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
112 #define SCROLL_INTERVAL 1
116 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
118 #define NULL_ID "0000000000000000000000000000000000000000"
121 #define GIT_CONFIG "config"
124 /* Some ASCII-shorthands fitted into the ncurses namespace. */
126 #define KEY_RETURN '\r'
131 char *name; /* Ref name; tag or head names are shortened. */
132 char id[SIZEOF_REV]; /* Commit SHA1 ID */
133 unsigned int head:1; /* Is it the current HEAD? */
134 unsigned int tag:1; /* Is it a tag? */
135 unsigned int ltag:1; /* If so, is the tag local? */
136 unsigned int remote:1; /* Is it a remote ref? */
137 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
138 unsigned int next:1; /* For ref lists: are there more refs? */
141 static struct ref **get_refs(const char *id);
144 FORMAT_ALL, /* Perform replacement in all arguments. */
145 FORMAT_DASH, /* Perform replacement up until "--". */
146 FORMAT_NONE /* No replacement should be performed. */
149 static bool format_argv(const char *dst[], const char *src[], enum format_flags flags);
158 typedef enum input_status (*input_handler)(void *data, char *buf, int c);
160 static char *prompt_input(const char *prompt, input_handler handler, void *data);
161 static bool prompt_yesno(const char *prompt);
168 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
170 if (srclen > dstlen - 1)
173 strncpy(dst, src, srclen);
177 /* Shorthands for safely copying into a fixed buffer. */
179 #define string_copy(dst, src) \
180 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
182 #define string_ncopy(dst, src, srclen) \
183 string_ncopy_do(dst, sizeof(dst), src, srclen)
185 #define string_copy_rev(dst, src) \
186 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
188 #define string_add(dst, from, src) \
189 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
192 string_expand_length(const char *line, int tabsize)
196 for (pos = 0; line[pos]; pos++) {
197 if (line[pos] == '\t' && tabsize > 0)
198 size += tabsize - (size % tabsize);
206 string_expand(char *dst, size_t dstlen, const char *src, int tabsize)
210 for (size = pos = 0; size < dstlen - 1 && src[pos]; pos++) {
211 if (src[pos] == '\t') {
212 size_t expanded = tabsize - (size % tabsize);
214 if (expanded + size >= dstlen - 1)
215 expanded = dstlen - size - 1;
216 memcpy(dst + size, " ", expanded);
219 dst[size++] = src[pos];
227 chomp_string(char *name)
231 while (isspace(*name))
234 namelen = strlen(name) - 1;
235 while (namelen > 0 && isspace(name[namelen]))
242 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
245 size_t pos = bufpos ? *bufpos : 0;
248 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
254 return pos >= bufsize ? FALSE : TRUE;
257 #define string_format(buf, fmt, args...) \
258 string_nformat(buf, sizeof(buf), NULL, fmt, args)
260 #define string_format_from(buf, from, fmt, args...) \
261 string_nformat(buf, sizeof(buf), from, fmt, args)
264 string_enum_compare(const char *str1, const char *str2, int len)
268 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
270 /* Diff-Header == DIFF_HEADER */
271 for (i = 0; i < len; i++) {
272 if (toupper(str1[i]) == toupper(str2[i]))
275 if (string_enum_sep(str1[i]) &&
276 string_enum_sep(str2[i]))
279 return str1[i] - str2[i];
291 #define ENUM_MAP(name, value) { name, STRING_SIZE(name), value }
294 map_enum_do(struct enum_map *map, size_t map_size, int *value, const char *name)
296 size_t namelen = strlen(name);
299 for (i = 0; i < map_size; i++)
300 if (namelen == map[i].namelen &&
301 !string_enum_compare(name, map[i].name, namelen)) {
302 *value = map[i].value;
309 #define map_enum(attr, map, name) \
310 map_enum_do(map, ARRAY_SIZE(map), attr, name)
312 #define prefixcmp(str1, str2) \
313 strncmp(str1, str2, STRING_SIZE(str2))
316 suffixcmp(const char *str, int slen, const char *suffix)
318 size_t len = slen >= 0 ? slen : strlen(str);
319 size_t suffixlen = strlen(suffix);
321 return suffixlen < len ? strcmp(str + len - suffixlen, suffix) : -1;
326 argv_from_string(const char *argv[SIZEOF_ARG], int *argc, char *cmd)
330 while (*cmd && *argc < SIZEOF_ARG && (valuelen = strcspn(cmd, " \t"))) {
331 bool advance = cmd[valuelen] != 0;
334 argv[(*argc)++] = chomp_string(cmd);
335 cmd = chomp_string(cmd + valuelen + advance);
338 if (*argc < SIZEOF_ARG)
340 return *argc < SIZEOF_ARG;
344 argv_from_env(const char **argv, const char *name)
346 char *env = argv ? getenv(name) : NULL;
351 if (env && !argv_from_string(argv, &argc, env))
352 die("Too many arguments in the `%s` environment variable", name);
357 * Executing external commands.
361 IO_FD, /* File descriptor based IO. */
362 IO_BG, /* Execute command in the background. */
363 IO_FG, /* Execute command with same std{in,out,err}. */
364 IO_RD, /* Read only fork+exec IO. */
365 IO_WR, /* Write only fork+exec IO. */
366 IO_AP, /* Append fork+exec output to file. */
370 enum io_type type; /* The requested type of pipe. */
371 const char *dir; /* Directory from which to execute. */
372 pid_t pid; /* Pipe for reading or writing. */
373 int pipe; /* Pipe end for reading or writing. */
374 int error; /* Error status. */
375 const char *argv[SIZEOF_ARG]; /* Shell command arguments. */
376 char *buf; /* Read buffer. */
377 size_t bufalloc; /* Allocated buffer size. */
378 size_t bufsize; /* Buffer content size. */
379 char *bufpos; /* Current buffer position. */
380 unsigned int eof:1; /* Has end of file been reached. */
384 reset_io(struct io *io)
388 io->buf = io->bufpos = NULL;
389 io->bufalloc = io->bufsize = 0;
395 init_io(struct io *io, const char *dir, enum io_type type)
403 init_io_rd(struct io *io, const char *argv[], const char *dir,
404 enum format_flags flags)
406 init_io(io, dir, IO_RD);
407 return format_argv(io->argv, argv, flags);
411 io_open(struct io *io, const char *name)
413 init_io(io, NULL, IO_FD);
414 io->pipe = *name ? open(name, O_RDONLY) : STDIN_FILENO;
415 return io->pipe != -1;
419 kill_io(struct io *io)
421 return io->pid == 0 || kill(io->pid, SIGKILL) != -1;
425 done_io(struct io *io)
436 pid_t waiting = waitpid(pid, &status, 0);
441 report("waitpid failed (%s)", strerror(errno));
445 return waiting == pid &&
446 !WIFSIGNALED(status) &&
448 !WEXITSTATUS(status);
455 start_io(struct io *io)
457 int pipefds[2] = { -1, -1 };
459 if (io->type == IO_FD)
462 if ((io->type == IO_RD || io->type == IO_WR) &&
465 else if (io->type == IO_AP)
466 pipefds[1] = io->pipe;
468 if ((io->pid = fork())) {
469 if (pipefds[!(io->type == IO_WR)] != -1)
470 close(pipefds[!(io->type == IO_WR)]);
472 io->pipe = pipefds[!!(io->type == IO_WR)];
477 if (io->type != IO_FG) {
478 int devnull = open("/dev/null", O_RDWR);
479 int readfd = io->type == IO_WR ? pipefds[0] : devnull;
480 int writefd = (io->type == IO_RD || io->type == IO_AP)
481 ? pipefds[1] : devnull;
483 dup2(readfd, STDIN_FILENO);
484 dup2(writefd, STDOUT_FILENO);
485 dup2(devnull, STDERR_FILENO);
488 if (pipefds[0] != -1)
490 if (pipefds[1] != -1)
494 if (io->dir && *io->dir && chdir(io->dir) == -1)
495 die("Failed to change directory: %s", strerror(errno));
497 execvp(io->argv[0], (char *const*) io->argv);
498 die("Failed to execute program: %s", strerror(errno));
501 if (pipefds[!!(io->type == IO_WR)] != -1)
502 close(pipefds[!!(io->type == IO_WR)]);
507 run_io(struct io *io, const char **argv, const char *dir, enum io_type type)
509 init_io(io, dir, type);
510 if (!format_argv(io->argv, argv, FORMAT_NONE))
516 run_io_do(struct io *io)
518 return start_io(io) && done_io(io);
522 run_io_bg(const char **argv)
526 init_io(&io, NULL, IO_BG);
527 if (!format_argv(io.argv, argv, FORMAT_NONE))
529 return run_io_do(&io);
533 run_io_fg(const char **argv, const char *dir)
537 init_io(&io, dir, IO_FG);
538 if (!format_argv(io.argv, argv, FORMAT_NONE))
540 return run_io_do(&io);
544 run_io_append(const char **argv, enum format_flags flags, int fd)
548 init_io(&io, NULL, IO_AP);
550 if (format_argv(io.argv, argv, flags))
551 return run_io_do(&io);
557 run_io_rd(struct io *io, const char **argv, enum format_flags flags)
559 return init_io_rd(io, argv, NULL, flags) && start_io(io);
563 io_eof(struct io *io)
569 io_error(struct io *io)
575 io_strerror(struct io *io)
577 return strerror(io->error);
581 io_can_read(struct io *io)
583 struct timeval tv = { 0, 500 };
587 FD_SET(io->pipe, &fds);
589 return select(io->pipe + 1, &fds, NULL, NULL, &tv) > 0;
593 io_read(struct io *io, void *buf, size_t bufsize)
596 ssize_t readsize = read(io->pipe, buf, bufsize);
598 if (readsize < 0 && (errno == EAGAIN || errno == EINTR))
600 else if (readsize == -1)
602 else if (readsize == 0)
609 io_get(struct io *io, int c, bool can_read)
615 io->buf = io->bufpos = malloc(BUFSIZ);
618 io->bufalloc = BUFSIZ;
623 if (io->bufsize > 0) {
624 eol = memchr(io->bufpos, c, io->bufsize);
626 char *line = io->bufpos;
629 io->bufpos = eol + 1;
630 io->bufsize -= io->bufpos - line;
637 io->bufpos[io->bufsize] = 0;
647 if (io->bufsize > 0 && io->bufpos > io->buf)
648 memmove(io->buf, io->bufpos, io->bufsize);
650 io->bufpos = io->buf;
651 readsize = io_read(io, io->buf + io->bufsize, io->bufalloc - io->bufsize);
654 io->bufsize += readsize;
659 io_write(struct io *io, const void *buf, size_t bufsize)
663 while (!io_error(io) && written < bufsize) {
666 size = write(io->pipe, buf + written, bufsize - written);
667 if (size < 0 && (errno == EAGAIN || errno == EINTR))
675 return written == bufsize;
679 run_io_buf(const char **argv, char buf[], size_t bufsize)
684 if (!run_io_rd(&io, argv, FORMAT_NONE))
687 io.buf = io.bufpos = buf;
688 io.bufalloc = bufsize;
689 error = !io_get(&io, '\n', TRUE) && io_error(&io);
692 return done_io(&io) || error;
696 io_load(struct io *io, const char *separators,
697 int (*read_property)(char *, size_t, char *, size_t))
705 while (state == OK && (name = io_get(io, '\n', TRUE))) {
710 name = chomp_string(name);
711 namelen = strcspn(name, separators);
715 value = chomp_string(name + namelen + 1);
716 valuelen = strlen(value);
723 state = read_property(name, namelen, value, valuelen);
726 if (state != ERR && io_error(io))
734 run_io_load(const char **argv, const char *separators,
735 int (*read_property)(char *, size_t, char *, size_t))
739 return init_io_rd(&io, argv, NULL, FORMAT_NONE)
740 ? io_load(&io, separators, read_property) : ERR;
749 /* XXX: Keep the view request first and in sync with views[]. */ \
750 REQ_GROUP("View switching") \
751 REQ_(VIEW_MAIN, "Show main view"), \
752 REQ_(VIEW_DIFF, "Show diff view"), \
753 REQ_(VIEW_LOG, "Show log view"), \
754 REQ_(VIEW_TREE, "Show tree view"), \
755 REQ_(VIEW_BLOB, "Show blob view"), \
756 REQ_(VIEW_BLAME, "Show blame view"), \
757 REQ_(VIEW_HELP, "Show help page"), \
758 REQ_(VIEW_PAGER, "Show pager view"), \
759 REQ_(VIEW_STATUS, "Show status view"), \
760 REQ_(VIEW_STAGE, "Show stage view"), \
762 REQ_GROUP("View manipulation") \
763 REQ_(ENTER, "Enter current line and scroll"), \
764 REQ_(NEXT, "Move to next"), \
765 REQ_(PREVIOUS, "Move to previous"), \
766 REQ_(PARENT, "Move to parent"), \
767 REQ_(VIEW_NEXT, "Move focus to next view"), \
768 REQ_(REFRESH, "Reload and refresh"), \
769 REQ_(MAXIMIZE, "Maximize the current view"), \
770 REQ_(VIEW_CLOSE, "Close the current view"), \
771 REQ_(QUIT, "Close all views and quit"), \
773 REQ_GROUP("View specific requests") \
774 REQ_(STATUS_UPDATE, "Update file status"), \
775 REQ_(STATUS_REVERT, "Revert file changes"), \
776 REQ_(STATUS_MERGE, "Merge file using external tool"), \
777 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
779 REQ_GROUP("Cursor navigation") \
780 REQ_(MOVE_UP, "Move cursor one line up"), \
781 REQ_(MOVE_DOWN, "Move cursor one line down"), \
782 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
783 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
784 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
785 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
787 REQ_GROUP("Scrolling") \
788 REQ_(SCROLL_LEFT, "Scroll two columns left"), \
789 REQ_(SCROLL_RIGHT, "Scroll two columns right"), \
790 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
791 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
792 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
793 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
795 REQ_GROUP("Searching") \
796 REQ_(SEARCH, "Search the view"), \
797 REQ_(SEARCH_BACK, "Search backwards in the view"), \
798 REQ_(FIND_NEXT, "Find next search match"), \
799 REQ_(FIND_PREV, "Find previous search match"), \
801 REQ_GROUP("Option manipulation") \
802 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
803 REQ_(TOGGLE_DATE, "Toggle date display"), \
804 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
805 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
806 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
809 REQ_(PROMPT, "Bring up the prompt"), \
810 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
811 REQ_(SHOW_VERSION, "Show version information"), \
812 REQ_(STOP_LOADING, "Stop all loading views"), \
813 REQ_(EDIT, "Open in editor"), \
814 REQ_(NONE, "Do nothing")
817 /* User action requests. */
819 #define REQ_GROUP(help)
820 #define REQ_(req, help) REQ_##req
822 /* Offset all requests to avoid conflicts with ncurses getch values. */
823 REQ_OFFSET = KEY_MAX + 1,
830 struct request_info {
831 enum request request;
837 static struct request_info req_info[] = {
838 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
839 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
846 get_request(const char *name)
848 int namelen = strlen(name);
851 for (i = 0; i < ARRAY_SIZE(req_info); i++)
852 if (req_info[i].namelen == namelen &&
853 !string_enum_compare(req_info[i].name, name, namelen))
854 return req_info[i].request;
864 /* Option and state variables. */
865 static bool opt_date = TRUE;
866 static bool opt_author = TRUE;
867 static bool opt_line_number = FALSE;
868 static bool opt_line_graphics = TRUE;
869 static bool opt_rev_graph = FALSE;
870 static bool opt_show_refs = TRUE;
871 static int opt_num_interval = NUMBER_INTERVAL;
872 static int opt_tab_size = TAB_SIZE;
873 static int opt_author_cols = AUTHOR_COLS-1;
874 static char opt_path[SIZEOF_STR] = "";
875 static char opt_file[SIZEOF_STR] = "";
876 static char opt_ref[SIZEOF_REF] = "";
877 static char opt_head[SIZEOF_REF] = "";
878 static char opt_head_rev[SIZEOF_REV] = "";
879 static char opt_remote[SIZEOF_REF] = "";
880 static char opt_encoding[20] = "UTF-8";
881 static bool opt_utf8 = TRUE;
882 static char opt_codeset[20] = "UTF-8";
883 static iconv_t opt_iconv = ICONV_NONE;
884 static char opt_search[SIZEOF_STR] = "";
885 static char opt_cdup[SIZEOF_STR] = "";
886 static char opt_prefix[SIZEOF_STR] = "";
887 static char opt_git_dir[SIZEOF_STR] = "";
888 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
889 static char opt_editor[SIZEOF_STR] = "";
890 static FILE *opt_tty = NULL;
892 #define is_initial_commit() (!*opt_head_rev)
893 #define is_head_commit(rev) (!strcmp((rev), "HEAD") || !strcmp(opt_head_rev, (rev)))
897 * Line-oriented content detection.
