_VIEW_PAGER:
3196 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3197 report("No pager content, press %s to run command from prompt",
3198 get_key(REQ_PROMPT));
3201 open_view(view, request, OPEN_DEFAULT);
3204 case REQ_VIEW_STAGE:
3205 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3206 report("No stage content, press %s to open the status view and choose file",
3207 get_key(REQ_VIEW_STATUS));
3210 open_view(view, request, OPEN_DEFAULT);
3213 case REQ_VIEW_STATUS:
3214 if (opt_is_inside_work_tree == FALSE) {
3215 report("The status view requires a working tree");
3218 open_view(view, request, OPEN_DEFAULT);
3226 open_view(view, request, OPEN_DEFAULT);
3231 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3233 if ((view == VIEW(REQ_VIEW_DIFF) &&
3234 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3235 (view == VIEW(REQ_VIEW_DIFF) &&
3236 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3237 (view == VIEW(REQ_VIEW_STAGE) &&
3238 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3239 (view == VIEW(REQ_VIEW_BLOB) &&
3240 view->parent == VIEW(REQ_VIEW_TREE))) {
3243 view = view->parent;
3244 line = view->lineno;
3245 move_view(view, request);
3246 if (view_is_displayed(view))
3247 update_view_title(view);
3248 if (line != view->lineno)
3249 view->ops->request(view, REQ_ENTER,
3250 &view->line[view->lineno]);
3253 move_view(view, request);
3259 int nviews = displayed_views();
3260 int next_view = (current_view + 1) % nviews;
3262 if (next_view == current_view) {
3263 report("Only one view is displayed");
3267 current_view = next_view;
3268 /* Blur out the title of the previous view. */
3269 update_view_title(view);
3274 report("Refreshing is not yet supported for the %s view", view->name);
3278 if (displayed_views() == 2)
3279 maximize_view(view);
3282 case REQ_TOGGLE_LINENO:
3283 toggle_view_option(&opt_line_number, "line numbers");
3286 case REQ_TOGGLE_DATE:
3287 toggle_view_option(&opt_date, "date display");
3290 case REQ_TOGGLE_AUTHOR:
3291 toggle_view_option(&opt_author, "author display");
3294 case REQ_TOGGLE_REV_GRAPH:
3295 toggle_view_option(&opt_rev_graph, "revision graph display");
3298 case REQ_TOGGLE_REFS:
3299 toggle_view_option(&opt_show_refs, "reference display");
3303 case REQ_SEARCH_BACK:
3304 search_view(view, request);
3309 find_next(view, request);
3312 case REQ_STOP_LOADING:
3313 for (i = 0; i < ARRAY_SIZE(views); i++) {
3316 report("Stopped loading the %s view", view->name),
3317 end_update(view, TRUE);
3321 case REQ_SHOW_VERSION:
3322 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3325 case REQ_SCREEN_REDRAW:
3326 redraw_display(TRUE);
3330 report("Nothing to edit");
3334 report("Nothing to enter");
3337 case REQ_VIEW_CLOSE:
3338 /* XXX: Mark closed views by letting view->parent point to the
3339 * view itself. Parents to closed view should never be
3342 view->parent->parent != view->parent) {
3343 maximize_view(view->parent);
3344 view->parent = view;
3352 report("Unknown key, press 'h' for help");
3361 * View backend utilities
3365 parse_timezone(time_t *time, const char *zone)
3369 tz = ('0' - zone[1]) * 60 * 60 * 10;
3370 tz += ('0' - zone[2]) * 60 * 60;
3371 tz += ('0' - zone[3]) * 60;
3372 tz += ('0' - zone[4]);
3380 /* Parse author lines where the name may be empty:
3381 * author <email@address.tld> 1138474660 +0100
3384 parse_author_line(char *ident, char *author, size_t authorsize, struct tm *tm)
3386 char *nameend = strchr(ident, '<');
3387 char *emailend = strchr(ident, '>');
3389 if (nameend && emailend)
3390 *nameend = *emailend = 0;
3391 ident = chomp_string(ident);
3394 ident = chomp_string(nameend + 1);
3399 string_ncopy_do(author, authorsize, ident, strlen(ident));
3401 /* Parse epoch and timezone */
3402 if (emailend && emailend[1] == ' ') {
3403 char *secs = emailend + 2;
3404 char *zone = strchr(secs, ' ');
3405 time_t time = (time_t) atol(secs);
3407 if (zone && strlen(zone) == STRING_SIZE(" +0700"))
3408 parse_timezone(&time, zone + 1);
3410 gmtime_r(&time, tm);
3414 static enum input_status
3415 select_commit_parent_handler(void *data, char *buf, int c)
3417 size_t parents = *(size_t *) data;
3424 parent = atoi(buf) * 10;
3427 if (parent > parents)
3433 select_commit_parent(const char *id, char rev[SIZEOF_REV], const char *path)
3435 char buf[SIZEOF_STR * 4];
3436 const char *revlist_argv[] = {
3437 "git", "rev-list", "-1", "--parents", id, "--", path, NULL
3441 if (!run_io_buf(revlist_argv, buf, sizeof(buf)) ||
3442 !*chomp_string(buf) ||
3443 (parents = (strlen(buf) / 40) - 1) < 0) {
3444 report("Failed to get parent information");
3447 } else if (parents == 0) {
3449 report("Path '%s' does not exist in the parent", path);
3451 report("The selected commit has no parents");
3456 char prompt[SIZEOF_STR];
3459 if (!string_format(prompt, "Which parent? [1..%d] ", parents))
3461 result = prompt_input(prompt, select_commit_parent_handler, &parents);
3464 parents = atoi(result);
3467 string_copy_rev(rev, &buf[41 * parents]);
3476 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3478 char text[SIZEOF_STR];
3480 if (opt_line_number && draw_lineno(view, lineno))
3483 string_expand(text, sizeof(text), line->data, opt_tab_size);
3484 draw_text(view, line->type, text, TRUE);
3489 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3491 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3492 char refbuf[SIZEOF_STR];
3495 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3496 ref = chomp_string(refbuf);
3501 /* This is the only fatal call, since it can "corrupt" the buffer. */
3502 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3509 add_pager_refs(struct view *view, struct line *line)
3511 char buf[SIZEOF_STR];
3512 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3514 size_t bufpos = 0, refpos = 0;
3515 const char *sep = "Refs: ";
3516 bool is_tag = FALSE;
3518 assert(line->type == LINE_COMMIT);
3520 refs = get_refs(commit_id);
3522 if (view == VIEW(REQ_VIEW_DIFF))
3523 goto try_add_describe_ref;
3528 struct ref *ref = refs[refpos];
3529 const char *fmt = ref->tag ? "%s[%s]" :
3530 ref->remote ? "%s<%s>" : "%s%s";
3532 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3537 } while (refs[refpos++]->next);
3539 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3540 try_add_describe_ref:
3541 /* Add <tag>-g<commit_id> "fake" reference. */
3542 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3549 add_line_text(view, buf, LINE_PP_REFS);
3553 pager_read(struct view *view, char *data)
3560 line = add_line_text(view, data, get_line_type(data));
3564 if (line->type == LINE_COMMIT &&
3565 (view == VIEW(REQ_VIEW_DIFF) ||
3566 view == VIEW(REQ_VIEW_LOG)))
3567 add_pager_refs(view, line);
3573 pager_request(struct view *view, enum request request, struct line *line)
3577 if (request != REQ_ENTER)
3580 if (line->type == LINE_COMMIT &&
3581 (view == VIEW(REQ_VIEW_LOG) ||
3582 view == VIEW(REQ_VIEW_PAGER))) {
3583 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3587 /* Always scroll the view even if it was split. That way
3588 * you can use Enter to scroll through the log view and
3589 * split open each commit diff. */
3590 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3592 /* FIXME: A minor workaround. Scrolling the view will call report("")
3593 * but if we are scrolling a non-current view this won't properly
3594 * update the view title. */
3596 update_view_title(view);
3602 pager_grep(struct view *view, struct line *line)
3605 char *text = line->data;
3610 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3617 pager_select(struct view *view, struct line *line)
3619 if (line->type == LINE_COMMIT) {
3620 char *text = (char *)line->data + STRING_SIZE("commit ");
3622 if (view != VIEW(REQ_VIEW_PAGER))
3623 string_copy_rev(view->ref, text);
3624 string_copy_rev(ref_commit, text);
3628 static struct view_ops pager_ops = {
3639 static const char *log_argv[SIZEOF_ARG] = {
3640 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3644 log_request(struct view *view, enum request request, struct line *line)
3649 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3652 return pager_request(view, request, line);
3656 static struct view_ops log_ops = {
3667 static const char *diff_argv[SIZEOF_ARG] = {
3668 "git", "show", "--pretty=fuller", "--no-color", "--root",
3669 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3672 static struct view_ops diff_ops = {
3688 help_open(struct view *view)
3690 char buf[SIZEOF_STR];
3694 if (view->lines > 0)
3697 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3699 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3702 if (req_info[i].request == REQ_NONE)
3705 if (!req_info[i].request) {
3706 add_line_text(view, "", LINE_DEFAULT);
3707 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3711 key = get_key(req_info[i].request);
