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 set_from_int_map(struct int_map *map, size_t map_size,
159 int *value, const char *name, int namelen)
164 for (i = 0; i < map_size; i++)
165 if (namelen == map[i].namelen &&
166 !strncasecmp(name, map[i].name, namelen)) {
167 *value = map[i].value;
181 typedef enum input_status (*input_handler)(void *data, char *buf, int c);
183 static char *prompt_input(const char *prompt, input_handler handler, void *data);
184 static bool prompt_yesno(const char *prompt);
191 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
193 if (srclen > dstlen - 1)
196 strncpy(dst, src, srclen);
200 /* Shorthands for safely copying into a fixed buffer. */
202 #define string_copy(dst, src) \
203 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
205 #define string_ncopy(dst, src, srclen) \
206 string_ncopy_do(dst, sizeof(dst), src, srclen)
208 #define string_copy_rev(dst, src) \
209 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
211 #define string_add(dst, from, src) \
212 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
215 string_expand_length(const char *line, int tabsize)
219 for (pos = 0; line[pos]; pos++) {
220 if (line[pos] == '\t' && tabsize > 0)
221 size += tabsize - (size % tabsize);
229 string_expand(char *dst, size_t dstlen, const char *src, int tabsize)
233 for (size = pos = 0; size < dstlen - 1 && src[pos]; pos++) {
234 if (src[pos] == '\t') {
235 size_t expanded = tabsize - (size % tabsize);
237 if (expanded + size >= dstlen - 1)
238 expanded = dstlen - size - 1;
239 memcpy(dst + size, " ", expanded);
242 dst[size++] = src[pos];
250 chomp_string(char *name)
254 while (isspace(*name))
257 namelen = strlen(name) - 1;
258 while (namelen > 0 && isspace(name[namelen]))
265 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
268 size_t pos = bufpos ? *bufpos : 0;
271 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
277 return pos >= bufsize ? FALSE : TRUE;
280 #define string_format(buf, fmt, args...) \
281 string_nformat(buf, sizeof(buf), NULL, fmt, args)
283 #define string_format_from(buf, from, fmt, args...) \
284 string_nformat(buf, sizeof(buf), from, fmt, args)
287 string_enum_compare(const char *str1, const char *str2, int len)
291 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
293 /* Diff-Header == DIFF_HEADER */
294 for (i = 0; i < len; i++) {
295 if (toupper(str1[i]) == toupper(str2[i]))
298 if (string_enum_sep(str1[i]) &&
299 string_enum_sep(str2[i]))
302 return str1[i] - str2[i];
308 #define prefixcmp(str1, str2) \
309 strncmp(str1, str2, STRING_SIZE(str2))
312 suffixcmp(const char *str, int slen, const char *suffix)
314 size_t len = slen >= 0 ? slen : strlen(str);
315 size_t suffixlen = strlen(suffix);
317 return suffixlen < len ? strcmp(str + len - suffixlen, suffix) : -1;
322 argv_from_string(const char *argv[SIZEOF_ARG], int *argc, char *cmd)
326 while (*cmd && *argc < SIZEOF_ARG && (valuelen = strcspn(cmd, " \t"))) {
327 bool advance = cmd[valuelen] != 0;
330 argv[(*argc)++] = chomp_string(cmd);
331 cmd = chomp_string(cmd + valuelen + advance);
334 if (*argc < SIZEOF_ARG)
336 return *argc < SIZEOF_ARG;
340 argv_from_env(const char **argv, const char *name)
342 char *env = argv ? getenv(name) : NULL;
347 if (env && !argv_from_string(argv, &argc, env))
348 die("Too many arguments in the `%s` environment variable", name);
353 * Executing external commands.
357 IO_FD, /* File descriptor based IO. */
358 IO_BG, /* Execute command in the background. */
359 IO_FG, /* Execute command with same std{in,out,err}. */
360 IO_RD, /* Read only fork+exec IO. */
361 IO_WR, /* Write only fork+exec IO. */
362 IO_AP, /* Append fork+exec output to file. */
366 enum io_type type; /* The requested type of pipe. */
367 const char *dir; /* Directory from which to execute. */
368 pid_t pid; /* Pipe for reading or writing. */
369 int pipe; /* Pipe end for reading or writing. */
370 int error; /* Error status. */
371 const char *argv[SIZEOF_ARG]; /* Shell command arguments. */
372 char *buf; /* Read buffer. */
373 size_t bufalloc; /* Allocated buffer size. */
374 size_t bufsize; /* Buffer content size. */
375 char *bufpos; /* Current buffer position. */
376 unsigned int eof:1; /* Has end of file been reached. */
380 reset_io(struct io *io)
384 io->buf = io->bufpos = NULL;
385 io->bufalloc = io->bufsize = 0;
391 init_io(struct io *io, const char *dir, enum io_type type)
399 init_io_rd(struct io *io, const char *argv[], const char *dir,
400 enum format_flags flags)
402 init_io(io, dir, IO_RD);
403 return format_argv(io->argv, argv, flags);
407 io_open(struct io *io, const char *name)
409 init_io(io, NULL, IO_FD);
410 io->pipe = *name ? open(name, O_RDONLY) : STDIN_FILENO;
411 return io->pipe != -1;
415 kill_io(struct io *io)
417 return io->pid == 0 || kill(io->pid, SIGKILL) != -1;
421 done_io(struct io *io)
432 pid_t waiting = waitpid(pid, &status, 0);
437 report("waitpid failed (%s)", strerror(errno));
441 return waiting == pid &&
442 !WIFSIGNALED(status) &&
444 !WEXITSTATUS(status);
451 start_io(struct io *io)
453 int pipefds[2] = { -1, -1 };
455 if (io->type == IO_FD)
458 if ((io->type == IO_RD || io->type == IO_WR) &&
461 else if (io->type == IO_AP)
462 pipefds[1] = io->pipe;
464 if ((io->pid = fork())) {
465 if (pipefds[!(io->type == IO_WR)] != -1)
466 close(pipefds[!(io->type == IO_WR)]);
468 io->pipe = pipefds[!!(io->type == IO_WR)];
473 if (io->type != IO_FG) {
474 int devnull = open("/dev/null", O_RDWR);
475 int readfd = io->type == IO_WR ? pipefds[0] : devnull;
476 int writefd = (io->type == IO_RD || io->type == IO_AP)
477 ? pipefds[1] : devnull;
479 dup2(readfd, STDIN_FILENO);
480 dup2(writefd, STDOUT_FILENO);
481 dup2(devnull, STDERR_FILENO);
484 if (pipefds[0] != -1)
486 if (pipefds[1] != -1)
490 if (io->dir && *io->dir && chdir(io->dir) == -1)
491 die("Failed to change directory: %s", strerror(errno));
493 execvp(io->argv[0], (char *const*) io->argv);
494 die("Failed to execute program: %s", strerror(errno));
497 if (pipefds[!!(io->type == IO_WR)] != -1)
498 close(pipefds[!!(io->type == IO_WR)]);
503 run_io(struct io *io, const char **argv, const char *dir, enum io_type type)
505 init_io(io, dir, type);
506 if (!format_argv(io->argv, argv, FORMAT_NONE))
512 run_io_do(struct io *io)
514 return start_io(io) && done_io(io);
518 run_io_bg(const char **argv)
522 init_io(&io, NULL, IO_BG);
523 if (!format_argv(io.argv, argv, FORMAT_NONE))
525 return run_io_do(&io);
529 run_io_fg(const char **argv, const char *dir)
533 init_io(&io, dir, IO_FG);
534 if (!format_argv(io.argv, argv, FORMAT_NONE))
536 return run_io_do(&io);
540 run_io_append(const char **argv, enum format_flags flags, int fd)
544 init_io(&io, NULL, IO_AP);
546 if (format_argv(io.argv, argv, flags))
547 return run_io_do(&io);
553 run_io_rd(struct io *io, const char **argv, enum format_flags flags)
555 return init_io_rd(io, argv, NULL, flags) && start_io(io);
559 io_eof(struct io *io)
565 io_error(struct io *io)
571 io_strerror(struct io *io)
573 return strerror(io->error);
577 io_can_read(struct io *io)
579 struct timeval tv = { 0, 500 };
583 FD_SET(io->pipe, &fds);
585 return select(io->pipe + 1, &fds, NULL, NULL, &tv) > 0;
589 io_read(struct io *io, void *buf, size_t bufsize)
592 ssize_t readsize = read(io->pipe, buf, bufsize);
594 if (readsize < 0 && (errno == EAGAIN || errno == EINTR))
596 else if (readsize == -1)
598 else if (readsize == 0)
605 io_get(struct io *io, int c, bool can_read)
611 io->buf = io->bufpos = malloc(BUFSIZ);
614 io->bufalloc = BUFSIZ;
619 if (io->bufsize > 0) {
620 eol = memchr(io->bufpos, c, io->bufsize);
622 char *line = io->bufpos;
625 io->bufpos = eol + 1;
626 io->bufsize -= io->bufpos - line;
633 io->bufpos[io->bufsize] = 0;
643 if (io->bufsize > 0 && io->bufpos > io->buf)
644 memmove(io->buf, io->bufpos, io->bufsize);
646 io->bufpos = io->buf;
647 readsize = io_read(io, io->buf + io->bufsize, io->bufalloc - io->bufsize);
650 io->bufsize += readsize;
655 io_write(struct io *io, const void *buf, size_t bufsize)
659 while (!io_error(io) && written < bufsize) {
662 size = write(io->pipe, buf + written, bufsize - written);
663 if (size < 0 && (errno == EAGAIN || errno == EINTR))
671 return written == bufsize;
675 run_io_buf(const char **argv, char buf[], size_t bufsize)
680 if (!run_io_rd(&io, argv, FORMAT_NONE))
683 io.buf = io.bufpos = buf;
684 io.bufalloc = bufsize;
685 error = !io_get(&io, '\n', TRUE) && io_error(&io);
688 return done_io(&io) || error;
692 io_load(struct io *io, const char *separators,
693 int (*read_property)(char *, size_t, char *, size_t))
701 while (state == OK && (name = io_get(io, '\n', TRUE))) {
706 name = chomp_string(name);
707 namelen = strcspn(name, separators);
711 value = chomp_string(name + namelen + 1);
712 valuelen = strlen(value);
719 state = read_property(name, namelen, value, valuelen);
722 if (state != ERR && io_error(io))
730 run_io_load(const char **argv, const char *separators,
731 int (*read_property)(char *, size_t, char *, size_t))
735 return init_io_rd(&io, argv, NULL, FORMAT_NONE)
736 ? io_load(&io, separators, read_property) : ERR;
745 /* XXX: Keep the view request first and in sync with views[]. */ \
746 REQ_GROUP("View switching") \
747 REQ_(VIEW_MAIN, "Show main view"), \
748 REQ_(VIEW_DIFF, "Show diff view"), \
749 REQ_(VIEW_LOG, "Show log view"), \
750 REQ_(VIEW_TREE, "Show tree view"), \
751 REQ_(VIEW_BLOB, "Show blob view"), \
752 REQ_(VIEW_BLAME, "Show blame view"), \
753 REQ_(VIEW_HELP, "Show help page"), \
754 REQ_(VIEW_PAGER, "Show pager view"), \
755 REQ_(VIEW_STATUS, "Show status view"), \
756 REQ_(VIEW_STAGE, "Show stage view"), \
758 REQ_GROUP("View manipulation") \
759 REQ_(ENTER, "Enter current line and scroll"), \
760 REQ_(NEXT, "Move to next"), \
761 REQ_(PREVIOUS, "Move to previous"), \
762 REQ_(PARENT, "Move to parent"), \
763 REQ_(VIEW_NEXT, "Move focus to next view"), \
764 REQ_(REFRESH, "Reload and refresh"), \
765 REQ_(MAXIMIZE, "Maximize the current view"), \
766 REQ_(VIEW_CLOSE, "Close the current view"), \
767 REQ_(QUIT, "Close all views and quit"), \
769 REQ_GROUP("View specific requests") \
770 REQ_(STATUS_UPDATE, "Update file status"), \
771 REQ_(STATUS_REVERT, "Revert file changes"), \
772 REQ_(STATUS_MERGE, "Merge file using external tool"), \
773 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
775 REQ_GROUP("Cursor navigation") \
776 REQ_(MOVE_UP, "Move cursor one line up"), \
777 REQ_(MOVE_DOWN, "Move cursor one line down"), \
778 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
779 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
780 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
781 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
783 REQ_GROUP("Scrolling") \
784 REQ_(SCROLL_LEFT, "Scroll two columns left"), \
785 REQ_(SCROLL_RIGHT, "Scroll two columns right"), \
786 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
787 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
788 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
789 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
791 REQ_GROUP("Searching") \
792 REQ_(SEARCH, "Search the view"), \
793 REQ_(SEARCH_BACK, "Search backwards in the view"), \
794 REQ_(FIND_NEXT, "Find next search match"), \
795 REQ_(FIND_PREV, "Find previous search match"), \
797 REQ_GROUP("Option manipulation") \
798 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
799 REQ_(TOGGLE_DATE, "Toggle date display"), \
800 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
801 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
802 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
805 REQ_(PROMPT, "Bring up the prompt"), \
806 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
807 REQ_(SHOW_VERSION, "Show version information"), \
808 REQ_(STOP_LOADING, "Stop all loading views"), \
809 REQ_(EDIT, "Open in editor"), \
810 REQ_(NONE, "Do nothing")
813 /* User action requests. */
815 #define REQ_GROUP(help)
816 #define REQ_(req, help) REQ_##req
818 /* Offset all requests to avoid conflicts with ncurses getch values. */
819 REQ_OFFSET = KEY_MAX + 1,
826 struct request_info {
827 enum request request;
833 static struct request_info req_info[] = {
834 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
835 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
842 get_request(const char *name)
844 int namelen = strlen(name);
847 for (i = 0; i < ARRAY_SIZE(req_info); i++)
848 if (req_info[i].namelen == namelen &&
849 !string_enum_compare(req_info[i].name, name, namelen))
850 return req_info[i].request;
860 /* Option and state variables. */
861 static bool opt_date = TRUE;
862 static bool opt_author = TRUE;
863 static bool opt_line_number = FALSE;
864 static bool opt_line_graphics = TRUE;
865 static bool opt_rev_graph = FALSE;
866 static bool opt_show_refs = TRUE;
867 static int opt_num_interval = NUMBER_INTERVAL;
868 static int opt_tab_size = TAB_SIZE;
869 static int opt_author_cols = AUTHOR_COLS-1;
870 static char opt_path[SIZEOF_STR] = "";
871 static char opt_file[SIZEOF_STR] = "";
872 static char opt_ref[SIZEOF_REF] = "";
873 static char opt_head[SIZEOF_REF] = "";
874 static char opt_head_rev[SIZEOF_REV] = "";
875 static char opt_remote[SIZEOF_REF] = "";
876 static char opt_encoding[20] = "UTF-8";
877 static bool opt_utf8 = TRUE;
878 static char opt_codeset[20] = "UTF-8";
879 static iconv_t opt_iconv = ICONV_NONE;
880 static char opt_search[SIZEOF_STR] = "";
881 static char opt_cdup[SIZEOF_STR] = "";
882 static char opt_prefix[SIZEOF_STR] = "";
883 static char opt_git_dir[SIZEOF_STR] = "";
884 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
885 static char opt_editor[SIZEOF_STR] = "";
886 static FILE *opt_tty = NULL;
888 #define is_initial_commit() (!*opt_head_rev)
889 #define is_head_commit(rev) (!strcmp((rev), "HEAD") || !strcmp(opt_head_rev, (rev)))
893 * Line-oriented content detection.