901 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
902 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
903 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
904 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
905 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
906 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
907 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
908 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
909 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
910 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
911 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
912 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
913 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
914 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
915 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
916 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
917 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
918 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
919 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
920 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
921 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
922 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
923 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
924 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
925 LINE(AUTHOR, "author ", COLOR_GREEN, COLOR_DEFAULT, 0), \
926 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
927 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
928 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
929 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
930 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
931 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
932 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
933 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
934 LINE(MODE, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
935 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
936 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
937 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
938 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
939 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
940 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
941 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
942 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
943 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
944 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
945 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
946 LINE(TREE_HEAD, "", COLOR_DEFAULT, COLOR_DEFAULT, A_BOLD), \
947 LINE(TREE_DIR, "", COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL), \
948 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
949 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
950 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
951 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
952 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
953 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
954 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
955 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
958 #define LINE(type, line, fg, bg, attr) \
966 const char *name; /* Option name. */
967 int namelen; /* Size of option name. */
968 const char *line; /* The start of line to match. */
969 int linelen; /* Size of string to match. */
970 int fg, bg, attr; /* Color and text attributes for the lines. */
973 static struct line_info line_info[] = {
974 #define LINE(type, line, fg, bg, attr) \
975 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
980 static enum line_type
981 get_line_type(const char *line)
983 int linelen = strlen(line);
986 for (type = 0; type < ARRAY_SIZE(line_info); type++)
987 /* Case insensitive search matches Signed-off-by lines better. */
988 if (linelen >= line_info[type].linelen &&
989 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
996 get_line_attr(enum line_type type)
998 assert(type < ARRAY_SIZE(line_info));
999 return COLOR_PAIR(type) | line_info[type].attr;
1002 static struct line_info *
1003 get_line_info(const char *name)
1005 size_t namelen = strlen(name);
1006 enum line_type type;
1008 for (type = 0; type < ARRAY_SIZE(line_info); type++)
1009 if (namelen == line_info[type].namelen &&
1010 !string_enum_compare(line_info[type].name, name, namelen))
1011 return &line_info[type];
1019 int default_bg = line_info[LINE_DEFAULT].bg;
1020 int default_fg = line_info[LINE_DEFAULT].fg;
1021 enum line_type type;
1025 if (assume_default_colors(default_fg, default_bg) == ERR) {
1026 default_bg = COLOR_BLACK;
1027 default_fg = COLOR_WHITE;
1030 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
1031 struct line_info *info = &line_info[type];
1032 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
1033 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
1035 init_pair(type, fg, bg);
1040 enum line_type type;
1043 unsigned int selected:1;
1044 unsigned int dirty:1;
1045 unsigned int cleareol:1;
1047 void *data; /* User data */
1057 enum request request;
1060 static struct keybinding default_keybindings[] = {
1061 /* View switching */
1062 { 'm', REQ_VIEW_MAIN },
1063 { 'd', REQ_VIEW_DIFF },
1064 { 'l', REQ_VIEW_LOG },
1065 { 't', REQ_VIEW_TREE },
1066 { 'f', REQ_VIEW_BLOB },
1067 { 'B', REQ_VIEW_BLAME },
1068 { 'p', REQ_VIEW_PAGER },
1069 { 'h', REQ_VIEW_HELP },
1070 { 'S', REQ_VIEW_STATUS },
1071 { 'c', REQ_VIEW_STAGE },
1073 /* View manipulation */
1074 { 'q', REQ_VIEW_CLOSE },
1075 { KEY_TAB, REQ_VIEW_NEXT },
1076 { KEY_RETURN, REQ_ENTER },
1077 { KEY_UP, REQ_PREVIOUS },
1078 { KEY_DOWN, REQ_NEXT },
1079 { 'R', REQ_REFRESH },
1080 { KEY_F(5), REQ_REFRESH },
1081 { 'O', REQ_MAXIMIZE },
1083 /* Cursor navigation */
1084 { 'k', REQ_MOVE_UP },
1085 { 'j', REQ_MOVE_DOWN },
1086 { KEY_HOME, REQ_MOVE_FIRST_LINE },
1087 { KEY_END, REQ_MOVE_LAST_LINE },
1088 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
1089 { ' ', REQ_MOVE_PAGE_DOWN },
1090 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
1091 { 'b', REQ_MOVE_PAGE_UP },
1092 { '-', REQ_MOVE_PAGE_UP },
1095 { KEY_LEFT, REQ_SCROLL_LEFT },
1096 { KEY_RIGHT, REQ_SCROLL_RIGHT },
1097 { KEY_IC, REQ_SCROLL_LINE_UP },
1098 { KEY_DC, REQ_SCROLL_LINE_DOWN },
1099 { 'w', REQ_SCROLL_PAGE_UP },
1100 { 's', REQ_SCROLL_PAGE_DOWN },
1103 { '/', REQ_SEARCH },
1104 { '?', REQ_SEARCH_BACK },
1105 { 'n', REQ_FIND_NEXT },
1106 { 'N', REQ_FIND_PREV },
1110 { 'z', REQ_STOP_LOADING },
1111 { 'v', REQ_SHOW_VERSION },
1112 { 'r', REQ_SCREEN_REDRAW },
1113 { '.', REQ_TOGGLE_LINENO },
1114 { 'D', REQ_TOGGLE_DATE },
1115 { 'A', REQ_TOGGLE_AUTHOR },
1116 { 'g', REQ_TOGGLE_REV_GRAPH },
1117 { 'F', REQ_TOGGLE_REFS },
1118 { ':', REQ_PROMPT },
1119 { 'u', REQ_STATUS_UPDATE },
1120 { '!', REQ_STATUS_REVERT },
1121 { 'M', REQ_STATUS_MERGE },
1122 { '@', REQ_STAGE_NEXT },
1123 { ',', REQ_PARENT },
1127 #define KEYMAP_INFO \
1141 #define KEYMAP_(name) KEYMAP_##name
1146 static struct enum_map keymap_table[] = {
1147 #define KEYMAP_(name) ENUM_MAP(#name, KEYMAP_##name)
1152 #define set_keymap(map, name) map_enum(map, keymap_table, name)
1154 struct keybinding_table {
1155 struct keybinding *data;
1159 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
1162 add_keybinding(enum keymap keymap, enum request request, int key)
1164 struct keybinding_table *table = &keybindings[keymap];
1166 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
1168 die("Failed to allocate keybinding");
1169 table->data[table->size].alias = key;
1170 table->data[table->size++].request = request;
1173 /* Looks for a key binding first in the given map, then in the generic map, and
1174 * lastly in the default keybindings. */
1176 get_keybinding(enum keymap keymap, int key)
1180 for (i = 0; i < keybindings[keymap].size; i++)
1181 if (keybindings[keymap].data[i].alias == key)
1182 return keybindings[keymap].data[i].request;
1184 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
1185 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
1186 return keybindings[KEYMAP_GENERIC].data[i].request;
1188 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
1189 if (default_keybindings[i].alias == key)
1190 return default_keybindings[i].request;
1192 return (enum request) key;
1201 static struct key key_table[] = {
1202 { "Enter", KEY_RETURN },
1204 { "Backspace", KEY_BACKSPACE },
1206 { "Escape", KEY_ESC },
1207 { "Left", KEY_LEFT },
1208 { "Right", KEY_RIGHT },
1210 { "Down", KEY_DOWN },
1211 { "Insert", KEY_IC },
1212 { "Delete", KEY_DC },
1214 { "Home", KEY_HOME },
1216 { "PageUp", KEY_PPAGE },
1217 { "PageDown", KEY_NPAGE },
1227 { "F10", KEY_F(10) },
1228 { "F11", KEY_F(11) },
1229 { "F12", KEY_F(12) },
1233 get_key_value(const char *name)
1237 for (i = 0; i < ARRAY_SIZE(key_table); i++)
1238 if (!strcasecmp(key_table[i].name, name))
1239 return key_table[i].value;
1241 if (strlen(name) == 1 && isprint(*name))
1248 get_key_name(int key_value)
1250 static char key_char[] = "'X'";
1251 const char *seq = NULL;
1254 for (key = 0; key < ARRAY_SIZE(key_table); key++)
1255 if (key_table[key].value == key_value)
1256 seq = key_table[key].name;
1260 isprint(key_value)) {
1261 key_char[1] = (char) key_value;
1265 return seq ? seq : "(no key)";
1269 get_key(enum request request)
1271 static char buf[BUFSIZ];
1278 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1279 struct keybinding *keybinding = &default_keybindings[i];
1281 if (keybinding->request != request)
1284 if (!string_format_from(buf, &pos, "%s%s", sep,
1285 get_key_name(keybinding->alias)))
1286 return "Too many keybindings!";
1293 struct run_request {
1296 const char *argv[SIZEOF_ARG];
1299 static struct run_request *run_request;
1300 static size_t run_requests;
1303 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
1305 struct run_request *req;
1307 if (argc >= ARRAY_SIZE(req->argv) - 1)
1310 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1315 req = &run_request[run_requests];
1316 req->keymap = keymap;
1318 req->argv[0] = NULL;
1320 if (!format_argv(req->argv, argv, FORMAT_NONE))
1323 return REQ_NONE + ++run_requests;
1326 static struct run_request *
1327 get_run_request(enum request request)
1329 if (request <= REQ_NONE)
1331 return &run_request[request - REQ_NONE - 1];
1335 add_builtin_run_requests(void)
1337 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
1338 const char *gc[] = { "git", "gc", NULL };
1345 { KEYMAP_MAIN, 'C', ARRAY_SIZE(cherry_pick) - 1, cherry_pick },
1346 { KEYMAP_GENERIC, 'G', ARRAY_SIZE(gc) - 1, gc },
1350 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1353 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argc, reqs[i].argv);
1354 if (req != REQ_NONE)
1355 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1360 * User config file handling.
1363 static struct enum_map color_map[] = {
1364 #define COLOR_MAP(name) ENUM_MAP(#name, COLOR_##name)
1376 static struct enum_map attr_map[] = {
1377 #define ATTR_MAP(name) ENUM_MAP(#name, A_##name)
1384 ATTR_MAP(UNDERLINE),
1387 #define set_color(color, name) map_enum(color, color_map, name)
1388 #define set_attribute(attr, name) map_enum(attr, attr_map, name)
1390 static int config_lineno;
1391 static bool config_errors;
1392 static const char *config_msg;
1394 /* Wants: object fgcolor bgcolor [attribute] */
1396 option_color_command(int argc, const char *argv[])
1398 struct line_info *info;
1400 if (argc != 3 && argc != 4) {
1401 config_msg = "Wrong number of arguments given to color command";
1405 info = get_line_info(argv[0]);
1407 static struct enum_map obsolete[] = {
1408 ENUM_MAP("main-delim", LINE_DELIMITER),
1409 ENUM_MAP("main-date", LINE_DATE),
1410 ENUM_MAP("main-author", LINE_AUTHOR),
1414 if (!map_enum(&index, obsolete, argv[0])) {
1415 config_msg = "Unknown color name";
1418 info = &line_info[index];
1421 if (!set_color(&info->fg, argv[1]) ||
1422 !set_color(&info->bg, argv[2])) {
1423 config_msg = "Unknown color";
1427 if (argc == 4 && !set_attribute(&info->attr, argv[3])) {
1428 config_msg = "Unknown attribute";
1435 static int parse_bool(bool *opt, const char *arg)
1437 *opt = (!strcmp(arg, "1") || !strcmp(arg, "true") || !strcmp(arg, "yes"))
1443 parse_int(int *opt, const char *arg, int min, int max)
1445 int value = atoi(arg);
1447 if (min <= value && value <= max)
1453 parse_string(char *opt, const char *arg, size_t optsize)
1455 int arglen = strlen(arg);
1460 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1461 config_msg = "Unmatched quotation";
1464 arg += 1; arglen -= 2;
1466 string_ncopy_do(opt, optsize, arg, strlen(arg));
1471 /* Wants: name = value */
1473 option_set_command(int argc, const char *argv[])
1476 config_msg = "Wrong number of arguments given to set command";
1480 if (strcmp(argv[1], "=")) {
1481 config_msg = "No value assigned";
1485 if (!strcmp(argv[0], "show-author"))
1486 return parse_bool(&opt_author, argv[2]);
1488 if (!strcmp(argv[0], "show-date"))
1489 return parse_bool(&opt_date, argv[2]);
1491 if (!strcmp(argv[0], "show-rev-graph"))
1492 return parse_bool(&opt_rev_graph, argv[2]);
1494 if (!strcmp(argv[0], "show-refs"))
1495 return parse_bool(&opt_show_refs, argv[2]);
1497 if (!strcmp(argv[0], "show-line-numbers"))
1498 return parse_bool(&opt_line_number, argv[2]);
1500 if (!strcmp(argv[0], "line-graphics"))
1501 return parse_bool(&opt_line_graphics, argv[2]);
1503 if (!strcmp(argv[0], "line-number-interval"))
1504 return parse_int(&opt_num_interval, argv[2], 1, 1024);
1506 if (!strcmp(argv[0], "author-width"))
1507 return parse_int(&opt_author_cols, argv[2], 0, 1024);
1509 if (!strcmp(argv[0], "tab-size"))
1510 return parse_int(&opt_tab_size, argv[2], 1, 1024);
1512 if (!strcmp(argv[0], "commit-encoding"))
1513 return parse_string(opt_encoding, argv[2], sizeof(opt_encoding));
1515 config_msg = "Unknown variable name";
1519 /* Wants: mode request key */
1521 option_bind_command(int argc, const char *argv[])
1523 enum request request;
1528 config_msg = "Wrong number of arguments given to bind command";
1532 if (set_keymap(&keymap, argv[0]) == ERR) {
1533 config_msg = "Unknown key map";
1537 key = get_key_value(argv[1]);
1539 config_msg = "Unknown key";
1543 request = get_request(argv[2]);
1544 if (request == REQ_NONE) {
1545 static struct enum_map obsolete[] = {
1546 ENUM_MAP("cherry-pick", REQ_NONE),
1547 ENUM_MAP("screen-resize", REQ_NONE),
1548 ENUM_MAP("tree-parent", REQ_PARENT),
1552 if (map_enum(&alias, obsolete, argv[2])) {
1553 if (alias != REQ_NONE)
1554 add_keybinding(keymap, alias, key);
1555 config_msg = "Obsolete request name";
1559 if (request == REQ_NONE && *argv[2]++ == '!')