3713 key = "(no key defined)";
3715 for (bufpos = 0; bufpos <= req_info[i].namelen; bufpos++) {
3716 buf[bufpos] = tolower(req_info[i].name[bufpos]);
3717 if (buf[bufpos] == '_')
3721 add_line_format(view, LINE_DEFAULT, " %-25s %-20s %s",
3722 key, buf, req_info[i].help);
3726 add_line_text(view, "", LINE_DEFAULT);
3727 add_line_text(view, "External commands:", LINE_DEFAULT);
3730 for (i = 0; i < run_requests; i++) {
3731 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3738 key = get_key_name(req->key);
3740 key = "(no key defined)";
3742 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3743 if (!string_format_from(buf, &bufpos, "%s%s",
3744 argc ? " " : "", req->argv[argc]))
3747 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3748 keymap_table[req->keymap].name, key, buf);
3754 static struct view_ops help_ops = {
3770 struct tree_stack_entry {
3771 struct tree_stack_entry *prev; /* Entry below this in the stack */
3772 unsigned long lineno; /* Line number to restore */
3773 char *name; /* Position of name in opt_path */
3776 /* The top of the path stack. */
3777 static struct tree_stack_entry *tree_stack = NULL;
3778 unsigned long tree_lineno = 0;
3781 pop_tree_stack_entry(void)
3783 struct tree_stack_entry *entry = tree_stack;
3785 tree_lineno = entry->lineno;
3787 tree_stack = entry->prev;
3792 push_tree_stack_entry(const char *name, unsigned long lineno)
3794 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3795 size_t pathlen = strlen(opt_path);
3800 entry->prev = tree_stack;
3801 entry->name = opt_path + pathlen;
3804 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3805 pop_tree_stack_entry();
3809 /* Move the current line to the first tree entry. */
3811 entry->lineno = lineno;
3814 /* Parse output from git-ls-tree(1):
3816 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3819 #define SIZEOF_TREE_ATTR \
3820 STRING_SIZE("100644 blob f931e1d229c3e185caad4449bf5b66ed72462657\t")
3822 #define SIZEOF_TREE_MODE \
3823 STRING_SIZE("100644 ")
3825 #define TREE_ID_OFFSET \
3826 STRING_SIZE("100644 blob ")
3829 char id[SIZEOF_REV];
3831 struct tm time; /* Date from the author ident. */
3832 char author[75]; /* Author of the commit. */
3837 tree_path(struct line *line)
3839 return ((struct tree_entry *) line->data)->name;
3844 tree_compare_entry(struct line *line1, struct line *line2)
3846 if (line1->type != line2->type)
3847 return line1->type == LINE_TREE_DIR ? -1 : 1;
3848 return strcmp(tree_path(line1), tree_path(line2));
3851 static struct line *
3852 tree_entry(struct view *view, enum line_type type, const char *path,
3853 const char *mode, const char *id)
3855 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3856 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3858 if (!entry || !line) {
3863 strncpy(entry->name, path, strlen(path));
3865 entry->mode = strtoul(mode, NULL, 8);
3867 string_copy_rev(entry->id, id);
3873 tree_read_date(struct view *view, char *text, bool *read_date)
3875 static char author_name[SIZEOF_STR];
3876 static struct tm author_time;
3878 if (!text && *read_date) {
3883 char *path = *opt_path ? opt_path : ".";
3884 /* Find next entry to process */
3885 const char *log_file[] = {
3886 "git", "log", "--no-color", "--pretty=raw",
3887 "--cc", "--raw", view->id, "--", path, NULL
3892 tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL);
3893 report("Tree is empty");
3897 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3898 report("Failed to load tree data");
3902 done_io(view->pipe);
3907 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3908 parse_author_line(text + STRING_SIZE("author "),
3909 author_name, sizeof(author_name), &author_time);
3911 } else if (*text == ':') {
3913 size_t annotated = 1;
3916 pos = strchr(text, '\t');
3920 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3921 text += strlen(opt_prefix);
3922 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3923 text += strlen(opt_path);
3924 pos = strchr(text, '/');
3928 for (i = 1; i < view->lines; i++) {
3929 struct line *line = &view->line[i];
3930 struct tree_entry *entry = line->data;
3932 annotated += !!*entry->author;
3933 if (*entry->author || strcmp(entry->name, text))
3936 string_copy(entry->author, author_name);
3937 memcpy(&entry->time, &author_time, sizeof(entry->time));
3942 if (annotated == view->lines)
3943 kill_io(view->pipe);
3949 tree_read(struct view *view, char *text)
3951 static bool read_date = FALSE;
3952 struct tree_entry *data;
3953 struct line *entry, *line;
3954 enum line_type type;
3955 size_t textlen = text ? strlen(text) : 0;
3956 char *path = text + SIZEOF_TREE_ATTR;
3958 if (read_date || !text)
3959 return tree_read_date(view, text, &read_date);
3961 if (textlen <= SIZEOF_TREE_ATTR)
3963 if (view->lines == 0 &&
3964 !tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL))
3967 /* Strip the path part ... */
3969 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3970 size_t striplen = strlen(opt_path);
3972 if (pathlen > striplen)
3973 memmove(path, path + striplen,
3974 pathlen - striplen + 1);
3976 /* Insert "link" to parent directory. */
3977 if (view->lines == 1 &&
3978 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3982 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
3983 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3988 /* Skip "Directory ..." and ".." line. */
3989 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3990 if (tree_compare_entry(line, entry) <= 0)
3993 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3997 for (; line <= entry; line++)
3998 line->dirty = line->cleareol = 1;
4002 if (tree_lineno > view->lineno) {
4003 view->lineno = tree_lineno;
4011 tree_draw(struct view *view, struct line *line, unsigned int lineno)
4013 struct tree_entry *entry = line->data;
4015 if (line->type == LINE_TREE_HEAD) {
4016 if (draw_text(view, line->type, "Directory path /", TRUE))
4019 if (draw_mode(view, entry->mode))
4022 if (opt_author && draw_author(view, entry->author))
4025 if (opt_date && draw_date(view, *entry->author ? &entry->time : NULL))
4028 if (draw_text(view, line->type, entry->name, TRUE))
4036 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
4037 int fd = mkstemp(file);
4040 report("Failed to create temporary file");
4041 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
4042 report("Failed to save blob data to file");
4044 open_editor(FALSE, file);
4050 tree_request(struct view *view, enum request request, struct line *line)
4052 enum open_flags flags;
4055 case REQ_VIEW_BLAME:
4056 if (line->type != LINE_TREE_FILE) {
4057 report("Blame only supported for files");
4061 string_copy(opt_ref, view->vid);
4065 if (line->type != LINE_TREE_FILE) {
4066 report("Edit only supported for files");
4067 } else if (!is_head_commit(view->vid)) {
4070 open_editor(TRUE, opt_file);
4076 /* quit view if at top of tree */
4077 return REQ_VIEW_CLOSE;
4080 line = &view->line[1];
4090 /* Cleanup the stack if the tree view is at a different tree. */
4091 while (!*opt_path && tree_stack)
4092 pop_tree_stack_entry();
4094 switch (line->type) {
4096 /* Depending on whether it is a subdirectory or parent link
4097 * mangle the path buffer. */
4098 if (line == &view->line[1] && *opt_path) {
4099 pop_tree_stack_entry();
4102 const char *basename = tree_path(line);
4104 push_tree_stack_entry(basename, view->lineno);
4107 /* Trees and subtrees share the same ID, so they are not not
4108 * unique like blobs. */
4109 flags = OPEN_RELOAD;
4110 request = REQ_VIEW_TREE;
4113 case LINE_TREE_FILE:
4114 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4115 request = REQ_VIEW_BLOB;
4122 open_view(view, request, flags);
4123 if (request == REQ_VIEW_TREE)
4124 view->lineno = tree_lineno;
4130 tree_select(struct view *view, struct line *line)
4132 struct tree_entry *entry = line->data;
4134 if (line->type == LINE_TREE_FILE) {
4135 string_copy_rev(ref_blob, entry->id);
4136 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4138 } else if (line->type != LINE_TREE_DIR) {
4142 string_copy_rev(view->ref, entry->id);
4145 static const char *tree_argv[SIZEOF_ARG] = {
4146 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4149 static struct view_ops tree_ops = {
4161 blob_read(struct view *view, char *line)
4165 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4169 blob_request(struct view *view, enum request request, struct line *line)
4176 return pager_request(view, request, line);
4180 static const char *blob_argv[SIZEOF_ARG] = {
4181 "git", "cat-file", "blob", "%(blob)", NULL
4184 static struct view_ops blob_ops = {
4198 * Loading the blame view is a two phase job:
4200 * 1. File content is read either using opt_file from the
4201 * filesystem or using git-cat-file.
4202 * 2. Then blame information is incrementally added by
4203 * reading output from git-blame.