897 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
898 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
899 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
900 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
901 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
902 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
903 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
904 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
905 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
906 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
907 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
908 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
909 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
910 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
911 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
912 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
913 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
914 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
915 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
916 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
917 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
918 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
919 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
920 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
921 LINE(AUTHOR, "author ", COLOR_GREEN, COLOR_DEFAULT, 0), \
922 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
923 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
924 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
925 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
926 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
927 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
928 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
929 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
930 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
931 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
932 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
933 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
934 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
935 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
936 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
937 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
938 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
939 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
940 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
941 LINE(TREE_PARENT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_BOLD), \
942 LINE(TREE_MODE, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
943 LINE(TREE_DIR, "", COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL), \
944 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
945 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
946 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
947 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
948 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
949 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
950 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
951 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
954 #define LINE(type, line, fg, bg, attr) \
962 const char *name; /* Option name. */
963 int namelen; /* Size of option name. */
964 const char *line; /* The start of line to match. */
965 int linelen; /* Size of string to match. */
966 int fg, bg, attr; /* Color and text attributes for the lines. */
969 static struct line_info line_info[] = {
970 #define LINE(type, line, fg, bg, attr) \
971 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
976 static enum line_type
977 get_line_type(const char *line)
979 int linelen = strlen(line);
982 for (type = 0; type < ARRAY_SIZE(line_info); type++)
983 /* Case insensitive search matches Signed-off-by lines better. */
984 if (linelen >= line_info[type].linelen &&
985 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
992 get_line_attr(enum line_type type)
994 assert(type < ARRAY_SIZE(line_info));
995 return COLOR_PAIR(type) | line_info[type].attr;
998 static struct line_info *
999 get_line_info(const char *name)
1001 size_t namelen = strlen(name);
1002 enum line_type type;
1004 for (type = 0; type < ARRAY_SIZE(line_info); type++)
1005 if (namelen == line_info[type].namelen &&
1006 !string_enum_compare(line_info[type].name, name, namelen))
1007 return &line_info[type];
1015 int default_bg = line_info[LINE_DEFAULT].bg;
1016 int default_fg = line_info[LINE_DEFAULT].fg;
1017 enum line_type type;
1021 if (assume_default_colors(default_fg, default_bg) == ERR) {
1022 default_bg = COLOR_BLACK;
1023 default_fg = COLOR_WHITE;
1026 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
1027 struct line_info *info = &line_info[type];
1028 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
1029 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
1031 init_pair(type, fg, bg);
1036 enum line_type type;
1039 unsigned int selected:1;
1040 unsigned int dirty:1;
1041 unsigned int cleareol:1;
1043 void *data; /* User data */
1053 enum request request;
1056 static struct keybinding default_keybindings[] = {
1057 /* View switching */
1058 { 'm', REQ_VIEW_MAIN },
1059 { 'd', REQ_VIEW_DIFF },
1060 { 'l', REQ_VIEW_LOG },
1061 { 't', REQ_VIEW_TREE },
1062 { 'f', REQ_VIEW_BLOB },
1063 { 'B', REQ_VIEW_BLAME },
1064 { 'p', REQ_VIEW_PAGER },
1065 { 'h', REQ_VIEW_HELP },
1066 { 'S', REQ_VIEW_STATUS },
1067 { 'c', REQ_VIEW_STAGE },
1069 /* View manipulation */
1070 { 'q', REQ_VIEW_CLOSE },
1071 { KEY_TAB, REQ_VIEW_NEXT },
1072 { KEY_RETURN, REQ_ENTER },
1073 { KEY_UP, REQ_PREVIOUS },
1074 { KEY_DOWN, REQ_NEXT },
1075 { 'R', REQ_REFRESH },
1076 { KEY_F(5), REQ_REFRESH },
1077 { 'O', REQ_MAXIMIZE },
1079 /* Cursor navigation */
1080 { 'k', REQ_MOVE_UP },
1081 { 'j', REQ_MOVE_DOWN },
1082 { KEY_HOME, REQ_MOVE_FIRST_LINE },
1083 { KEY_END, REQ_MOVE_LAST_LINE },
1084 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
1085 { ' ', REQ_MOVE_PAGE_DOWN },
1086 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
1087 { 'b', REQ_MOVE_PAGE_UP },
1088 { '-', REQ_MOVE_PAGE_UP },
1091 { KEY_LEFT, REQ_SCROLL_LEFT },
1092 { KEY_RIGHT, REQ_SCROLL_RIGHT },
1093 { KEY_IC, REQ_SCROLL_LINE_UP },
1094 { KEY_DC, REQ_SCROLL_LINE_DOWN },
1095 { 'w', REQ_SCROLL_PAGE_UP },
1096 { 's', REQ_SCROLL_PAGE_DOWN },
1099 { '/', REQ_SEARCH },
1100 { '?', REQ_SEARCH_BACK },
1101 { 'n', REQ_FIND_NEXT },
1102 { 'N', REQ_FIND_PREV },
1106 { 'z', REQ_STOP_LOADING },
1107 { 'v', REQ_SHOW_VERSION },
1108 { 'r', REQ_SCREEN_REDRAW },
1109 { '.', REQ_TOGGLE_LINENO },
1110 { 'D', REQ_TOGGLE_DATE },
1111 { 'A', REQ_TOGGLE_AUTHOR },
1112 { 'g', REQ_TOGGLE_REV_GRAPH },
1113 { 'F', REQ_TOGGLE_REFS },
1114 { ':', REQ_PROMPT },
1115 { 'u', REQ_STATUS_UPDATE },
1116 { '!', REQ_STATUS_REVERT },
1117 { 'M', REQ_STATUS_MERGE },
1118 { '@', REQ_STAGE_NEXT },
1119 { ',', REQ_PARENT },
1123 #define KEYMAP_INFO \
1137 #define KEYMAP_(name) KEYMAP_##name
1142 static struct int_map keymap_table[] = {
1143 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
1148 #define set_keymap(map, name) \
1149 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
1151 struct keybinding_table {
1152 struct keybinding *data;
1156 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
1159 add_keybinding(enum keymap keymap, enum request request, int key)
1161 struct keybinding_table *table = &keybindings[keymap];
1163 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
1165 die("Failed to allocate keybinding");
1166 table->data[table->size].alias = key;
1167 table->data[table->size++].request = request;
1170 /* Looks for a key binding first in the given map, then in the generic map, and
1171 * lastly in the default keybindings. */
1173 get_keybinding(enum keymap keymap, int key)
1177 for (i = 0; i < keybindings[keymap].size; i++)
1178 if (keybindings[keymap].data[i].alias == key)
1179 return keybindings[keymap].data[i].request;
1181 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
1182 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
1183 return keybindings[KEYMAP_GENERIC].data[i].request;
1185 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
1186 if (default_keybindings[i].alias == key)
1187 return default_keybindings[i].request;
1189 return (enum request) key;
1198 static struct key key_table[] = {
1199 { "Enter", KEY_RETURN },
1201 { "Backspace", KEY_BACKSPACE },
1203 { "Escape", KEY_ESC },
1204 { "Left", KEY_LEFT },
1205 { "Right", KEY_RIGHT },
1207 { "Down", KEY_DOWN },
1208 { "Insert", KEY_IC },
1209 { "Delete", KEY_DC },
1211 { "Home", KEY_HOME },
1213 { "PageUp", KEY_PPAGE },
1214 { "PageDown", KEY_NPAGE },
1224 { "F10", KEY_F(10) },
1225 { "F11", KEY_F(11) },
1226 { "F12", KEY_F(12) },
1230 get_key_value(const char *name)
1234 for (i = 0; i < ARRAY_SIZE(key_table); i++)
1235 if (!strcasecmp(key_table[i].name, name))
1236 return key_table[i].value;
1238 if (strlen(name) == 1 && isprint(*name))
1245 get_key_name(int key_value)
1247 static char key_char[] = "'X'";
1248 const char *seq = NULL;
1251 for (key = 0; key < ARRAY_SIZE(key_table); key++)
1252 if (key_table[key].value == key_value)
1253 seq = key_table[key].name;
1257 isprint(key_value)) {
1258 key_char[1] = (char) key_value;
1262 return seq ? seq : "(no key)";
1266 get_key(enum request request)
1268 static char buf[BUFSIZ];
1275 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1276 struct keybinding *keybinding = &default_keybindings[i];
1278 if (keybinding->request != request)
1281 if (!string_format_from(buf, &pos, "%s%s", sep,
1282 get_key_name(keybinding->alias)))
1283 return "Too many keybindings!";
1290 struct run_request {
1293 const char *argv[SIZEOF_ARG];
1296 static struct run_request *run_request;
1297 static size_t run_requests;
1300 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
1302 struct run_request *req;
1304 if (argc >= ARRAY_SIZE(req->argv) - 1)
1307 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1312 req = &run_request[run_requests];
1313 req->keymap = keymap;
1315 req->argv[0] = NULL;
1317 if (!format_argv(req->argv, argv, FORMAT_NONE))
1320 return REQ_NONE + ++run_requests;
1323 static struct run_request *
1324 get_run_request(enum request request)
1326 if (request <= REQ_NONE)
1328 return &run_request[request - REQ_NONE - 1];
1332 add_builtin_run_requests(void)
1334 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
1335 const char *gc[] = { "git", "gc", NULL };
1342 { KEYMAP_MAIN, 'C', ARRAY_SIZE(cherry_pick) - 1, cherry_pick },
1343 { KEYMAP_GENERIC, 'G', ARRAY_SIZE(gc) - 1, gc },
1347 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1350 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argc, reqs[i].argv);
1351 if (req != REQ_NONE)
1352 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1357 * User config file handling.
1360 static struct int_map color_map[] = {
1361 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1373 #define set_color(color, name) \
1374 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1376 static struct int_map attr_map[] = {
1377 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1384 ATTR_MAP(UNDERLINE),
1387 #define set_attribute(attr, name) \
1388 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1390 static int config_lineno;
1391 static bool config_errors;
1392 static const char *config_msg;
1394 /* Wants: object fgcolor bgcolor [attr] */
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 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1408 info = get_line_info("delimiter");
1410 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1411 info = get_line_info("date");
1413 } else if (!string_enum_compare(argv[0], "main-author", strlen("main-author"))) {
1414 info = get_line_info("author");
1417 config_msg = "Unknown color name";
1422 if (set_color(&info->fg, argv[1]) == ERR ||
1423 set_color(&info->bg, argv[2]) == ERR) {
1424 config_msg = "Unknown color";
1428 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1429 config_msg = "Unknown attribute";
1436 static bool parse_bool(const char *s)
1438 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1439 !strcmp(s, "yes")) ? TRUE : FALSE;
1443 parse_int(const char *s, int default_value, int min, int max)
1445 int value = atoi(s);
1447 return (value < min || value > max) ? default_value : value;
1450 /* Wants: name = value */
1452 option_set_command(int argc, const char *argv[])
1455 config_msg = "Wrong number of arguments given to set command";
1459 if (strcmp(argv[1], "=")) {
1460 config_msg = "No value assigned";
1464 if (!strcmp(argv[0], "show-author")) {
1465 opt_author = parse_bool(argv[2]);
1469 if (!strcmp(argv[0], "show-date")) {
1470 opt_date = parse_bool(argv[2]);
1474 if (!strcmp(argv[0], "show-rev-graph")) {
1475 opt_rev_graph = parse_bool(argv[2]);
1479 if (!strcmp(argv[0], "show-refs")) {
1480 opt_show_refs = parse_bool(argv[2]);
1484 if (!strcmp(argv[0], "show-line-numbers")) {
1485 opt_line_number = parse_bool(argv[2]);
1489 if (!strcmp(argv[0], "line-graphics")) {
1490 opt_line_graphics = parse_bool(argv[2]);
1494 if (!strcmp(argv[0], "line-number-interval")) {
1495 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1499 if (!strcmp(argv[0], "author-width")) {
1500 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1504 if (!strcmp(argv[0], "tab-size")) {
1505 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1509 if (!strcmp(argv[0], "commit-encoding")) {
1510 const char *arg = argv[2];
1511 int arglen = strlen(arg);
1516 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1517 config_msg = "Unmatched quotation";
1520 arg += 1; arglen -= 2;
1522 string_ncopy(opt_encoding, arg, strlen(arg));
1527 config_msg = "Unknown variable name";
1531 /* Wants: mode request key */
1533 option_bind_command(int argc, const char *argv[])
1535 enum request request;
1540 config_msg = "Wrong number of arguments given to bind command";
1544 if (set_keymap(&keymap, argv[0]) == ERR) {
1545 config_msg = "Unknown key map";
1549 key = get_key_value(argv[1]);
1551 config_msg = "Unknown key";
1555 request = get_request(argv[2]);
1556 if (request == REQ_NONE) {
1559 enum request request;
1561 { "cherry-pick", REQ_NONE },
1562 { "screen-resize", REQ_NONE },
1563 { "tree-parent", REQ_PARENT },
1565 size_t namelen = strlen(argv[2]);
1568 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1569 if (namelen != strlen(obsolete[i].name) ||
1570 string_enum_compare(obsolete[i].name, argv[2], namelen))
1572 if (obsolete[i].request != REQ_NONE)
1573 add_keybinding(keymap, obsolete[i].request, key);
1574 config_msg = "Obsolete request name";
1578 if (request == REQ_NONE && *argv[2]++ == '!')