1560 request = add_run_request(keymap, key, argc - 2, argv + 2);
1561 if (request == REQ_NONE) {
1562 config_msg = "Unknown request name";
1566 add_keybinding(keymap, request, key);
1572 set_option(const char *opt, char *value)
1574 const char *argv[SIZEOF_ARG];
1577 if (!argv_from_string(argv, &argc, value)) {
1578 config_msg = "Too many option arguments";
1582 if (!strcmp(opt, "color"))
1583 return option_color_command(argc, argv);
1585 if (!strcmp(opt, "set"))
1586 return option_set_command(argc, argv);
1588 if (!strcmp(opt, "bind"))
1589 return option_bind_command(argc, argv);
1591 config_msg = "Unknown option command";
1596 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1601 config_msg = "Internal error";
1603 /* Check for comment markers, since read_properties() will
1604 * only ensure opt and value are split at first " \t". */
1605 optlen = strcspn(opt, "#");
1609 if (opt[optlen] != 0) {
1610 config_msg = "No option value";
1614 /* Look for comment endings in the value. */
1615 size_t len = strcspn(value, "#");
1617 if (len < valuelen) {
1619 value[valuelen] = 0;
1622 status = set_option(opt, value);
1625 if (status == ERR) {
1626 warn("Error on line %d, near '%.*s': %s",
1627 config_lineno, (int) optlen, opt, config_msg);
1628 config_errors = TRUE;
1631 /* Always keep going if errors are encountered. */
1636 load_option_file(const char *path)
1640 /* It's OK that the file doesn't exist. */
1641 if (!io_open(&io, path))
1645 config_errors = FALSE;
1647 if (io_load(&io, " \t", read_option) == ERR ||
1648 config_errors == TRUE)
1649 warn("Errors while loading %s.", path);
1655 const char *home = getenv("HOME");
1656 const char *tigrc_user = getenv("TIGRC_USER");
1657 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1658 char buf[SIZEOF_STR];
1660 add_builtin_run_requests();
1662 if (!tigrc_system) {
1663 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1667 load_option_file(tigrc_system);
1670 if (!home || !string_format(buf, "%s/.tigrc", home))
1674 load_option_file(tigrc_user);
1687 /* The display array of active views and the index of the current view. */
1688 static struct view *display[2];
1689 static unsigned int current_view;
1691 #define foreach_displayed_view(view, i) \
1692 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1694 #define displayed_views() (display[1] != NULL ? 2 : 1)
1696 /* Current head and commit ID */
1697 static char ref_blob[SIZEOF_REF] = "";
1698 static char ref_commit[SIZEOF_REF] = "HEAD";
1699 static char ref_head[SIZEOF_REF] = "HEAD";
1702 const char *name; /* View name */
1703 const char *cmd_env; /* Command line set via environment */
1704 const char *id; /* Points to either of ref_{head,commit,blob} */
1706 struct view_ops *ops; /* View operations */
1708 enum keymap keymap; /* What keymap does this view have */
1709 bool git_dir; /* Whether the view requires a git directory. */
1711 char ref[SIZEOF_REF]; /* Hovered commit reference */
1712 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1714 int height, width; /* The width and height of the main window */
1715 WINDOW *win; /* The main window */
1716 WINDOW *title; /* The title window living below the main window */
1719 unsigned long offset; /* Offset of the window top */
1720 unsigned long yoffset; /* Offset from the window side. */
1721 unsigned long lineno; /* Current line number */
1722 unsigned long p_offset; /* Previous offset of the window top */
1723 unsigned long p_yoffset;/* Previous offset from the window side */
1724 unsigned long p_lineno; /* Previous current line number */
1725 bool p_restore; /* Should the previous position be restored. */
1728 char grep[SIZEOF_STR]; /* Search string */
1729 regex_t *regex; /* Pre-compiled regexp */
1731 /* If non-NULL, points to the view that opened this view. If this view
1732 * is closed tig will switch back to the parent view. */
1733 struct view *parent;
1736 size_t lines; /* Total number of lines */
1737 struct line *line; /* Line index */
1738 size_t line_alloc; /* Total number of allocated lines */
1739 unsigned int digits; /* Number of digits in the lines member. */
1742 struct line *curline; /* Line currently being drawn. */
1743 enum line_type curtype; /* Attribute currently used for drawing. */
1744 unsigned long col; /* Column when drawing. */
1745 bool has_scrolled; /* View was scrolled. */
1746 bool can_hscroll; /* View can be scrolled horizontally. */
1756 /* What type of content being displayed. Used in the title bar. */
1758 /* Default command arguments. */
1760 /* Open and reads in all view content. */
1761 bool (*open)(struct view *view);
1762 /* Read one line; updates view->line. */
1763 bool (*read)(struct view *view, char *data);
1764 /* Draw one line; @lineno must be < view->height. */
1765 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1766 /* Depending on view handle a special requests. */
1767 enum request (*request)(struct view *view, enum request request, struct line *line);
1768 /* Search for regexp in a line. */
1769 bool (*grep)(struct view *view, struct line *line);
1771 void (*select)(struct view *view, struct line *line);
1774 static struct view_ops blame_ops;
1775 static struct view_ops blob_ops;
1776 static struct view_ops diff_ops;
1777 static struct view_ops help_ops;
1778 static struct view_ops log_ops;
1779 static struct view_ops main_ops;
1780 static struct view_ops pager_ops;
1781 static struct view_ops stage_ops;
1782 static struct view_ops status_ops;
1783 static struct view_ops tree_ops;
1785 #define VIEW_STR(name, env, ref, ops, map, git) \
1786 { name, #env, ref, ops, map, git }
1788 #define VIEW_(id, name, ops, git, ref) \
1789 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1792 static struct view views[] = {
1793 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1794 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1795 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1796 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1797 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1798 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1799 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1800 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1801 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1802 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1805 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1806 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1808 #define foreach_view(view, i) \
1809 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1811 #define view_is_displayed(view) \
1812 (view == display[0] || view == display[1])
1819 static int line_graphics[] = {
1820 /* LINE_GRAPHIC_VLINE: */ '|'
1824 set_view_attr(struct view *view, enum line_type type)
1826 if (!view->curline->selected && view->curtype != type) {
1827 wattrset(view->win, get_line_attr(type));
1828 wchgat(view->win, -1, 0, type, NULL);
1829 view->curtype = type;
1834 draw_chars(struct view *view, enum line_type type, const char *string,
1835 int max_len, bool use_tilde)
1839 int trimmed = FALSE;
1840 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1846 len = utf8_length(&string, skip, &col, max_len, &trimmed, use_tilde);
1848 col = len = strlen(string);
1849 if (len > max_len) {
1853 col = len = max_len;
1858 set_view_attr(view, type);
1860 waddnstr(view->win, string, len);
1861 if (trimmed && use_tilde) {
1862 set_view_attr(view, LINE_DELIMITER);
1863 waddch(view->win, '~');
1867 if (view->col + col >= view->width + view->yoffset)
1868 view->can_hscroll = TRUE;
1874 draw_space(struct view *view, enum line_type type, int max, int spaces)
1876 static char space[] = " ";
1879 spaces = MIN(max, spaces);
1881 while (spaces > 0) {
1882 int len = MIN(spaces, sizeof(space) - 1);
1884 col += draw_chars(view, type, space, spaces, FALSE);
1892 draw_lineno(struct view *view, unsigned int lineno)
1894 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1896 int digits3 = view->digits < 3 ? 3 : view->digits;
1897 int max_number = MIN(digits3, STRING_SIZE(number));
1898 int max = view->width - view->col;
1901 if (max < max_number)
1904 lineno += view->offset + 1;
1905 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1906 static char fmt[] = "%1ld";
1908 if (view->digits <= 9)
1909 fmt[1] = '0' + digits3;
1911 if (!string_format(number, fmt, lineno))
1913 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1915 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1918 if (col < max && skip <= col) {
1919 set_view_attr(view, LINE_DEFAULT);
1920 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1925 if (col < max && skip <= col)
1926 col = draw_space(view, LINE_DEFAULT, max - col, 1);
1929 return view->width + view->yoffset <= view->col;
1933 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1935 view->col += draw_chars(view, type, string, view->width + view->yoffset - view->col, trim);
1936 return view->width - view->col <= 0;
1940 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1942 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1943 int max = view->width - view->col;
1949 set_view_attr(view, type);
1950 /* Using waddch() instead of waddnstr() ensures that
1951 * they'll be rendered correctly for the cursor line. */
1952 for (i = skip; i < size; i++)
1953 waddch(view->win, graphic[i]);
1956 if (size < max && skip <= size)
1957 waddch(view->win, ' ');
1960 return view->width - view->col <= 0;
1964 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1966 int max = MIN(view->width - view->col, len);
1970 col = draw_chars(view, type, text, max - 1, trim);
1972 col = draw_space(view, type, max - 1, max - 1);
1975 view->col += draw_space(view, LINE_DEFAULT, max - col, max - col);
1976 return view->width + view->yoffset <= view->col;
1980 draw_date(struct view *view, struct tm *time)
1982 char buf[DATE_COLS];
1987 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1988 date = timelen ? buf : NULL;
1990 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
1994 draw_author(struct view *view, const char *author)
1996 bool trim = opt_author_cols == 0 || opt_author_cols > 5 || !author;
1999 static char initials[10];
2002 #define is_initial_sep(c) (isspace(c) || ispunct(c) || (c) == '@')
2004 memset(initials, 0, sizeof(initials));
2005 for (pos = 0; *author && pos < opt_author_cols - 1; author++, pos++) {
2006 while (is_initial_sep(*author))
2008 strncpy(&initials[pos], author, sizeof(initials) - 1 - pos);
2009 while (*author && !is_initial_sep(author[1]))
2016 return draw_field(view, LINE_AUTHOR, author, opt_author_cols, trim);
2020 draw_mode(struct view *view, mode_t mode)
2022 static const char dir_mode[] = "drwxr-xr-x";
2023 static const char link_mode[] = "lrwxrwxrwx";
2024 static const char exe_mode[] = "-rwxr-xr-x";
2025 static const char file_mode[] = "-rw-r--r--";
2030 else if (S_ISLNK(mode))
2032 else if (mode & S_IXUSR)
2037 return draw_field(view, LINE_MODE, str, sizeof(file_mode), FALSE);
2041 draw_view_line(struct view *view, unsigned int lineno)
2044 bool selected = (view->offset + lineno == view->lineno);
2046 assert(view_is_displayed(view));
2048 if (view->offset + lineno >= view->lines)
2051 line = &view->line[view->offset + lineno];
2053 wmove(view->win, lineno, 0);
2055 wclrtoeol(view->win);
2057 view->curline = line;
2058 view->curtype = LINE_NONE;
2059 line->selected = FALSE;
2060 line->dirty = line->cleareol = 0;
2063 set_view_attr(view, LINE_CURSOR);
2064 line->selected = TRUE;
2065 view->ops->select(view, line);
2068 return view->ops->draw(view, line, lineno);
2072 redraw_view_dirty(struct view *view)
2077 for (lineno = 0; lineno < view->height; lineno++) {
2078 if (view->offset + lineno >= view->lines)
2080 if (!view->line[view->offset + lineno].dirty)
2083 if (!draw_view_line(view, lineno))
2089 wnoutrefresh(view->win);
2093 redraw_view_from(struct view *view, int lineno)
2095 assert(0 <= lineno && lineno < view->height);
2098 view->can_hscroll = FALSE;
2100 for (; lineno < view->height; lineno++) {
2101 if (!draw_view_line(view, lineno))
2105 wnoutrefresh(view->win);
2109 redraw_view(struct view *view)
2112 redraw_view_from(view, 0);
2117 update_view_title(struct view *view)
2119 char buf[SIZEOF_STR];
2120 char state[SIZEOF_STR];
2121 size_t bufpos = 0, statelen = 0;
2123 assert(view_is_displayed(view));
2125 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2126 unsigned int view_lines = view->offset + view->height;
2127 unsigned int lines = view->lines
2128 ? MIN(view_lines, view->lines) * 100 / view->lines
2131 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2140 time_t secs = time(NULL) - view->start_time;
2142 /* Three git seconds are a long time ... */
2144 string_format_from(state, &statelen, " loading %lds", secs);
2147 string_format_from(buf, &bufpos, "[%s]", view->name);
2148 if (*view->ref && bufpos < view->width) {
2149 size_t refsize = strlen(view->ref);
2150 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2152 if (minsize < view->width)
2153 refsize = view->width - minsize + 7;
2154 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2157 if (statelen && bufpos < view->width) {
2158 string_format_from(buf, &bufpos, "%s", state);
2161 if (view == display[current_view])
2162 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2164 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2166 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2167 wclrtoeol(view->title);
2168 wnoutrefresh(view->title);
2172 resize_display(void)
2175 struct view *base = display[0];
2176 struct view *view = display[1] ? display[1] : display[0];
2178 /* Setup window dimensions */
2180 getmaxyx(stdscr, base->height, base->width);
2182 /* Make room for the status window. */
2186 /* Horizontal split. */
2187 view->width = base->width;
2188 view->height = SCALE_SPLIT_VIEW(base->height);
2189 base->height -= view->height;
2191 /* Make room for the title bar. */
2195 /* Make room for the title bar. */
2200 foreach_displayed_view (view, i) {
2202 view->win = newwin(view->height, 0, offset, 0);
2204 die("Failed to create %s view", view->name);
2206 scrollok(view->win, FALSE);
2208 view->title = newwin(1, 0, offset + view->height, 0);
2210 die("Failed to create title window");
2213 wresize(view->win, view->height, view->width);
2214 mvwin(view->win, offset, 0);
2215 mvwin(view->title, offset + view->height, 0);
2218 offset += view->height + 1;
2223 redraw_display(bool clear)
2228 foreach_displayed_view (view, i) {
2232 update_view_title(view);
2237 toggle_view_option(bool *option, const char *help)
2240 redraw_display(FALSE);
2241 report("%sabling %s", *option ? "En" : "Dis", help);
2248 /* Scrolling backend */
2250 do_scroll_view(struct view *view, int lines)
2252 bool redraw_current_line = FALSE;
2254 /* The rendering expects the new offset. */
2255 view->offset += lines;
2257 assert(0 <= view->offset && view->offset < view->lines);
2260 /* Move current line into the view. */
2261 if (view->lineno < view->offset) {
2262 view->lineno = view->offset;
2263 redraw_current_line = TRUE;
2264 } else if (view->lineno >= view->offset + view->height) {
2265 view->lineno = view->offset + view->height - 1;
2266 redraw_current_line = TRUE;
2269 assert(view->offset <= view->lineno && view->lineno < view->lines);
2271 /* Redraw the whole screen if scrolling is pointless. */
2272 if (view->height < ABS(lines)) {
2276 int line = lines > 0 ? view->height - lines : 0;
2277 int end = line + ABS(lines);
2279 scrollok(view->win, TRUE);
2280 wscrl(view->win, lines);
2281 scrollok(view->win, FALSE);
2283 while (line < end && draw_view_line(view, line))
2286 if (redraw_current_line)
2287 draw_view_line(view, view->lineno - view->offset);
2288 wnoutrefresh(view->win);
2291 view->has_scrolled = TRUE;
2295 /* Scroll frontend */
2297 scroll_view(struct view *view, enum request request)
2301 assert(view_is_displayed(view));
2304 case REQ_SCROLL_LEFT:
2305 if (view->yoffset == 0) {
2306 report("Cannot scroll beyond the first column");
2309 if (view->yoffset <= SCROLL_INTERVAL)
2312 view->yoffset -= SCROLL_INTERVAL;
2313 redraw_view_from(view, 0);
2316 case REQ_SCROLL_RIGHT:
2317 if (!view->can_hscroll) {
2318 report("Cannot scroll beyond the last column");
2321 view->yoffset += SCROLL_INTERVAL;
2325 case REQ_SCROLL_PAGE_DOWN:
2326 lines = view->height;
2327 case REQ_SCROLL_LINE_DOWN:
2328 if (view->offset + lines > view->lines)
2329 lines = view->lines - view->offset;