4206 static const char *blame_head_argv[] = {
4207 "git", "blame", "--incremental", "--", "%(file)", NULL
4210 static const char *blame_ref_argv[] = {
4211 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4214 static const char *blame_cat_file_argv[] = {
4215 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4218 struct blame_commit {
4219 char id[SIZEOF_REV]; /* SHA1 ID. */
4220 char title[128]; /* First line of the commit message. */
4221 char author[75]; /* Author of the commit. */
4222 struct tm time; /* Date from the author ident. */
4223 char filename[128]; /* Name of file. */
4224 bool has_previous; /* Was a "previous" line detected. */
4228 struct blame_commit *commit;
4229 unsigned long lineno;
4234 blame_open(struct view *view)
4236 if (*opt_ref || !io_open(&view->io, opt_file)) {
4237 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4241 setup_update(view, opt_file);
4242 string_format(view->ref, "%s ...", opt_file);
4247 static struct blame_commit *
4248 get_blame_commit(struct view *view, const char *id)
4252 for (i = 0; i < view->lines; i++) {
4253 struct blame *blame = view->line[i].data;
4258 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4259 return blame->commit;
4263 struct blame_commit *commit = calloc(1, sizeof(*commit));
4266 string_ncopy(commit->id, id, SIZEOF_REV);
4272 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4274 const char *pos = *posref;
4277 pos = strchr(pos + 1, ' ');
4278 if (!pos || !isdigit(pos[1]))
4280 *number = atoi(pos + 1);
4281 if (*number < min || *number > max)
4288 static struct blame_commit *
4289 parse_blame_commit(struct view *view, const char *text, int *blamed)
4291 struct blame_commit *commit;
4292 struct blame *blame;
4293 const char *pos = text + SIZEOF_REV - 2;
4294 size_t orig_lineno = 0;
4298 if (strlen(text) <= SIZEOF_REV || pos[1] != ' ')
4301 if (!parse_number(&pos, &orig_lineno, 1, 9999999) ||
4302 !parse_number(&pos, &lineno, 1, view->lines) ||
4303 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4306 commit = get_blame_commit(view, text);
4312 struct line *line = &view->line[lineno + group - 1];
4315 blame->commit = commit;
4316 blame->lineno = orig_lineno + group - 1;
4324 blame_read_file(struct view *view, const char *line, bool *read_file)
4327 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4330 if (view->lines == 0 && !view->parent)
4331 die("No blame exist for %s", view->vid);
4333 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4334 report("Failed to load blame data");
4338 done_io(view->pipe);
4344 size_t linelen = strlen(line);
4345 struct blame *blame = malloc(sizeof(*blame) + linelen);
4350 blame->commit = NULL;
4351 strncpy(blame->text, line, linelen);
4352 blame->text[linelen] = 0;
4353 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4358 match_blame_header(const char *name, char **line)
4360 size_t namelen = strlen(name);
4361 bool matched = !strncmp(name, *line, namelen);
4370 blame_read(struct view *view, char *line)
4372 static struct blame_commit *commit = NULL;
4373 static int blamed = 0;
4374 static time_t author_time;
4375 static bool read_file = TRUE;
4378 return blame_read_file(view, line, &read_file);
4385 string_format(view->ref, "%s", view->vid);
4386 if (view_is_displayed(view)) {
4387 update_view_title(view);
4388 redraw_view_from(view, 0);
4394 commit = parse_blame_commit(view, line, &blamed);
4395 string_format(view->ref, "%s %2d%%", view->vid,
4396 view->lines ? blamed * 100 / view->lines : 0);
4398 } else if (match_blame_header("author ", &line)) {
4399 string_ncopy(commit->author, line, strlen(line));
4401 } else if (match_blame_header("author-time ", &line)) {
4402 author_time = (time_t) atol(line);
4404 } else if (match_blame_header("author-tz ", &line)) {
4405 parse_timezone(&author_time, line);
4406 gmtime_r(&author_time, &commit->time);
4408 } else if (match_blame_header("summary ", &line)) {
4409 string_ncopy(commit->title, line, strlen(line));
4411 } else if (match_blame_header("previous ", &line)) {
4412 commit->has_previous = TRUE;
4414 } else if (match_blame_header("filename ", &line)) {
4415 string_ncopy(commit->filename, line, strlen(line));
4423 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4425 struct blame *blame = line->data;
4426 struct tm *time = NULL;
4427 const char *id = NULL, *author = NULL;
4428 char text[SIZEOF_STR];
4430 if (blame->commit && *blame->commit->filename) {
4431 id = blame->commit->id;
4432 author = blame->commit->author;
4433 time = &blame->commit->time;
4436 if (opt_date && draw_date(view, time))
4439 if (opt_author && draw_author(view, author))
4442 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4445 if (draw_lineno(view, lineno))
4448 string_expand(text, sizeof(text), blame->text, opt_tab_size);
4449 draw_text(view, LINE_DEFAULT, text, TRUE);
4454 check_blame_commit(struct blame *blame, bool check_null_id)
4457 report("Commit data not loaded yet");
4458 else if (check_null_id && !strcmp(blame->commit->id, NULL_ID))
4459 report("No commit exist for the selected line");
4466 setup_blame_parent_line(struct view *view, struct blame *blame)
4468 const char *diff_tree_argv[] = {
4469 "git", "diff-tree", "-U0", blame->commit->id,
4470 "--", blame->commit->filename, NULL
4473 int parent_lineno = -1;
4474 int blamed_lineno = -1;
4477 if (!run_io(&io, diff_tree_argv, NULL, IO_RD))
4480 while ((line = io_get(&io, '\n', TRUE))) {
4482 char *pos = strchr(line, '+');
4484 parent_lineno = atoi(line + 4);
4486 blamed_lineno = atoi(pos + 1);
4488 } else if (*line == '+' && parent_lineno != -1) {
4489 if (blame->lineno == blamed_lineno - 1 &&
4490 !strcmp(blame->text, line + 1)) {
4491 view->lineno = parent_lineno ? parent_lineno - 1 : 0;
4502 blame_request(struct view *view, enum request request, struct line *line)
4504 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4505 struct blame *blame = line->data;
4508 case REQ_VIEW_BLAME:
4509 if (check_blame_commit(blame, TRUE)) {
4510 string_copy(opt_ref, blame->commit->id);
4511 string_copy(opt_file, blame->commit->filename);
4513 view->lineno = blame->lineno;
4514 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4519 if (check_blame_commit(blame, TRUE) &&
4520 select_commit_parent(blame->commit->id, opt_ref,
4521 blame->commit->filename)) {
4522 string_copy(opt_file, blame->commit->filename);
4523 setup_blame_parent_line(view, blame);
4524 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4529 if (!check_blame_commit(blame, FALSE))
4532 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4533 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4536 if (!strcmp(blame->commit->id, NULL_ID)) {
4537 struct view *diff = VIEW(REQ_VIEW_DIFF);
4538 const char *diff_index_argv[] = {
4539 "git", "diff-index", "--root", "--patch-with-stat",
4540 "-C", "-M", "HEAD", "--", view->vid, NULL
4543 if (!blame->commit->has_previous) {
4544 diff_index_argv[1] = "diff";
4545 diff_index_argv[2] = "--no-color";
4546 diff_index_argv[6] = "--";
4547 diff_index_argv[7] = "/dev/null";
4550 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4551 report("Failed to allocate diff command");
4554 flags |= OPEN_PREPARED;
4557 open_view(view, REQ_VIEW_DIFF, flags);
4558 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4559 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4570 blame_grep(struct view *view, struct line *line)
4572 struct blame *blame = line->data;
4573 struct blame_commit *commit = blame->commit;
4576 #define MATCH(text, on) \
4577 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4580 char buf[DATE_COLS + 1];
4582 if (MATCH(commit->title, 1) ||
4583 MATCH(commit->author, opt_author) ||
4584 MATCH(commit->id, opt_date))
4587 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4592 return MATCH(blame->text, 1);
4598 blame_select(struct view *view, struct line *line)
4600 struct blame *blame = line->data;
4601 struct blame_commit *commit = blame->commit;
4606 if (!strcmp(commit->id, NULL_ID))
4607 string_ncopy(ref_commit, "HEAD", 4);
4609 string_copy_rev(ref_commit, commit->id);
4612 static struct view_ops blame_ops = {
4631 char rev[SIZEOF_REV];
4632 char name[SIZEOF_STR];
4636 char rev[SIZEOF_REV];
4637 char name[SIZEOF_STR];
4641 static char status_onbranch[SIZEOF_STR];
4642 static struct status stage_status;
4643 static enum line_type stage_line_type;
4644 static size_t stage_chunks;
4645 static int *stage_chunk;
4647 /* This should work even for the "On branch" line. */
4649 status_has_none(struct view *view, struct line *line)
4651 return line < view->line + view->lines && !line[1].data;
4654 /* Get fields from the diff line:
4655 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4658 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4660 const char *old_mode = buf + 1;
4661 const char *new_mode = buf + 8;
4662 const char *old_rev = buf + 15;
4663 const char *new_rev = buf + 56;
4664 const char *status = buf + 97;
4667 old_mode[-1] != ':' ||
4668 new_mode[-1] != ' ' ||
4669 old_rev[-1] != ' ' ||
4670 new_rev[-1] != ' ' ||
4674 file->status = *status;
4676 string_copy_rev(file->old.rev, old_rev);
4677 string_copy_rev(file->new.rev, new_rev);
4679 file->old.mode = strtoul(old_mode, NULL, 8);
4680 file->new.mode = strtoul(new_mode, NULL, 8);
4682 file->old.name[0] = file->new.name[0] = 0;
4688 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4690 struct status *unmerged = NULL;
4694 if (!run_io(&io, argv, NULL, IO_RD))
4697 add_line_data(view, NULL, type);
4699 while ((buf = io_get(&io, 0, TRUE))) {
4700 struct status *file = unmerged;
4703 file = calloc(1, sizeof(*file));
4704 if (!file || !add_line_data(view, file, type))
4708 /* Parse diff info part. */
4710 file->status = status;
4712 string_copy(file->old.rev, NULL_ID);
4714 } else if (!file->status || file == unmerged) {
4715 if (!status_get_diff(file, buf, strlen(buf)))
4718 buf = io_get(&io, 0, TRUE);