1579 request = add_run_request(keymap, key, argc - 2, argv + 2);
1580 if (request == REQ_NONE) {
1581 config_msg = "Unknown request name";
1585 add_keybinding(keymap, request, key);
1591 set_option(const char *opt, char *value)
1593 const char *argv[SIZEOF_ARG];
1596 if (!argv_from_string(argv, &argc, value)) {
1597 config_msg = "Too many option arguments";
1601 if (!strcmp(opt, "color"))
1602 return option_color_command(argc, argv);
1604 if (!strcmp(opt, "set"))
1605 return option_set_command(argc, argv);
1607 if (!strcmp(opt, "bind"))
1608 return option_bind_command(argc, argv);
1610 config_msg = "Unknown option command";
1615 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1620 config_msg = "Internal error";
1622 /* Check for comment markers, since read_properties() will
1623 * only ensure opt and value are split at first " \t". */
1624 optlen = strcspn(opt, "#");
1628 if (opt[optlen] != 0) {
1629 config_msg = "No option value";
1633 /* Look for comment endings in the value. */
1634 size_t len = strcspn(value, "#");
1636 if (len < valuelen) {
1638 value[valuelen] = 0;
1641 status = set_option(opt, value);
1644 if (status == ERR) {
1645 warn("Error on line %d, near '%.*s': %s",
1646 config_lineno, (int) optlen, opt, config_msg);
1647 config_errors = TRUE;
1650 /* Always keep going if errors are encountered. */
1655 load_option_file(const char *path)
1659 /* It's ok that the file doesn't exist. */
1660 if (!io_open(&io, path))
1664 config_errors = FALSE;
1666 if (io_load(&io, " \t", read_option) == ERR ||
1667 config_errors == TRUE)
1668 warn("Errors while loading %s.", path);
1674 const char *home = getenv("HOME");
1675 const char *tigrc_user = getenv("TIGRC_USER");
1676 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1677 char buf[SIZEOF_STR];
1679 add_builtin_run_requests();
1681 if (!tigrc_system) {
1682 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1686 load_option_file(tigrc_system);
1689 if (!home || !string_format(buf, "%s/.tigrc", home))
1693 load_option_file(tigrc_user);
1706 /* The display array of active views and the index of the current view. */
1707 static struct view *display[2];
1708 static unsigned int current_view;
1710 #define foreach_displayed_view(view, i) \
1711 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1713 #define displayed_views() (display[1] != NULL ? 2 : 1)
1715 /* Current head and commit ID */
1716 static char ref_blob[SIZEOF_REF] = "";
1717 static char ref_commit[SIZEOF_REF] = "HEAD";
1718 static char ref_head[SIZEOF_REF] = "HEAD";
1721 const char *name; /* View name */
1722 const char *cmd_env; /* Command line set via environment */
1723 const char *id; /* Points to either of ref_{head,commit,blob} */
1725 struct view_ops *ops; /* View operations */
1727 enum keymap keymap; /* What keymap does this view have */
1728 bool git_dir; /* Whether the view requires a git directory. */
1730 char ref[SIZEOF_REF]; /* Hovered commit reference */
1731 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1733 int height, width; /* The width and height of the main window */
1734 WINDOW *win; /* The main window */
1735 WINDOW *title; /* The title window living below the main window */
1738 unsigned long offset; /* Offset of the window top */
1739 unsigned long yoffset; /* Offset from the window side. */
1740 unsigned long lineno; /* Current line number */
1741 unsigned long p_offset; /* Previous offset of the window top */
1742 unsigned long p_yoffset;/* Previous offset from the window side */
1743 unsigned long p_lineno; /* Previous current line number */
1744 bool p_restore; /* Should the previous position be restored. */
1747 char grep[SIZEOF_STR]; /* Search string */
1748 regex_t *regex; /* Pre-compiled regex */
1750 /* If non-NULL, points to the view that opened this view. If this view
1751 * is closed tig will switch back to the parent view. */
1752 struct view *parent;
1755 size_t lines; /* Total number of lines */
1756 struct line *line; /* Line index */
1757 size_t line_alloc; /* Total number of allocated lines */
1758 unsigned int digits; /* Number of digits in the lines member. */
1761 struct line *curline; /* Line currently being drawn. */
1762 enum line_type curtype; /* Attribute currently used for drawing. */
1763 unsigned long col; /* Column when drawing. */
1764 bool has_scrolled; /* View was scrolled. */
1765 bool can_hscroll; /* View can be scrolled horizontally. */
1775 /* What type of content being displayed. Used in the title bar. */
1777 /* Default command arguments. */
1779 /* Open and reads in all view content. */
1780 bool (*open)(struct view *view);
1781 /* Read one line; updates view->line. */
1782 bool (*read)(struct view *view, char *data);
1783 /* Draw one line; @lineno must be < view->height. */
1784 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1785 /* Depending on view handle a special requests. */
1786 enum request (*request)(struct view *view, enum request request, struct line *line);
1787 /* Search for regex in a line. */
1788 bool (*grep)(struct view *view, struct line *line);
1790 void (*select)(struct view *view, struct line *line);
1793 static struct view_ops blame_ops;
1794 static struct view_ops blob_ops;
1795 static struct view_ops diff_ops;
1796 static struct view_ops help_ops;
1797 static struct view_ops log_ops;
1798 static struct view_ops main_ops;
1799 static struct view_ops pager_ops;
1800 static struct view_ops stage_ops;
1801 static struct view_ops status_ops;
1802 static struct view_ops tree_ops;
1804 #define VIEW_STR(name, env, ref, ops, map, git) \
1805 { name, #env, ref, ops, map, git }
1807 #define VIEW_(id, name, ops, git, ref) \
1808 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1811 static struct view views[] = {
1812 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1813 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1814 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1815 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1816 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1817 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1818 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1819 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1820 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1821 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1824 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1825 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1827 #define foreach_view(view, i) \
1828 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1830 #define view_is_displayed(view) \
1831 (view == display[0] || view == display[1])
1838 static int line_graphics[] = {
1839 /* LINE_GRAPHIC_VLINE: */ '|'
1843 set_view_attr(struct view *view, enum line_type type)
1845 if (!view->curline->selected && view->curtype != type) {
1846 wattrset(view->win, get_line_attr(type));
1847 wchgat(view->win, -1, 0, type, NULL);
1848 view->curtype = type;
1853 draw_chars(struct view *view, enum line_type type, const char *string,
1854 int max_len, bool use_tilde)
1858 int trimmed = FALSE;
1859 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1865 len = utf8_length(&string, skip, &col, max_len, &trimmed, use_tilde);
1867 col = len = strlen(string);
1868 if (len > max_len) {
1872 col = len = max_len;
1877 set_view_attr(view, type);
1879 waddnstr(view->win, string, len);
1880 if (trimmed && use_tilde) {
1881 set_view_attr(view, LINE_DELIMITER);
1882 waddch(view->win, '~');
1886 if (view->col + col >= view->width + view->yoffset)
1887 view->can_hscroll = TRUE;
1893 draw_space(struct view *view, enum line_type type, int max, int spaces)
1895 static char space[] = " ";
1898 spaces = MIN(max, spaces);
1900 while (spaces > 0) {
1901 int len = MIN(spaces, sizeof(space) - 1);
1903 col += draw_chars(view, type, space, spaces, FALSE);
1911 draw_lineno(struct view *view, unsigned int lineno)
1913 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1915 int digits3 = view->digits < 3 ? 3 : view->digits;
1916 int max_number = MIN(digits3, STRING_SIZE(number));
1917 int max = view->width - view->col;
1920 if (max < max_number)
1923 lineno += view->offset + 1;
1924 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1925 static char fmt[] = "%1ld";
1927 if (view->digits <= 9)
1928 fmt[1] = '0' + digits3;
1930 if (!string_format(number, fmt, lineno))
1932 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1934 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1937 if (col < max && skip <= col) {
1938 set_view_attr(view, LINE_DEFAULT);
1939 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1944 if (col < max && skip <= col)
1945 col = draw_space(view, LINE_DEFAULT, max - col, 1);
1948 return view->width + view->yoffset <= view->col;
1952 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1954 view->col += draw_chars(view, type, string, view->width + view->yoffset - view->col, trim);
1955 return view->width - view->col <= 0;
1959 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1961 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1962 int max = view->width - view->col;
1968 set_view_attr(view, type);
1969 /* Using waddch() instead of waddnstr() ensures that
1970 * they'll be rendered correctly for the cursor line. */
1971 for (i = skip; i < size; i++)
1972 waddch(view->win, graphic[i]);
1975 if (size < max && skip <= size)
1976 waddch(view->win, ' ');
1979 return view->width - view->col <= 0;
1983 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1985 int max = MIN(view->width - view->col, len);
1989 col = draw_chars(view, type, text, max - 1, trim);
1991 col = draw_space(view, type, max - 1, max - 1);
1994 view->col += draw_space(view, LINE_DEFAULT, max - col, max - col);
1995 return view->width + view->yoffset <= view->col;
1999 draw_date(struct view *view, struct tm *time)
2001 char buf[DATE_COLS];
2006 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
2007 date = timelen ? buf : NULL;
2009 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
2013 draw_author(struct view *view, const char *author)
2015 bool trim = opt_author_cols == 0 || opt_author_cols > 5 || !author;
2018 static char initials[10];
2021 #define is_initial_sep(c) (isspace(c) || ispunct(c) || (c) == '@')
2023 memset(initials, 0, sizeof(initials));
2024 for (pos = 0; *author && pos < opt_author_cols - 1; author++, pos++) {
2025 while (is_initial_sep(*author))
2027 strncpy(&initials[pos], author, sizeof(initials) - 1 - pos);
2028 while (*author && !is_initial_sep(author[1]))
2035 return draw_field(view, LINE_AUTHOR, author, opt_author_cols, trim);
2039 draw_view_line(struct view *view, unsigned int lineno)
2042 bool selected = (view->offset + lineno == view->lineno);
2044 assert(view_is_displayed(view));
2046 if (view->offset + lineno >= view->lines)
2049 line = &view->line[view->offset + lineno];
2051 wmove(view->win, lineno, 0);
2053 wclrtoeol(view->win);
2055 view->curline = line;
2056 view->curtype = LINE_NONE;
2057 line->selected = FALSE;
2058 line->dirty = line->cleareol = 0;
2061 set_view_attr(view, LINE_CURSOR);
2062 line->selected = TRUE;
2063 view->ops->select(view, line);
2066 return view->ops->draw(view, line, lineno);
2070 redraw_view_dirty(struct view *view)
2075 for (lineno = 0; lineno < view->height; lineno++) {
2076 if (view->offset + lineno >= view->lines)
2078 if (!view->line[view->offset + lineno].dirty)
2081 if (!draw_view_line(view, lineno))
2087 wnoutrefresh(view->win);
2091 redraw_view_from(struct view *view, int lineno)
2093 assert(0 <= lineno && lineno < view->height);
2096 view->can_hscroll = FALSE;
2098 for (; lineno < view->height; lineno++) {
2099 if (!draw_view_line(view, lineno))
2103 wnoutrefresh(view->win);
2107 redraw_view(struct view *view)
2110 redraw_view_from(view, 0);
2115 update_view_title(struct view *view)
2117 char buf[SIZEOF_STR];
2118 char state[SIZEOF_STR];
2119 size_t bufpos = 0, statelen = 0;
2121 assert(view_is_displayed(view));
2123 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2124 unsigned int view_lines = view->offset + view->height;
2125 unsigned int lines = view->lines
2126 ? MIN(view_lines, view->lines) * 100 / view->lines
2129 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2138 time_t secs = time(NULL) - view->start_time;
2140 /* Three git seconds are a long time ... */
2142 string_format_from(state, &statelen, " loading %lds", secs);
2145 string_format_from(buf, &bufpos, "[%s]", view->name);
2146 if (*view->ref && bufpos < view->width) {
2147 size_t refsize = strlen(view->ref);
2148 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2150 if (minsize < view->width)
2151 refsize = view->width - minsize + 7;
2152 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2155 if (statelen && bufpos < view->width) {
2156 string_format_from(buf, &bufpos, "%s", state);
2159 if (view == display[current_view])
2160 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2162 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2164 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2165 wclrtoeol(view->title);
2166 wnoutrefresh(view->title);
2170 resize_display(void)
2173 struct view *base = display[0];
2174 struct view *view = display[1] ? display[1] : display[0];
2176 /* Setup window dimensions */
2178 getmaxyx(stdscr, base->height, base->width);
2180 /* Make room for the status window. */
2184 /* Horizontal split. */
2185 view->width = base->width;
2186 view->height = SCALE_SPLIT_VIEW(base->height);
2187 base->height -= view->height;
2189 /* Make room for the title bar. */
2193 /* Make room for the title bar. */
2198 foreach_displayed_view (view, i) {
2200 view->win = newwin(view->height, 0, offset, 0);
2202 die("Failed to create %s view", view->name);
2204 scrollok(view->win, FALSE);
2206 view->title = newwin(1, 0, offset + view->height, 0);
2208 die("Failed to create title window");
2211 wresize(view->win, view->height, view->width);
2212 mvwin(view->win, offset, 0);
2213 mvwin(view->title, offset + view->height, 0);
2216 offset += view->height + 1;
2221 redraw_display(bool clear)
2226 foreach_displayed_view (view, i) {
2230 update_view_title(view);
2235 toggle_view_option(bool *option, const char *help)
2238 redraw_display(FALSE);
2239 report("%sabling %s", *option ? "En" : "Dis", help);
2246 /* Scrolling backend */
2248 do_scroll_view(struct view *view, int lines)
2250 bool redraw_current_line = FALSE;
2252 /* The rendering expects the new offset. */
2253 view->offset += lines;
2255 assert(0 <= view->offset && view->offset < view->lines);
2258 /* Move current line into the view. */
2259 if (view->lineno < view->offset) {
2260 view->lineno = view->offset;
2261 redraw_current_line = TRUE;
2262 } else if (view->lineno >= view->offset + view->height) {
2263 view->lineno = view->offset + view->height - 1;
2264 redraw_current_line = TRUE;
2267 assert(view->offset <= view->lineno && view->lineno < view->lines);
2269 /* Redraw the whole screen if scrolling is pointless. */
2270 if (view->height < ABS(lines)) {
2274 int line = lines > 0 ? view->height - lines : 0;
2275 int end = line + ABS(lines);
2277 scrollok(view->win, TRUE);
2278 wscrl(view->win, lines);
2279 scrollok(view->win, FALSE);
2281 while (line < end && draw_view_line(view, line))
2284 if (redraw_current_line)
2285 draw_view_line(view, view->lineno - view->offset);
2286 wnoutrefresh(view->win);
2289 view->has_scrolled = TRUE;
2293 /* Scroll frontend */
2295 scroll_view(struct view *view, enum request request)
2299 assert(view_is_displayed(view));
2302 case REQ_SCROLL_LEFT:
2303 if (view->yoffset == 0) {
2304 report("Cannot scroll beyond the first column");
2307 if (view->yoffset <= SCROLL_INTERVAL)
2310 view->yoffset -= SCROLL_INTERVAL;
2311 redraw_view_from(view, 0);
2314 case REQ_SCROLL_RIGHT:
2315 if (!view->can_hscroll) {
2316 report("Cannot scroll beyond the last column");
2319 view->yoffset += SCROLL_INTERVAL;
2323 case REQ_SCROLL_PAGE_DOWN:
2324 lines = view->height;
2325 case REQ_SCROLL_LINE_DOWN:
2326 if (view->offset + lines > view->lines)
2327 lines = view->lines - view->offset;
2329 if (lines == 0 || view->offset + view->height >= view->lines) {
2330 report("Cannot scroll beyond the last line");
2335 case REQ_SCROLL_PAGE_UP:
2336 lines = view->height;
2337 case REQ_SCROLL_LINE_UP:
2338 if (lines > view->offset)
2339 lines = view->offset;
2342 report("Cannot scroll beyond the first line");
2350 die("request %d not handled in switch", request);
2353 do_scroll_view(view, lines);
2358 move_view(struct view *view, enum request request)
2360 int scroll_steps = 0;
2364 case REQ_MOVE_FIRST_LINE:
2365 steps = -view->lineno;
2368 case REQ_MOVE_LAST_LINE:
2369 steps = view->lines - view->lineno - 1;
2372 case REQ_MOVE_PAGE_UP:
2373 steps = view->height > view->lineno
2374 ? -view->lineno : -view->height;
2377 case REQ_MOVE_PAGE_DOWN:
2378 steps = view->lineno + view->height >= view->lines
2379 ? view->lines - view->lineno - 1 : view->height;
2391 die("request %d not handled in switch", request);
2394 if (steps <= 0 && view->lineno == 0) {
2395 report("Cannot move beyond the first line");
2398 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2399 report("Cannot move beyond the last line");
2403 /* Move the current line */
2404 view->lineno += steps;
2405 assert(0 <= view->lineno && view->lineno < view->lines);
2407 /* Check whether the view needs to be scrolled */
2408 if (view->lineno < view->offset ||
2409 view->lineno >= view->offset + view->height) {
2410 scroll_steps = steps;
2411 if (steps < 0 && -steps > view->offset) {
2412 scroll_steps = -view->offset;
2414 } else if (steps > 0) {
2415 if (view->lineno == view->lines - 1 &&
2416 view->lines > view->height) {
2417 scroll_steps = view->lines - view->offset - 1;
2418 if (scroll_steps >= view->height)
2419 scroll_steps -= view->height - 1;
2424 if (!view_is_displayed(view)) {
2425 view->offset += scroll_steps;
2426 assert(0 <= view->offset && view->offset < view->lines);
2427 view->ops->select(view, &view->line[view->lineno]);