2331 if (lines == 0 || view->offset + view->height >= view->lines) {
2332 report("Cannot scroll beyond the last line");
2337 case REQ_SCROLL_PAGE_UP:
2338 lines = view->height;
2339 case REQ_SCROLL_LINE_UP:
2340 if (lines > view->offset)
2341 lines = view->offset;
2344 report("Cannot scroll beyond the first line");
2352 die("request %d not handled in switch", request);
2355 do_scroll_view(view, lines);
2360 move_view(struct view *view, enum request request)
2362 int scroll_steps = 0;
2366 case REQ_MOVE_FIRST_LINE:
2367 steps = -view->lineno;
2370 case REQ_MOVE_LAST_LINE:
2371 steps = view->lines - view->lineno - 1;
2374 case REQ_MOVE_PAGE_UP:
2375 steps = view->height > view->lineno
2376 ? -view->lineno : -view->height;
2379 case REQ_MOVE_PAGE_DOWN:
2380 steps = view->lineno + view->height >= view->lines
2381 ? view->lines - view->lineno - 1 : view->height;
2393 die("request %d not handled in switch", request);
2396 if (steps <= 0 && view->lineno == 0) {
2397 report("Cannot move beyond the first line");
2400 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2401 report("Cannot move beyond the last line");
2405 /* Move the current line */
2406 view->lineno += steps;
2407 assert(0 <= view->lineno && view->lineno < view->lines);
2409 /* Check whether the view needs to be scrolled */
2410 if (view->lineno < view->offset ||
2411 view->lineno >= view->offset + view->height) {
2412 scroll_steps = steps;
2413 if (steps < 0 && -steps > view->offset) {
2414 scroll_steps = -view->offset;
2416 } else if (steps > 0) {
2417 if (view->lineno == view->lines - 1 &&
2418 view->lines > view->height) {
2419 scroll_steps = view->lines - view->offset - 1;
2420 if (scroll_steps >= view->height)
2421 scroll_steps -= view->height - 1;
2426 if (!view_is_displayed(view)) {
2427 view->offset += scroll_steps;
2428 assert(0 <= view->offset && view->offset < view->lines);
2429 view->ops->select(view, &view->line[view->lineno]);
2433 /* Repaint the old "current" line if we be scrolling */
2434 if (ABS(steps) < view->height)
2435 draw_view_line(view, view->lineno - steps - view->offset);
2438 do_scroll_view(view, scroll_steps);
2442 /* Draw the current line */
2443 draw_view_line(view, view->lineno - view->offset);
2445 wnoutrefresh(view->win);
2454 static void search_view(struct view *view, enum request request);
2457 select_view_line(struct view *view, unsigned long lineno)
2459 if (lineno - view->offset >= view->height) {
2460 view->offset = lineno;
2461 view->lineno = lineno;
2462 if (view_is_displayed(view))
2466 unsigned long old_lineno = view->lineno - view->offset;
2468 view->lineno = lineno;
2469 if (view_is_displayed(view)) {
2470 draw_view_line(view, old_lineno);
2471 draw_view_line(view, view->lineno - view->offset);
2472 wnoutrefresh(view->win);
2474 view->ops->select(view, &view->line[view->lineno]);
2480 find_next(struct view *view, enum request request)
2482 unsigned long lineno = view->lineno;
2487 report("No previous search");
2489 search_view(view, request);
2499 case REQ_SEARCH_BACK:
2508 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2509 lineno += direction;
2511 /* Note, lineno is unsigned long so will wrap around in which case it
2512 * will become bigger than view->lines. */
2513 for (; lineno < view->lines; lineno += direction) {
2514 if (view->ops->grep(view, &view->line[lineno])) {
2515 select_view_line(view, lineno);
2516 report("Line %ld matches '%s'", lineno + 1, view->grep);
2521 report("No match found for '%s'", view->grep);
2525 search_view(struct view *view, enum request request)
2530 regfree(view->regex);
2533 view->regex = calloc(1, sizeof(*view->regex));
2538 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2539 if (regex_err != 0) {
2540 char buf[SIZEOF_STR] = "unknown error";
2542 regerror(regex_err, view->regex, buf, sizeof(buf));
2543 report("Search failed: %s", buf);
2547 string_copy(view->grep, opt_search);
2549 find_next(view, request);
2553 * Incremental updating
2557 reset_view(struct view *view)
2561 for (i = 0; i < view->lines; i++)
2562 free(view->line[i].data);
2565 view->p_offset = view->offset;
2566 view->p_yoffset = view->yoffset;
2567 view->p_lineno = view->lineno;
2574 view->line_alloc = 0;
2576 view->update_secs = 0;
2580 free_argv(const char *argv[])
2584 for (argc = 0; argv[argc]; argc++)
2585 free((void *) argv[argc]);
2589 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2591 char buf[SIZEOF_STR];
2593 bool noreplace = flags == FORMAT_NONE;
2595 free_argv(dst_argv);
2597 for (argc = 0; src_argv[argc]; argc++) {
2598 const char *arg = src_argv[argc];
2602 char *next = strstr(arg, "%(");
2603 int len = next - arg;
2606 if (!next || noreplace) {
2607 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2612 } else if (!prefixcmp(next, "%(directory)")) {
2615 } else if (!prefixcmp(next, "%(file)")) {
2618 } else if (!prefixcmp(next, "%(ref)")) {
2619 value = *opt_ref ? opt_ref : "HEAD";
2621 } else if (!prefixcmp(next, "%(head)")) {
2624 } else if (!prefixcmp(next, "%(commit)")) {
2627 } else if (!prefixcmp(next, "%(blob)")) {
2631 report("Unknown replacement: `%s`", next);
2635 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2638 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2641 dst_argv[argc] = strdup(buf);
2642 if (!dst_argv[argc])
2646 dst_argv[argc] = NULL;
2648 return src_argv[argc] == NULL;
2652 restore_view_position(struct view *view)
2654 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2657 /* Changing the view position cancels the restoring. */
2658 /* FIXME: Changing back to the first line is not detected. */
2659 if (view->offset != 0 || view->lineno != 0) {
2660 view->p_restore = FALSE;
2664 if (view->p_lineno >= view->lines) {
2665 view->p_lineno = view->lines > 0 ? view->lines - 1 : 0;
2666 if (view->p_offset >= view->p_lineno) {
2667 unsigned long half = view->height / 2;
2669 if (view->p_lineno > half)
2670 view->p_offset = view->p_lineno - half;
2676 if (view_is_displayed(view) &&
2677 view->offset != view->p_offset &&
2678 view->lineno != view->p_lineno)
2681 view->offset = view->p_offset;
2682 view->yoffset = view->p_yoffset;
2683 view->lineno = view->p_lineno;
2684 view->p_restore = FALSE;
2690 end_update(struct view *view, bool force)
2694 while (!view->ops->read(view, NULL))
2697 set_nonblocking_input(FALSE);
2699 kill_io(view->pipe);
2700 done_io(view->pipe);
2705 setup_update(struct view *view, const char *vid)
2707 set_nonblocking_input(TRUE);
2709 string_copy_rev(view->vid, vid);
2710 view->pipe = &view->io;
2711 view->start_time = time(NULL);
2715 prepare_update(struct view *view, const char *argv[], const char *dir,
2716 enum format_flags flags)
2719 end_update(view, TRUE);
2720 return init_io_rd(&view->io, argv, dir, flags);
2724 prepare_update_file(struct view *view, const char *name)
2727 end_update(view, TRUE);
2728 return io_open(&view->io, name);
2732 begin_update(struct view *view, bool refresh)
2735 end_update(view, TRUE);
2738 if (!start_io(&view->io))
2742 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2745 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2748 /* Put the current ref_* value to the view title ref
2749 * member. This is needed by the blob view. Most other
2750 * views sets it automatically after loading because the
2751 * first line is a commit line. */
2752 string_copy_rev(view->ref, view->id);
2755 setup_update(view, view->id);
2760 #define ITEM_CHUNK_SIZE 256
2762 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2764 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2765 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2767 if (mem == NULL || num_chunks != num_chunks_new) {
2768 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2769 mem = realloc(mem, *size * item_size);
2775 static struct line *
2776 realloc_lines(struct view *view, size_t line_size)
2778 size_t alloc = view->line_alloc;
2779 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2780 sizeof(*view->line));
2786 view->line_alloc = alloc;
2791 update_view(struct view *view)
2793 char out_buffer[BUFSIZ * 2];
2795 /* Clear the view and redraw everything since the tree sorting
2796 * might have rearranged things. */
2797 bool redraw = view->lines == 0;
2798 bool can_read = TRUE;
2803 if (!io_can_read(view->pipe)) {
2804 if (view->lines == 0) {
2805 time_t secs = time(NULL) - view->start_time;
2807 if (secs > 1 && secs > view->update_secs) {
2808 if (view->update_secs == 0)
2810 update_view_title(view);
2811 view->update_secs = secs;
2817 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2818 if (opt_iconv != ICONV_NONE) {
2819 ICONV_CONST char *inbuf = line;
2820 size_t inlen = strlen(line) + 1;
2822 char *outbuf = out_buffer;
2823 size_t outlen = sizeof(out_buffer);
2827 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2828 if (ret != (size_t) -1)
2832 if (!view->ops->read(view, line)) {
2833 report("Allocation failure");
2834 end_update(view, TRUE);
2840 unsigned long lines = view->lines;
2843 for (digits = 0; lines; digits++)
2846 /* Keep the displayed view in sync with line number scaling. */
2847 if (digits != view->digits) {
2848 view->digits = digits;
2849 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2854 if (io_error(view->pipe)) {
2855 report("Failed to read: %s", io_strerror(view->pipe));
2856 end_update(view, TRUE);
2858 } else if (io_eof(view->pipe)) {
2860 end_update(view, FALSE);
2863 if (restore_view_position(view))
2866 if (!view_is_displayed(view))
2870 redraw_view_from(view, 0);
2872 redraw_view_dirty(view);
2874 /* Update the title _after_ the redraw so that if the redraw picks up a
2875 * commit reference in view->ref it'll be available here. */
2876 update_view_title(view);
2880 static struct line *
2881 add_line_data(struct view *view, void *data, enum line_type type)
2885 if (!realloc_lines(view, view->lines + 1))
2888 line = &view->line[view->lines++];
2889 memset(line, 0, sizeof(*line));
2897 static struct line *
2898 add_line_text(struct view *view, const char *text, enum line_type type)
2900 char *data = text ? strdup(text) : NULL;
2902 return data ? add_line_data(view, data, type) : NULL;
2905 static struct line *
2906 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2908 char buf[SIZEOF_STR];
2911 va_start(args, fmt);
2912 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2916 return buf[0] ? add_line_text(view, buf, type) : NULL;
2924 OPEN_DEFAULT = 0, /* Use default view switching. */
2925 OPEN_SPLIT = 1, /* Split current view. */
2926 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2927 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2928 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2929 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2930 OPEN_PREPARED = 32, /* Open already prepared command. */
2934 open_view(struct view *prev, enum request request, enum open_flags flags)
2936 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2937 bool split = !!(flags & OPEN_SPLIT);
2938 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2939 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2940 struct view *view = VIEW(request);
2941 int nviews = displayed_views();
2942 struct view *base_view = display[0];
2944 if (view == prev && nviews == 1 && !reload) {
2945 report("Already in %s view", view->name);
2949 if (view->git_dir && !opt_git_dir[0]) {
2950 report("The %s view is disabled in pager view", view->name);
2958 } else if (!nomaximize) {
2959 /* Maximize the current view. */
2960 memset(display, 0, sizeof(display));
2962 display[current_view] = view;
2965 /* Resize the view when switching between split- and full-screen,
2966 * or when switching between two different full-screen views. */
2967 if (nviews != displayed_views() ||
2968 (nviews == 1 && base_view != display[0]))
2971 if (view->ops->open) {
2973 end_update(view, TRUE);
2974 if (!view->ops->open(view)) {
2975 report("Failed to load %s view", view->name);
2978 restore_view_position(view);
2980 } else if ((reload || strcmp(view->vid, view->id)) &&
2981 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2982 report("Failed to load %s view", view->name);
2986 if (split && prev->lineno - prev->offset >= prev->height) {
2987 /* Take the title line into account. */
2988 int lines = prev->lineno - prev->offset - prev->height + 1;
2990 /* Scroll the view that was split if the current line is
2991 * outside the new limited view. */
2992 do_scroll_view(prev, lines);
2995 if (prev && view != prev) {
2996 if (split && !backgrounded) {
2997 /* "Blur" the previous view. */
2998 update_view_title(prev);
3001 view->parent = prev;
3004 if (view->pipe && view->lines == 0) {
3005 /* Clear the old view and let the incremental updating refill
3008 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
3010 } else if (view_is_displayed(view)) {
3015 /* If the view is backgrounded the above calls to report()
3016 * won't redraw the view title. */
3018 update_view_title(view);
3022 open_external_viewer(const char *argv[], const char *dir)
3024 def_prog_mode(); /* save current tty modes */
3025 endwin(); /* restore original tty modes */
3026 run_io_fg(argv, dir);
3027 fprintf(stderr, "Press Enter to continue");
3030 redraw_display(TRUE);
3034 open_mergetool(const char *file)
3036 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
3038 open_external_viewer(mergetool_argv, opt_cdup);
3042 open_editor(bool from_root, const char *file)
3044 const char *editor_argv[] = { "vi", file, NULL };
3047 editor = getenv("GIT_EDITOR");
3048 if (!editor && *opt_editor)
3049 editor = opt_editor;
3051 editor = getenv("VISUAL");
3053 editor = getenv("EDITOR");
3057 editor_argv[0] = editor;
3058 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3062 open_run_request(enum request request)
3064 struct run_request *req = get_run_request(request);
3065 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3068 report("Unknown run request");
3072 if (format_argv(argv, req->argv, FORMAT_ALL))
3073 open_external_viewer(argv, NULL);
3078 * User request switch noodle
3082 view_driver(struct view *view, enum request request)
3086 if (request == REQ_NONE) {
3091 if (request > REQ_NONE) {
3092 open_run_request(request);
3093 /* FIXME: When all views can refresh always do this. */
3094 if (view == VIEW(REQ_VIEW_STATUS) ||
3095 view == VIEW(REQ_VIEW_MAIN) ||
3096 view == VIEW(REQ_VIEW_LOG) ||
3097 view == VIEW(REQ_VIEW_STAGE))
3098 request = REQ_REFRESH;
3103 if (view && view->lines) {
3104 request = view->ops->request(view, request, &view->line[view->lineno]);
3105 if (request == REQ_NONE)
3112 case REQ_MOVE_PAGE_UP:
3113 case REQ_MOVE_PAGE_DOWN:
3114 case REQ_MOVE_FIRST_LINE:
3115 case REQ_MOVE_LAST_LINE:
3116 move_view(view, request);
3119 case REQ_SCROLL_LEFT:
3120 case REQ_SCROLL_RIGHT:
3121 case REQ_SCROLL_LINE_DOWN:
3122 case REQ_SCROLL_LINE_UP:
3123 case REQ_SCROLL_PAGE_DOWN:
3124 case REQ_SCROLL_PAGE_UP:
3125 scroll_view(view, request);
3128 case REQ_VIEW_BLAME:
3130 report("No file chosen, press %s to open tree view",
3131 get_key(REQ_VIEW_TREE));
3134 open_view(view, request, OPEN_DEFAULT);
3139 report("No file chosen, press %s to open tree view",
3140 get_key(REQ_VIEW_TREE));
3143 open_view(view, request, OPEN_DEFAULT);
3146 case REQ_VIEW_PAGER:
3147 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3148 report("No pager content, press %s to run command from prompt",
3149 get_key(REQ_PROMPT));
3152 open_view(view, request, OPEN_DEFAULT);
3155 case REQ_VIEW_STAGE:
3156 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3157 report("No stage content, press %s to open the status view and choose file",
3158 get_key(REQ_VIEW_STATUS));
3161 open_view(view, request, OPEN_DEFAULT);
3164 case REQ_VIEW_STATUS:
3165 if (opt_is_inside_work_tree == FALSE) {
3166 report("The status view requires a working tree");
3169 open_view(view, request, OPEN_DEFAULT);
3177 open_view(view, request, OPEN_DEFAULT);
3182 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3184 if ((view == VIEW(REQ_VIEW_DIFF) &&
3185 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3186 (view == VIEW(REQ_VIEW_DIFF) &&
3187 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3188 (view == VIEW(REQ_VIEW_STAGE) &&
3189 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3190 (view == VIEW(REQ_VIEW_BLOB) &&
3191 view->parent == VIEW(REQ_VIEW_TREE))) {
3194 view = view->parent;
3195 line = view->lineno;
3196 move_view(view, request);