4722 /* Collapse all modified entries that follow an
4723 * associated unmerged entry. */
4724 if (unmerged == file) {
4725 unmerged->status = 'U';
4727 } else if (file->status == 'U') {
4732 /* Grab the old name for rename/copy. */
4733 if (!*file->old.name &&
4734 (file->status == 'R' || file->status == 'C')) {
4735 string_ncopy(file->old.name, buf, strlen(buf));
4737 buf = io_get(&io, 0, TRUE);
4742 /* git-ls-files just delivers a NUL separated list of
4743 * file names similar to the second half of the
4744 * git-diff-* output. */
4745 string_ncopy(file->new.name, buf, strlen(buf));
4746 if (!*file->old.name)
4747 string_copy(file->old.name, file->new.name);
4751 if (io_error(&io)) {
4757 if (!view->line[view->lines - 1].data)
4758 add_line_data(view, NULL, LINE_STAT_NONE);
4764 /* Don't show unmerged entries in the staged section. */
4765 static const char *status_diff_index_argv[] = {
4766 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4767 "--cached", "-M", "HEAD", NULL
4770 static const char *status_diff_files_argv[] = {
4771 "git", "diff-files", "-z", NULL
4774 static const char *status_list_other_argv[] = {
4775 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4778 static const char *status_list_no_head_argv[] = {
4779 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4782 static const char *update_index_argv[] = {
4783 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4786 /* Restore the previous line number to stay in the context or select a
4787 * line with something that can be updated. */
4789 status_restore(struct view *view)
4791 if (view->p_lineno >= view->lines)
4792 view->p_lineno = view->lines - 1;
4793 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4795 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4798 /* If the above fails, always skip the "On branch" line. */
4799 if (view->p_lineno < view->lines)
4800 view->lineno = view->p_lineno;
4804 if (view->lineno < view->offset)
4805 view->offset = view->lineno;
4806 else if (view->offset + view->height <= view->lineno)
4807 view->offset = view->lineno - view->height + 1;
4809 view->p_restore = FALSE;
4813 status_update_onbranch(void)
4815 static const char *paths[][2] = {
4816 { "rebase-apply/rebasing", "Rebasing" },
4817 { "rebase-apply/applying", "Applying mailbox" },
4818 { "rebase-apply/", "Rebasing mailbox" },
4819 { "rebase-merge/interactive", "Interactive rebase" },
4820 { "rebase-merge/", "Rebase merge" },
4821 { "MERGE_HEAD", "Merging" },
4822 { "BISECT_LOG", "Bisecting" },
4823 { "HEAD", "On branch" },
4825 char buf[SIZEOF_STR];
4829 if (is_initial_commit()) {
4830 string_copy(status_onbranch, "Initial commit");
4834 for (i = 0; i < ARRAY_SIZE(paths); i++) {
4835 char *head = opt_head;
4837 if (!string_format(buf, "%s/%s", opt_git_dir, paths[i][0]) ||
4838 lstat(buf, &stat) < 0)
4844 if (string_format(buf, "%s/rebase-merge/head-name", opt_git_dir) &&
4845 io_open(&io, buf) &&
4846 io_read_buf(&io, buf, sizeof(buf))) {
4847 head = chomp_string(buf);
4848 if (!prefixcmp(head, "refs/heads/"))
4849 head += STRING_SIZE("refs/heads/");
4853 if (!string_format(status_onbranch, "%s %s", paths[i][1], head))
4854 string_copy(status_onbranch, opt_head);
4858 string_copy(status_onbranch, "Not currently on any branch");
4861 /* First parse staged info using git-diff-index(1), then parse unstaged
4862 * info using git-diff-files(1), and finally untracked files using
4863 * git-ls-files(1). */
4865 status_open(struct view *view)
4869 add_line_data(view, NULL, LINE_STAT_HEAD);
4870 status_update_onbranch();
4872 run_io_bg(update_index_argv);
4874 if (is_initial_commit()) {
4875 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4877 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4881 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4882 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4885 /* Restore the exact position or use the specialized restore
4887 if (!view->p_restore)
4888 status_restore(view);
4893 status_draw(struct view *view, struct line *line, unsigned int lineno)
4895 struct status *status = line->data;
4896 enum line_type type;
4900 switch (line->type) {
4901 case LINE_STAT_STAGED:
4902 type = LINE_STAT_SECTION;
4903 text = "Changes to be committed:";
4906 case LINE_STAT_UNSTAGED:
4907 type = LINE_STAT_SECTION;
4908 text = "Changed but not updated:";
4911 case LINE_STAT_UNTRACKED:
4912 type = LINE_STAT_SECTION;
4913 text = "Untracked files:";
4916 case LINE_STAT_NONE:
4917 type = LINE_DEFAULT;
4918 text = " (no files)";
4921 case LINE_STAT_HEAD:
4922 type = LINE_STAT_HEAD;
4923 text = status_onbranch;
4930 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4932 buf[0] = status->status;
4933 if (draw_text(view, line->type, buf, TRUE))
4935 type = LINE_DEFAULT;
4936 text = status->new.name;
4939 draw_text(view, type, text, TRUE);
4944 status_load_error(struct view *view, struct view *stage, const char *path)
4946 if (displayed_views() == 2 || display[current_view] != view)
4947 maximize_view(view);
4948 report("Failed to load '%s': %s", path, io_strerror(&stage->io));
4953 status_enter(struct view *view, struct line *line)
4955 struct status *status = line->data;
4956 const char *oldpath = status ? status->old.name : NULL;
4957 /* Diffs for unmerged entries are empty when passing the new
4958 * path, so leave it empty. */
4959 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4961 enum open_flags split;
4962 struct view *stage = VIEW(REQ_VIEW_STAGE);
4964 if (line->type == LINE_STAT_NONE ||
4965 (!status && line[1].type == LINE_STAT_NONE)) {
4966 report("No file to diff");
4970 switch (line->type) {
4971 case LINE_STAT_STAGED:
4972 if (is_initial_commit()) {
4973 const char *no_head_diff_argv[] = {
4974 "git", "diff", "--no-color", "--patch-with-stat",
4975 "--", "/dev/null", newpath, NULL
4978 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4979 return status_load_error(view, stage, newpath);
4981 const char *index_show_argv[] = {
4982 "git", "diff-index", "--root", "--patch-with-stat",
4983 "-C", "-M", "--cached", "HEAD", "--",
4984 oldpath, newpath, NULL
4987 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4988 return status_load_error(view, stage, newpath);
4992 info = "Staged changes to %s";
4994 info = "Staged changes";
4997 case LINE_STAT_UNSTAGED:
4999 const char *files_show_argv[] = {
5000 "git", "diff-files", "--root", "--patch-with-stat",
5001 "-C", "-M", "--", oldpath, newpath, NULL
5004 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
5005 return status_load_error(view, stage, newpath);
5007 info = "Unstaged changes to %s";
5009 info = "Unstaged changes";
5012 case LINE_STAT_UNTRACKED:
5014 report("No file to show");
5018 if (!suffixcmp(status->new.name, -1, "/")) {
5019 report("Cannot display a directory");
5023 if (!prepare_update_file(stage, newpath))
5024 return status_load_error(view, stage, newpath);
5025 info = "Untracked file %s";
5028 case LINE_STAT_HEAD:
5032 die("line type %d not handled in switch", line->type);
5035 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
5036 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
5037 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
5039 stage_status = *status;
5041 memset(&stage_status, 0, sizeof(stage_status));
5044 stage_line_type = line->type;
5046 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
5053 status_exists(struct status *status, enum line_type type)
5055 struct view *view = VIEW(REQ_VIEW_STATUS);
5056 unsigned long lineno;
5058 for (lineno = 0; lineno < view->lines; lineno++) {
5059 struct line *line = &view->line[lineno];
5060 struct status *pos = line->data;
5062 if (line->type != type)
5064 if (!pos && (!status || !status->status) && line[1].data) {
5065 select_view_line(view, lineno);
5068 if (pos && !strcmp(status->new.name, pos->new.name)) {
5069 select_view_line(view, lineno);
5079 status_update_prepare(struct io *io, enum line_type type)
5081 const char *staged_argv[] = {
5082 "git", "update-index", "-z", "--index-info", NULL
5084 const char *others_argv[] = {
5085 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
5089 case LINE_STAT_STAGED:
5090 return run_io(io, staged_argv, opt_cdup, IO_WR);
5092 case LINE_STAT_UNSTAGED:
5093 return run_io(io, others_argv, opt_cdup, IO_WR);
5095 case LINE_STAT_UNTRACKED:
5096 return run_io(io, others_argv, NULL, IO_WR);
5099 die("line type %d not handled in switch", type);
5105 status_update_write(struct io *io, struct status *status, enum line_type type)
5107 char buf[SIZEOF_STR];
5111 case LINE_STAT_STAGED:
5112 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
5115 status->old.name, 0))
5119 case LINE_STAT_UNSTAGED:
5120 case LINE_STAT_UNTRACKED:
5121 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
5126 die("line type %d not handled in switch", type);
5129 return io_write(io, buf, bufsize);
5133 status_update_file(struct status *status, enum line_type type)
5138 if (!status_update_prepare(&io, type))
5141 result = status_update_write(&io, status, type);
5142 return done_io(&io) && result;
5146 status_update_files(struct view *view, struct line *line)
5148 char buf[sizeof(view->ref)];
5151 struct line *pos = view->line + view->lines;
5155 if (!status_update_prepare(&io, line->type))
5158 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5161 string_copy(buf, view->ref);
5162 for (file = 0, done = 5; result && file < files; line++, file++) {
5163 int almost_done = file * 100 / files;
5165 if (almost_done > done) {
5167 string_format(view->ref, "updating file %u of %u (%d%% done)",
5169 update_view_title(view);
5172 result = status_update_write(&io, line->data, line->type);
5174 string_copy(view->ref, buf);
5176 return done_io(&io) && result;
5180 status_update(struct view *view)
5182 struct line *line = &view->line[view->lineno];
5184 assert(view->lines);
5187 /* This should work even for the "On branch" line. */