2431 /* Repaint the old "current" line if we be scrolling */
2432 if (ABS(steps) < view->height)
2433 draw_view_line(view, view->lineno - steps - view->offset);
2436 do_scroll_view(view, scroll_steps);
2440 /* Draw the current line */
2441 draw_view_line(view, view->lineno - view->offset);
2443 wnoutrefresh(view->win);
2452 static void search_view(struct view *view, enum request request);
2455 select_view_line(struct view *view, unsigned long lineno)
2457 if (lineno - view->offset >= view->height) {
2458 view->offset = lineno;
2459 view->lineno = lineno;
2460 if (view_is_displayed(view))
2464 unsigned long old_lineno = view->lineno - view->offset;
2466 view->lineno = lineno;
2467 if (view_is_displayed(view)) {
2468 draw_view_line(view, old_lineno);
2469 draw_view_line(view, view->lineno - view->offset);
2470 wnoutrefresh(view->win);
2472 view->ops->select(view, &view->line[view->lineno]);
2478 find_next(struct view *view, enum request request)
2480 unsigned long lineno = view->lineno;
2485 report("No previous search");
2487 search_view(view, request);
2497 case REQ_SEARCH_BACK:
2506 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2507 lineno += direction;
2509 /* Note, lineno is unsigned long so will wrap around in which case it
2510 * will become bigger than view->lines. */
2511 for (; lineno < view->lines; lineno += direction) {
2512 if (view->ops->grep(view, &view->line[lineno])) {
2513 select_view_line(view, lineno);
2514 report("Line %ld matches '%s'", lineno + 1, view->grep);
2519 report("No match found for '%s'", view->grep);
2523 search_view(struct view *view, enum request request)
2528 regfree(view->regex);
2531 view->regex = calloc(1, sizeof(*view->regex));
2536 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2537 if (regex_err != 0) {
2538 char buf[SIZEOF_STR] = "unknown error";
2540 regerror(regex_err, view->regex, buf, sizeof(buf));
2541 report("Search failed: %s", buf);
2545 string_copy(view->grep, opt_search);
2547 find_next(view, request);
2551 * Incremental updating
2555 reset_view(struct view *view)
2559 for (i = 0; i < view->lines; i++)
2560 free(view->line[i].data);
2563 view->p_offset = view->offset;
2564 view->p_yoffset = view->yoffset;
2565 view->p_lineno = view->lineno;
2572 view->line_alloc = 0;
2574 view->update_secs = 0;
2578 free_argv(const char *argv[])
2582 for (argc = 0; argv[argc]; argc++)
2583 free((void *) argv[argc]);
2587 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2589 char buf[SIZEOF_STR];
2591 bool noreplace = flags == FORMAT_NONE;
2593 free_argv(dst_argv);
2595 for (argc = 0; src_argv[argc]; argc++) {
2596 const char *arg = src_argv[argc];
2600 char *next = strstr(arg, "%(");
2601 int len = next - arg;
2604 if (!next || noreplace) {
2605 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2610 } else if (!prefixcmp(next, "%(directory)")) {
2613 } else if (!prefixcmp(next, "%(file)")) {
2616 } else if (!prefixcmp(next, "%(ref)")) {
2617 value = *opt_ref ? opt_ref : "HEAD";
2619 } else if (!prefixcmp(next, "%(head)")) {
2622 } else if (!prefixcmp(next, "%(commit)")) {
2625 } else if (!prefixcmp(next, "%(blob)")) {
2629 report("Unknown replacement: `%s`", next);
2633 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2636 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2639 dst_argv[argc] = strdup(buf);
2640 if (!dst_argv[argc])
2644 dst_argv[argc] = NULL;
2646 return src_argv[argc] == NULL;
2650 restore_view_position(struct view *view)
2652 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2655 /* Changing the view position cancels the restoring. */
2656 /* FIXME: Changing back to the first line is not detected. */
2657 if (view->offset != 0 || view->lineno != 0) {
2658 view->p_restore = FALSE;
2662 if (view->p_lineno >= view->lines) {
2663 view->p_lineno = view->lines > 0 ? view->lines - 1 : 0;
2664 if (view->p_offset >= view->p_lineno) {
2665 unsigned long half = view->height / 2;
2667 if (view->p_lineno > half)
2668 view->p_offset = view->p_lineno - half;
2674 if (view_is_displayed(view) &&
2675 view->offset != view->p_offset &&
2676 view->lineno != view->p_lineno)
2679 view->offset = view->p_offset;
2680 view->yoffset = view->p_yoffset;
2681 view->lineno = view->p_lineno;
2682 view->p_restore = FALSE;
2688 end_update(struct view *view, bool force)
2692 while (!view->ops->read(view, NULL))
2695 set_nonblocking_input(FALSE);
2697 kill_io(view->pipe);
2698 done_io(view->pipe);
2703 setup_update(struct view *view, const char *vid)
2705 set_nonblocking_input(TRUE);
2707 string_copy_rev(view->vid, vid);
2708 view->pipe = &view->io;
2709 view->start_time = time(NULL);
2713 prepare_update(struct view *view, const char *argv[], const char *dir,
2714 enum format_flags flags)
2717 end_update(view, TRUE);
2718 return init_io_rd(&view->io, argv, dir, flags);
2722 prepare_update_file(struct view *view, const char *name)
2725 end_update(view, TRUE);
2726 return io_open(&view->io, name);
2730 begin_update(struct view *view, bool refresh)
2733 end_update(view, TRUE);
2736 if (!start_io(&view->io))
2740 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2743 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2746 /* Put the current ref_* value to the view title ref
2747 * member. This is needed by the blob view. Most other
2748 * views sets it automatically after loading because the
2749 * first line is a commit line. */
2750 string_copy_rev(view->ref, view->id);
2753 setup_update(view, view->id);
2758 #define ITEM_CHUNK_SIZE 256
2760 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2762 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2763 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2765 if (mem == NULL || num_chunks != num_chunks_new) {
2766 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2767 mem = realloc(mem, *size * item_size);
2773 static struct line *
2774 realloc_lines(struct view *view, size_t line_size)
2776 size_t alloc = view->line_alloc;
2777 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2778 sizeof(*view->line));
2784 view->line_alloc = alloc;
2789 update_view(struct view *view)
2791 char out_buffer[BUFSIZ * 2];
2793 /* Clear the view and redraw everything since the tree sorting
2794 * might have rearranged things. */
2795 bool redraw = view->lines == 0;
2796 bool can_read = TRUE;
2801 if (!io_can_read(view->pipe)) {
2802 if (view->lines == 0) {
2803 time_t secs = time(NULL) - view->start_time;
2805 if (secs > 1 && secs > view->update_secs) {
2806 if (view->update_secs == 0)
2808 update_view_title(view);
2809 view->update_secs = secs;
2815 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2816 if (opt_iconv != ICONV_NONE) {
2817 ICONV_CONST char *inbuf = line;
2818 size_t inlen = strlen(line) + 1;
2820 char *outbuf = out_buffer;
2821 size_t outlen = sizeof(out_buffer);
2825 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2826 if (ret != (size_t) -1)
2830 if (!view->ops->read(view, line)) {
2831 report("Allocation failure");
2832 end_update(view, TRUE);
2838 unsigned long lines = view->lines;
2841 for (digits = 0; lines; digits++)
2844 /* Keep the displayed view in sync with line number scaling. */
2845 if (digits != view->digits) {
2846 view->digits = digits;
2847 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2852 if (io_error(view->pipe)) {
2853 report("Failed to read: %s", io_strerror(view->pipe));
2854 end_update(view, TRUE);
2856 } else if (io_eof(view->pipe)) {
2858 end_update(view, FALSE);
2861 if (restore_view_position(view))
2864 if (!view_is_displayed(view))
2868 redraw_view_from(view, 0);
2870 redraw_view_dirty(view);
2872 /* Update the title _after_ the redraw so that if the redraw picks up a
2873 * commit reference in view->ref it'll be available here. */
2874 update_view_title(view);
2878 static struct line *
2879 add_line_data(struct view *view, void *data, enum line_type type)
2883 if (!realloc_lines(view, view->lines + 1))
2886 line = &view->line[view->lines++];
2887 memset(line, 0, sizeof(*line));
2895 static struct line *
2896 add_line_text(struct view *view, const char *text, enum line_type type)
2898 char *data = text ? strdup(text) : NULL;
2900 return data ? add_line_data(view, data, type) : NULL;
2903 static struct line *
2904 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2906 char buf[SIZEOF_STR];
2909 va_start(args, fmt);
2910 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2914 return buf[0] ? add_line_text(view, buf, type) : NULL;
2922 OPEN_DEFAULT = 0, /* Use default view switching. */
2923 OPEN_SPLIT = 1, /* Split current view. */
2924 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2925 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2926 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2927 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2928 OPEN_PREPARED = 32, /* Open already prepared command. */
2932 open_view(struct view *prev, enum request request, enum open_flags flags)
2934 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2935 bool split = !!(flags & OPEN_SPLIT);
2936 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2937 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2938 struct view *view = VIEW(request);
2939 int nviews = displayed_views();
2940 struct view *base_view = display[0];
2942 if (view == prev && nviews == 1 && !reload) {
2943 report("Already in %s view", view->name);
2947 if (view->git_dir && !opt_git_dir[0]) {
2948 report("The %s view is disabled in pager view", view->name);
2956 } else if (!nomaximize) {
2957 /* Maximize the current view. */
2958 memset(display, 0, sizeof(display));
2960 display[current_view] = view;
2963 /* Resize the view when switching between split- and full-screen,
2964 * or when switching between two different full-screen views. */
2965 if (nviews != displayed_views() ||
2966 (nviews == 1 && base_view != display[0]))
2969 if (view->ops->open) {
2971 end_update(view, TRUE);
2972 if (!view->ops->open(view)) {
2973 report("Failed to load %s view", view->name);
2976 restore_view_position(view);
2978 } else if ((reload || strcmp(view->vid, view->id)) &&
2979 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2980 report("Failed to load %s view", view->name);
2984 if (split && prev->lineno - prev->offset >= prev->height) {
2985 /* Take the title line into account. */
2986 int lines = prev->lineno - prev->offset - prev->height + 1;
2988 /* Scroll the view that was split if the current line is
2989 * outside the new limited view. */
2990 do_scroll_view(prev, lines);
2993 if (prev && view != prev) {
2994 if (split && !backgrounded) {
2995 /* "Blur" the previous view. */
2996 update_view_title(prev);
2999 view->parent = prev;
3002 if (view->pipe && view->lines == 0) {
3003 /* Clear the old view and let the incremental updating refill
3006 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
3008 } else if (view_is_displayed(view)) {
3013 /* If the view is backgrounded the above calls to report()
3014 * won't redraw the view title. */
3016 update_view_title(view);
3020 open_external_viewer(const char *argv[], const char *dir)
3022 def_prog_mode(); /* save current tty modes */
3023 endwin(); /* restore original tty modes */
3024 run_io_fg(argv, dir);
3025 fprintf(stderr, "Press Enter to continue");
3028 redraw_display(TRUE);
3032 open_mergetool(const char *file)
3034 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
3036 open_external_viewer(mergetool_argv, opt_cdup);
3040 open_editor(bool from_root, const char *file)
3042 const char *editor_argv[] = { "vi", file, NULL };
3045 editor = getenv("GIT_EDITOR");
3046 if (!editor && *opt_editor)
3047 editor = opt_editor;
3049 editor = getenv("VISUAL");
3051 editor = getenv("EDITOR");
3055 editor_argv[0] = editor;
3056 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3060 open_run_request(enum request request)
3062 struct run_request *req = get_run_request(request);
3063 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3066 report("Unknown run request");
3070 if (format_argv(argv, req->argv, FORMAT_ALL))
3071 open_external_viewer(argv, NULL);
3076 * User request switch noodle
3080 view_driver(struct view *view, enum request request)
3084 if (request == REQ_NONE) {
3089 if (request > REQ_NONE) {
3090 open_run_request(request);
3091 /* FIXME: When all views can refresh always do this. */
3092 if (view == VIEW(REQ_VIEW_STATUS) ||
3093 view == VIEW(REQ_VIEW_MAIN) ||
3094 view == VIEW(REQ_VIEW_LOG) ||
3095 view == VIEW(REQ_VIEW_STAGE))
3096 request = REQ_REFRESH;
3101 if (view && view->lines) {
3102 request = view->ops->request(view, request, &view->line[view->lineno]);
3103 if (request == REQ_NONE)
3110 case REQ_MOVE_PAGE_UP:
3111 case REQ_MOVE_PAGE_DOWN:
3112 case REQ_MOVE_FIRST_LINE:
3113 case REQ_MOVE_LAST_LINE:
3114 move_view(view, request);
3117 case REQ_SCROLL_LEFT:
3118 case REQ_SCROLL_RIGHT:
3119 case REQ_SCROLL_LINE_DOWN:
3120 case REQ_SCROLL_LINE_UP:
3121 case REQ_SCROLL_PAGE_DOWN:
3122 case REQ_SCROLL_PAGE_UP:
3123 scroll_view(view, request);
3126 case REQ_VIEW_BLAME:
3128 report("No file chosen, press %s to open tree view",
3129 get_key(REQ_VIEW_TREE));
3132 open_view(view, request, OPEN_DEFAULT);
3137 report("No file chosen, press %s to open tree view",
3138 get_key(REQ_VIEW_TREE));
3141 open_view(view, request, OPEN_DEFAULT);
3144 case REQ_VIEW_PAGER:
3145 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3146 report("No pager content, press %s to run command from prompt",
3147 get_key(REQ_PROMPT));
3150 open_view(view, request, OPEN_DEFAULT);
3153 case REQ_VIEW_STAGE:
3154 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3155 report("No stage content, press %s to open the status view and choose file",
3156 get_key(REQ_VIEW_STATUS));
3159 open_view(view, request, OPEN_DEFAULT);
3162 case REQ_VIEW_STATUS:
3163 if (opt_is_inside_work_tree == FALSE) {
3164 report("The status view requires a working tree");
3167 open_view(view, request, OPEN_DEFAULT);
3175 open_view(view, request, OPEN_DEFAULT);
3180 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3182 if ((view == VIEW(REQ_VIEW_DIFF) &&
3183 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3184 (view == VIEW(REQ_VIEW_DIFF) &&
3185 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3186 (view == VIEW(REQ_VIEW_STAGE) &&
3187 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3188 (view == VIEW(REQ_VIEW_BLOB) &&
3189 view->parent == VIEW(REQ_VIEW_TREE))) {
3192 view = view->parent;
3193 line = view->lineno;
3194 move_view(view, request);
3195 if (view_is_displayed(view))
3196 update_view_title(view);
3197 if (line != view->lineno)
3198 view->ops->request(view, REQ_ENTER,
3199 &view->line[view->lineno]);
3202 move_view(view, request);
3208 int nviews = displayed_views();
3209 int next_view = (current_view + 1) % nviews;
3211 if (next_view == current_view) {
3212 report("Only one view is displayed");
3216 current_view = next_view;
3217 /* Blur out the title of the previous view. */
3218 update_view_title(view);
3223 report("Refreshing is not yet supported for the %s view", view->name);
3227 if (displayed_views() == 2)
3228 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3231 case REQ_TOGGLE_LINENO:
3232 toggle_view_option(&opt_line_number, "line numbers");
3235 case REQ_TOGGLE_DATE:
3236 toggle_view_option(&opt_date, "date display");
3239 case REQ_TOGGLE_AUTHOR:
3240 toggle_view_option(&opt_author, "author display");
3243 case REQ_TOGGLE_REV_GRAPH:
3244 toggle_view_option(&opt_rev_graph, "revision graph display");
3247 case REQ_TOGGLE_REFS:
3248 toggle_view_option(&opt_show_refs, "reference display");
3252 case REQ_SEARCH_BACK:
3253 search_view(view, request);
3258 find_next(view, request);
3261 case REQ_STOP_LOADING:
3262 for (i = 0; i < ARRAY_SIZE(views); i++) {
3265 report("Stopped loading the %s view", view->name),
3266 end_update(view, TRUE);
3270 case REQ_SHOW_VERSION:
3271 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3274 case REQ_SCREEN_REDRAW:
3275 redraw_display(TRUE);
3279 report("Nothing to edit");
3283 report("Nothing to enter");
3286 case REQ_VIEW_CLOSE:
3287 /* XXX: Mark closed views by letting view->parent point to the
3288 * view itself. Parents to closed view should never be
3291 view->parent->parent != view->parent) {
3292 memset(display, 0, sizeof(display));
3294 display[current_view] = view->parent;
3295 view->parent = view;
3297 redraw_display(FALSE);
3306 report("Unknown key, press 'h' for help");
3315 * View backend utilities
3318 /* Parse author lines where the name may be empty:
3319 * author <email@address.tld> 1138474660 +0100
3322 parse_author_line(char *ident, char *author, size_t authorsize, struct tm *tm)
3324 char *nameend = strchr(ident, '<');
3325 char *emailend = strchr(ident, '>');
3327 if (nameend && emailend)
3328 *nameend = *emailend = 0;
3329 ident = chomp_string(ident);
3332 ident = chomp_string(nameend + 1);
3337 string_ncopy_do(author, authorsize, ident, strlen(ident));
3339 /* Parse epoch and timezone */
3340 if (emailend && emailend[1] == ' ') {
3341 char *secs = emailend + 2;
3342 char *zone = strchr(secs, ' ');
3343 time_t time = (time_t) atol(secs);
3345 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
3349 tz = ('0' - zone[1]) * 60 * 60 * 10;
3350 tz += ('0' - zone[2]) * 60 * 60;
3351 tz += ('0' - zone[3]) * 60;
3352 tz += ('0' - zone[4]) * 60;
3360 gmtime_r(&time, tm);
3364 static enum input_status
3365 select_commit_parent_handler(void *data, char *buf, int c)
3367 size_t parents = *(size_t *) data;
3374 parent = atoi(buf) * 10;
3377 if (parent > parents)
3383 select_commit_parent(const char *id, char rev[SIZEOF_REV])
3385 char buf[SIZEOF_STR * 4];
3386 const char *revlist_argv[] = {
3387 "git", "rev-list", "-1", "--parents", id, NULL
3391 if (!run_io_buf(revlist_argv, buf, sizeof(buf)) ||
3392 !*chomp_string(buf) ||
3393 (parents = (strlen(buf) / 40) - 1) < 0) {
3394 report("Failed to get parent information");
3397 } else if (parents == 0) {
3398 report("The selected commit has no parents");
3403 char prompt[SIZEOF_STR];