3197 if (view_is_displayed(view))
3198 update_view_title(view);
3199 if (line != view->lineno)
3200 view->ops->request(view, REQ_ENTER,
3201 &view->line[view->lineno]);
3204 move_view(view, request);
3210 int nviews = displayed_views();
3211 int next_view = (current_view + 1) % nviews;
3213 if (next_view == current_view) {
3214 report("Only one view is displayed");
3218 current_view = next_view;
3219 /* Blur out the title of the previous view. */
3220 update_view_title(view);
3225 report("Refreshing is not yet supported for the %s view", view->name);
3229 if (displayed_views() == 2)
3230 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3233 case REQ_TOGGLE_LINENO:
3234 toggle_view_option(&opt_line_number, "line numbers");
3237 case REQ_TOGGLE_DATE:
3238 toggle_view_option(&opt_date, "date display");
3241 case REQ_TOGGLE_AUTHOR:
3242 toggle_view_option(&opt_author, "author display");
3245 case REQ_TOGGLE_REV_GRAPH:
3246 toggle_view_option(&opt_rev_graph, "revision graph display");
3249 case REQ_TOGGLE_REFS:
3250 toggle_view_option(&opt_show_refs, "reference display");
3254 case REQ_SEARCH_BACK:
3255 search_view(view, request);
3260 find_next(view, request);
3263 case REQ_STOP_LOADING:
3264 for (i = 0; i < ARRAY_SIZE(views); i++) {
3267 report("Stopped loading the %s view", view->name),
3268 end_update(view, TRUE);
3272 case REQ_SHOW_VERSION:
3273 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3276 case REQ_SCREEN_REDRAW:
3277 redraw_display(TRUE);
3281 report("Nothing to edit");
3285 report("Nothing to enter");
3288 case REQ_VIEW_CLOSE:
3289 /* XXX: Mark closed views by letting view->parent point to the
3290 * view itself. Parents to closed view should never be
3293 view->parent->parent != view->parent) {
3294 memset(display, 0, sizeof(display));
3296 display[current_view] = view->parent;
3297 view->parent = view;
3299 redraw_display(FALSE);
3308 report("Unknown key, press 'h' for help");
3317 * View backend utilities
3320 /* Parse author lines where the name may be empty:
3321 * author <email@address.tld> 1138474660 +0100
3324 parse_author_line(char *ident, char *author, size_t authorsize, struct tm *tm)
3326 char *nameend = strchr(ident, '<');
3327 char *emailend = strchr(ident, '>');
3329 if (nameend && emailend)
3330 *nameend = *emailend = 0;
3331 ident = chomp_string(ident);
3334 ident = chomp_string(nameend + 1);
3339 string_ncopy_do(author, authorsize, ident, strlen(ident));
3341 /* Parse epoch and timezone */
3342 if (emailend && emailend[1] == ' ') {
3343 char *secs = emailend + 2;
3344 char *zone = strchr(secs, ' ');
3345 time_t time = (time_t) atol(secs);
3347 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
3351 tz = ('0' - zone[1]) * 60 * 60 * 10;
3352 tz += ('0' - zone[2]) * 60 * 60;
3353 tz += ('0' - zone[3]) * 60;
3354 tz += ('0' - zone[4]) * 60;
3362 gmtime_r(&time, tm);
3366 static enum input_status
3367 select_commit_parent_handler(void *data, char *buf, int c)
3369 size_t parents = *(size_t *) data;
3376 parent = atoi(buf) * 10;
3379 if (parent > parents)
3385 select_commit_parent(const char *id, char rev[SIZEOF_REV])
3387 char buf[SIZEOF_STR * 4];
3388 const char *revlist_argv[] = {
3389 "git", "rev-list", "-1", "--parents", id, NULL
3393 if (!run_io_buf(revlist_argv, buf, sizeof(buf)) ||
3394 !*chomp_string(buf) ||
3395 (parents = (strlen(buf) / 40) - 1) < 0) {
3396 report("Failed to get parent information");
3399 } else if (parents == 0) {
3400 report("The selected commit has no parents");
3405 char prompt[SIZEOF_STR];
3408 if (!string_format(prompt, "Which parent? [1..%d] ", parents))
3410 result = prompt_input(prompt, select_commit_parent_handler, &parents);
3413 parents = atoi(result);
3416 string_copy_rev(rev, &buf[41 * parents]);
3425 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3427 char text[SIZEOF_STR];
3429 if (opt_line_number && draw_lineno(view, lineno))
3432 string_expand(text, sizeof(text), line->data, opt_tab_size);
3433 draw_text(view, line->type, text, TRUE);
3438 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3440 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3441 char refbuf[SIZEOF_STR];
3444 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3445 ref = chomp_string(refbuf);
3450 /* This is the only fatal call, since it can "corrupt" the buffer. */
3451 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3458 add_pager_refs(struct view *view, struct line *line)
3460 char buf[SIZEOF_STR];
3461 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3463 size_t bufpos = 0, refpos = 0;
3464 const char *sep = "Refs: ";
3465 bool is_tag = FALSE;
3467 assert(line->type == LINE_COMMIT);
3469 refs = get_refs(commit_id);
3471 if (view == VIEW(REQ_VIEW_DIFF))
3472 goto try_add_describe_ref;
3477 struct ref *ref = refs[refpos];
3478 const char *fmt = ref->tag ? "%s[%s]" :
3479 ref->remote ? "%s<%s>" : "%s%s";
3481 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3486 } while (refs[refpos++]->next);
3488 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3489 try_add_describe_ref:
3490 /* Add <tag>-g<commit_id> "fake" reference. */
3491 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3498 add_line_text(view, buf, LINE_PP_REFS);
3502 pager_read(struct view *view, char *data)
3509 line = add_line_text(view, data, get_line_type(data));
3513 if (line->type == LINE_COMMIT &&
3514 (view == VIEW(REQ_VIEW_DIFF) ||
3515 view == VIEW(REQ_VIEW_LOG)))
3516 add_pager_refs(view, line);
3522 pager_request(struct view *view, enum request request, struct line *line)
3526 if (request != REQ_ENTER)
3529 if (line->type == LINE_COMMIT &&
3530 (view == VIEW(REQ_VIEW_LOG) ||
3531 view == VIEW(REQ_VIEW_PAGER))) {
3532 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3536 /* Always scroll the view even if it was split. That way
3537 * you can use Enter to scroll through the log view and
3538 * split open each commit diff. */
3539 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3541 /* FIXME: A minor workaround. Scrolling the view will call report("")
3542 * but if we are scrolling a non-current view this won't properly
3543 * update the view title. */
3545 update_view_title(view);
3551 pager_grep(struct view *view, struct line *line)
3554 char *text = line->data;
3559 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3566 pager_select(struct view *view, struct line *line)
3568 if (line->type == LINE_COMMIT) {
3569 char *text = (char *)line->data + STRING_SIZE("commit ");
3571 if (view != VIEW(REQ_VIEW_PAGER))
3572 string_copy_rev(view->ref, text);
3573 string_copy_rev(ref_commit, text);
3577 static struct view_ops pager_ops = {
3588 static const char *log_argv[SIZEOF_ARG] = {
3589 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3593 log_request(struct view *view, enum request request, struct line *line)
3598 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3601 return pager_request(view, request, line);
3605 static struct view_ops log_ops = {
3616 static const char *diff_argv[SIZEOF_ARG] = {
3617 "git", "show", "--pretty=fuller", "--no-color", "--root",
3618 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3621 static struct view_ops diff_ops = {
3637 help_open(struct view *view)
3639 char buf[SIZEOF_STR];
3643 if (view->lines > 0)
3646 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3648 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3651 if (req_info[i].request == REQ_NONE)
3654 if (!req_info[i].request) {
3655 add_line_text(view, "", LINE_DEFAULT);
3656 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3660 key = get_key(req_info[i].request);
3662 key = "(no key defined)";
3664 for (bufpos = 0; bufpos <= req_info[i].namelen; bufpos++) {
3665 buf[bufpos] = tolower(req_info[i].name[bufpos]);
3666 if (buf[bufpos] == '_')
3670 add_line_format(view, LINE_DEFAULT, " %-25s %-20s %s",
3671 key, buf, req_info[i].help);
3675 add_line_text(view, "", LINE_DEFAULT);
3676 add_line_text(view, "External commands:", LINE_DEFAULT);
3679 for (i = 0; i < run_requests; i++) {
3680 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3687 key = get_key_name(req->key);
3689 key = "(no key defined)";
3691 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3692 if (!string_format_from(buf, &bufpos, "%s%s",
3693 argc ? " " : "", req->argv[argc]))
3696 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3697 keymap_table[req->keymap].name, key, buf);
3703 static struct view_ops help_ops = {
3719 struct tree_stack_entry {
3720 struct tree_stack_entry *prev; /* Entry below this in the stack */
3721 unsigned long lineno; /* Line number to restore */
3722 char *name; /* Position of name in opt_path */
3725 /* The top of the path stack. */
3726 static struct tree_stack_entry *tree_stack = NULL;
3727 unsigned long tree_lineno = 0;
3730 pop_tree_stack_entry(void)
3732 struct tree_stack_entry *entry = tree_stack;
3734 tree_lineno = entry->lineno;
3736 tree_stack = entry->prev;
3741 push_tree_stack_entry(const char *name, unsigned long lineno)
3743 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3744 size_t pathlen = strlen(opt_path);
3749 entry->prev = tree_stack;
3750 entry->name = opt_path + pathlen;
3753 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3754 pop_tree_stack_entry();
3758 /* Move the current line to the first tree entry. */
3760 entry->lineno = lineno;
3763 /* Parse output from git-ls-tree(1):
3765 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3768 #define SIZEOF_TREE_ATTR \
3769 STRING_SIZE("100644 blob f931e1d229c3e185caad4449bf5b66ed72462657\t")
3771 #define SIZEOF_TREE_MODE \
3772 STRING_SIZE("100644 ")
3774 #define TREE_ID_OFFSET \
3775 STRING_SIZE("100644 blob ")
3778 char id[SIZEOF_REV];
3780 struct tm time; /* Date from the author ident. */
3781 char author[75]; /* Author of the commit. */
3786 tree_path(struct line *line)
3788 return ((struct tree_entry *) line->data)->name;
3793 tree_compare_entry(struct line *line1, struct line *line2)
3795 if (line1->type != line2->type)
3796 return line1->type == LINE_TREE_DIR ? -1 : 1;
3797 return strcmp(tree_path(line1), tree_path(line2));
3800 static struct line *
3801 tree_entry(struct view *view, enum line_type type, const char *path,
3802 const char *mode, const char *id)
3804 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3805 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3807 if (!entry || !line) {
3812 strncpy(entry->name, path, strlen(path));
3814 entry->mode = strtoul(mode, NULL, 8);
3816 string_copy_rev(entry->id, id);
3822 tree_read_date(struct view *view, char *text, bool *read_date)
3824 static char author_name[SIZEOF_STR];
3825 static struct tm author_time;
3827 if (!text && *read_date) {
3832 char *path = *opt_path ? opt_path : ".";
3833 /* Find next entry to process */
3834 const char *log_file[] = {
3835 "git", "log", "--no-color", "--pretty=raw",
3836 "--cc", "--raw", view->id, "--", path, NULL
3841 tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL);
3842 report("Tree is empty");
3846 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3847 report("Failed to load tree data");
3851 done_io(view->pipe);
3856 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3857 parse_author_line(text + STRING_SIZE("author "),
3858 author_name, sizeof(author_name), &author_time);
3860 } else if (*text == ':') {
3862 size_t annotated = 1;
3865 pos = strchr(text, '\t');
3869 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3870 text += strlen(opt_prefix);
3871 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3872 text += strlen(opt_path);
3873 pos = strchr(text, '/');
3877 for (i = 1; i < view->lines; i++) {
3878 struct line *line = &view->line[i];
3879 struct tree_entry *entry = line->data;
3881 annotated += !!*entry->author;
3882 if (*entry->author || strcmp(entry->name, text))
3885 string_copy(entry->author, author_name);
3886 memcpy(&entry->time, &author_time, sizeof(entry->time));
3891 if (annotated == view->lines)
3892 kill_io(view->pipe);
3898 tree_read(struct view *view, char *text)
3900 static bool read_date = FALSE;
3901 struct tree_entry *data;
3902 struct line *entry, *line;
3903 enum line_type type;
3904 size_t textlen = text ? strlen(text) : 0;
3905 char *path = text + SIZEOF_TREE_ATTR;
3907 if (read_date || !text)
3908 return tree_read_date(view, text, &read_date);
3910 if (textlen <= SIZEOF_TREE_ATTR)
3912 if (view->lines == 0 &&
3913 !tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL))
3916 /* Strip the path part ... */
3918 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3919 size_t striplen = strlen(opt_path);
3921 if (pathlen > striplen)
3922 memmove(path, path + striplen,
3923 pathlen - striplen + 1);
3925 /* Insert "link" to parent directory. */
3926 if (view->lines == 1 &&
3927 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3931 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
3932 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3937 /* Skip "Directory ..." and ".." line. */
3938 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3939 if (tree_compare_entry(line, entry) <= 0)
3942 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3946 for (; line <= entry; line++)
3947 line->dirty = line->cleareol = 1;
3951 if (tree_lineno > view->lineno) {
3952 view->lineno = tree_lineno;
3960 tree_draw(struct view *view, struct line *line, unsigned int lineno)
3962 struct tree_entry *entry = line->data;
3964 if (line->type == LINE_TREE_HEAD) {
3965 if (draw_text(view, line->type, "Directory path /", TRUE))
3968 if (draw_mode(view, entry->mode))
3971 if (opt_author && draw_author(view, entry->author))
3974 if (opt_date && draw_date(view, *entry->author ? &entry->time : NULL))
3977 if (draw_text(view, line->type, entry->name, TRUE))
3985 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
3986 int fd = mkstemp(file);
3989 report("Failed to create temporary file");
3990 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
3991 report("Failed to save blob data to file");
3993 open_editor(FALSE, file);
3999 tree_request(struct view *view, enum request request, struct line *line)
4001 enum open_flags flags;
4004 case REQ_VIEW_BLAME:
4005 if (line->type != LINE_TREE_FILE) {
4006 report("Blame only supported for files");
4010 string_copy(opt_ref, view->vid);
4014 if (line->type != LINE_TREE_FILE) {
4015 report("Edit only supported for files");
4016 } else if (!is_head_commit(view->vid)) {
4019 open_editor(TRUE, opt_file);
4025 /* quit view if at top of tree */
4026 return REQ_VIEW_CLOSE;
4029 line = &view->line[1];
4039 /* Cleanup the stack if the tree view is at a different tree. */
4040 while (!*opt_path && tree_stack)
4041 pop_tree_stack_entry();
4043 switch (line->type) {
4045 /* Depending on whether it is a subdirectory or parent link
4046 * mangle the path buffer. */
4047 if (line == &view->line[1] && *opt_path) {
4048 pop_tree_stack_entry();
4051 const char *basename = tree_path(line);
4053 push_tree_stack_entry(basename, view->lineno);
4056 /* Trees and subtrees share the same ID, so they are not not
4057 * unique like blobs. */
4058 flags = OPEN_RELOAD;
4059 request = REQ_VIEW_TREE;
4062 case LINE_TREE_FILE:
4063 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4064 request = REQ_VIEW_BLOB;
4071 open_view(view, request, flags);
4072 if (request == REQ_VIEW_TREE)
4073 view->lineno = tree_lineno;
4079 tree_select(struct view *view, struct line *line)
4081 struct tree_entry *entry = line->data;
4083 if (line->type == LINE_TREE_FILE) {
4084 string_copy_rev(ref_blob, entry->id);
4085 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4087 } else if (line->type != LINE_TREE_DIR) {
4091 string_copy_rev(view->ref, entry->id);
4094 static const char *tree_argv[SIZEOF_ARG] = {
4095 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4098 static struct view_ops tree_ops = {
4110 blob_read(struct view *view, char *line)
4114 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4118 blob_request(struct view *view, enum request request, struct line *line)
4125 return pager_request(view, request, line);
4129 static const char *blob_argv[SIZEOF_ARG] = {
4130 "git", "cat-file", "blob", "%(blob)", NULL
4133 static struct view_ops blob_ops = {
4147 * Loading the blame view is a two phase job:
4149 * 1. File content is read either using opt_file from the
4150 * filesystem or using git-cat-file.
4151 * 2. Then blame information is incrementally added by
4152 * reading output from git-blame.