5188 if (line < view->line + view->lines && !line[1].data) {
5189 report("Nothing to update");
5193 if (!status_update_files(view, line + 1)) {
5194 report("Failed to update file status");
5198 } else if (!status_update_file(line->data, line->type)) {
5199 report("Failed to update file status");
5207 status_revert(struct status *status, enum line_type type, bool has_none)
5209 if (!status || type != LINE_STAT_UNSTAGED) {
5210 if (type == LINE_STAT_STAGED) {
5211 report("Cannot revert changes to staged files");
5212 } else if (type == LINE_STAT_UNTRACKED) {
5213 report("Cannot revert changes to untracked files");
5214 } else if (has_none) {
5215 report("Nothing to revert");
5217 report("Cannot revert changes to multiple files");
5222 char mode[10] = "100644";
5223 const char *reset_argv[] = {
5224 "git", "update-index", "--cacheinfo", mode,
5225 status->old.rev, status->old.name, NULL
5227 const char *checkout_argv[] = {
5228 "git", "checkout", "--", status->old.name, NULL
5231 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5233 string_format(mode, "%o", status->old.mode);
5234 return (status->status != 'U' || run_io_fg(reset_argv, opt_cdup)) &&
5235 run_io_fg(checkout_argv, opt_cdup);
5240 status_request(struct view *view, enum request request, struct line *line)
5242 struct status *status = line->data;
5245 case REQ_STATUS_UPDATE:
5246 if (!status_update(view))
5250 case REQ_STATUS_REVERT:
5251 if (!status_revert(status, line->type, status_has_none(view, line)))
5255 case REQ_STATUS_MERGE:
5256 if (!status || status->status != 'U') {
5257 report("Merging only possible for files with unmerged status ('U').");
5260 open_mergetool(status->new.name);
5266 if (status->status == 'D') {
5267 report("File has been deleted.");
5271 open_editor(status->status != '?', status->new.name);
5274 case REQ_VIEW_BLAME:
5276 string_copy(opt_file, status->new.name);
5282 /* After returning the status view has been split to
5283 * show the stage view. No further reloading is
5285 return status_enter(view, line);
5288 /* Simply reload the view. */
5295 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5301 status_select(struct view *view, struct line *line)
5303 struct status *status = line->data;
5304 char file[SIZEOF_STR] = "all files";
5308 if (status && !string_format(file, "'%s'", status->new.name))
5311 if (!status && line[1].type == LINE_STAT_NONE)
5314 switch (line->type) {
5315 case LINE_STAT_STAGED:
5316 text = "Press %s to unstage %s for commit";
5319 case LINE_STAT_UNSTAGED:
5320 text = "Press %s to stage %s for commit";
5323 case LINE_STAT_UNTRACKED:
5324 text = "Press %s to stage %s for addition";
5327 case LINE_STAT_HEAD:
5328 case LINE_STAT_NONE:
5329 text = "Nothing to update";
5333 die("line type %d not handled in switch", line->type);
5336 if (status && status->status == 'U') {
5337 text = "Press %s to resolve conflict in %s";
5338 key = get_key(REQ_STATUS_MERGE);
5341 key = get_key(REQ_STATUS_UPDATE);
5344 string_format(view->ref, text, key, file);
5348 status_grep(struct view *view, struct line *line)
5350 struct status *status = line->data;
5351 enum { S_STATUS, S_NAME, S_END } state;
5358 for (state = S_STATUS; state < S_END; state++) {
5362 case S_NAME: text = status->new.name; break;
5364 buf[0] = status->status;
5372 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5379 static struct view_ops status_ops = {
5392 stage_diff_write(struct io *io, struct line *line, struct line *end)
5394 while (line < end) {
5395 if (!io_write(io, line->data, strlen(line->data)) ||
5396 !io_write(io, "\n", 1))
5399 if (line->type == LINE_DIFF_CHUNK ||
5400 line->type == LINE_DIFF_HEADER)
5407 static struct line *
5408 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5410 for (; view->line < line; line--)
5411 if (line->type == type)
5418 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5420 const char *apply_argv[SIZEOF_ARG] = {
5421 "git", "apply", "--whitespace=nowarn", NULL
5423 struct line *diff_hdr;
5427 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5432 apply_argv[argc++] = "--cached";
5433 if (revert || stage_line_type == LINE_STAT_STAGED)
5434 apply_argv[argc++] = "-R";
5435 apply_argv[argc++] = "-";
5436 apply_argv[argc++] = NULL;
5437 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5440 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5441 !stage_diff_write(&io, chunk, view->line + view->lines))
5445 run_io_bg(update_index_argv);
5447 return chunk ? TRUE : FALSE;
5451 stage_update(struct view *view, struct line *line)
5453 struct line *chunk = NULL;
5455 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5456 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5459 if (!stage_apply_chunk(view, chunk, FALSE)) {
5460 report("Failed to apply chunk");
5464 } else if (!stage_status.status) {
5465 view = VIEW(REQ_VIEW_STATUS);
5467 for (line = view->line; line < view->line + view->lines; line++)
5468 if (line->type == stage_line_type)
5471 if (!status_update_files(view, line + 1)) {
5472 report("Failed to update files");
5476 } else if (!status_update_file(&stage_status, stage_line_type)) {
5477 report("Failed to update file");
5485 stage_revert(struct view *view, struct line *line)
5487 struct line *chunk = NULL;
5489 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5490 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5493 if (!prompt_yesno("Are you sure you want to revert changes?"))
5496 if (!stage_apply_chunk(view, chunk, TRUE)) {
5497 report("Failed to revert chunk");
5503 return status_revert(stage_status.status ? &stage_status : NULL,
5504 stage_line_type, FALSE);
5510 stage_next(struct view *view, struct line *line)
5514 if (!stage_chunks) {
5515 static size_t alloc = 0;
5518 for (line = view->line; line < view->line + view->lines; line++) {
5519 if (line->type != LINE_DIFF_CHUNK)
5522 tmp = realloc_items(stage_chunk, &alloc,
5523 stage_chunks, sizeof(*tmp));
5525 report("Allocation failure");
5530 stage_chunk[stage_chunks++] = line - view->line;
5534 for (i = 0; i < stage_chunks; i++) {
5535 if (stage_chunk[i] > view->lineno) {
5536 do_scroll_view(view, stage_chunk[i] - view->lineno);
5537 report("Chunk %d of %d", i + 1, stage_chunks);
5542 report("No next chunk found");
5546 stage_request(struct view *view, enum request request, struct line *line)
5549 case REQ_STATUS_UPDATE:
5550 if (!stage_update(view, line))
5554 case REQ_STATUS_REVERT:
5555 if (!stage_revert(view, line))
5559 case REQ_STAGE_NEXT:
5560 if (stage_line_type == LINE_STAT_UNTRACKED) {
5561 report("File is untracked; press %s to add",
5562 get_key(REQ_STATUS_UPDATE));
5565 stage_next(view, line);
5569 if (!stage_status.new.name[0])
5571 if (stage_status.status == 'D') {
5572 report("File has been deleted.");
5576 open_editor(stage_status.status != '?', stage_status.new.name);
5580 /* Reload everything ... */
5583 case REQ_VIEW_BLAME:
5584 if (stage_status.new.name[0]) {
5585 string_copy(opt_file, stage_status.new.name);
5591 return pager_request(view, request, line);
5597 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5598 open_view(view, REQ_VIEW_STATUS, OPEN_REFRESH);
5600 /* Check whether the staged entry still exists, and close the
5601 * stage view if it doesn't. */
5602 if (!status_exists(&stage_status, stage_line_type)) {
5603 status_restore(VIEW(REQ_VIEW_STATUS));
5604 return REQ_VIEW_CLOSE;
5607 if (stage_line_type == LINE_STAT_UNTRACKED) {
5608 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5609 report("Cannot display a directory");
5613 if (!prepare_update_file(view, stage_status.new.name)) {
5614 report("Failed to open file: %s", strerror(errno));
5618 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5623 static struct view_ops stage_ops = {
5640 char id[SIZEOF_REV]; /* SHA1 ID. */
5641 char title[128]; /* First line of the commit message. */
5642 char author[75]; /* Author of the commit. */
5643 struct tm time; /* Date from the author ident. */
5644 struct ref **refs; /* Repository references. */
5645 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5646 size_t graph_size; /* The width of the graph array. */
5647 bool has_parents; /* Rewritten --parents seen. */
5650 /* Size of rev graph with no "padding" columns */
5651 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5654 struct rev_graph *prev, *next, *parents;
5655 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5657 struct commit *commit;
5659 unsigned int boundary:1;
5662 /* Parents of the commit being visualized. */
5663 static struct rev_graph graph_parents[4];
5665 /* The current stack of revisions on the graph. */
5666 static struct rev_graph graph_stacks[4] = {
5667 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5668 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5669 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5670 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5674 graph_parent_is_merge(struct rev_graph *graph)
5676 return graph->parents->size > 1;
5680 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5682 struct commit *commit = graph->commit;
5684 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5685 commit->graph[commit->graph_size++] = symbol;
5689 clear_rev_graph(struct rev_graph *graph)
5691 graph->boundary = 0;
5692 graph->size = graph->pos = 0;
5693 graph->commit = NULL;
5694 memset(graph->parents, 0, sizeof(*graph->parents));
5698 done_rev_graph(struct rev_graph *graph)
5700 if (graph_parent_is_merge(graph) &&
5701 graph->pos < graph->size - 1 &&
5702 graph->next->size == graph->size + graph->parents->size - 1) {
5703 size_t i = graph->pos + graph->parents->size - 1;
5705 graph->commit->graph_size = i * 2;
5706 while (i < graph->next->size - 1) {
5707 append_to_rev_graph(graph, ' ');
5708 append_to_rev_graph(graph, '\\');
5713 clear_rev_graph(graph);
5717 push_rev_graph(struct rev_graph *graph, const char *parent)
5721 /* "Collapse" duplicate parents lines.