3406 if (!string_format(prompt, "Which parent? [1..%d] ", parents))
3408 result = prompt_input(prompt, select_commit_parent_handler, &parents);
3411 parents = atoi(result);
3414 string_copy_rev(rev, &buf[41 * parents]);
3423 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3425 char text[SIZEOF_STR];
3427 if (opt_line_number && draw_lineno(view, lineno))
3430 string_expand(text, sizeof(text), line->data, opt_tab_size);
3431 draw_text(view, line->type, text, TRUE);
3436 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3438 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3439 char refbuf[SIZEOF_STR];
3442 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3443 ref = chomp_string(refbuf);
3448 /* This is the only fatal call, since it can "corrupt" the buffer. */
3449 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3456 add_pager_refs(struct view *view, struct line *line)
3458 char buf[SIZEOF_STR];
3459 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3461 size_t bufpos = 0, refpos = 0;
3462 const char *sep = "Refs: ";
3463 bool is_tag = FALSE;
3465 assert(line->type == LINE_COMMIT);
3467 refs = get_refs(commit_id);
3469 if (view == VIEW(REQ_VIEW_DIFF))
3470 goto try_add_describe_ref;
3475 struct ref *ref = refs[refpos];
3476 const char *fmt = ref->tag ? "%s[%s]" :
3477 ref->remote ? "%s<%s>" : "%s%s";
3479 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3484 } while (refs[refpos++]->next);
3486 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3487 try_add_describe_ref:
3488 /* Add <tag>-g<commit_id> "fake" reference. */
3489 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3496 add_line_text(view, buf, LINE_PP_REFS);
3500 pager_read(struct view *view, char *data)
3507 line = add_line_text(view, data, get_line_type(data));
3511 if (line->type == LINE_COMMIT &&
3512 (view == VIEW(REQ_VIEW_DIFF) ||
3513 view == VIEW(REQ_VIEW_LOG)))
3514 add_pager_refs(view, line);
3520 pager_request(struct view *view, enum request request, struct line *line)
3524 if (request != REQ_ENTER)
3527 if (line->type == LINE_COMMIT &&
3528 (view == VIEW(REQ_VIEW_LOG) ||
3529 view == VIEW(REQ_VIEW_PAGER))) {
3530 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3534 /* Always scroll the view even if it was split. That way
3535 * you can use Enter to scroll through the log view and
3536 * split open each commit diff. */
3537 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3539 /* FIXME: A minor workaround. Scrolling the view will call report("")
3540 * but if we are scrolling a non-current view this won't properly
3541 * update the view title. */
3543 update_view_title(view);
3549 pager_grep(struct view *view, struct line *line)
3552 char *text = line->data;
3557 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3564 pager_select(struct view *view, struct line *line)
3566 if (line->type == LINE_COMMIT) {
3567 char *text = (char *)line->data + STRING_SIZE("commit ");
3569 if (view != VIEW(REQ_VIEW_PAGER))
3570 string_copy_rev(view->ref, text);
3571 string_copy_rev(ref_commit, text);
3575 static struct view_ops pager_ops = {
3586 static const char *log_argv[SIZEOF_ARG] = {
3587 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3591 log_request(struct view *view, enum request request, struct line *line)
3596 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3599 return pager_request(view, request, line);
3603 static struct view_ops log_ops = {
3614 static const char *diff_argv[SIZEOF_ARG] = {
3615 "git", "show", "--pretty=fuller", "--no-color", "--root",
3616 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3619 static struct view_ops diff_ops = {
3635 help_open(struct view *view)
3637 char buf[SIZEOF_STR];
3641 if (view->lines > 0)
3644 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3646 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3649 if (req_info[i].request == REQ_NONE)
3652 if (!req_info[i].request) {
3653 add_line_text(view, "", LINE_DEFAULT);
3654 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3658 key = get_key(req_info[i].request);
3660 key = "(no key defined)";
3662 for (bufpos = 0; bufpos <= req_info[i].namelen; bufpos++) {
3663 buf[bufpos] = tolower(req_info[i].name[bufpos]);
3664 if (buf[bufpos] == '_')
3668 add_line_format(view, LINE_DEFAULT, " %-25s %-20s %s",
3669 key, buf, req_info[i].help);
3673 add_line_text(view, "", LINE_DEFAULT);
3674 add_line_text(view, "External commands:", LINE_DEFAULT);
3677 for (i = 0; i < run_requests; i++) {
3678 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3685 key = get_key_name(req->key);
3687 key = "(no key defined)";
3689 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3690 if (!string_format_from(buf, &bufpos, "%s%s",
3691 argc ? " " : "", req->argv[argc]))
3694 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3695 keymap_table[req->keymap].name, key, buf);
3701 static struct view_ops help_ops = {
3717 struct tree_stack_entry {
3718 struct tree_stack_entry *prev; /* Entry below this in the stack */
3719 unsigned long lineno; /* Line number to restore */
3720 char *name; /* Position of name in opt_path */
3723 /* The top of the path stack. */
3724 static struct tree_stack_entry *tree_stack = NULL;
3725 unsigned long tree_lineno = 0;
3728 pop_tree_stack_entry(void)
3730 struct tree_stack_entry *entry = tree_stack;
3732 tree_lineno = entry->lineno;
3734 tree_stack = entry->prev;
3739 push_tree_stack_entry(const char *name, unsigned long lineno)
3741 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3742 size_t pathlen = strlen(opt_path);
3747 entry->prev = tree_stack;
3748 entry->name = opt_path + pathlen;
3751 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3752 pop_tree_stack_entry();
3756 /* Move the current line to the first tree entry. */
3758 entry->lineno = lineno;
3761 /* Parse output from git-ls-tree(1):
3763 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3764 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3765 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3766 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3769 #define SIZEOF_TREE_ATTR \
3770 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3772 #define SIZEOF_TREE_MODE \
3773 STRING_SIZE("100644 ")
3775 #define TREE_ID_OFFSET \
3776 STRING_SIZE("100644 blob ")
3779 char id[SIZEOF_REV];
3781 struct tm time; /* Date from the author ident. */
3782 char author[75]; /* Author of the commit. */
3787 tree_path(struct line *line)
3789 return ((struct tree_entry *) line->data)->name;
3794 tree_compare_entry(struct line *line1, struct line *line2)
3796 if (line1->type != line2->type)
3797 return line1->type == LINE_TREE_DIR ? -1 : 1;
3798 return strcmp(tree_path(line1), tree_path(line2));
3801 static struct line *
3802 tree_entry(struct view *view, enum line_type type, const char *path,
3803 const char *mode, const char *id)
3805 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3806 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3808 if (!entry || !line) {
3813 strncpy(entry->name, path, strlen(path));
3815 entry->mode = strtoul(mode, NULL, 8);
3817 string_copy_rev(entry->id, id);
3823 tree_read_date(struct view *view, char *text, bool *read_date)
3825 static char author_name[SIZEOF_STR];
3826 static struct tm author_time;
3828 if (!text && *read_date) {
3833 char *path = *opt_path ? opt_path : ".";
3834 /* Find next entry to process */
3835 const char *log_file[] = {
3836 "git", "log", "--no-color", "--pretty=raw",
3837 "--cc", "--raw", view->id, "--", path, NULL
3842 tree_entry(view, LINE_TREE_PARENT, opt_path, NULL, NULL);
3843 report("Tree is empty");
3847 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3848 report("Failed to load tree data");
3852 done_io(view->pipe);
3857 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3858 parse_author_line(text + STRING_SIZE("author "),
3859 author_name, sizeof(author_name), &author_time);
3861 } else if (*text == ':') {
3863 size_t annotated = 1;
3866 pos = strchr(text, '\t');
3870 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3871 text += strlen(opt_prefix);
3872 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3873 text += strlen(opt_path);
3874 pos = strchr(text, '/');
3878 for (i = 1; i < view->lines; i++) {
3879 struct line *line = &view->line[i];
3880 struct tree_entry *entry = line->data;
3882 annotated += !!*entry->author;
3883 if (*entry->author || strcmp(entry->name, text))
3886 string_copy(entry->author, author_name);
3887 memcpy(&entry->time, &author_time, sizeof(entry->time));
3892 if (annotated == view->lines)
3893 kill_io(view->pipe);
3899 tree_read(struct view *view, char *text)
3901 static bool read_date = FALSE;
3902 struct tree_entry *data;
3903 struct line *entry, *line;
3904 enum line_type type;
3905 size_t textlen = text ? strlen(text) : 0;
3906 char *path = text + SIZEOF_TREE_ATTR;
3908 if (read_date || !text)
3909 return tree_read_date(view, text, &read_date);
3911 if (textlen <= SIZEOF_TREE_ATTR)
3913 if (view->lines == 0 &&
3914 !tree_entry(view, LINE_TREE_PARENT, opt_path, NULL, NULL))
3917 /* Strip the path part ... */
3919 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3920 size_t striplen = strlen(opt_path);
3922 if (pathlen > striplen)
3923 memmove(path, path + striplen,
3924 pathlen - striplen + 1);
3926 /* Insert "link" to parent directory. */
3927 if (view->lines == 1 &&
3928 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3932 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
3933 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3938 /* Skip "Directory ..." and ".." line. */
3939 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3940 if (tree_compare_entry(line, entry) <= 0)
3943 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3947 for (; line <= entry; line++)
3948 line->dirty = line->cleareol = 1;
3952 if (tree_lineno > view->lineno) {
3953 view->lineno = tree_lineno;
3961 tree_draw(struct view *view, struct line *line, unsigned int lineno)
3963 struct tree_entry *entry = line->data;
3965 if (line->type == LINE_TREE_PARENT) {
3966 if (draw_text(view, line->type, "Directory path /", TRUE))
3969 char mode[11] = "-r--r--r--";
3971 if (S_ISDIR(entry->mode)) {
3972 mode[3] = mode[6] = mode[9] = 'x';
3975 if (S_ISLNK(entry->mode))
3977 if (entry->mode & S_IWUSR)
3979 if (entry->mode & S_IXUSR)
3981 if (entry->mode & S_IXGRP)
3983 if (entry->mode & S_IXOTH)
3985 if (draw_field(view, LINE_TREE_MODE, mode, 11, TRUE))
3988 if (opt_author && draw_author(view, entry->author))
3991 if (opt_date && draw_date(view, *entry->author ? &entry->time : NULL))
3994 if (draw_text(view, line->type, entry->name, TRUE))
4002 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
4003 int fd = mkstemp(file);
4006 report("Failed to create temporary file");
4007 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
4008 report("Failed to save blob data to file");
4010 open_editor(FALSE, file);
4016 tree_request(struct view *view, enum request request, struct line *line)
4018 enum open_flags flags;
4021 case REQ_VIEW_BLAME:
4022 if (line->type != LINE_TREE_FILE) {
4023 report("Blame only supported for files");
4027 string_copy(opt_ref, view->vid);
4031 if (line->type != LINE_TREE_FILE) {
4032 report("Edit only supported for files");
4033 } else if (!is_head_commit(view->vid)) {
4036 open_editor(TRUE, opt_file);
4042 /* quit view if at top of tree */
4043 return REQ_VIEW_CLOSE;
4046 line = &view->line[1];
4056 /* Cleanup the stack if the tree view is at a different tree. */
4057 while (!*opt_path && tree_stack)
4058 pop_tree_stack_entry();
4060 switch (line->type) {
4062 /* Depending on whether it is a subdir or parent (updir?) link
4063 * mangle the path buffer. */
4064 if (line == &view->line[1] && *opt_path) {
4065 pop_tree_stack_entry();
4068 const char *basename = tree_path(line);
4070 push_tree_stack_entry(basename, view->lineno);
4073 /* Trees and subtrees share the same ID, so they are not not
4074 * unique like blobs. */
4075 flags = OPEN_RELOAD;
4076 request = REQ_VIEW_TREE;
4079 case LINE_TREE_FILE:
4080 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4081 request = REQ_VIEW_BLOB;
4088 open_view(view, request, flags);
4089 if (request == REQ_VIEW_TREE)
4090 view->lineno = tree_lineno;
4096 tree_select(struct view *view, struct line *line)
4098 struct tree_entry *entry = line->data;
4100 if (line->type == LINE_TREE_FILE) {
4101 string_copy_rev(ref_blob, entry->id);
4102 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4104 } else if (line->type != LINE_TREE_DIR) {
4108 string_copy_rev(view->ref, entry->id);
4111 static const char *tree_argv[SIZEOF_ARG] = {
4112 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4115 static struct view_ops tree_ops = {
4127 blob_read(struct view *view, char *line)
4131 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4135 blob_request(struct view *view, enum request request, struct line *line)
4142 return pager_request(view, request, line);
4146 static const char *blob_argv[SIZEOF_ARG] = {
4147 "git", "cat-file", "blob", "%(blob)", NULL
4150 static struct view_ops blob_ops = {
4164 * Loading the blame view is a two phase job:
4166 * 1. File content is read either using opt_file from the
4167 * filesystem or using git-cat-file.
4168 * 2. Then blame information is incrementally added by
4169 * reading output from git-blame.
4172 static const char *blame_head_argv[] = {
4173 "git", "blame", "--incremental", "--", "%(file)", NULL
4176 static const char *blame_ref_argv[] = {
4177 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4180 static const char *blame_cat_file_argv[] = {
4181 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4184 struct blame_commit {
4185 char id[SIZEOF_REV]; /* SHA1 ID. */
4186 char title[128]; /* First line of the commit message. */
4187 char author[75]; /* Author of the commit. */
4188 struct tm time; /* Date from the author ident. */
4189 char filename[128]; /* Name of file. */
4190 bool has_previous; /* Was a "previous" line detected. */
4194 struct blame_commit *commit;
4199 blame_open(struct view *view)
4201 if (*opt_ref || !io_open(&view->io, opt_file)) {
4202 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4206 setup_update(view, opt_file);
4207 string_format(view->ref, "%s ...", opt_file);
4212 static struct blame_commit *
4213 get_blame_commit(struct view *view, const char *id)
4217 for (i = 0; i < view->lines; i++) {
4218 struct blame *blame = view->line[i].data;
4223 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4224 return blame->commit;
4228 struct blame_commit *commit = calloc(1, sizeof(*commit));
4231 string_ncopy(commit->id, id, SIZEOF_REV);
4237 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4239 const char *pos = *posref;
4242 pos = strchr(pos + 1, ' ');
4243 if (!pos || !isdigit(pos[1]))
4245 *number = atoi(pos + 1);
4246 if (*number < min || *number > max)
4253 static struct blame_commit *
4254 parse_blame_commit(struct view *view, const char *text, int *blamed)
4256 struct blame_commit *commit;
4257 struct blame *blame;
4258 const char *pos = text + SIZEOF_REV - 1;
4262 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
4265 if (!parse_number(&pos, &lineno, 1, view->lines) ||
4266 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4269 commit = get_blame_commit(view, text);
4275 struct line *line = &view->line[lineno + group - 1];
4278 blame->commit = commit;
4286 blame_read_file(struct view *view, const char *line, bool *read_file)
4289 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4292 if (view->lines == 0 && !view->parent)
4293 die("No blame exist for %s", view->vid);
4295 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4296 report("Failed to load blame data");
4300 done_io(view->pipe);
4306 size_t linelen = string_expand_length(line, opt_tab_size);
4307 struct blame *blame = malloc(sizeof(*blame) + linelen);
4312 blame->commit = NULL;
4313 string_expand(blame->text, linelen + 1, line, opt_tab_size);
4314 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4319 match_blame_header(const char *name, char **line)
4321 size_t namelen = strlen(name);
4322 bool matched = !strncmp(name, *line, namelen);
4331 blame_read(struct view *view, char *line)
4333 static struct blame_commit *commit = NULL;
4334 static int blamed = 0;
4335 static time_t author_time;
4336 static bool read_file = TRUE;
4339 return blame_read_file(view, line, &read_file);
4346 string_format(view->ref, "%s", view->vid);
4347 if (view_is_displayed(view)) {
4348 update_view_title(view);
4349 redraw_view_from(view, 0);
4355 commit = parse_blame_commit(view, line, &blamed);
4356 string_format(view->ref, "%s %2d%%", view->vid,
4357 view->lines ? blamed * 100 / view->lines : 0);
4359 } else if (match_blame_header("author ", &line)) {
4360 string_ncopy(commit->author, line, strlen(line));
4362 } else if (match_blame_header("author-time ", &line)) {
4363 author_time = (time_t) atol(line);
4365 } else if (match_blame_header("author-tz ", &line)) {
4368 tz = ('0' - line[1]) * 60 * 60 * 10;
4369 tz += ('0' - line[2]) * 60 * 60;
4370 tz += ('0' - line[3]) * 60;
4371 tz += ('0' - line[4]) * 60;
4377 gmtime_r(&author_time, &commit->time);
4379 } else if (match_blame_header("summary ", &line)) {
4380 string_ncopy(commit->title, line, strlen(line));
4382 } else if (match_blame_header("previous ", &line)) {
4383 commit->has_previous = TRUE;
4385 } else if (match_blame_header("filename ", &line)) {
4386 string_ncopy(commit->filename, line, strlen(line));
4394 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4396 struct blame *blame = line->data;
4397 struct tm *time = NULL;
4398 const char *id = NULL, *author = NULL;
4400 if (blame->commit && *blame->commit->filename) {
4401 id = blame->commit->id;
4402 author = blame->commit->author;
4403 time = &blame->commit->time;
4406 if (opt_date && draw_date(view, time))
4409 if (opt_author && draw_author(view, author))
4412 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4415 if (draw_lineno(view, lineno))