4155 static const char *blame_head_argv[] = {
4156 "git", "blame", "--incremental", "--", "%(file)", NULL
4159 static const char *blame_ref_argv[] = {
4160 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4163 static const char *blame_cat_file_argv[] = {
4164 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4167 struct blame_commit {
4168 char id[SIZEOF_REV]; /* SHA1 ID. */
4169 char title[128]; /* First line of the commit message. */
4170 char author[75]; /* Author of the commit. */
4171 struct tm time; /* Date from the author ident. */
4172 char filename[128]; /* Name of file. */
4173 bool has_previous; /* Was a "previous" line detected. */
4177 struct blame_commit *commit;
4182 blame_open(struct view *view)
4184 if (*opt_ref || !io_open(&view->io, opt_file)) {
4185 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4189 setup_update(view, opt_file);
4190 string_format(view->ref, "%s ...", opt_file);
4195 static struct blame_commit *
4196 get_blame_commit(struct view *view, const char *id)
4200 for (i = 0; i < view->lines; i++) {
4201 struct blame *blame = view->line[i].data;
4206 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4207 return blame->commit;
4211 struct blame_commit *commit = calloc(1, sizeof(*commit));
4214 string_ncopy(commit->id, id, SIZEOF_REV);
4220 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4222 const char *pos = *posref;
4225 pos = strchr(pos + 1, ' ');
4226 if (!pos || !isdigit(pos[1]))
4228 *number = atoi(pos + 1);
4229 if (*number < min || *number > max)
4236 static struct blame_commit *
4237 parse_blame_commit(struct view *view, const char *text, int *blamed)
4239 struct blame_commit *commit;
4240 struct blame *blame;
4241 const char *pos = text + SIZEOF_REV - 1;
4245 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
4248 if (!parse_number(&pos, &lineno, 1, view->lines) ||
4249 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4252 commit = get_blame_commit(view, text);
4258 struct line *line = &view->line[lineno + group - 1];
4261 blame->commit = commit;
4269 blame_read_file(struct view *view, const char *line, bool *read_file)
4272 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4275 if (view->lines == 0 && !view->parent)
4276 die("No blame exist for %s", view->vid);
4278 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4279 report("Failed to load blame data");
4283 done_io(view->pipe);
4289 size_t linelen = string_expand_length(line, opt_tab_size);
4290 struct blame *blame = malloc(sizeof(*blame) + linelen);
4295 blame->commit = NULL;
4296 string_expand(blame->text, linelen + 1, line, opt_tab_size);
4297 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4302 match_blame_header(const char *name, char **line)
4304 size_t namelen = strlen(name);
4305 bool matched = !strncmp(name, *line, namelen);
4314 blame_read(struct view *view, char *line)
4316 static struct blame_commit *commit = NULL;
4317 static int blamed = 0;
4318 static time_t author_time;
4319 static bool read_file = TRUE;
4322 return blame_read_file(view, line, &read_file);
4329 string_format(view->ref, "%s", view->vid);
4330 if (view_is_displayed(view)) {
4331 update_view_title(view);
4332 redraw_view_from(view, 0);
4338 commit = parse_blame_commit(view, line, &blamed);
4339 string_format(view->ref, "%s %2d%%", view->vid,
4340 view->lines ? blamed * 100 / view->lines : 0);
4342 } else if (match_blame_header("author ", &line)) {
4343 string_ncopy(commit->author, line, strlen(line));
4345 } else if (match_blame_header("author-time ", &line)) {
4346 author_time = (time_t) atol(line);
4348 } else if (match_blame_header("author-tz ", &line)) {
4351 tz = ('0' - line[1]) * 60 * 60 * 10;
4352 tz += ('0' - line[2]) * 60 * 60;
4353 tz += ('0' - line[3]) * 60;
4354 tz += ('0' - line[4]) * 60;
4360 gmtime_r(&author_time, &commit->time);
4362 } else if (match_blame_header("summary ", &line)) {
4363 string_ncopy(commit->title, line, strlen(line));
4365 } else if (match_blame_header("previous ", &line)) {
4366 commit->has_previous = TRUE;
4368 } else if (match_blame_header("filename ", &line)) {
4369 string_ncopy(commit->filename, line, strlen(line));
4377 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4379 struct blame *blame = line->data;
4380 struct tm *time = NULL;
4381 const char *id = NULL, *author = NULL;
4383 if (blame->commit && *blame->commit->filename) {
4384 id = blame->commit->id;
4385 author = blame->commit->author;
4386 time = &blame->commit->time;
4389 if (opt_date && draw_date(view, time))
4392 if (opt_author && draw_author(view, author))
4395 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4398 if (draw_lineno(view, lineno))
4401 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4406 check_blame_commit(struct blame *blame)
4409 report("Commit data not loaded yet");
4410 else if (!strcmp(blame->commit->id, NULL_ID))
4411 report("No commit exist for the selected line");
4418 blame_request(struct view *view, enum request request, struct line *line)
4420 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4421 struct blame *blame = line->data;
4424 case REQ_VIEW_BLAME:
4425 if (check_blame_commit(blame)) {
4426 string_copy(opt_ref, blame->commit->id);
4427 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4432 if (check_blame_commit(blame) &&
4433 select_commit_parent(blame->commit->id, opt_ref))
4434 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4438 if (!blame->commit) {
4439 report("No commit loaded yet");
4443 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4444 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4447 if (!strcmp(blame->commit->id, NULL_ID)) {
4448 struct view *diff = VIEW(REQ_VIEW_DIFF);
4449 const char *diff_index_argv[] = {
4450 "git", "diff-index", "--root", "--patch-with-stat",
4451 "-C", "-M", "HEAD", "--", view->vid, NULL
4454 if (!blame->commit->has_previous) {
4455 diff_index_argv[1] = "diff";
4456 diff_index_argv[2] = "--no-color";
4457 diff_index_argv[6] = "--";
4458 diff_index_argv[7] = "/dev/null";
4461 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4462 report("Failed to allocate diff command");
4465 flags |= OPEN_PREPARED;
4468 open_view(view, REQ_VIEW_DIFF, flags);
4469 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4470 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4481 blame_grep(struct view *view, struct line *line)
4483 struct blame *blame = line->data;
4484 struct blame_commit *commit = blame->commit;
4487 #define MATCH(text, on) \
4488 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4491 char buf[DATE_COLS + 1];
4493 if (MATCH(commit->title, 1) ||
4494 MATCH(commit->author, opt_author) ||
4495 MATCH(commit->id, opt_date))
4498 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4503 return MATCH(blame->text, 1);
4509 blame_select(struct view *view, struct line *line)
4511 struct blame *blame = line->data;
4512 struct blame_commit *commit = blame->commit;
4517 if (!strcmp(commit->id, NULL_ID))
4518 string_ncopy(ref_commit, "HEAD", 4);
4520 string_copy_rev(ref_commit, commit->id);
4523 static struct view_ops blame_ops = {
4542 char rev[SIZEOF_REV];
4543 char name[SIZEOF_STR];
4547 char rev[SIZEOF_REV];
4548 char name[SIZEOF_STR];
4552 static char status_onbranch[SIZEOF_STR];
4553 static struct status stage_status;
4554 static enum line_type stage_line_type;
4555 static size_t stage_chunks;
4556 static int *stage_chunk;
4558 /* This should work even for the "On branch" line. */
4560 status_has_none(struct view *view, struct line *line)
4562 return line < view->line + view->lines && !line[1].data;
4565 /* Get fields from the diff line:
4566 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4569 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4571 const char *old_mode = buf + 1;
4572 const char *new_mode = buf + 8;
4573 const char *old_rev = buf + 15;
4574 const char *new_rev = buf + 56;
4575 const char *status = buf + 97;
4578 old_mode[-1] != ':' ||
4579 new_mode[-1] != ' ' ||
4580 old_rev[-1] != ' ' ||
4581 new_rev[-1] != ' ' ||
4585 file->status = *status;
4587 string_copy_rev(file->old.rev, old_rev);
4588 string_copy_rev(file->new.rev, new_rev);
4590 file->old.mode = strtoul(old_mode, NULL, 8);
4591 file->new.mode = strtoul(new_mode, NULL, 8);
4593 file->old.name[0] = file->new.name[0] = 0;
4599 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4601 struct status *unmerged = NULL;
4605 if (!run_io(&io, argv, NULL, IO_RD))
4608 add_line_data(view, NULL, type);
4610 while ((buf = io_get(&io, 0, TRUE))) {
4611 struct status *file = unmerged;
4614 file = calloc(1, sizeof(*file));
4615 if (!file || !add_line_data(view, file, type))
4619 /* Parse diff info part. */
4621 file->status = status;
4623 string_copy(file->old.rev, NULL_ID);
4625 } else if (!file->status || file == unmerged) {
4626 if (!status_get_diff(file, buf, strlen(buf)))
4629 buf = io_get(&io, 0, TRUE);
4633 /* Collapse all modified entries that follow an
4634 * associated unmerged entry. */
4635 if (unmerged == file) {
4636 unmerged->status = 'U';
4638 } else if (file->status == 'U') {
4643 /* Grab the old name for rename/copy. */
4644 if (!*file->old.name &&
4645 (file->status == 'R' || file->status == 'C')) {
4646 string_ncopy(file->old.name, buf, strlen(buf));
4648 buf = io_get(&io, 0, TRUE);
4653 /* git-ls-files just delivers a NUL separated list of
4654 * file names similar to the second half of the
4655 * git-diff-* output. */
4656 string_ncopy(file->new.name, buf, strlen(buf));
4657 if (!*file->old.name)
4658 string_copy(file->old.name, file->new.name);
4662 if (io_error(&io)) {
4668 if (!view->line[view->lines - 1].data)
4669 add_line_data(view, NULL, LINE_STAT_NONE);
4675 /* Don't show unmerged entries in the staged section. */
4676 static const char *status_diff_index_argv[] = {
4677 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4678 "--cached", "-M", "HEAD", NULL
4681 static const char *status_diff_files_argv[] = {
4682 "git", "diff-files", "-z", NULL
4685 static const char *status_list_other_argv[] = {
4686 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4689 static const char *status_list_no_head_argv[] = {
4690 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4693 static const char *update_index_argv[] = {
4694 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4697 /* Restore the previous line number to stay in the context or select a
4698 * line with something that can be updated. */
4700 status_restore(struct view *view)
4702 if (view->p_lineno >= view->lines)
4703 view->p_lineno = view->lines - 1;
4704 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4706 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4709 /* If the above fails, always skip the "On branch" line. */
4710 if (view->p_lineno < view->lines)
4711 view->lineno = view->p_lineno;
4715 if (view->lineno < view->offset)
4716 view->offset = view->lineno;
4717 else if (view->offset + view->height <= view->lineno)
4718 view->offset = view->lineno - view->height + 1;
4720 view->p_restore = FALSE;
4723 /* First parse staged info using git-diff-index(1), then parse unstaged
4724 * info using git-diff-files(1), and finally untracked files using
4725 * git-ls-files(1). */
4727 status_open(struct view *view)
4731 add_line_data(view, NULL, LINE_STAT_HEAD);
4732 if (is_initial_commit())
4733 string_copy(status_onbranch, "Initial commit");
4734 else if (!*opt_head)
4735 string_copy(status_onbranch, "Not currently on any branch");
4736 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4739 run_io_bg(update_index_argv);
4741 if (is_initial_commit()) {
4742 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4744 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4748 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4749 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4752 /* Restore the exact position or use the specialized restore
4754 if (!view->p_restore)
4755 status_restore(view);
4760 status_draw(struct view *view, struct line *line, unsigned int lineno)
4762 struct status *status = line->data;
4763 enum line_type type;
4767 switch (line->type) {
4768 case LINE_STAT_STAGED:
4769 type = LINE_STAT_SECTION;
4770 text = "Changes to be committed:";
4773 case LINE_STAT_UNSTAGED:
4774 type = LINE_STAT_SECTION;
4775 text = "Changed but not updated:";
4778 case LINE_STAT_UNTRACKED:
4779 type = LINE_STAT_SECTION;
4780 text = "Untracked files:";
4783 case LINE_STAT_NONE:
4784 type = LINE_DEFAULT;
4785 text = " (no files)";
4788 case LINE_STAT_HEAD:
4789 type = LINE_STAT_HEAD;
4790 text = status_onbranch;
4797 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4799 buf[0] = status->status;
4800 if (draw_text(view, line->type, buf, TRUE))
4802 type = LINE_DEFAULT;
4803 text = status->new.name;
4806 draw_text(view, type, text, TRUE);
4811 status_enter(struct view *view, struct line *line)
4813 struct status *status = line->data;
4814 const char *oldpath = status ? status->old.name : NULL;
4815 /* Diffs for unmerged entries are empty when passing the new
4816 * path, so leave it empty. */
4817 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4819 enum open_flags split;
4820 struct view *stage = VIEW(REQ_VIEW_STAGE);
4822 if (line->type == LINE_STAT_NONE ||
4823 (!status && line[1].type == LINE_STAT_NONE)) {
4824 report("No file to diff");
4828 switch (line->type) {
4829 case LINE_STAT_STAGED:
4830 if (is_initial_commit()) {
4831 const char *no_head_diff_argv[] = {
4832 "git", "diff", "--no-color", "--patch-with-stat",
4833 "--", "/dev/null", newpath, NULL
4836 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4839 const char *index_show_argv[] = {
4840 "git", "diff-index", "--root", "--patch-with-stat",
4841 "-C", "-M", "--cached", "HEAD", "--",
4842 oldpath, newpath, NULL
4845 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4850 info = "Staged changes to %s";
4852 info = "Staged changes";
4855 case LINE_STAT_UNSTAGED:
4857 const char *files_show_argv[] = {
4858 "git", "diff-files", "--root", "--patch-with-stat",
4859 "-C", "-M", "--", oldpath, newpath, NULL
4862 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4865 info = "Unstaged changes to %s";
4867 info = "Unstaged changes";
4870 case LINE_STAT_UNTRACKED:
4872 report("No file to show");
4876 if (!suffixcmp(status->new.name, -1, "/")) {
4877 report("Cannot display a directory");
4881 if (!prepare_update_file(stage, newpath))
4883 info = "Untracked file %s";
4886 case LINE_STAT_HEAD:
4890 die("line type %d not handled in switch", line->type);
4893 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4894 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
4895 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4897 stage_status = *status;
4899 memset(&stage_status, 0, sizeof(stage_status));
4902 stage_line_type = line->type;
4904 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4911 status_exists(struct status *status, enum line_type type)
4913 struct view *view = VIEW(REQ_VIEW_STATUS);
4914 unsigned long lineno;
4916 for (lineno = 0; lineno < view->lines; lineno++) {
4917 struct line *line = &view->line[lineno];
4918 struct status *pos = line->data;
4920 if (line->type != type)
4922 if (!pos && (!status || !status->status) && line[1].data) {
4923 select_view_line(view, lineno);
4926 if (pos && !strcmp(status->new.name, pos->new.name)) {
4927 select_view_line(view, lineno);
4937 status_update_prepare(struct io *io, enum line_type type)
4939 const char *staged_argv[] = {
4940 "git", "update-index", "-z", "--index-info", NULL
4942 const char *others_argv[] = {
4943 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4947 case LINE_STAT_STAGED:
4948 return run_io(io, staged_argv, opt_cdup, IO_WR);
4950 case LINE_STAT_UNSTAGED:
4951 return run_io(io, others_argv, opt_cdup, IO_WR);
4953 case LINE_STAT_UNTRACKED:
4954 return run_io(io, others_argv, NULL, IO_WR);
4957 die("line type %d not handled in switch", type);
4963 status_update_write(struct io *io, struct status *status, enum line_type type)
4965 char buf[SIZEOF_STR];
4969 case LINE_STAT_STAGED:
4970 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4973 status->old.name, 0))
4977 case LINE_STAT_UNSTAGED:
4978 case LINE_STAT_UNTRACKED:
4979 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4984 die("line type %d not handled in switch", type);
4987 return io_write(io, buf, bufsize);
4991 status_update_file(struct status *status, enum line_type type)
4996 if (!status_update_prepare(&io, type))
4999 result = status_update_write(&io, status, type);
5005 status_update_files(struct view *view, struct line *line)
5009 struct line *pos = view->line + view->lines;
5013 if (!status_update_prepare(&io, line->type))
5016 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5019 for (file = 0, done = 0; result && file < files; line++, file++) {
5020 int almost_done = file * 100 / files;
5022 if (almost_done > done) {
5024 string_format(view->ref, "updating file %u of %u (%d%% done)",
5026 update_view_title(view);
5028 result = status_update_write(&io, line->data, line->type);
5036 status_update(struct view *view)
5038 struct line *line = &view->line[view->lineno];
5040 assert(view->lines);
5043 /* This should work even for the "On branch" line. */
5044 if (line < view->line + view->lines && !line[1].data) {
5045 report("Nothing to update");
5049 if (!status_update_files(view, line + 1)) {
5050 report("Failed to update file status");
5054 } else if (!status_update_file(line->data, line->type)) {
5055 report("Failed to update file status");
5063 status_revert(struct status *status, enum line_type type, bool has_none)
5065 if (!status || type != LINE_STAT_UNSTAGED) {
5066 if (type == LINE_STAT_STAGED) {
5067 report("Cannot revert changes to staged files");
5068 } else if (type == LINE_STAT_UNTRACKED) {
5069 report("Cannot revert changes to untracked files");
5070 } else if (has_none) {
5071 report("Nothing to revert");
5073 report("Cannot revert changes to multiple files");
5078 char mode[10] = "100644";
5079 const char *reset_argv[] = {
5080 "git", "update-index", "--cacheinfo", mode,
5081 status->old.rev, status->old.name, NULL
5083 const char *checkout_argv[] = {
5084 "git", "checkout", "--", status->old.name, NULL
5087 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5089 string_format(mode, "%o", status->old.mode);
5090 return (status->status != 'U' || run_io_fg(reset_argv, opt_cdup)) &&
5091 run_io_fg(checkout_argv, opt_cdup);
5096 status_request(struct view *view, enum request request, struct line *line)
5098 struct status *status = line->data;
5101 case REQ_STATUS_UPDATE:
5102 if (!status_update(view))
5106 case REQ_STATUS_REVERT:
5107 if (!status_revert(status, line->type, status_has_none(view, line)))
5111 case REQ_STATUS_MERGE:
5112 if (!status || status->status != 'U') {
5113 report("Merging only possible for files with unmerged status ('U').");
5116 open_mergetool(status->new.name);
5122 if (status->status == 'D') {
5123 report("File has been deleted.");
5127 open_editor(status->status != '?', status->new.name);
5130 case REQ_VIEW_BLAME:
5132 string_copy(opt_file, status->new.name);
5138 /* After returning the status view has been split to
5139 * show the stage view. No further reloading is
5141 status_enter(view, line);
5145 /* Simply reload the view. */
5152 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5158 status_select(struct view *view, struct line *line)
5160 struct status *status = line->data;
5161 char file[SIZEOF_STR] = "all files";
5165 if (status && !string_format(file, "'%s'", status->new.name))
5168 if (!status && line[1].type == LINE_STAT_NONE)
5171 switch (line->type) {
5172 case LINE_STAT_STAGED:
5173 text = "Press %s to unstage %s for commit";
5176 case LINE_STAT_UNSTAGED:
5177 text = "Press %s to stage %s for commit";
5180 case LINE_STAT_UNTRACKED:
5181 text = "Press %s to stage %s for addition";
5184 case LINE_STAT_HEAD:
5185 case LINE_STAT_NONE:
5186 text = "Nothing to update";
5190 die("line type %d not handled in switch", line->type);
5193 if (status && status->status == 'U') {
5194 text = "Press %s to resolve conflict in %s";
5195 key = get_key(REQ_STATUS_MERGE);
5198 key = get_key(REQ_STATUS_UPDATE);
5201 string_format(view->ref, text, key, file);
5205 status_grep(struct view *view, struct line *line)
5207 struct status *status = line->data;
5208 enum { S_STATUS, S_NAME, S_END } state;
5215 for (state = S_STATUS; state < S_END; state++) {
5219 case S_NAME: text = status->new.name; break;
5221 buf[0] = status->status;
5229 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5236 static struct view_ops status_ops = {
5249 stage_diff_write(struct io *io, struct line *line, struct line *end)
5251 while (line < end) {
5252 if (!io_write(io, line->data, strlen(line->data)) ||
5253 !io_write(io, "\n", 1))
5256 if (line->type == LINE_DIFF_CHUNK ||
5257 line->type == LINE_DIFF_HEADER)
5264 static struct line *
5265 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5267 for (; view->line < line; line--)
5268 if (line->type == type)
5275 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5277 const char *apply_argv[SIZEOF_ARG] = {
5278 "git", "apply", "--whitespace=nowarn", NULL
5280 struct line *diff_hdr;
5284 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5289 apply_argv[argc++] = "--cached";
5290 if (revert || stage_line_type == LINE_STAT_STAGED)
5291 apply_argv[argc++] = "-R";
5292 apply_argv[argc++] = "-";
5293 apply_argv[argc++] = NULL;
5294 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5297 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5298 !stage_diff_write(&io, chunk, view->line + view->lines))
5302 run_io_bg(update_index_argv);
5304 return chunk ? TRUE : FALSE;
5308 stage_update(struct view *view, struct line *line)
5310 struct line *chunk = NULL;
5312 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5313 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5316 if (!stage_apply_chunk(view, chunk, FALSE)) {
5317 report("Failed to apply chunk");
5321 } else if (!stage_status.status) {
5322 view = VIEW(REQ_VIEW_STATUS);
5324 for (line = view->line; line < view->line + view->lines; line++)
5325 if (line->type == stage_line_type)
5328 if (!status_update_files(view, line + 1)) {
5329 report("Failed to update files");
5333 } else if (!status_update_file(&stage_status, stage_line_type)) {
5334 report("Failed to update file");
5342 stage_revert(struct view *view, struct line *line)
5344 struct line *chunk = NULL;
5346 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5347 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5350 if (!prompt_yesno("Are you sure you want to revert changes?"))