5723 * FIXME: This needs to also update update the drawn graph but
5724 * for now it just serves as a method for pruning graph lines. */
5725 for (i = 0; i < graph->size; i++)
5726 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5729 if (graph->size < SIZEOF_REVITEMS) {
5730 string_copy_rev(graph->rev[graph->size++], parent);
5735 get_rev_graph_symbol(struct rev_graph *graph)
5739 if (graph->boundary)
5740 symbol = REVGRAPH_BOUND;
5741 else if (graph->parents->size == 0)
5742 symbol = REVGRAPH_INIT;
5743 else if (graph_parent_is_merge(graph))
5744 symbol = REVGRAPH_MERGE;
5745 else if (graph->pos >= graph->size)
5746 symbol = REVGRAPH_BRANCH;
5748 symbol = REVGRAPH_COMMIT;
5754 draw_rev_graph(struct rev_graph *graph)
5757 chtype separator, line;
5759 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5760 static struct rev_filler fillers[] = {
5766 chtype symbol = get_rev_graph_symbol(graph);
5767 struct rev_filler *filler;
5770 if (opt_line_graphics)
5771 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5773 filler = &fillers[DEFAULT];
5775 for (i = 0; i < graph->pos; i++) {
5776 append_to_rev_graph(graph, filler->line);
5777 if (graph_parent_is_merge(graph->prev) &&
5778 graph->prev->pos == i)
5779 filler = &fillers[RSHARP];
5781 append_to_rev_graph(graph, filler->separator);
5784 /* Place the symbol for this revision. */
5785 append_to_rev_graph(graph, symbol);
5787 if (graph->prev->size > graph->size)
5788 filler = &fillers[RDIAG];
5790 filler = &fillers[DEFAULT];
5794 for (; i < graph->size; i++) {
5795 append_to_rev_graph(graph, filler->separator);
5796 append_to_rev_graph(graph, filler->line);
5797 if (graph_parent_is_merge(graph->prev) &&
5798 i < graph->prev->pos + graph->parents->size)
5799 filler = &fillers[RSHARP];
5800 if (graph->prev->size > graph->size)
5801 filler = &fillers[LDIAG];
5804 if (graph->prev->size > graph->size) {
5805 append_to_rev_graph(graph, filler->separator);
5806 if (filler->line != ' ')
5807 append_to_rev_graph(graph, filler->line);
5811 /* Prepare the next rev graph */
5813 prepare_rev_graph(struct rev_graph *graph)
5817 /* First, traverse all lines of revisions up to the active one. */
5818 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5819 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5822 push_rev_graph(graph->next, graph->rev[graph->pos]);
5825 /* Interleave the new revision parent(s). */
5826 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5827 push_rev_graph(graph->next, graph->parents->rev[i]);
5829 /* Lastly, put any remaining revisions. */
5830 for (i = graph->pos + 1; i < graph->size; i++)
5831 push_rev_graph(graph->next, graph->rev[i]);
5835 update_rev_graph(struct view *view, struct rev_graph *graph)
5837 /* If this is the finalizing update ... */
5839 prepare_rev_graph(graph);
5841 /* Graph visualization needs a one rev look-ahead,
5842 * so the first update doesn't visualize anything. */
5843 if (!graph->prev->commit)
5846 if (view->lines > 2)
5847 view->line[view->lines - 3].dirty = 1;
5848 if (view->lines > 1)
5849 view->line[view->lines - 2].dirty = 1;
5850 draw_rev_graph(graph->prev);
5851 done_rev_graph(graph->prev->prev);
5859 static const char *main_argv[SIZEOF_ARG] = {
5860 "git", "log", "--no-color", "--pretty=raw", "--parents",
5861 "--topo-order", "%(head)", NULL
5865 main_draw(struct view *view, struct line *line, unsigned int lineno)
5867 struct commit *commit = line->data;
5869 if (!*commit->author)
5872 if (opt_date && draw_date(view, &commit->time))
5875 if (opt_author && draw_author(view, commit->author))
5878 if (opt_rev_graph && commit->graph_size &&
5879 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5882 if (opt_show_refs && commit->refs) {
5886 enum line_type type;
5888 if (commit->refs[i]->head)
5889 type = LINE_MAIN_HEAD;
5890 else if (commit->refs[i]->ltag)
5891 type = LINE_MAIN_LOCAL_TAG;
5892 else if (commit->refs[i]->tag)
5893 type = LINE_MAIN_TAG;
5894 else if (commit->refs[i]->tracked)
5895 type = LINE_MAIN_TRACKED;
5896 else if (commit->refs[i]->remote)
5897 type = LINE_MAIN_REMOTE;
5899 type = LINE_MAIN_REF;
5901 if (draw_text(view, type, "[", TRUE) ||
5902 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5903 draw_text(view, type, "]", TRUE))
5906 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5908 } while (commit->refs[i++]->next);
5911 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5915 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5917 main_read(struct view *view, char *line)
5919 static struct rev_graph *graph = graph_stacks;
5920 enum line_type type;
5921 struct commit *commit;
5926 if (!view->lines && !view->parent)
5927 die("No revisions match the given arguments.");
5928 if (view->lines > 0) {
5929 commit = view->line[view->lines - 1].data;
5930 view->line[view->lines - 1].dirty = 1;
5931 if (!*commit->author) {
5934 graph->commit = NULL;
5937 update_rev_graph(view, graph);
5939 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5940 clear_rev_graph(&graph_stacks[i]);
5944 type = get_line_type(line);
5945 if (type == LINE_COMMIT) {
5946 commit = calloc(1, sizeof(struct commit));
5950 line += STRING_SIZE("commit ");
5952 graph->boundary = 1;
5956 string_copy_rev(commit->id, line);
5957 commit->refs = get_refs(commit->id);
5958 graph->commit = commit;
5959 add_line_data(view, commit, LINE_MAIN_COMMIT);
5961 while ((line = strchr(line, ' '))) {
5963 push_rev_graph(graph->parents, line);
5964 commit->has_parents = TRUE;
5971 commit = view->line[view->lines - 1].data;
5975 if (commit->has_parents)
5977 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5981 parse_author_line(line + STRING_SIZE("author "),
5982 commit->author, sizeof(commit->author),
5984 update_rev_graph(view, graph);
5985 graph = graph->next;
5989 /* Fill in the commit title if it has not already been set. */
5990 if (commit->title[0])
5993 /* Require titles to start with a non-space character at the
5994 * offset used by git log. */
5995 if (strncmp(line, " ", 4))
5998 /* Well, if the title starts with a whitespace character,
5999 * try to be forgiving. Otherwise we end up with no title. */
6000 while (isspace(*line))
6004 /* FIXME: More graceful handling of titles; append "..." to
6005 * shortened titles, etc. */
6007 string_expand(commit->title, sizeof(commit->title), line, 1);
6008 view->line[view->lines - 1].dirty = 1;
6015 main_request(struct view *view, enum request request, struct line *line)
6017 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
6021 open_view(view, REQ_VIEW_DIFF, flags);
6025 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
6035 grep_refs(struct ref **refs, regex_t *regex)
6043 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
6045 } while (refs[i++]->next);
6051 main_grep(struct view *view, struct line *line)
6053 struct commit *commit = line->data;
6054 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
6055 char buf[DATE_COLS + 1];
6058 for (state = S_TITLE; state < S_END; state++) {
6062 case S_TITLE: text = commit->title; break;
6066 text = commit->author;
6071 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
6078 if (grep_refs(commit->refs, view->regex) == TRUE)
6085 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
6093 main_select(struct view *view, struct line *line)
6095 struct commit *commit = line->data;
6097 string_copy_rev(view->ref, commit->id);
6098 string_copy_rev(ref_commit, view->ref);
6101 static struct view_ops main_ops = {
6114 * Unicode / UTF-8 handling
6116 * NOTE: Much of the following code for dealing with Unicode is derived from
6117 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
6118 * src/intl/charset.c from the UTF-8 branch commit elinks-0.11.0-g31f2c28.
6122 unicode_width(unsigned long c)
6125 (c <= 0x115f /* Hangul Jamo */
6128 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
6130 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
6131 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
6132 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
6133 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
6134 || (c >= 0xffe0 && c <= 0xffe6)
6135 || (c >= 0x20000 && c <= 0x2fffd)
6136 || (c >= 0x30000 && c <= 0x3fffd)))
6140 return opt_tab_size;
6145 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
6146 * Illegal bytes are set one. */
6147 static const unsigned char utf8_bytes[256] = {
6148 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,
6149 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,
6150 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,
6151 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,
6152 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,
6153 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,
6154 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,
6155 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,
6158 /* Decode UTF-8 multi-byte representation into a Unicode character. */
6159 static inline unsigned long
6160 utf8_to_unicode(const char *string, size_t length)
6162 unsigned long unicode;
6166 unicode = string[0];
6169 unicode = (string[0] & 0x1f) << 6;
6170 unicode += (string[1] & 0x3f);
6173 unicode = (string[0] & 0x0f) << 12;
6174 unicode += ((string[1] & 0x3f) << 6);
6175 unicode += (string[2] & 0x3f);
6178 unicode = (string[0] & 0x0f) << 18;
6179 unicode += ((string[1] & 0x3f) << 12);
6180 unicode += ((string[2] & 0x3f) << 6);
6181 unicode += (string[3] & 0x3f);
6184 unicode = (string[0] & 0x0f) << 24;
6185 unicode += ((string[1] & 0x3f) << 18);
6186 unicode += ((string[2] & 0x3f) << 12);
6187 unicode += ((string[3] & 0x3f) << 6);
6188 unicode += (string[4] & 0x3f);
6191 unicode = (string[0] & 0x01) << 30;
6192 unicode += ((string[1] & 0x3f) << 24);
6193 unicode += ((string[2] & 0x3f) << 18);
6194 unicode += ((string[3] & 0x3f) << 12);
6195 unicode += ((string[4] & 0x3f) << 6);
6196 unicode += (string[5] & 0x3f);
6199 die("Invalid Unicode length");
6202 /* Invalid characters could return the special 0xfffd value but NUL
6203 * should be just as good. */
6204 return unicode > 0xffff ? 0 : unicode;
6207 /* Calculates how much of string can be shown within the given maximum width
6208 * and sets trimmed parameter to non-zero value if all of string could not be
6209 * shown. If the reserve flag is TRUE, it will reserve at least one
6210 * trailing character, which can be useful when drawing a delimiter.
6212 * Returns the number of bytes to output from string to satisfy max_width. */
6214 utf8_length(const char **start, size_t skip, int *width, size_t max_width, int *trimmed, bool reserve)
6216 const char *string = *start;
6217 const char *end = strchr(string, '\0');
6218 unsigned char last_bytes = 0;
6219 size_t last_ucwidth = 0;
6224 while (string < end) {
6225 int c = *(unsigned char *) string;
6226 unsigned char bytes = utf8_bytes[c];
6228 unsigned long unicode;
6230 if (string + bytes > end)
6233 /* Change representation to figure out whether
6234 * it is a single- or double-width character. */
6236 unicode = utf8_to_unicode(string, bytes);
6237 /* FIXME: Graceful handling of invalid Unicode character. */
6241 ucwidth = unicode_width(unicode);
6243 skip -= ucwidth <= skip ? ucwidth : skip;
6247 if (*width > max_width) {
6250 if (reserve && *width == max_width) {
6251 string -= last_bytes;
6252 *width -= last_ucwidth;
6258 last_bytes = ucwidth ? bytes : 0;
6259 last_ucwidth = ucwidth;
6262 return string - *start;
6270 /* Whether or not the curses interface has been initialized. */
6271 static bool cursed = FALSE;
6273 /* Terminal hacks and workarounds. */
6274 static bool use_scroll_redrawwin;
6275 static bool use_scroll_status_wclear;
6277 /* The status window is used for polling keystrokes. */
6278 static WINDOW *status_win;
6280 /* Reading from the prompt? */
6281 static bool input_mode = FALSE;
6283 static bool status_empty = FALSE;
6285 /* Update status and title window. */
6287 report(const char *msg, ...)