4418 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4423 check_blame_commit(struct blame *blame)
4426 report("Commit data not loaded yet");
4427 else if (!strcmp(blame->commit->id, NULL_ID))
4428 report("No commit exist for the selected line");
4435 blame_request(struct view *view, enum request request, struct line *line)
4437 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4438 struct blame *blame = line->data;
4441 case REQ_VIEW_BLAME:
4442 if (check_blame_commit(blame)) {
4443 string_copy(opt_ref, blame->commit->id);
4444 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4449 if (check_blame_commit(blame) &&
4450 select_commit_parent(blame->commit->id, opt_ref))
4451 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4455 if (!blame->commit) {
4456 report("No commit loaded yet");
4460 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4461 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4464 if (!strcmp(blame->commit->id, NULL_ID)) {
4465 struct view *diff = VIEW(REQ_VIEW_DIFF);
4466 const char *diff_index_argv[] = {
4467 "git", "diff-index", "--root", "--patch-with-stat",
4468 "-C", "-M", "HEAD", "--", view->vid, NULL
4471 if (!blame->commit->has_previous) {
4472 diff_index_argv[1] = "diff";
4473 diff_index_argv[2] = "--no-color";
4474 diff_index_argv[6] = "--";
4475 diff_index_argv[7] = "/dev/null";
4478 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4479 report("Failed to allocate diff command");
4482 flags |= OPEN_PREPARED;
4485 open_view(view, REQ_VIEW_DIFF, flags);
4486 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4487 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4498 blame_grep(struct view *view, struct line *line)
4500 struct blame *blame = line->data;
4501 struct blame_commit *commit = blame->commit;
4504 #define MATCH(text, on) \
4505 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4508 char buf[DATE_COLS + 1];
4510 if (MATCH(commit->title, 1) ||
4511 MATCH(commit->author, opt_author) ||
4512 MATCH(commit->id, opt_date))
4515 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4520 return MATCH(blame->text, 1);
4526 blame_select(struct view *view, struct line *line)
4528 struct blame *blame = line->data;
4529 struct blame_commit *commit = blame->commit;
4534 if (!strcmp(commit->id, NULL_ID))
4535 string_ncopy(ref_commit, "HEAD", 4);
4537 string_copy_rev(ref_commit, commit->id);
4540 static struct view_ops blame_ops = {
4559 char rev[SIZEOF_REV];
4560 char name[SIZEOF_STR];
4564 char rev[SIZEOF_REV];
4565 char name[SIZEOF_STR];
4569 static char status_onbranch[SIZEOF_STR];
4570 static struct status stage_status;
4571 static enum line_type stage_line_type;
4572 static size_t stage_chunks;
4573 static int *stage_chunk;
4575 /* This should work even for the "On branch" line. */
4577 status_has_none(struct view *view, struct line *line)
4579 return line < view->line + view->lines && !line[1].data;
4582 /* Get fields from the diff line:
4583 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4586 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4588 const char *old_mode = buf + 1;
4589 const char *new_mode = buf + 8;
4590 const char *old_rev = buf + 15;
4591 const char *new_rev = buf + 56;
4592 const char *status = buf + 97;
4595 old_mode[-1] != ':' ||
4596 new_mode[-1] != ' ' ||
4597 old_rev[-1] != ' ' ||
4598 new_rev[-1] != ' ' ||
4602 file->status = *status;
4604 string_copy_rev(file->old.rev, old_rev);
4605 string_copy_rev(file->new.rev, new_rev);
4607 file->old.mode = strtoul(old_mode, NULL, 8);
4608 file->new.mode = strtoul(new_mode, NULL, 8);
4610 file->old.name[0] = file->new.name[0] = 0;
4616 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4618 struct status *unmerged = NULL;
4622 if (!run_io(&io, argv, NULL, IO_RD))
4625 add_line_data(view, NULL, type);
4627 while ((buf = io_get(&io, 0, TRUE))) {
4628 struct status *file = unmerged;
4631 file = calloc(1, sizeof(*file));
4632 if (!file || !add_line_data(view, file, type))
4636 /* Parse diff info part. */
4638 file->status = status;
4640 string_copy(file->old.rev, NULL_ID);
4642 } else if (!file->status || file == unmerged) {
4643 if (!status_get_diff(file, buf, strlen(buf)))
4646 buf = io_get(&io, 0, TRUE);
4650 /* Collapse all 'M'odified entries that follow a
4651 * associated 'U'nmerged entry. */
4652 if (unmerged == file) {
4653 unmerged->status = 'U';
4655 } else if (file->status == 'U') {
4660 /* Grab the old name for rename/copy. */
4661 if (!*file->old.name &&
4662 (file->status == 'R' || file->status == 'C')) {
4663 string_ncopy(file->old.name, buf, strlen(buf));
4665 buf = io_get(&io, 0, TRUE);
4670 /* git-ls-files just delivers a NUL separated list of
4671 * file names similar to the second half of the
4672 * git-diff-* output. */
4673 string_ncopy(file->new.name, buf, strlen(buf));
4674 if (!*file->old.name)
4675 string_copy(file->old.name, file->new.name);
4679 if (io_error(&io)) {
4685 if (!view->line[view->lines - 1].data)
4686 add_line_data(view, NULL, LINE_STAT_NONE);
4692 /* Don't show unmerged entries in the staged section. */
4693 static const char *status_diff_index_argv[] = {
4694 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4695 "--cached", "-M", "HEAD", NULL
4698 static const char *status_diff_files_argv[] = {
4699 "git", "diff-files", "-z", NULL
4702 static const char *status_list_other_argv[] = {
4703 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4706 static const char *status_list_no_head_argv[] = {
4707 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4710 static const char *update_index_argv[] = {
4711 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4714 /* Restore the previous line number to stay in the context or select a
4715 * line with something that can be updated. */
4717 status_restore(struct view *view)
4719 if (view->p_lineno >= view->lines)
4720 view->p_lineno = view->lines - 1;
4721 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4723 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4726 /* If the above fails, always skip the "On branch" line. */
4727 if (view->p_lineno < view->lines)
4728 view->lineno = view->p_lineno;
4732 if (view->lineno < view->offset)
4733 view->offset = view->lineno;
4734 else if (view->offset + view->height <= view->lineno)
4735 view->offset = view->lineno - view->height + 1;
4737 view->p_restore = FALSE;
4740 /* First parse staged info using git-diff-index(1), then parse unstaged
4741 * info using git-diff-files(1), and finally untracked files using
4742 * git-ls-files(1). */
4744 status_open(struct view *view)
4748 add_line_data(view, NULL, LINE_STAT_HEAD);
4749 if (is_initial_commit())
4750 string_copy(status_onbranch, "Initial commit");
4751 else if (!*opt_head)
4752 string_copy(status_onbranch, "Not currently on any branch");
4753 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4756 run_io_bg(update_index_argv);
4758 if (is_initial_commit()) {
4759 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4761 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4765 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4766 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4769 /* Restore the exact position or use the specialized restore
4771 if (!view->p_restore)
4772 status_restore(view);
4777 status_draw(struct view *view, struct line *line, unsigned int lineno)
4779 struct status *status = line->data;
4780 enum line_type type;
4784 switch (line->type) {
4785 case LINE_STAT_STAGED:
4786 type = LINE_STAT_SECTION;
4787 text = "Changes to be committed:";
4790 case LINE_STAT_UNSTAGED:
4791 type = LINE_STAT_SECTION;
4792 text = "Changed but not updated:";
4795 case LINE_STAT_UNTRACKED:
4796 type = LINE_STAT_SECTION;
4797 text = "Untracked files:";
4800 case LINE_STAT_NONE:
4801 type = LINE_DEFAULT;
4802 text = " (no files)";
4805 case LINE_STAT_HEAD:
4806 type = LINE_STAT_HEAD;
4807 text = status_onbranch;
4814 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4816 buf[0] = status->status;
4817 if (draw_text(view, line->type, buf, TRUE))
4819 type = LINE_DEFAULT;
4820 text = status->new.name;
4823 draw_text(view, type, text, TRUE);
4828 status_enter(struct view *view, struct line *line)
4830 struct status *status = line->data;
4831 const char *oldpath = status ? status->old.name : NULL;
4832 /* Diffs for unmerged entries are empty when passing the new
4833 * path, so leave it empty. */
4834 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4836 enum open_flags split;
4837 struct view *stage = VIEW(REQ_VIEW_STAGE);
4839 if (line->type == LINE_STAT_NONE ||
4840 (!status && line[1].type == LINE_STAT_NONE)) {
4841 report("No file to diff");
4845 switch (line->type) {
4846 case LINE_STAT_STAGED:
4847 if (is_initial_commit()) {
4848 const char *no_head_diff_argv[] = {
4849 "git", "diff", "--no-color", "--patch-with-stat",
4850 "--", "/dev/null", newpath, NULL
4853 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4856 const char *index_show_argv[] = {
4857 "git", "diff-index", "--root", "--patch-with-stat",
4858 "-C", "-M", "--cached", "HEAD", "--",
4859 oldpath, newpath, NULL
4862 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4867 info = "Staged changes to %s";
4869 info = "Staged changes";
4872 case LINE_STAT_UNSTAGED:
4874 const char *files_show_argv[] = {
4875 "git", "diff-files", "--root", "--patch-with-stat",
4876 "-C", "-M", "--", oldpath, newpath, NULL
4879 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4882 info = "Unstaged changes to %s";
4884 info = "Unstaged changes";
4887 case LINE_STAT_UNTRACKED:
4889 report("No file to show");
4893 if (!suffixcmp(status->new.name, -1, "/")) {
4894 report("Cannot display a directory");
4898 if (!prepare_update_file(stage, newpath))
4900 info = "Untracked file %s";
4903 case LINE_STAT_HEAD:
4907 die("line type %d not handled in switch", line->type);
4910 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4911 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
4912 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4914 stage_status = *status;
4916 memset(&stage_status, 0, sizeof(stage_status));
4919 stage_line_type = line->type;
4921 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4928 status_exists(struct status *status, enum line_type type)
4930 struct view *view = VIEW(REQ_VIEW_STATUS);
4931 unsigned long lineno;
4933 for (lineno = 0; lineno < view->lines; lineno++) {
4934 struct line *line = &view->line[lineno];
4935 struct status *pos = line->data;
4937 if (line->type != type)
4939 if (!pos && (!status || !status->status) && line[1].data) {
4940 select_view_line(view, lineno);
4943 if (pos && !strcmp(status->new.name, pos->new.name)) {
4944 select_view_line(view, lineno);
4954 status_update_prepare(struct io *io, enum line_type type)
4956 const char *staged_argv[] = {
4957 "git", "update-index", "-z", "--index-info", NULL
4959 const char *others_argv[] = {
4960 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4964 case LINE_STAT_STAGED:
4965 return run_io(io, staged_argv, opt_cdup, IO_WR);
4967 case LINE_STAT_UNSTAGED:
4968 return run_io(io, others_argv, opt_cdup, IO_WR);
4970 case LINE_STAT_UNTRACKED:
4971 return run_io(io, others_argv, NULL, IO_WR);
4974 die("line type %d not handled in switch", type);
4980 status_update_write(struct io *io, struct status *status, enum line_type type)
4982 char buf[SIZEOF_STR];
4986 case LINE_STAT_STAGED:
4987 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4990 status->old.name, 0))
4994 case LINE_STAT_UNSTAGED:
4995 case LINE_STAT_UNTRACKED:
4996 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
5001 die("line type %d not handled in switch", type);
5004 return io_write(io, buf, bufsize);
5008 status_update_file(struct status *status, enum line_type type)
5013 if (!status_update_prepare(&io, type))
5016 result = status_update_write(&io, status, type);
5022 status_update_files(struct view *view, struct line *line)
5026 struct line *pos = view->line + view->lines;
5030 if (!status_update_prepare(&io, line->type))
5033 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5036 for (file = 0, done = 0; result && file < files; line++, file++) {
5037 int almost_done = file * 100 / files;
5039 if (almost_done > done) {
5041 string_format(view->ref, "updating file %u of %u (%d%% done)",
5043 update_view_title(view);
5045 result = status_update_write(&io, line->data, line->type);
5053 status_update(struct view *view)
5055 struct line *line = &view->line[view->lineno];
5057 assert(view->lines);
5060 /* This should work even for the "On branch" line. */
5061 if (line < view->line + view->lines && !line[1].data) {
5062 report("Nothing to update");
5066 if (!status_update_files(view, line + 1)) {
5067 report("Failed to update file status");
5071 } else if (!status_update_file(line->data, line->type)) {
5072 report("Failed to update file status");
5080 status_revert(struct status *status, enum line_type type, bool has_none)
5082 if (!status || type != LINE_STAT_UNSTAGED) {
5083 if (type == LINE_STAT_STAGED) {
5084 report("Cannot revert changes to staged files");
5085 } else if (type == LINE_STAT_UNTRACKED) {
5086 report("Cannot revert changes to untracked files");
5087 } else if (has_none) {
5088 report("Nothing to revert");
5090 report("Cannot revert changes to multiple files");
5095 char mode[10] = "100644";
5096 const char *reset_argv[] = {
5097 "git", "update-index", "--cacheinfo", mode,
5098 status->old.rev, status->old.name, NULL
5100 const char *checkout_argv[] = {
5101 "git", "checkout", "--", status->old.name, NULL
5104 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5106 string_format(mode, "%o", status->old.mode);
5107 return (status->status != 'U' || run_io_fg(reset_argv, opt_cdup)) &&
5108 run_io_fg(checkout_argv, opt_cdup);
5113 status_request(struct view *view, enum request request, struct line *line)
5115 struct status *status = line->data;
5118 case REQ_STATUS_UPDATE:
5119 if (!status_update(view))
5123 case REQ_STATUS_REVERT:
5124 if (!status_revert(status, line->type, status_has_none(view, line)))
5128 case REQ_STATUS_MERGE:
5129 if (!status || status->status != 'U') {
5130 report("Merging only possible for files with unmerged status ('U').");
5133 open_mergetool(status->new.name);
5139 if (status->status == 'D') {
5140 report("File has been deleted.");
5144 open_editor(status->status != '?', status->new.name);
5147 case REQ_VIEW_BLAME:
5149 string_copy(opt_file, status->new.name);
5155 /* After returning the status view has been split to
5156 * show the stage view. No further reloading is
5158 status_enter(view, line);
5162 /* Simply reload the view. */
5169 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5175 status_select(struct view *view, struct line *line)
5177 struct status *status = line->data;
5178 char file[SIZEOF_STR] = "all files";
5182 if (status && !string_format(file, "'%s'", status->new.name))
5185 if (!status && line[1].type == LINE_STAT_NONE)
5188 switch (line->type) {
5189 case LINE_STAT_STAGED:
5190 text = "Press %s to unstage %s for commit";
5193 case LINE_STAT_UNSTAGED:
5194 text = "Press %s to stage %s for commit";
5197 case LINE_STAT_UNTRACKED:
5198 text = "Press %s to stage %s for addition";
5201 case LINE_STAT_HEAD:
5202 case LINE_STAT_NONE:
5203 text = "Nothing to update";
5207 die("line type %d not handled in switch", line->type);
5210 if (status && status->status == 'U') {
5211 text = "Press %s to resolve conflict in %s";
5212 key = get_key(REQ_STATUS_MERGE);
5215 key = get_key(REQ_STATUS_UPDATE);
5218 string_format(view->ref, text, key, file);
5222 status_grep(struct view *view, struct line *line)
5224 struct status *status = line->data;
5225 enum { S_STATUS, S_NAME, S_END } state;
5232 for (state = S_STATUS; state < S_END; state++) {
5236 case S_NAME: text = status->new.name; break;
5238 buf[0] = status->status;
5246 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5253 static struct view_ops status_ops = {
5266 stage_diff_write(struct io *io, struct line *line, struct line *end)
5268 while (line < end) {
5269 if (!io_write(io, line->data, strlen(line->data)) ||
5270 !io_write(io, "\n", 1))
5273 if (line->type == LINE_DIFF_CHUNK ||
5274 line->type == LINE_DIFF_HEADER)
5281 static struct line *
5282 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5284 for (; view->line < line; line--)
5285 if (line->type == type)
5292 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5294 const char *apply_argv[SIZEOF_ARG] = {
5295 "git", "apply", "--whitespace=nowarn", NULL
5297 struct line *diff_hdr;
5301 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5306 apply_argv[argc++] = "--cached";
5307 if (revert || stage_line_type == LINE_STAT_STAGED)
5308 apply_argv[argc++] = "-R";
5309 apply_argv[argc++] = "-";
5310 apply_argv[argc++] = NULL;
5311 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5314 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5315 !stage_diff_write(&io, chunk, view->line + view->lines))
5319 run_io_bg(update_index_argv);
5321 return chunk ? TRUE : FALSE;
5325 stage_update(struct view *view, struct line *line)
5327 struct line *chunk = NULL;
5329 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5330 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5333 if (!stage_apply_chunk(view, chunk, FALSE)) {
5334 report("Failed to apply chunk");
5338 } else if (!stage_status.status) {
5339 view = VIEW(REQ_VIEW_STATUS);
5341 for (line = view->line; line < view->line + view->lines; line++)
5342 if (line->type == stage_line_type)
5345 if (!status_update_files(view, line + 1)) {
5346 report("Failed to update files");
5350 } else if (!status_update_file(&stage_status, stage_line_type)) {
5351 report("Failed to update file");
5359 stage_revert(struct view *view, struct line *line)
5361 struct line *chunk = NULL;
5363 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5364 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5367 if (!prompt_yesno("Are you sure you want to revert changes?"))