5353 if (!stage_apply_chunk(view, chunk, TRUE)) {
5354 report("Failed to revert chunk");
5360 return status_revert(stage_status.status ? &stage_status : NULL,
5361 stage_line_type, FALSE);
5367 stage_next(struct view *view, struct line *line)
5371 if (!stage_chunks) {
5372 static size_t alloc = 0;
5375 for (line = view->line; line < view->line + view->lines; line++) {
5376 if (line->type != LINE_DIFF_CHUNK)
5379 tmp = realloc_items(stage_chunk, &alloc,
5380 stage_chunks, sizeof(*tmp));
5382 report("Allocation failure");
5387 stage_chunk[stage_chunks++] = line - view->line;
5391 for (i = 0; i < stage_chunks; i++) {
5392 if (stage_chunk[i] > view->lineno) {
5393 do_scroll_view(view, stage_chunk[i] - view->lineno);
5394 report("Chunk %d of %d", i + 1, stage_chunks);
5399 report("No next chunk found");
5403 stage_request(struct view *view, enum request request, struct line *line)
5406 case REQ_STATUS_UPDATE:
5407 if (!stage_update(view, line))
5411 case REQ_STATUS_REVERT:
5412 if (!stage_revert(view, line))
5416 case REQ_STAGE_NEXT:
5417 if (stage_line_type == LINE_STAT_UNTRACKED) {
5418 report("File is untracked; press %s to add",
5419 get_key(REQ_STATUS_UPDATE));
5422 stage_next(view, line);
5426 if (!stage_status.new.name[0])
5428 if (stage_status.status == 'D') {
5429 report("File has been deleted.");
5433 open_editor(stage_status.status != '?', stage_status.new.name);
5437 /* Reload everything ... */
5440 case REQ_VIEW_BLAME:
5441 if (stage_status.new.name[0]) {
5442 string_copy(opt_file, stage_status.new.name);
5448 return pager_request(view, request, line);
5454 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5455 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
5457 /* Check whether the staged entry still exists, and close the
5458 * stage view if it doesn't. */
5459 if (!status_exists(&stage_status, stage_line_type)) {
5460 status_restore(VIEW(REQ_VIEW_STATUS));
5461 return REQ_VIEW_CLOSE;
5464 if (stage_line_type == LINE_STAT_UNTRACKED) {
5465 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5466 report("Cannot display a directory");
5470 if (!prepare_update_file(view, stage_status.new.name)) {
5471 report("Failed to open file: %s", strerror(errno));
5475 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5480 static struct view_ops stage_ops = {
5497 char id[SIZEOF_REV]; /* SHA1 ID. */
5498 char title[128]; /* First line of the commit message. */
5499 char author[75]; /* Author of the commit. */
5500 struct tm time; /* Date from the author ident. */
5501 struct ref **refs; /* Repository references. */
5502 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5503 size_t graph_size; /* The width of the graph array. */
5504 bool has_parents; /* Rewritten --parents seen. */
5507 /* Size of rev graph with no "padding" columns */
5508 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5511 struct rev_graph *prev, *next, *parents;
5512 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5514 struct commit *commit;
5516 unsigned int boundary:1;
5519 /* Parents of the commit being visualized. */
5520 static struct rev_graph graph_parents[4];
5522 /* The current stack of revisions on the graph. */
5523 static struct rev_graph graph_stacks[4] = {
5524 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5525 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5526 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5527 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5531 graph_parent_is_merge(struct rev_graph *graph)
5533 return graph->parents->size > 1;
5537 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5539 struct commit *commit = graph->commit;
5541 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5542 commit->graph[commit->graph_size++] = symbol;
5546 clear_rev_graph(struct rev_graph *graph)
5548 graph->boundary = 0;
5549 graph->size = graph->pos = 0;
5550 graph->commit = NULL;
5551 memset(graph->parents, 0, sizeof(*graph->parents));
5555 done_rev_graph(struct rev_graph *graph)
5557 if (graph_parent_is_merge(graph) &&
5558 graph->pos < graph->size - 1 &&
5559 graph->next->size == graph->size + graph->parents->size - 1) {
5560 size_t i = graph->pos + graph->parents->size - 1;
5562 graph->commit->graph_size = i * 2;
5563 while (i < graph->next->size - 1) {
5564 append_to_rev_graph(graph, ' ');
5565 append_to_rev_graph(graph, '\\');
5570 clear_rev_graph(graph);
5574 push_rev_graph(struct rev_graph *graph, const char *parent)
5578 /* "Collapse" duplicate parents lines.
5580 * FIXME: This needs to also update update the drawn graph but
5581 * for now it just serves as a method for pruning graph lines. */
5582 for (i = 0; i < graph->size; i++)
5583 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5586 if (graph->size < SIZEOF_REVITEMS) {
5587 string_copy_rev(graph->rev[graph->size++], parent);
5592 get_rev_graph_symbol(struct rev_graph *graph)
5596 if (graph->boundary)
5597 symbol = REVGRAPH_BOUND;
5598 else if (graph->parents->size == 0)
5599 symbol = REVGRAPH_INIT;
5600 else if (graph_parent_is_merge(graph))
5601 symbol = REVGRAPH_MERGE;
5602 else if (graph->pos >= graph->size)
5603 symbol = REVGRAPH_BRANCH;
5605 symbol = REVGRAPH_COMMIT;
5611 draw_rev_graph(struct rev_graph *graph)
5614 chtype separator, line;
5616 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5617 static struct rev_filler fillers[] = {
5623 chtype symbol = get_rev_graph_symbol(graph);
5624 struct rev_filler *filler;
5627 if (opt_line_graphics)
5628 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5630 filler = &fillers[DEFAULT];
5632 for (i = 0; i < graph->pos; i++) {
5633 append_to_rev_graph(graph, filler->line);
5634 if (graph_parent_is_merge(graph->prev) &&
5635 graph->prev->pos == i)
5636 filler = &fillers[RSHARP];
5638 append_to_rev_graph(graph, filler->separator);
5641 /* Place the symbol for this revision. */
5642 append_to_rev_graph(graph, symbol);
5644 if (graph->prev->size > graph->size)
5645 filler = &fillers[RDIAG];
5647 filler = &fillers[DEFAULT];
5651 for (; i < graph->size; i++) {
5652 append_to_rev_graph(graph, filler->separator);
5653 append_to_rev_graph(graph, filler->line);
5654 if (graph_parent_is_merge(graph->prev) &&
5655 i < graph->prev->pos + graph->parents->size)
5656 filler = &fillers[RSHARP];
5657 if (graph->prev->size > graph->size)
5658 filler = &fillers[LDIAG];
5661 if (graph->prev->size > graph->size) {
5662 append_to_rev_graph(graph, filler->separator);
5663 if (filler->line != ' ')
5664 append_to_rev_graph(graph, filler->line);
5668 /* Prepare the next rev graph */
5670 prepare_rev_graph(struct rev_graph *graph)
5674 /* First, traverse all lines of revisions up to the active one. */
5675 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5676 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5679 push_rev_graph(graph->next, graph->rev[graph->pos]);
5682 /* Interleave the new revision parent(s). */
5683 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5684 push_rev_graph(graph->next, graph->parents->rev[i]);
5686 /* Lastly, put any remaining revisions. */
5687 for (i = graph->pos + 1; i < graph->size; i++)
5688 push_rev_graph(graph->next, graph->rev[i]);
5692 update_rev_graph(struct view *view, struct rev_graph *graph)
5694 /* If this is the finalizing update ... */
5696 prepare_rev_graph(graph);
5698 /* Graph visualization needs a one rev look-ahead,
5699 * so the first update doesn't visualize anything. */
5700 if (!graph->prev->commit)
5703 if (view->lines > 2)
5704 view->line[view->lines - 3].dirty = 1;
5705 if (view->lines > 1)
5706 view->line[view->lines - 2].dirty = 1;
5707 draw_rev_graph(graph->prev);
5708 done_rev_graph(graph->prev->prev);
5716 static const char *main_argv[SIZEOF_ARG] = {
5717 "git", "log", "--no-color", "--pretty=raw", "--parents",
5718 "--topo-order", "%(head)", NULL
5722 main_draw(struct view *view, struct line *line, unsigned int lineno)
5724 struct commit *commit = line->data;
5726 if (!*commit->author)
5729 if (opt_date && draw_date(view, &commit->time))
5732 if (opt_author && draw_author(view, commit->author))
5735 if (opt_rev_graph && commit->graph_size &&
5736 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5739 if (opt_show_refs && commit->refs) {
5743 enum line_type type;
5745 if (commit->refs[i]->head)
5746 type = LINE_MAIN_HEAD;
5747 else if (commit->refs[i]->ltag)
5748 type = LINE_MAIN_LOCAL_TAG;
5749 else if (commit->refs[i]->tag)
5750 type = LINE_MAIN_TAG;
5751 else if (commit->refs[i]->tracked)
5752 type = LINE_MAIN_TRACKED;
5753 else if (commit->refs[i]->remote)
5754 type = LINE_MAIN_REMOTE;
5756 type = LINE_MAIN_REF;
5758 if (draw_text(view, type, "[", TRUE) ||
5759 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5760 draw_text(view, type, "]", TRUE))
5763 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5765 } while (commit->refs[i++]->next);
5768 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5772 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5774 main_read(struct view *view, char *line)
5776 static struct rev_graph *graph = graph_stacks;
5777 enum line_type type;
5778 struct commit *commit;
5783 if (!view->lines && !view->parent)
5784 die("No revisions match the given arguments.");
5785 if (view->lines > 0) {
5786 commit = view->line[view->lines - 1].data;
5787 view->line[view->lines - 1].dirty = 1;
5788 if (!*commit->author) {
5791 graph->commit = NULL;
5794 update_rev_graph(view, graph);
5796 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5797 clear_rev_graph(&graph_stacks[i]);
5801 type = get_line_type(line);
5802 if (type == LINE_COMMIT) {
5803 commit = calloc(1, sizeof(struct commit));
5807 line += STRING_SIZE("commit ");
5809 graph->boundary = 1;
5813 string_copy_rev(commit->id, line);
5814 commit->refs = get_refs(commit->id);
5815 graph->commit = commit;
5816 add_line_data(view, commit, LINE_MAIN_COMMIT);
5818 while ((line = strchr(line, ' '))) {
5820 push_rev_graph(graph->parents, line);
5821 commit->has_parents = TRUE;
5828 commit = view->line[view->lines - 1].data;
5832 if (commit->has_parents)
5834 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5838 parse_author_line(line + STRING_SIZE("author "),
5839 commit->author, sizeof(commit->author),
5841 update_rev_graph(view, graph);
5842 graph = graph->next;
5846 /* Fill in the commit title if it has not already been set. */
5847 if (commit->title[0])
5850 /* Require titles to start with a non-space character at the
5851 * offset used by git log. */
5852 if (strncmp(line, " ", 4))
5855 /* Well, if the title starts with a whitespace character,
5856 * try to be forgiving. Otherwise we end up with no title. */
5857 while (isspace(*line))
5861 /* FIXME: More graceful handling of titles; append "..." to
5862 * shortened titles, etc. */
5864 string_expand(commit->title, sizeof(commit->title), line, 1);
5865 view->line[view->lines - 1].dirty = 1;
5872 main_request(struct view *view, enum request request, struct line *line)
5874 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5878 open_view(view, REQ_VIEW_DIFF, flags);
5882 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5892 grep_refs(struct ref **refs, regex_t *regex)
5900 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5902 } while (refs[i++]->next);
5908 main_grep(struct view *view, struct line *line)
5910 struct commit *commit = line->data;
5911 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5912 char buf[DATE_COLS + 1];
5915 for (state = S_TITLE; state < S_END; state++) {
5919 case S_TITLE: text = commit->title; break;
5923 text = commit->author;
5928 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5935 if (grep_refs(commit->refs, view->regex) == TRUE)
5942 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5950 main_select(struct view *view, struct line *line)
5952 struct commit *commit = line->data;
5954 string_copy_rev(view->ref, commit->id);
5955 string_copy_rev(ref_commit, view->ref);
5958 static struct view_ops main_ops = {
5971 * Unicode / UTF-8 handling
5973 * NOTE: Much of the following code for dealing with Unicode is derived from
5974 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5975 * src/intl/charset.c from the UTF-8 branch commit elinks-0.11.0-g31f2c28.
5979 unicode_width(unsigned long c)
5982 (c <= 0x115f /* Hangul Jamo */
5985 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5987 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5988 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5989 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5990 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5991 || (c >= 0xffe0 && c <= 0xffe6)
5992 || (c >= 0x20000 && c <= 0x2fffd)
5993 || (c >= 0x30000 && c <= 0x3fffd)))
5997 return opt_tab_size;
6002 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
6003 * Illegal bytes are set one. */
6004 static const unsigned char utf8_bytes[256] = {
6005 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,
6006 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,
6007 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,
6008 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,
6009 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,
6010 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,
6011 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,
6012 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,
6015 /* Decode UTF-8 multi-byte representation into a Unicode character. */
6016 static inline unsigned long
6017 utf8_to_unicode(const char *string, size_t length)
6019 unsigned long unicode;
6023 unicode = string[0];
6026 unicode = (string[0] & 0x1f) << 6;
6027 unicode += (string[1] & 0x3f);
6030 unicode = (string[0] & 0x0f) << 12;
6031 unicode += ((string[1] & 0x3f) << 6);
6032 unicode += (string[2] & 0x3f);
6035 unicode = (string[0] & 0x0f) << 18;
6036 unicode += ((string[1] & 0x3f) << 12);
6037 unicode += ((string[2] & 0x3f) << 6);
6038 unicode += (string[3] & 0x3f);
6041 unicode = (string[0] & 0x0f) << 24;
6042 unicode += ((string[1] & 0x3f) << 18);
6043 unicode += ((string[2] & 0x3f) << 12);
6044 unicode += ((string[3] & 0x3f) << 6);
6045 unicode += (string[4] & 0x3f);
6048 unicode = (string[0] & 0x01) << 30;
6049 unicode += ((string[1] & 0x3f) << 24);
6050 unicode += ((string[2] & 0x3f) << 18);
6051 unicode += ((string[3] & 0x3f) << 12);
6052 unicode += ((string[4] & 0x3f) << 6);
6053 unicode += (string[5] & 0x3f);
6056 die("Invalid Unicode length");
6059 /* Invalid characters could return the special 0xfffd value but NUL
6060 * should be just as good. */
6061 return unicode > 0xffff ? 0 : unicode;
6064 /* Calculates how much of string can be shown within the given maximum width
6065 * and sets trimmed parameter to non-zero value if all of string could not be
6066 * shown. If the reserve flag is TRUE, it will reserve at least one
6067 * trailing character, which can be useful when drawing a delimiter.
6069 * Returns the number of bytes to output from string to satisfy max_width. */
6071 utf8_length(const char **start, size_t skip, int *width, size_t max_width, int *trimmed, bool reserve)
6073 const char *string = *start;
6074 const char *end = strchr(string, '\0');
6075 unsigned char last_bytes = 0;
6076 size_t last_ucwidth = 0;
6081 while (string < end) {
6082 int c = *(unsigned char *) string;
6083 unsigned char bytes = utf8_bytes[c];
6085 unsigned long unicode;
6087 if (string + bytes > end)
6090 /* Change representation to figure out whether
6091 * it is a single- or double-width character. */
6093 unicode = utf8_to_unicode(string, bytes);
6094 /* FIXME: Graceful handling of invalid Unicode character. */
6098 ucwidth = unicode_width(unicode);
6100 skip -= ucwidth <= skip ? ucwidth : skip;
6104 if (*width > max_width) {
6107 if (reserve && *width == max_width) {
6108 string -= last_bytes;
6109 *width -= last_ucwidth;
6115 last_bytes = ucwidth ? bytes : 0;
6116 last_ucwidth = ucwidth;
6119 return string - *start;
6127 /* Whether or not the curses interface has been initialized. */
6128 static bool cursed = FALSE;
6130 /* Terminal hacks and workarounds. */
6131 static bool use_scroll_redrawwin;
6132 static bool use_scroll_status_wclear;
6134 /* The status window is used for polling keystrokes. */
6135 static WINDOW *status_win;
6137 /* Reading from the prompt? */
6138 static bool input_mode = FALSE;
6140 static bool status_empty = FALSE;
6142 /* Update status and title window. */
6144 report(const char *msg, ...)