6289 struct view *view = display[current_view];
6295 char buf[SIZEOF_STR];
6298 va_start(args, msg);
6299 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6300 buf[sizeof(buf) - 1] = 0;
6301 buf[sizeof(buf) - 2] = '.';
6302 buf[sizeof(buf) - 3] = '.';
6303 buf[sizeof(buf) - 4] = '.';
6309 if (!status_empty || *msg) {
6312 va_start(args, msg);
6314 wmove(status_win, 0, 0);
6315 if (view->has_scrolled && use_scroll_status_wclear)
6318 vwprintw(status_win, msg, args);
6319 status_empty = FALSE;
6321 status_empty = TRUE;
6323 wclrtoeol(status_win);
6324 wnoutrefresh(status_win);
6329 update_view_title(view);
6332 /* Controls when nodelay should be in effect when polling user input. */
6334 set_nonblocking_input(bool loading)
6336 static unsigned int loading_views;
6338 if ((loading == FALSE && loading_views-- == 1) ||
6339 (loading == TRUE && loading_views++ == 0))
6340 nodelay(status_win, loading);
6349 /* Initialize the curses library */
6350 if (isatty(STDIN_FILENO)) {
6351 cursed = !!initscr();
6354 /* Leave stdin and stdout alone when acting as a pager. */
6355 opt_tty = fopen("/dev/tty", "r+");
6357 die("Failed to open /dev/tty");
6358 cursed = !!newterm(NULL, opt_tty, opt_tty);
6362 die("Failed to initialize curses");
6364 nonl(); /* Disable conversion and detect newlines from input. */
6365 cbreak(); /* Take input chars one at a time, no wait for \n */
6366 noecho(); /* Don't echo input */
6367 leaveok(stdscr, FALSE);
6372 getmaxyx(stdscr, y, x);
6373 status_win = newwin(1, 0, y - 1, 0);
6375 die("Failed to create status window");
6377 /* Enable keyboard mapping */
6378 keypad(status_win, TRUE);
6379 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6381 TABSIZE = opt_tab_size;
6382 if (opt_line_graphics) {
6383 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6386 term = getenv("XTERM_VERSION") ? NULL : getenv("COLORTERM");
6387 if (term && !strcmp(term, "gnome-terminal")) {
6388 /* In the gnome-terminal-emulator, the message from
6389 * scrolling up one line when impossible followed by
6390 * scrolling down one line causes corruption of the
6391 * status line. This is fixed by calling wclear. */
6392 use_scroll_status_wclear = TRUE;
6393 use_scroll_redrawwin = FALSE;
6395 } else if (term && !strcmp(term, "xrvt-xpm")) {
6396 /* No problems with full optimizations in xrvt-(unicode)
6398 use_scroll_status_wclear = use_scroll_redrawwin = FALSE;
6401 /* When scrolling in (u)xterm the last line in the
6402 * scrolling direction will update slowly. */
6403 use_scroll_redrawwin = TRUE;
6404 use_scroll_status_wclear = FALSE;
6409 get_input(int prompt_position)
6412 int i, key, cursor_y, cursor_x;
6414 if (prompt_position)
6418 foreach_view (view, i) {
6420 if (view_is_displayed(view) && view->has_scrolled &&
6421 use_scroll_redrawwin)
6422 redrawwin(view->win);
6423 view->has_scrolled = FALSE;
6426 /* Update the cursor position. */
6427 if (prompt_position) {
6428 getbegyx(status_win, cursor_y, cursor_x);
6429 cursor_x = prompt_position;
6431 view = display[current_view];
6432 getbegyx(view->win, cursor_y, cursor_x);
6433 cursor_x = view->width - 1;
6434 cursor_y += view->lineno - view->offset;
6436 setsyx(cursor_y, cursor_x);
6438 /* Refresh, accept single keystroke of input */
6440 key = wgetch(status_win);
6442 /* wgetch() with nodelay() enabled returns ERR when
6443 * there's no input. */
6446 } else if (key == KEY_RESIZE) {
6449 getmaxyx(stdscr, height, width);
6451 wresize(status_win, 1, width);
6452 mvwin(status_win, height - 1, 0);
6453 wnoutrefresh(status_win);
6455 redraw_display(TRUE);
6465 prompt_input(const char *prompt, input_handler handler, void *data)
6467 enum input_status status = INPUT_OK;
6468 static char buf[SIZEOF_STR];
6473 while (status == INPUT_OK || status == INPUT_SKIP) {
6476 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6477 wclrtoeol(status_win);
6479 key = get_input(pos + 1);
6484 status = pos ? INPUT_STOP : INPUT_CANCEL;
6491 status = INPUT_CANCEL;
6495 status = INPUT_CANCEL;
6499 if (pos >= sizeof(buf)) {
6500 report("Input string too long");
6504 status = handler(data, buf, key);
6505 if (status == INPUT_OK)
6506 buf[pos++] = (char) key;
6510 /* Clear the status window */
6511 status_empty = FALSE;
6514 if (status == INPUT_CANCEL)
6522 static enum input_status
6523 prompt_yesno_handler(void *data, char *buf, int c)
6525 if (c == 'y' || c == 'Y')
6527 if (c == 'n' || c == 'N')
6528 return INPUT_CANCEL;
6533 prompt_yesno(const char *prompt)
6535 char prompt2[SIZEOF_STR];
6537 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6540 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6543 static enum input_status
6544 read_prompt_handler(void *data, char *buf, int c)
6546 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6550 read_prompt(const char *prompt)
6552 return prompt_input(prompt, read_prompt_handler, NULL);
6556 * Repository properties
6559 static struct ref *refs = NULL;
6560 static size_t refs_alloc = 0;
6561 static size_t refs_size = 0;
6563 /* Id <-> ref store */
6564 static struct ref ***id_refs = NULL;
6565 static size_t id_refs_alloc = 0;
6566 static size_t id_refs_size = 0;
6569 compare_refs(const void *ref1_, const void *ref2_)
6571 const struct ref *ref1 = *(const struct ref **)ref1_;
6572 const struct ref *ref2 = *(const struct ref **)ref2_;
6574 if (ref1->tag != ref2->tag)
6575 return ref2->tag - ref1->tag;
6576 if (ref1->ltag != ref2->ltag)
6577 return ref2->ltag - ref2->ltag;
6578 if (ref1->head != ref2->head)
6579 return ref2->head - ref1->head;
6580 if (ref1->tracked != ref2->tracked)
6581 return ref2->tracked - ref1->tracked;
6582 if (ref1->remote != ref2->remote)
6583 return ref2->remote - ref1->remote;
6584 return strcmp(ref1->name, ref2->name);
6587 static struct ref **
6588 get_refs(const char *id)
6590 struct ref ***tmp_id_refs;
6591 struct ref **ref_list = NULL;
6592 size_t ref_list_alloc = 0;
6593 size_t ref_list_size = 0;
6596 for (i = 0; i < id_refs_size; i++)
6597 if (!strcmp(id, id_refs[i][0]->id))
6600 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6605 id_refs = tmp_id_refs;
6607 for (i = 0; i < refs_size; i++) {
6610 if (strcmp(id, refs[i].id))
6613 tmp = realloc_items(ref_list, &ref_list_alloc,
6614 ref_list_size + 1, sizeof(*ref_list));
6622 ref_list[ref_list_size] = &refs[i];
6623 /* XXX: The properties of the commit chains ensures that we can
6624 * safely modify the shared ref. The repo references will
6625 * always be similar for the same id. */
6626 ref_list[ref_list_size]->next = 1;
6632 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6633 ref_list[ref_list_size - 1]->next = 0;
6634 id_refs[id_refs_size++] = ref_list;
6641 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6646 bool remote = FALSE;
6647 bool tracked = FALSE;
6648 bool check_replace = FALSE;
6651 if (!prefixcmp(name, "refs/tags/")) {
6652 if (!suffixcmp(name, namelen, "^{}")) {
6655 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6656 check_replace = TRUE;
6662 namelen -= STRING_SIZE("refs/tags/");
6663 name += STRING_SIZE("refs/tags/");
6665 } else if (!prefixcmp(name, "refs/remotes/")) {
6667 namelen -= STRING_SIZE("refs/remotes/");
6668 name += STRING_SIZE("refs/remotes/");
6669 tracked = !strcmp(opt_remote, name);
6671 } else if (!prefixcmp(name, "refs/heads/")) {
6672 namelen -= STRING_SIZE("refs/heads/");
6673 name += STRING_SIZE("refs/heads/");
6674 head = !strncmp(opt_head, name, namelen);
6676 } else if (!strcmp(name, "HEAD")) {
6677 string_ncopy(opt_head_rev, id, idlen);
6681 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6682 /* it's an annotated tag, replace the previous SHA1 with the
6683 * resolved commit id; relies on the fact git-ls-remote lists
6684 * the commit id of an annotated tag right before the commit id
6686 refs[refs_size - 1].ltag = ltag;
6687 string_copy_rev(refs[refs_size - 1].id, id);
6691 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6695 ref = &refs[refs_size++];
6696 ref->name = malloc(namelen + 1);
6700 strncpy(ref->name, name, namelen);
6701 ref->name[namelen] = 0;
6705 ref->remote = remote;
6706 ref->tracked = tracked;
6707 string_copy_rev(ref->id, id);
6715 static const char *ls_remote_argv[SIZEOF_ARG] = {
6716 "git", "ls-remote", opt_git_dir, NULL
6718 static bool init = FALSE;
6721 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6728 while (refs_size > 0)
6729 free(refs[--refs_size].name);
6730 while (id_refs_size > 0)
6731 free(id_refs[--id_refs_size]);
6733 return run_io_load(ls_remote_argv, "\t", read_ref);
6737 set_remote_branch(const char *name, const char *value, size_t valuelen)
6739 if (!strcmp(name, ".remote")) {
6740 string_ncopy(opt_remote, value, valuelen);
6742 } else if (*opt_remote && !strcmp(name, ".merge")) {
6743 size_t from = strlen(opt_remote);
6745 if (!prefixcmp(value, "refs/heads/"))
6746 value += STRING_SIZE("refs/heads/");
6748 if (!string_format_from(opt_remote, &from, "/%s", value))
6754 set_repo_config_option(char *name, char *value, int (*cmd)(int, const char **))
6756 const char *argv[SIZEOF_ARG] = { name, "=" };
6757 int argc = 1 + (cmd == option_set_command);
6760 if (!argv_from_string(argv, &argc, value))
6761 config_msg = "Too many option arguments";
6763 error = cmd(argc, argv);
6766 warn("Option 'tig.%s': %s", name, config_msg);
6770 set_environment_variable(const char *name, const char *value)
6772 size_t len = strlen(name) + 1 + strlen(value) + 1;
6773 char *env = malloc(len);
6776 string_nformat(env, len, NULL, "%s=%s", name, value) &&
6784 set_work_tree(const char *value)
6786 char cwd[SIZEOF_STR];
6788 if (!getcwd(cwd, sizeof(cwd)))
6789 die("Failed to get cwd path: %s", strerror(errno));
6790 if (chdir(opt_git_dir) < 0)
6791 die("Failed to chdir(%s): %s", strerror(errno));
6792 if (!getcwd(opt_git_dir, sizeof(opt_git_dir)))
6793 die("Failed to get git path: %s", strerror(errno));
6795 die("Failed to chdir(%s): %s", cwd, strerror(errno));
6796 if (chdir(value) < 0)
6797 die("Failed to chdir(%s): %s", value, strerror(errno));
6798 if (!getcwd(cwd, sizeof(cwd)))
6799 die("Failed to get cwd path: %s", strerror(errno));
6800 if (!set_environment_variable("GIT_WORK_TREE", cwd))
6801 die("Failed to set GIT_WORK_TREE to '%s'", cwd);
6802 if (!set_environment_variable("GIT_DIR", opt_git_dir))
6803 die("Failed to set GIT_DIR to '%s'", opt_git_dir);
6804 opt_is_inside_work_tree = TRUE;
6808 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6810 if (!strcmp(name, "i18n.commitencoding"))
6811 string_ncopy(opt_encoding, value, valuelen);
6813 else if (!strcmp(name, "core.editor"))
6814 string_ncopy(opt_editor, value, valuelen);
6816 else if (!strcmp(name, "core.worktree"))
6817 set_work_tree(value);
6819 else if (!prefixcmp(name, "tig.color."))