5370 if (!stage_apply_chunk(view, chunk, TRUE)) {
5371 report("Failed to revert chunk");
5377 return status_revert(stage_status.status ? &stage_status : NULL,
5378 stage_line_type, FALSE);
5384 stage_next(struct view *view, struct line *line)
5388 if (!stage_chunks) {
5389 static size_t alloc = 0;
5392 for (line = view->line; line < view->line + view->lines; line++) {
5393 if (line->type != LINE_DIFF_CHUNK)
5396 tmp = realloc_items(stage_chunk, &alloc,
5397 stage_chunks, sizeof(*tmp));
5399 report("Allocation failure");
5404 stage_chunk[stage_chunks++] = line - view->line;
5408 for (i = 0; i < stage_chunks; i++) {
5409 if (stage_chunk[i] > view->lineno) {
5410 do_scroll_view(view, stage_chunk[i] - view->lineno);
5411 report("Chunk %d of %d", i + 1, stage_chunks);
5416 report("No next chunk found");
5420 stage_request(struct view *view, enum request request, struct line *line)
5423 case REQ_STATUS_UPDATE:
5424 if (!stage_update(view, line))
5428 case REQ_STATUS_REVERT:
5429 if (!stage_revert(view, line))
5433 case REQ_STAGE_NEXT:
5434 if (stage_line_type == LINE_STAT_UNTRACKED) {
5435 report("File is untracked; press %s to add",
5436 get_key(REQ_STATUS_UPDATE));
5439 stage_next(view, line);
5443 if (!stage_status.new.name[0])
5445 if (stage_status.status == 'D') {
5446 report("File has been deleted.");
5450 open_editor(stage_status.status != '?', stage_status.new.name);
5454 /* Reload everything ... */
5457 case REQ_VIEW_BLAME:
5458 if (stage_status.new.name[0]) {
5459 string_copy(opt_file, stage_status.new.name);
5465 return pager_request(view, request, line);
5471 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5472 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
5474 /* Check whether the staged entry still exists, and close the
5475 * stage view if it doesn't. */
5476 if (!status_exists(&stage_status, stage_line_type)) {
5477 status_restore(VIEW(REQ_VIEW_STATUS));
5478 return REQ_VIEW_CLOSE;
5481 if (stage_line_type == LINE_STAT_UNTRACKED) {
5482 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5483 report("Cannot display a directory");
5487 if (!prepare_update_file(view, stage_status.new.name)) {
5488 report("Failed to open file: %s", strerror(errno));
5492 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5497 static struct view_ops stage_ops = {
5514 char id[SIZEOF_REV]; /* SHA1 ID. */
5515 char title[128]; /* First line of the commit message. */
5516 char author[75]; /* Author of the commit. */
5517 struct tm time; /* Date from the author ident. */
5518 struct ref **refs; /* Repository references. */
5519 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5520 size_t graph_size; /* The width of the graph array. */
5521 bool has_parents; /* Rewritten --parents seen. */
5524 /* Size of rev graph with no "padding" columns */
5525 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5528 struct rev_graph *prev, *next, *parents;
5529 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5531 struct commit *commit;
5533 unsigned int boundary:1;
5536 /* Parents of the commit being visualized. */
5537 static struct rev_graph graph_parents[4];
5539 /* The current stack of revisions on the graph. */
5540 static struct rev_graph graph_stacks[4] = {
5541 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5542 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5543 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5544 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5548 graph_parent_is_merge(struct rev_graph *graph)
5550 return graph->parents->size > 1;
5554 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5556 struct commit *commit = graph->commit;
5558 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5559 commit->graph[commit->graph_size++] = symbol;
5563 clear_rev_graph(struct rev_graph *graph)
5565 graph->boundary = 0;
5566 graph->size = graph->pos = 0;
5567 graph->commit = NULL;
5568 memset(graph->parents, 0, sizeof(*graph->parents));
5572 done_rev_graph(struct rev_graph *graph)
5574 if (graph_parent_is_merge(graph) &&
5575 graph->pos < graph->size - 1 &&
5576 graph->next->size == graph->size + graph->parents->size - 1) {
5577 size_t i = graph->pos + graph->parents->size - 1;
5579 graph->commit->graph_size = i * 2;
5580 while (i < graph->next->size - 1) {
5581 append_to_rev_graph(graph, ' ');
5582 append_to_rev_graph(graph, '\\');
5587 clear_rev_graph(graph);
5591 push_rev_graph(struct rev_graph *graph, const char *parent)
5595 /* "Collapse" duplicate parents lines.
5597 * FIXME: This needs to also update update the drawn graph but
5598 * for now it just serves as a method for pruning graph lines. */
5599 for (i = 0; i < graph->size; i++)
5600 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5603 if (graph->size < SIZEOF_REVITEMS) {
5604 string_copy_rev(graph->rev[graph->size++], parent);
5609 get_rev_graph_symbol(struct rev_graph *graph)
5613 if (graph->boundary)
5614 symbol = REVGRAPH_BOUND;
5615 else if (graph->parents->size == 0)
5616 symbol = REVGRAPH_INIT;
5617 else if (graph_parent_is_merge(graph))
5618 symbol = REVGRAPH_MERGE;
5619 else if (graph->pos >= graph->size)
5620 symbol = REVGRAPH_BRANCH;
5622 symbol = REVGRAPH_COMMIT;
5628 draw_rev_graph(struct rev_graph *graph)
5631 chtype separator, line;
5633 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5634 static struct rev_filler fillers[] = {
5640 chtype symbol = get_rev_graph_symbol(graph);
5641 struct rev_filler *filler;
5644 if (opt_line_graphics)
5645 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5647 filler = &fillers[DEFAULT];
5649 for (i = 0; i < graph->pos; i++) {
5650 append_to_rev_graph(graph, filler->line);
5651 if (graph_parent_is_merge(graph->prev) &&
5652 graph->prev->pos == i)
5653 filler = &fillers[RSHARP];
5655 append_to_rev_graph(graph, filler->separator);
5658 /* Place the symbol for this revision. */
5659 append_to_rev_graph(graph, symbol);
5661 if (graph->prev->size > graph->size)
5662 filler = &fillers[RDIAG];
5664 filler = &fillers[DEFAULT];
5668 for (; i < graph->size; i++) {
5669 append_to_rev_graph(graph, filler->separator);
5670 append_to_rev_graph(graph, filler->line);
5671 if (graph_parent_is_merge(graph->prev) &&
5672 i < graph->prev->pos + graph->parents->size)
5673 filler = &fillers[RSHARP];
5674 if (graph->prev->size > graph->size)
5675 filler = &fillers[LDIAG];
5678 if (graph->prev->size > graph->size) {
5679 append_to_rev_graph(graph, filler->separator);
5680 if (filler->line != ' ')
5681 append_to_rev_graph(graph, filler->line);
5685 /* Prepare the next rev graph */
5687 prepare_rev_graph(struct rev_graph *graph)
5691 /* First, traverse all lines of revisions up to the active one. */
5692 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5693 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5696 push_rev_graph(graph->next, graph->rev[graph->pos]);
5699 /* Interleave the new revision parent(s). */
5700 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5701 push_rev_graph(graph->next, graph->parents->rev[i]);
5703 /* Lastly, put any remaining revisions. */
5704 for (i = graph->pos + 1; i < graph->size; i++)
5705 push_rev_graph(graph->next, graph->rev[i]);
5709 update_rev_graph(struct view *view, struct rev_graph *graph)
5711 /* If this is the finalizing update ... */
5713 prepare_rev_graph(graph);
5715 /* Graph visualization needs a one rev look-ahead,
5716 * so the first update doesn't visualize anything. */
5717 if (!graph->prev->commit)
5720 if (view->lines > 2)
5721 view->line[view->lines - 3].dirty = 1;
5722 if (view->lines > 1)
5723 view->line[view->lines - 2].dirty = 1;
5724 draw_rev_graph(graph->prev);
5725 done_rev_graph(graph->prev->prev);
5733 static const char *main_argv[SIZEOF_ARG] = {
5734 "git", "log", "--no-color", "--pretty=raw", "--parents",
5735 "--topo-order", "%(head)", NULL
5739 main_draw(struct view *view, struct line *line, unsigned int lineno)
5741 struct commit *commit = line->data;
5743 if (!*commit->author)
5746 if (opt_date && draw_date(view, &commit->time))
5749 if (opt_author && draw_author(view, commit->author))
5752 if (opt_rev_graph && commit->graph_size &&
5753 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5756 if (opt_show_refs && commit->refs) {
5760 enum line_type type;
5762 if (commit->refs[i]->head)
5763 type = LINE_MAIN_HEAD;
5764 else if (commit->refs[i]->ltag)
5765 type = LINE_MAIN_LOCAL_TAG;
5766 else if (commit->refs[i]->tag)
5767 type = LINE_MAIN_TAG;
5768 else if (commit->refs[i]->tracked)
5769 type = LINE_MAIN_TRACKED;
5770 else if (commit->refs[i]->remote)
5771 type = LINE_MAIN_REMOTE;
5773 type = LINE_MAIN_REF;
5775 if (draw_text(view, type, "[", TRUE) ||
5776 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5777 draw_text(view, type, "]", TRUE))
5780 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5782 } while (commit->refs[i++]->next);
5785 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5789 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5791 main_read(struct view *view, char *line)
5793 static struct rev_graph *graph = graph_stacks;
5794 enum line_type type;
5795 struct commit *commit;
5800 if (!view->lines && !view->parent)
5801 die("No revisions match the given arguments.");
5802 if (view->lines > 0) {
5803 commit = view->line[view->lines - 1].data;
5804 view->line[view->lines - 1].dirty = 1;
5805 if (!*commit->author) {
5808 graph->commit = NULL;
5811 update_rev_graph(view, graph);
5813 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5814 clear_rev_graph(&graph_stacks[i]);
5818 type = get_line_type(line);
5819 if (type == LINE_COMMIT) {
5820 commit = calloc(1, sizeof(struct commit));
5824 line += STRING_SIZE("commit ");
5826 graph->boundary = 1;
5830 string_copy_rev(commit->id, line);
5831 commit->refs = get_refs(commit->id);
5832 graph->commit = commit;
5833 add_line_data(view, commit, LINE_MAIN_COMMIT);
5835 while ((line = strchr(line, ' '))) {
5837 push_rev_graph(graph->parents, line);
5838 commit->has_parents = TRUE;
5845 commit = view->line[view->lines - 1].data;
5849 if (commit->has_parents)
5851 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5855 parse_author_line(line + STRING_SIZE("author "),
5856 commit->author, sizeof(commit->author),
5858 update_rev_graph(view, graph);
5859 graph = graph->next;
5863 /* Fill in the commit title if it has not already been set. */
5864 if (commit->title[0])
5867 /* Require titles to start with a non-space character at the
5868 * offset used by git log. */
5869 if (strncmp(line, " ", 4))
5872 /* Well, if the title starts with a whitespace character,
5873 * try to be forgiving. Otherwise we end up with no title. */
5874 while (isspace(*line))
5878 /* FIXME: More graceful handling of titles; append "..." to
5879 * shortened titles, etc. */
5881 string_expand(commit->title, sizeof(commit->title), line, 1);
5882 view->line[view->lines - 1].dirty = 1;
5889 main_request(struct view *view, enum request request, struct line *line)
5891 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5895 open_view(view, REQ_VIEW_DIFF, flags);
5899 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5909 grep_refs(struct ref **refs, regex_t *regex)
5917 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5919 } while (refs[i++]->next);
5925 main_grep(struct view *view, struct line *line)
5927 struct commit *commit = line->data;
5928 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5929 char buf[DATE_COLS + 1];
5932 for (state = S_TITLE; state < S_END; state++) {
5936 case S_TITLE: text = commit->title; break;
5940 text = commit->author;
5945 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5952 if (grep_refs(commit->refs, view->regex) == TRUE)
5959 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5967 main_select(struct view *view, struct line *line)
5969 struct commit *commit = line->data;
5971 string_copy_rev(view->ref, commit->id);
5972 string_copy_rev(ref_commit, view->ref);
5975 static struct view_ops main_ops = {
5988 * Unicode / UTF-8 handling
5990 * NOTE: Much of the following code for dealing with unicode is derived from
5991 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5992 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5995 /* I've (over)annotated a lot of code snippets because I am not entirely
5996 * confident that the approach taken by this small UTF-8 interface is correct.
6000 unicode_width(unsigned long c)
6003 (c <= 0x115f /* Hangul Jamo */
6006 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
6008 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
6009 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
6010 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
6011 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
6012 || (c >= 0xffe0 && c <= 0xffe6)
6013 || (c >= 0x20000 && c <= 0x2fffd)
6014 || (c >= 0x30000 && c <= 0x3fffd)))
6018 return opt_tab_size;
6023 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
6024 * Illegal bytes are set one. */
6025 static const unsigned char utf8_bytes[256] = {
6026 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,
6027 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,
6028 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,
6029 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,
6030 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,
6031 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,
6032 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,
6033 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,
6036 /* Decode UTF-8 multi-byte representation into a unicode character. */
6037 static inline unsigned long
6038 utf8_to_unicode(const char *string, size_t length)
6040 unsigned long unicode;
6044 unicode = string[0];
6047 unicode = (string[0] & 0x1f) << 6;
6048 unicode += (string[1] & 0x3f);
6051 unicode = (string[0] & 0x0f) << 12;
6052 unicode += ((string[1] & 0x3f) << 6);
6053 unicode += (string[2] & 0x3f);
6056 unicode = (string[0] & 0x0f) << 18;
6057 unicode += ((string[1] & 0x3f) << 12);
6058 unicode += ((string[2] & 0x3f) << 6);
6059 unicode += (string[3] & 0x3f);
6062 unicode = (string[0] & 0x0f) << 24;
6063 unicode += ((string[1] & 0x3f) << 18);
6064 unicode += ((string[2] & 0x3f) << 12);
6065 unicode += ((string[3] & 0x3f) << 6);
6066 unicode += (string[4] & 0x3f);
6069 unicode = (string[0] & 0x01) << 30;
6070 unicode += ((string[1] & 0x3f) << 24);
6071 unicode += ((string[2] & 0x3f) << 18);
6072 unicode += ((string[3] & 0x3f) << 12);
6073 unicode += ((string[4] & 0x3f) << 6);
6074 unicode += (string[5] & 0x3f);
6077 die("Invalid unicode length");
6080 /* Invalid characters could return the special 0xfffd value but NUL
6081 * should be just as good. */
6082 return unicode > 0xffff ? 0 : unicode;
6085 /* Calculates how much of string can be shown within the given maximum width
6086 * and sets trimmed parameter to non-zero value if all of string could not be
6087 * shown. If the reserve flag is TRUE, it will reserve at least one
6088 * trailing character, which can be useful when drawing a delimiter.
6090 * Returns the number of bytes to output from string to satisfy max_width. */
6092 utf8_length(const char **start, size_t skip, int *width, size_t max_width, int *trimmed, bool reserve)
6094 const char *string = *start;
6095 const char *end = strchr(string, '\0');
6096 unsigned char last_bytes = 0;
6097 size_t last_ucwidth = 0;
6102 while (string < end) {
6103 int c = *(unsigned char *) string;
6104 unsigned char bytes = utf8_bytes[c];
6106 unsigned long unicode;
6108 if (string + bytes > end)
6111 /* Change representation to figure out whether
6112 * it is a single- or double-width character. */
6114 unicode = utf8_to_unicode(string, bytes);
6115 /* FIXME: Graceful handling of invalid unicode character. */
6119 ucwidth = unicode_width(unicode);
6121 skip -= ucwidth <= skip ? ucwidth : skip;
6125 if (*width > max_width) {
6128 if (reserve && *width == max_width) {
6129 string -= last_bytes;
6130 *width -= last_ucwidth;
6136 last_bytes = ucwidth ? bytes : 0;
6137 last_ucwidth = ucwidth;
6140 return string - *start;
6148 /* Whether or not the curses interface has been initialized. */
6149 static bool cursed = FALSE;
6151 /* Terminal hacks and workarounds. */
6152 static bool use_scroll_redrawwin;
6153 static bool use_scroll_status_wclear;
6155 /* The status window is used for polling keystrokes. */
6156 static WINDOW *status_win;
6158 /* Reading from the prompt? */
6159 static bool input_mode = FALSE;
6161 static bool status_empty = FALSE;
6163 /* Update status and title window. */
6165 report(const char *msg, ...)