6146 struct view *view = display[current_view];
6152 char buf[SIZEOF_STR];
6155 va_start(args, msg);
6156 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6157 buf[sizeof(buf) - 1] = 0;
6158 buf[sizeof(buf) - 2] = '.';
6159 buf[sizeof(buf) - 3] = '.';
6160 buf[sizeof(buf) - 4] = '.';
6166 if (!status_empty || *msg) {
6169 va_start(args, msg);
6171 wmove(status_win, 0, 0);
6172 if (view->has_scrolled && use_scroll_status_wclear)
6175 vwprintw(status_win, msg, args);
6176 status_empty = FALSE;
6178 status_empty = TRUE;
6180 wclrtoeol(status_win);
6181 wnoutrefresh(status_win);
6186 update_view_title(view);
6189 /* Controls when nodelay should be in effect when polling user input. */
6191 set_nonblocking_input(bool loading)
6193 static unsigned int loading_views;
6195 if ((loading == FALSE && loading_views-- == 1) ||
6196 (loading == TRUE && loading_views++ == 0))
6197 nodelay(status_win, loading);
6206 /* Initialize the curses library */
6207 if (isatty(STDIN_FILENO)) {
6208 cursed = !!initscr();
6211 /* Leave stdin and stdout alone when acting as a pager. */
6212 opt_tty = fopen("/dev/tty", "r+");
6214 die("Failed to open /dev/tty");
6215 cursed = !!newterm(NULL, opt_tty, opt_tty);
6219 die("Failed to initialize curses");
6221 nonl(); /* Disable conversion and detect newlines from input. */
6222 cbreak(); /* Take input chars one at a time, no wait for \n */
6223 noecho(); /* Don't echo input */
6224 leaveok(stdscr, FALSE);
6229 getmaxyx(stdscr, y, x);
6230 status_win = newwin(1, 0, y - 1, 0);
6232 die("Failed to create status window");
6234 /* Enable keyboard mapping */
6235 keypad(status_win, TRUE);
6236 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6238 TABSIZE = opt_tab_size;
6239 if (opt_line_graphics) {
6240 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6243 term = getenv("XTERM_VERSION") ? NULL : getenv("COLORTERM");
6244 if (term && !strcmp(term, "gnome-terminal")) {
6245 /* In the gnome-terminal-emulator, the message from
6246 * scrolling up one line when impossible followed by
6247 * scrolling down one line causes corruption of the
6248 * status line. This is fixed by calling wclear. */
6249 use_scroll_status_wclear = TRUE;
6250 use_scroll_redrawwin = FALSE;
6252 } else if (term && !strcmp(term, "xrvt-xpm")) {
6253 /* No problems with full optimizations in xrvt-(unicode)
6255 use_scroll_status_wclear = use_scroll_redrawwin = FALSE;
6258 /* When scrolling in (u)xterm the last line in the
6259 * scrolling direction will update slowly. */
6260 use_scroll_redrawwin = TRUE;
6261 use_scroll_status_wclear = FALSE;
6266 get_input(int prompt_position)
6269 int i, key, cursor_y, cursor_x;
6271 if (prompt_position)
6275 foreach_view (view, i) {
6277 if (view_is_displayed(view) && view->has_scrolled &&
6278 use_scroll_redrawwin)
6279 redrawwin(view->win);
6280 view->has_scrolled = FALSE;
6283 /* Update the cursor position. */
6284 if (prompt_position) {
6285 getbegyx(status_win, cursor_y, cursor_x);
6286 cursor_x = prompt_position;
6288 view = display[current_view];
6289 getbegyx(view->win, cursor_y, cursor_x);
6290 cursor_x = view->width - 1;
6291 cursor_y += view->lineno - view->offset;
6293 setsyx(cursor_y, cursor_x);
6295 /* Refresh, accept single keystroke of input */
6297 key = wgetch(status_win);
6299 /* wgetch() with nodelay() enabled returns ERR when
6300 * there's no input. */
6303 } else if (key == KEY_RESIZE) {
6306 getmaxyx(stdscr, height, width);
6308 wresize(status_win, 1, width);
6309 mvwin(status_win, height - 1, 0);
6310 wnoutrefresh(status_win);
6312 redraw_display(TRUE);
6322 prompt_input(const char *prompt, input_handler handler, void *data)
6324 enum input_status status = INPUT_OK;
6325 static char buf[SIZEOF_STR];
6330 while (status == INPUT_OK || status == INPUT_SKIP) {
6333 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6334 wclrtoeol(status_win);
6336 key = get_input(pos + 1);
6341 status = pos ? INPUT_STOP : INPUT_CANCEL;
6348 status = INPUT_CANCEL;
6352 status = INPUT_CANCEL;
6356 if (pos >= sizeof(buf)) {
6357 report("Input string too long");
6361 status = handler(data, buf, key);
6362 if (status == INPUT_OK)
6363 buf[pos++] = (char) key;
6367 /* Clear the status window */
6368 status_empty = FALSE;
6371 if (status == INPUT_CANCEL)
6379 static enum input_status
6380 prompt_yesno_handler(void *data, char *buf, int c)
6382 if (c == 'y' || c == 'Y')
6384 if (c == 'n' || c == 'N')
6385 return INPUT_CANCEL;
6390 prompt_yesno(const char *prompt)
6392 char prompt2[SIZEOF_STR];
6394 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6397 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6400 static enum input_status
6401 read_prompt_handler(void *data, char *buf, int c)
6403 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6407 read_prompt(const char *prompt)
6409 return prompt_input(prompt, read_prompt_handler, NULL);
6413 * Repository properties
6416 static struct ref *refs = NULL;
6417 static size_t refs_alloc = 0;
6418 static size_t refs_size = 0;
6420 /* Id <-> ref store */
6421 static struct ref ***id_refs = NULL;
6422 static size_t id_refs_alloc = 0;
6423 static size_t id_refs_size = 0;
6426 compare_refs(const void *ref1_, const void *ref2_)
6428 const struct ref *ref1 = *(const struct ref **)ref1_;
6429 const struct ref *ref2 = *(const struct ref **)ref2_;
6431 if (ref1->tag != ref2->tag)
6432 return ref2->tag - ref1->tag;
6433 if (ref1->ltag != ref2->ltag)
6434 return ref2->ltag - ref2->ltag;
6435 if (ref1->head != ref2->head)
6436 return ref2->head - ref1->head;
6437 if (ref1->tracked != ref2->tracked)
6438 return ref2->tracked - ref1->tracked;
6439 if (ref1->remote != ref2->remote)
6440 return ref2->remote - ref1->remote;
6441 return strcmp(ref1->name, ref2->name);
6444 static struct ref **
6445 get_refs(const char *id)
6447 struct ref ***tmp_id_refs;
6448 struct ref **ref_list = NULL;
6449 size_t ref_list_alloc = 0;
6450 size_t ref_list_size = 0;
6453 for (i = 0; i < id_refs_size; i++)
6454 if (!strcmp(id, id_refs[i][0]->id))
6457 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6462 id_refs = tmp_id_refs;
6464 for (i = 0; i < refs_size; i++) {
6467 if (strcmp(id, refs[i].id))
6470 tmp = realloc_items(ref_list, &ref_list_alloc,
6471 ref_list_size + 1, sizeof(*ref_list));
6479 ref_list[ref_list_size] = &refs[i];
6480 /* XXX: The properties of the commit chains ensures that we can
6481 * safely modify the shared ref. The repo references will
6482 * always be similar for the same id. */
6483 ref_list[ref_list_size]->next = 1;
6489 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6490 ref_list[ref_list_size - 1]->next = 0;
6491 id_refs[id_refs_size++] = ref_list;
6498 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6503 bool remote = FALSE;
6504 bool tracked = FALSE;
6505 bool check_replace = FALSE;
6508 if (!prefixcmp(name, "refs/tags/")) {
6509 if (!suffixcmp(name, namelen, "^{}")) {
6512 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6513 check_replace = TRUE;
6519 namelen -= STRING_SIZE("refs/tags/");
6520 name += STRING_SIZE("refs/tags/");
6522 } else if (!prefixcmp(name, "refs/remotes/")) {
6524 namelen -= STRING_SIZE("refs/remotes/");
6525 name += STRING_SIZE("refs/remotes/");
6526 tracked = !strcmp(opt_remote, name);
6528 } else if (!prefixcmp(name, "refs/heads/")) {
6529 namelen -= STRING_SIZE("refs/heads/");
6530 name += STRING_SIZE("refs/heads/");
6531 head = !strncmp(opt_head, name, namelen);
6533 } else if (!strcmp(name, "HEAD")) {
6534 string_ncopy(opt_head_rev, id, idlen);
6538 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6539 /* it's an annotated tag, replace the previous SHA1 with the
6540 * resolved commit id; relies on the fact git-ls-remote lists
6541 * the commit id of an annotated tag right before the commit id
6543 refs[refs_size - 1].ltag = ltag;
6544 string_copy_rev(refs[refs_size - 1].id, id);
6548 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6552 ref = &refs[refs_size++];
6553 ref->name = malloc(namelen + 1);
6557 strncpy(ref->name, name, namelen);
6558 ref->name[namelen] = 0;
6562 ref->remote = remote;
6563 ref->tracked = tracked;
6564 string_copy_rev(ref->id, id);
6572 static const char *ls_remote_argv[SIZEOF_ARG] = {
6573 "git", "ls-remote", ".", NULL
6575 static bool init = FALSE;
6578 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6585 while (refs_size > 0)
6586 free(refs[--refs_size].name);
6587 while (id_refs_size > 0)
6588 free(id_refs[--id_refs_size]);
6590 return run_io_load(ls_remote_argv, "\t", read_ref);
6594 set_repo_config_option(char *name, char *value, int (*cmd)(int, const char **))
6596 const char *argv[SIZEOF_ARG] = { name, "=" };
6597 int argc = 1 + (cmd == option_set_command);
6600 if (!argv_from_string(argv, &argc, value))
6601 config_msg = "Too many option arguments";
6603 error = cmd(argc, argv);
6606 warn("Option 'tig.%s': %s", name, config_msg);
6610 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6612 if (!strcmp(name, "i18n.commitencoding"))
6613 string_ncopy(opt_encoding, value, valuelen);
6615 if (!strcmp(name, "core.editor"))
6616 string_ncopy(opt_editor, value, valuelen);
6618 if (!prefixcmp(name, "tig.color."))
6619 set_repo_config_option(name + 10, value, option_color_command);
6621 else if (!prefixcmp(name, "tig.bind."))
6622 set_repo_config_option(name + 9, value, option_bind_command);
6624 else if (!prefixcmp(name, "tig."))
6625 set_repo_config_option(name + 4, value, option_set_command);
6627 /* branch.<head>.remote */
6629 !strncmp(name, "branch.", 7) &&
6630 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6631 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6632 string_ncopy(opt_remote, value, valuelen);
6634 if (*opt_head && *opt_remote &&
6635 !strncmp(name, "branch.", 7) &&
6636 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6637 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6638 size_t from = strlen(opt_remote);
6640 if (!prefixcmp(value, "refs/heads/")) {
6641 value += STRING_SIZE("refs/heads/");
6642 valuelen -= STRING_SIZE("refs/heads/");
6645 if (!string_format_from(opt_remote, &from, "/%s", value))
6653 load_git_config(void)
6655 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6657 return run_io_load(config_list_argv, "=", read_repo_config_option);
6661 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6663 if (!opt_git_dir[0]) {
6664 string_ncopy(opt_git_dir, name, namelen);
6666 } else if (opt_is_inside_work_tree == -1) {
6667 /* This can be 3 different values depending on the
6668 * version of git being used. If git-rev-parse does not
6669 * understand --is-inside-work-tree it will simply echo
6670 * the option else either "true" or "false" is printed.
6671 * Default to true for the unknown case. */
6672 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6674 } else if (*name == '.') {
6675 string_ncopy(opt_cdup, name, namelen);
6678 string_ncopy(opt_prefix, name, namelen);
6685 load_repo_info(void)
6687 const char *head_argv[] = {
6688 "git", "symbolic-ref", "HEAD", NULL
6690 const char *rev_parse_argv[] = {
6691 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6692 "--show-cdup", "--show-prefix", NULL
6695 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6696 chomp_string(opt_head);
6697 if (!prefixcmp(opt_head, "refs/heads/")) {
6698 char *offset = opt_head + STRING_SIZE("refs/heads/");
6700 memmove(opt_head, offset, strlen(offset) + 1);
6704 return run_io_load(rev_parse_argv, "=", read_repo_info);
6712 static const char usage[] =
6713 "tig " TIG_VERSION " (" __DATE__ ")\n"
6715 "Usage: tig [options] [revs] [--] [paths]\n"
6716 " or: tig show [options] [revs] [--] [paths]\n"
6717 " or: tig blame [rev] path\n"
6719 " or: tig < [git command output]\n"
6722 " -v, --version Show version and exit\n"
6723 " -h, --help Show help message and exit";
6725 static void __NORETURN
6728 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6734 static void __NORETURN
6735 die(const char *err, ...)
6741 va_start(args, err);
6742 fputs("tig: ", stderr);
6743 vfprintf(stderr, err, args);
6744 fputs("\n", stderr);
6751 warn(const char *msg, ...)
6755 va_start(args, msg);
6756 fputs("tig warning: ", stderr);
6757 vfprintf(stderr, msg, args);
6758 fputs("\n", stderr);
6763 parse_options(int argc, const char *argv[])
6765 enum request request = REQ_VIEW_MAIN;
6766 const char *subcommand;
6767 bool seen_dashdash = FALSE;
6768 /* XXX: This is vulnerable to the user overriding options
6769 * required for the main view parser. */
6770 const char *custom_argv[SIZEOF_ARG] = {
6771 "git", "log", "--no-color", "--pretty=raw", "--parents",
6772 "--topo-order", NULL
6776 if (!isatty(STDIN_FILENO)) {
6777 io_open(&VIEW(REQ_VIEW_PAGER)->io, "");
6778 return REQ_VIEW_PAGER;
6784 subcommand = argv[1];
6785 if (!strcmp(subcommand, "status")) {
6787 warn("ignoring arguments after `%s'", subcommand);
6788 return REQ_VIEW_STATUS;
6790 } else if (!strcmp(subcommand, "blame")) {
6791 if (argc <= 2 || argc > 4)
6792 die("invalid number of options to blame\n\n%s", usage);
6796 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
6800 string_ncopy(opt_file, argv[i], strlen(argv[i]));
6801 return REQ_VIEW_BLAME;
6803 } else if (!strcmp(subcommand, "show")) {
6804 request = REQ_VIEW_DIFF;
6811 custom_argv[1] = subcommand;
6815 for (i = 1 + !!subcommand; i < argc; i++) {
6816 const char *opt = argv[i];
6818 if (seen_dashdash || !strcmp(opt, "--")) {
6819 seen_dashdash = TRUE;
6821 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
6822 printf("tig version %s\n", TIG_VERSION);
6825 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
6826 printf("%s\n", usage);
6830 custom_argv[j++] = opt;
6831 if (j >= ARRAY_SIZE(custom_argv))
6832 die("command too long");
6835 if (!prepare_update(VIEW(request), custom_argv, NULL, FORMAT_NONE))
6836 die("Failed to format arguments");
6842 main(int argc, const char *argv[])
6844 enum request request = parse_options(argc, argv);
6848 signal(SIGINT, quit);
6850 if (setlocale(LC_ALL, "")) {
6851 char *codeset = nl_langinfo(CODESET);
6853 string_ncopy(opt_codeset, codeset, strlen(codeset));
6856 if (load_repo_info() == ERR)
6857 die("Failed to load repo info.");
6859 if (load_options() == ERR)
6860 die("Failed to load user config.");
6862 if (load_git_config() == ERR)
6863 die("Failed to load repo config.");
6865 /* Require a git repository unless when running in pager mode. */
6866 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6867 die("Not a git repository");
6869 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6872 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6873 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6874 if (opt_iconv == ICONV_NONE)
6875 die("Failed to initialize character set conversion");
6878 if (load_refs() == ERR)
6879 die("Failed to load refs.");
6881 foreach_view (view, i)
6882 argv_from_env(view->ops->argv, view->cmd_env);
6886 if (request != REQ_NONE)
6887 open_view(NULL, request, OPEN_PREPARED);
6888 request = request == REQ_NONE ? REQ_VIEW_MAIN : REQ_NONE;
6890 while (view_driver(display[current_view], request)) {
6891 int key = get_input(0);
6893 view = display[current_view];
6894 request = get_keybinding(view->keymap, key);
6896 /* Some low-level request handling. This keeps access to
6897 * status_win restricted. */
6901 char *cmd = read_prompt(":");
6904 struct view *next = VIEW(REQ_VIEW_PAGER);
6905 const char *argv[SIZEOF_ARG] = { "git" };
6908 /* When running random commands, initially show the
6909 * command in the title. However, it maybe later be
6910 * overwritten if a commit line is selected. */
6911 string_ncopy(next->ref, cmd, strlen(cmd));
6913 if (!argv_from_string(argv, &argc, cmd)) {
6914 report("Too many arguments");
6915 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6916 report("Failed to format command");
6918 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6926 case REQ_SEARCH_BACK:
6928 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6929 char *search = read_prompt(prompt);
6932 string_ncopy(opt_search, search, strlen(search));
6933 else if (*opt_search)
6934 request = request == REQ_SEARCH ?