6820 set_repo_config_option(name + 10, value, option_color_command);
6822 else if (!prefixcmp(name, "tig.bind."))
6823 set_repo_config_option(name + 9, value, option_bind_command);
6825 else if (!prefixcmp(name, "tig."))
6826 set_repo_config_option(name + 4, value, option_set_command);
6828 else if (*opt_head && !prefixcmp(name, "branch.") &&
6829 !strncmp(name + 7, opt_head, strlen(opt_head)))
6830 set_remote_branch(name + 7 + strlen(opt_head), value, valuelen);
6836 load_git_config(void)
6838 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6840 return run_io_load(config_list_argv, "=", read_repo_config_option);
6844 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6846 if (!opt_git_dir[0]) {
6847 string_ncopy(opt_git_dir, name, namelen);
6849 } else if (opt_is_inside_work_tree == -1) {
6850 /* This can be 3 different values depending on the
6851 * version of git being used. If git-rev-parse does not
6852 * understand --is-inside-work-tree it will simply echo
6853 * the option else either "true" or "false" is printed.
6854 * Default to true for the unknown case. */
6855 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6857 } else if (*name == '.') {
6858 string_ncopy(opt_cdup, name, namelen);
6861 string_ncopy(opt_prefix, name, namelen);
6868 load_repo_info(void)
6870 const char *head_argv[] = {
6871 "git", "symbolic-ref", "HEAD", NULL
6873 const char *rev_parse_argv[] = {
6874 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6875 "--show-cdup", "--show-prefix", NULL
6878 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6879 chomp_string(opt_head);
6880 if (!prefixcmp(opt_head, "refs/heads/")) {
6881 char *offset = opt_head + STRING_SIZE("refs/heads/");
6883 memmove(opt_head, offset, strlen(offset) + 1);
6887 return run_io_load(rev_parse_argv, "=", read_repo_info);
6895 static const char usage[] =
6896 "tig " TIG_VERSION " (" __DATE__ ")\n"
6898 "Usage: tig [options] [revs] [--] [paths]\n"
6899 " or: tig show [options] [revs] [--] [paths]\n"
6900 " or: tig blame [rev] path\n"
6902 " or: tig < [git command output]\n"
6905 " -v, --version Show version and exit\n"
6906 " -h, --help Show help message and exit";
6908 static void __NORETURN
6911 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6917 static void __NORETURN
6918 die(const char *err, ...)
6924 va_start(args, err);
6925 fputs("tig: ", stderr);
6926 vfprintf(stderr, err, args);
6927 fputs("\n", stderr);
6934 warn(const char *msg, ...)
6938 va_start(args, msg);
6939 fputs("tig warning: ", stderr);
6940 vfprintf(stderr, msg, args);
6941 fputs("\n", stderr);
6946 parse_options(int argc, const char *argv[])
6948 enum request request = REQ_VIEW_MAIN;
6949 const char *subcommand;
6950 bool seen_dashdash = FALSE;
6951 /* XXX: This is vulnerable to the user overriding options
6952 * required for the main view parser. */
6953 const char *custom_argv[SIZEOF_ARG] = {
6954 "git", "log", "--no-color", "--pretty=raw", "--parents",
6955 "--topo-order", NULL
6959 if (!isatty(STDIN_FILENO)) {
6960 io_open(&VIEW(REQ_VIEW_PAGER)->io, "");
6961 return REQ_VIEW_PAGER;
6967 subcommand = argv[1];
6968 if (!strcmp(subcommand, "status")) {
6970 warn("ignoring arguments after `%s'", subcommand);
6971 return REQ_VIEW_STATUS;
6973 } else if (!strcmp(subcommand, "blame")) {
6974 if (argc <= 2 || argc > 4)
6975 die("invalid number of options to blame\n\n%s", usage);
6979 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
6983 string_ncopy(opt_file, argv[i], strlen(argv[i]));
6984 return REQ_VIEW_BLAME;
6986 } else if (!strcmp(subcommand, "show")) {
6987 request = REQ_VIEW_DIFF;
6994 custom_argv[1] = subcommand;
6998 for (i = 1 + !!subcommand; i < argc; i++) {
6999 const char *opt = argv[i];
7001 if (seen_dashdash || !strcmp(opt, "--")) {
7002 seen_dashdash = TRUE;
7004 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
7005 printf("tig version %s\n", TIG_VERSION);
7008 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
7009 printf("%s\n", usage);
7013 custom_argv[j++] = opt;
7014 if (j >= ARRAY_SIZE(custom_argv))
7015 die("command too long");
7018 if (!prepare_update(VIEW(request), custom_argv, NULL, FORMAT_NONE))
7019 die("Failed to format arguments");
7025 main(int argc, const char *argv[])
7027 enum request request = parse_options(argc, argv);
7031 signal(SIGINT, quit);
7032 signal(SIGPIPE, SIG_IGN);
7034 if (setlocale(LC_ALL, "")) {
7035 char *codeset = nl_langinfo(CODESET);
7037 string_ncopy(opt_codeset, codeset, strlen(codeset));
7040 if (load_repo_info() == ERR)
7041 die("Failed to load repo info.");
7043 if (load_options() == ERR)
7044 die("Failed to load user config.");
7046 if (load_git_config() == ERR)
7047 die("Failed to load repo config.");
7049 /* Require a git repository unless when running in pager mode. */
7050 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
7051 die("Not a git repository");
7053 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
7056 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
7057 opt_iconv = iconv_open(opt_codeset, opt_encoding);
7058 if (opt_iconv == ICONV_NONE)
7059 die("Failed to initialize character set conversion");
7062 if (load_refs() == ERR)
7063 die("Failed to load refs.");
7065 foreach_view (view, i)
7066 argv_from_env(view->ops->argv, view->cmd_env);
7070 if (request != REQ_NONE)
7071 open_view(NULL, request, OPEN_PREPARED);
7072 request = request == REQ_NONE ? REQ_VIEW_MAIN : REQ_NONE;
7074 while (view_driver(display[current_view], request)) {
7075 int key = get_input(0);
7077 view = display[current_view];
7078 request = get_keybinding(view->keymap, key);
7080 /* Some low-level request handling. This keeps access to
7081 * status_win restricted. */
7085 char *cmd = read_prompt(":");
7087 if (cmd && isdigit(*cmd)) {
7088 int lineno = view->lineno + 1;
7090 if (parse_int(&lineno, cmd, 1, view->lines + 1) == OK) {
7091 select_view_line(view, lineno - 1);
7094 report("Unable to parse '%s' as a line number", cmd);
7098 struct view *next = VIEW(REQ_VIEW_PAGER);
7099 const char *argv[SIZEOF_ARG] = { "git" };
7102 /* When running random commands, initially show the
7103 * command in the title. However, it maybe later be
7104 * overwritten if a commit line is selected. */
7105 string_ncopy(next->ref, cmd, strlen(cmd));
7107 if (!argv_from_string(argv, &argc, cmd)) {
7108 report("Too many arguments");
7109 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
7110 report("Failed to format command");
7112 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
7120 case REQ_SEARCH_BACK:
7122 const char *prompt = request == REQ_SEARCH ? "/" : "?";
7123 char *search = read_prompt(prompt);
7126 string_ncopy(opt_search, search, strlen(search));
7127 else if (*opt_search)
7128 request = request == REQ_SEARCH ?