6167 struct view *view = display[current_view];
6173 char buf[SIZEOF_STR];
6176 va_start(args, msg);
6177 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6178 buf[sizeof(buf) - 1] = 0;
6179 buf[sizeof(buf) - 2] = '.';
6180 buf[sizeof(buf) - 3] = '.';
6181 buf[sizeof(buf) - 4] = '.';
6187 if (!status_empty || *msg) {
6190 va_start(args, msg);
6192 wmove(status_win, 0, 0);
6193 if (view->has_scrolled && use_scroll_status_wclear)
6196 vwprintw(status_win, msg, args);
6197 status_empty = FALSE;
6199 status_empty = TRUE;
6201 wclrtoeol(status_win);
6202 wnoutrefresh(status_win);
6207 update_view_title(view);
6210 /* Controls when nodelay should be in effect when polling user input. */
6212 set_nonblocking_input(bool loading)
6214 static unsigned int loading_views;
6216 if ((loading == FALSE && loading_views-- == 1) ||
6217 (loading == TRUE && loading_views++ == 0))
6218 nodelay(status_win, loading);
6227 /* Initialize the curses library */
6228 if (isatty(STDIN_FILENO)) {
6229 cursed = !!initscr();
6232 /* Leave stdin and stdout alone when acting as a pager. */
6233 opt_tty = fopen("/dev/tty", "r+");
6235 die("Failed to open /dev/tty");
6236 cursed = !!newterm(NULL, opt_tty, opt_tty);
6240 die("Failed to initialize curses");
6242 nonl(); /* Tell curses not to do NL->CR/NL on output */
6243 cbreak(); /* Take input chars one at a time, no wait for \n */
6244 noecho(); /* Don't echo input */
6245 leaveok(stdscr, FALSE);
6250 getmaxyx(stdscr, y, x);
6251 status_win = newwin(1, 0, y - 1, 0);
6253 die("Failed to create status window");
6255 /* Enable keyboard mapping */
6256 keypad(status_win, TRUE);
6257 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6259 TABSIZE = opt_tab_size;
6260 if (opt_line_graphics) {
6261 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6264 term = getenv("XTERM_VERSION") ? NULL : getenv("COLORTERM");
6265 if (term && !strcmp(term, "gnome-terminal")) {
6266 /* In the gnome-terminal-emulator, the message from
6267 * scrolling up one line when impossible followed by
6268 * scrolling down one line causes corruption of the
6269 * status line. This is fixed by calling wclear. */
6270 use_scroll_status_wclear = TRUE;
6271 use_scroll_redrawwin = FALSE;
6273 } else if (term && !strcmp(term, "xrvt-xpm")) {
6274 /* No problems with full optimizations in xrvt-(unicode)
6276 use_scroll_status_wclear = use_scroll_redrawwin = FALSE;
6279 /* When scrolling in (u)xterm the last line in the
6280 * scrolling direction will update slowly. */
6281 use_scroll_redrawwin = TRUE;
6282 use_scroll_status_wclear = FALSE;
6287 get_input(int prompt_position)
6290 int i, key, cursor_y, cursor_x;
6292 if (prompt_position)
6296 foreach_view (view, i) {
6298 if (view_is_displayed(view) && view->has_scrolled &&
6299 use_scroll_redrawwin)
6300 redrawwin(view->win);
6301 view->has_scrolled = FALSE;
6304 /* Update the cursor position. */
6305 if (prompt_position) {
6306 getbegyx(status_win, cursor_y, cursor_x);
6307 cursor_x = prompt_position;
6309 view = display[current_view];
6310 getbegyx(view->win, cursor_y, cursor_x);
6311 cursor_x = view->width - 1;
6312 cursor_y += view->lineno - view->offset;
6314 setsyx(cursor_y, cursor_x);
6316 /* Refresh, accept single keystroke of input */
6318 key = wgetch(status_win);
6320 /* wgetch() with nodelay() enabled returns ERR when
6321 * there's no input. */
6324 } else if (key == KEY_RESIZE) {
6327 getmaxyx(stdscr, height, width);
6329 wresize(status_win, 1, width);
6330 mvwin(status_win, height - 1, 0);
6331 wnoutrefresh(status_win);
6333 redraw_display(TRUE);
6343 prompt_input(const char *prompt, input_handler handler, void *data)
6345 enum input_status status = INPUT_OK;
6346 static char buf[SIZEOF_STR];
6351 while (status == INPUT_OK || status == INPUT_SKIP) {
6354 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6355 wclrtoeol(status_win);
6357 key = get_input(pos + 1);
6362 status = pos ? INPUT_STOP : INPUT_CANCEL;
6369 status = INPUT_CANCEL;
6373 status = INPUT_CANCEL;
6377 if (pos >= sizeof(buf)) {
6378 report("Input string too long");
6382 status = handler(data, buf, key);
6383 if (status == INPUT_OK)
6384 buf[pos++] = (char) key;
6388 /* Clear the status window */
6389 status_empty = FALSE;
6392 if (status == INPUT_CANCEL)
6400 static enum input_status
6401 prompt_yesno_handler(void *data, char *buf, int c)
6403 if (c == 'y' || c == 'Y')
6405 if (c == 'n' || c == 'N')
6406 return INPUT_CANCEL;
6411 prompt_yesno(const char *prompt)
6413 char prompt2[SIZEOF_STR];
6415 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6418 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6421 static enum input_status
6422 read_prompt_handler(void *data, char *buf, int c)
6424 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6428 read_prompt(const char *prompt)
6430 return prompt_input(prompt, read_prompt_handler, NULL);
6434 * Repository properties
6437 static struct ref *refs = NULL;
6438 static size_t refs_alloc = 0;
6439 static size_t refs_size = 0;
6441 /* Id <-> ref store */
6442 static struct ref ***id_refs = NULL;
6443 static size_t id_refs_alloc = 0;
6444 static size_t id_refs_size = 0;
6447 compare_refs(const void *ref1_, const void *ref2_)
6449 const struct ref *ref1 = *(const struct ref **)ref1_;
6450 const struct ref *ref2 = *(const struct ref **)ref2_;
6452 if (ref1->tag != ref2->tag)
6453 return ref2->tag - ref1->tag;
6454 if (ref1->ltag != ref2->ltag)
6455 return ref2->ltag - ref2->ltag;
6456 if (ref1->head != ref2->head)
6457 return ref2->head - ref1->head;
6458 if (ref1->tracked != ref2->tracked)
6459 return ref2->tracked - ref1->tracked;
6460 if (ref1->remote != ref2->remote)
6461 return ref2->remote - ref1->remote;
6462 return strcmp(ref1->name, ref2->name);
6465 static struct ref **
6466 get_refs(const char *id)
6468 struct ref ***tmp_id_refs;
6469 struct ref **ref_list = NULL;
6470 size_t ref_list_alloc = 0;
6471 size_t ref_list_size = 0;
6474 for (i = 0; i < id_refs_size; i++)
6475 if (!strcmp(id, id_refs[i][0]->id))
6478 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6483 id_refs = tmp_id_refs;
6485 for (i = 0; i < refs_size; i++) {
6488 if (strcmp(id, refs[i].id))
6491 tmp = realloc_items(ref_list, &ref_list_alloc,
6492 ref_list_size + 1, sizeof(*ref_list));
6500 ref_list[ref_list_size] = &refs[i];
6501 /* XXX: The properties of the commit chains ensures that we can
6502 * safely modify the shared ref. The repo references will
6503 * always be similar for the same id. */
6504 ref_list[ref_list_size]->next = 1;
6510 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6511 ref_list[ref_list_size - 1]->next = 0;
6512 id_refs[id_refs_size++] = ref_list;
6519 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6524 bool remote = FALSE;
6525 bool tracked = FALSE;
6526 bool check_replace = FALSE;
6529 if (!prefixcmp(name, "refs/tags/")) {
6530 if (!suffixcmp(name, namelen, "^{}")) {
6533 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6534 check_replace = TRUE;
6540 namelen -= STRING_SIZE("refs/tags/");
6541 name += STRING_SIZE("refs/tags/");
6543 } else if (!prefixcmp(name, "refs/remotes/")) {
6545 namelen -= STRING_SIZE("refs/remotes/");
6546 name += STRING_SIZE("refs/remotes/");
6547 tracked = !strcmp(opt_remote, name);
6549 } else if (!prefixcmp(name, "refs/heads/")) {
6550 namelen -= STRING_SIZE("refs/heads/");
6551 name += STRING_SIZE("refs/heads/");
6552 head = !strncmp(opt_head, name, namelen);
6554 } else if (!strcmp(name, "HEAD")) {
6555 string_ncopy(opt_head_rev, id, idlen);
6559 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6560 /* it's an annotated tag, replace the previous sha1 with the
6561 * resolved commit id; relies on the fact git-ls-remote lists
6562 * the commit id of an annotated tag right before the commit id
6564 refs[refs_size - 1].ltag = ltag;
6565 string_copy_rev(refs[refs_size - 1].id, id);
6569 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6573 ref = &refs[refs_size++];
6574 ref->name = malloc(namelen + 1);
6578 strncpy(ref->name, name, namelen);
6579 ref->name[namelen] = 0;
6583 ref->remote = remote;
6584 ref->tracked = tracked;
6585 string_copy_rev(ref->id, id);
6593 static const char *ls_remote_argv[SIZEOF_ARG] = {
6594 "git", "ls-remote", ".", NULL
6596 static bool init = FALSE;
6599 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6606 while (refs_size > 0)
6607 free(refs[--refs_size].name);
6608 while (id_refs_size > 0)
6609 free(id_refs[--id_refs_size]);
6611 return run_io_load(ls_remote_argv, "\t", read_ref);
6615 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6617 if (!strcmp(name, "i18n.commitencoding"))
6618 string_ncopy(opt_encoding, value, valuelen);
6620 if (!strcmp(name, "core.editor"))
6621 string_ncopy(opt_editor, value, valuelen);
6623 /* branch.<head>.remote */
6625 !strncmp(name, "branch.", 7) &&
6626 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6627 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6628 string_ncopy(opt_remote, value, valuelen);
6630 if (*opt_head && *opt_remote &&
6631 !strncmp(name, "branch.", 7) &&
6632 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6633 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6634 size_t from = strlen(opt_remote);
6636 if (!prefixcmp(value, "refs/heads/")) {
6637 value += STRING_SIZE("refs/heads/");
6638 valuelen -= STRING_SIZE("refs/heads/");
6641 if (!string_format_from(opt_remote, &from, "/%s", value))
6649 load_git_config(void)
6651 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6653 return run_io_load(config_list_argv, "=", read_repo_config_option);
6657 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6659 if (!opt_git_dir[0]) {
6660 string_ncopy(opt_git_dir, name, namelen);
6662 } else if (opt_is_inside_work_tree == -1) {
6663 /* This can be 3 different values depending on the
6664 * version of git being used. If git-rev-parse does not
6665 * understand --is-inside-work-tree it will simply echo
6666 * the option else either "true" or "false" is printed.
6667 * Default to true for the unknown case. */
6668 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6670 } else if (*name == '.') {
6671 string_ncopy(opt_cdup, name, namelen);
6674 string_ncopy(opt_prefix, name, namelen);
6681 load_repo_info(void)
6683 const char *head_argv[] = {
6684 "git", "symbolic-ref", "HEAD", NULL
6686 const char *rev_parse_argv[] = {
6687 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6688 "--show-cdup", "--show-prefix", NULL
6691 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6692 chomp_string(opt_head);
6693 if (!prefixcmp(opt_head, "refs/heads/")) {
6694 char *offset = opt_head + STRING_SIZE("refs/heads/");
6696 memmove(opt_head, offset, strlen(offset) + 1);
6700 return run_io_load(rev_parse_argv, "=", read_repo_info);
6708 static const char usage[] =
6709 "tig " TIG_VERSION " (" __DATE__ ")\n"
6711 "Usage: tig [options] [revs] [--] [paths]\n"
6712 " or: tig show [options] [revs] [--] [paths]\n"
6713 " or: tig blame [rev] path\n"
6715 " or: tig < [git command output]\n"
6718 " -v, --version Show version and exit\n"
6719 " -h, --help Show help message and exit";
6721 static void __NORETURN
6724 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6730 static void __NORETURN
6731 die(const char *err, ...)
6737 va_start(args, err);
6738 fputs("tig: ", stderr);
6739 vfprintf(stderr, err, args);
6740 fputs("\n", stderr);
6747 warn(const char *msg, ...)
6751 va_start(args, msg);
6752 fputs("tig warning: ", stderr);
6753 vfprintf(stderr, msg, args);
6754 fputs("\n", stderr);
6759 parse_options(int argc, const char *argv[])
6761 enum request request = REQ_VIEW_MAIN;
6762 const char *subcommand;
6763 bool seen_dashdash = FALSE;
6764 /* XXX: This is vulnerable to the user overriding options
6765 * required for the main view parser. */
6766 const char *custom_argv[SIZEOF_ARG] = {
6767 "git", "log", "--no-color", "--pretty=raw", "--parents",
6768 "--topo-order", NULL
6772 if (!isatty(STDIN_FILENO)) {
6773 io_open(&VIEW(REQ_VIEW_PAGER)->io, "");
6774 return REQ_VIEW_PAGER;
6780 subcommand = argv[1];
6781 if (!strcmp(subcommand, "status")) {
6783 warn("ignoring arguments after `%s'", subcommand);
6784 return REQ_VIEW_STATUS;
6786 } else if (!strcmp(subcommand, "blame")) {
6787 if (argc <= 2 || argc > 4)
6788 die("invalid number of options to blame\n\n%s", usage);
6792 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
6796 string_ncopy(opt_file, argv[i], strlen(argv[i]));
6797 return REQ_VIEW_BLAME;
6799 } else if (!strcmp(subcommand, "show")) {
6800 request = REQ_VIEW_DIFF;
6807 custom_argv[1] = subcommand;
6811 for (i = 1 + !!subcommand; i < argc; i++) {
6812 const char *opt = argv[i];
6814 if (seen_dashdash || !strcmp(opt, "--")) {
6815 seen_dashdash = TRUE;
6817 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
6818 printf("tig version %s\n", TIG_VERSION);
6821 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
6822 printf("%s\n", usage);
6826 custom_argv[j++] = opt;
6827 if (j >= ARRAY_SIZE(custom_argv))
6828 die("command too long");
6831 if (!prepare_update(VIEW(request), custom_argv, NULL, FORMAT_NONE))
6832 die("Failed to format arguments");
6838 main(int argc, const char *argv[])
6840 enum request request = parse_options(argc, argv);
6844 signal(SIGINT, quit);
6846 if (setlocale(LC_ALL, "")) {
6847 char *codeset = nl_langinfo(CODESET);
6849 string_ncopy(opt_codeset, codeset, strlen(codeset));
6852 if (load_repo_info() == ERR)
6853 die("Failed to load repo info.");
6855 if (load_options() == ERR)
6856 die("Failed to load user config.");
6858 if (load_git_config() == ERR)
6859 die("Failed to load repo config.");
6861 /* Require a git repository unless when running in pager mode. */
6862 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6863 die("Not a git repository");
6865 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6868 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6869 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6870 if (opt_iconv == ICONV_NONE)
6871 die("Failed to initialize character set conversion");
6874 if (load_refs() == ERR)
6875 die("Failed to load refs.");
6877 foreach_view (view, i)
6878 argv_from_env(view->ops->argv, view->cmd_env);
6882 if (request != REQ_NONE)
6883 open_view(NULL, request, OPEN_PREPARED);
6884 request = request == REQ_NONE ? REQ_VIEW_MAIN : REQ_NONE;
6886 while (view_driver(display[current_view], request)) {
6887 int key = get_input(0);
6889 view = display[current_view];
6890 request = get_keybinding(view->keymap, key);
6892 /* Some low-level request handling. This keeps access to
6893 * status_win restricted. */
6897 char *cmd = read_prompt(":");
6900 struct view *next = VIEW(REQ_VIEW_PAGER);
6901 const char *argv[SIZEOF_ARG] = { "git" };
6904 /* When running random commands, initially show the
6905 * command in the title. However, it maybe later be
6906 * overwritten if a commit line is selected. */
6907 string_ncopy(next->ref, cmd, strlen(cmd));
6909 if (!argv_from_string(argv, &argc, cmd)) {
6910 report("Too many arguments");
6911 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6912 report("Failed to format command");
6914 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6922 case REQ_SEARCH_BACK:
6924 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6925 char *search = read_prompt(prompt);
6928 string_ncopy(opt_search, search, strlen(search));
6929 else if (*opt_search)
6930 request = request == REQ_SEARCH ?