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_CYAN, 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_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
934 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
935 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
936 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
937 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
938 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
939 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
940 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
941 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
942 LINE(TREE_PARENT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_BOLD), \
943 LINE(TREE_MODE, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
944 LINE(TREE_DIR, "", COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL), \
945 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
946 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
947 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
948 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
949 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
950 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
951 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
952 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
955 #define LINE(type, line, fg, bg, attr) \
963 const char *name; /* Option name. */
964 int namelen; /* Size of option name. */
965 const char *line; /* The start of line to match. */
966 int linelen; /* Size of string to match. */
967 int fg, bg, attr; /* Color and text attributes for the lines. */
970 static struct line_info line_info[] = {
971 #define LINE(type, line, fg, bg, attr) \
972 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
977 static enum line_type
978 get_line_type(const char *line)
980 int linelen = strlen(line);
983 for (type = 0; type < ARRAY_SIZE(line_info); type++)
984 /* Case insensitive search matches Signed-off-by lines better. */
985 if (linelen >= line_info[type].linelen &&
986 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
993 get_line_attr(enum line_type type)
995 assert(type < ARRAY_SIZE(line_info));
996 return COLOR_PAIR(type) | line_info[type].attr;
999 static struct line_info *
1000 get_line_info(const char *name)
1002 size_t namelen = strlen(name);
1003 enum line_type type;
1005 for (type = 0; type < ARRAY_SIZE(line_info); type++)
1006 if (namelen == line_info[type].namelen &&
1007 !string_enum_compare(line_info[type].name, name, namelen))
1008 return &line_info[type];
1016 int default_bg = line_info[LINE_DEFAULT].bg;
1017 int default_fg = line_info[LINE_DEFAULT].fg;
1018 enum line_type type;
1022 if (assume_default_colors(default_fg, default_bg) == ERR) {
1023 default_bg = COLOR_BLACK;
1024 default_fg = COLOR_WHITE;
1027 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
1028 struct line_info *info = &line_info[type];
1029 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
1030 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
1032 init_pair(type, fg, bg);
1037 enum line_type type;
1040 unsigned int selected:1;
1041 unsigned int dirty:1;
1042 unsigned int cleareol:1;
1044 void *data; /* User data */
1054 enum request request;
1057 static struct keybinding default_keybindings[] = {
1058 /* View switching */
1059 { 'm', REQ_VIEW_MAIN },
1060 { 'd', REQ_VIEW_DIFF },
1061 { 'l', REQ_VIEW_LOG },
1062 { 't', REQ_VIEW_TREE },
1063 { 'f', REQ_VIEW_BLOB },
1064 { 'B', REQ_VIEW_BLAME },
1065 { 'p', REQ_VIEW_PAGER },
1066 { 'h', REQ_VIEW_HELP },
1067 { 'S', REQ_VIEW_STATUS },
1068 { 'c', REQ_VIEW_STAGE },
1070 /* View manipulation */
1071 { 'q', REQ_VIEW_CLOSE },
1072 { KEY_TAB, REQ_VIEW_NEXT },
1073 { KEY_RETURN, REQ_ENTER },
1074 { KEY_UP, REQ_PREVIOUS },
1075 { KEY_DOWN, REQ_NEXT },
1076 { 'R', REQ_REFRESH },
1077 { KEY_F(5), REQ_REFRESH },
1078 { 'O', REQ_MAXIMIZE },
1080 /* Cursor navigation */
1081 { 'k', REQ_MOVE_UP },
1082 { 'j', REQ_MOVE_DOWN },
1083 { KEY_HOME, REQ_MOVE_FIRST_LINE },
1084 { KEY_END, REQ_MOVE_LAST_LINE },
1085 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
1086 { ' ', REQ_MOVE_PAGE_DOWN },
1087 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
1088 { 'b', REQ_MOVE_PAGE_UP },
1089 { '-', REQ_MOVE_PAGE_UP },
1092 { KEY_LEFT, REQ_SCROLL_LEFT },
1093 { KEY_RIGHT, REQ_SCROLL_RIGHT },
1094 { KEY_IC, REQ_SCROLL_LINE_UP },
1095 { KEY_DC, REQ_SCROLL_LINE_DOWN },
1096 { 'w', REQ_SCROLL_PAGE_UP },
1097 { 's', REQ_SCROLL_PAGE_DOWN },
1100 { '/', REQ_SEARCH },
1101 { '?', REQ_SEARCH_BACK },
1102 { 'n', REQ_FIND_NEXT },
1103 { 'N', REQ_FIND_PREV },
1107 { 'z', REQ_STOP_LOADING },
1108 { 'v', REQ_SHOW_VERSION },
1109 { 'r', REQ_SCREEN_REDRAW },
1110 { '.', REQ_TOGGLE_LINENO },
1111 { 'D', REQ_TOGGLE_DATE },
1112 { 'A', REQ_TOGGLE_AUTHOR },
1113 { 'g', REQ_TOGGLE_REV_GRAPH },
1114 { 'F', REQ_TOGGLE_REFS },
1115 { ':', REQ_PROMPT },
1116 { 'u', REQ_STATUS_UPDATE },
1117 { '!', REQ_STATUS_REVERT },
1118 { 'M', REQ_STATUS_MERGE },
1119 { '@', REQ_STAGE_NEXT },
1120 { ',', REQ_PARENT },
1124 #define KEYMAP_INFO \
1138 #define KEYMAP_(name) KEYMAP_##name
1143 static struct int_map keymap_table[] = {
1144 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
1149 #define set_keymap(map, name) \
1150 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
1152 struct keybinding_table {
1153 struct keybinding *data;
1157 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
1160 add_keybinding(enum keymap keymap, enum request request, int key)
1162 struct keybinding_table *table = &keybindings[keymap];
1164 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
1166 die("Failed to allocate keybinding");
1167 table->data[table->size].alias = key;
1168 table->data[table->size++].request = request;
1171 /* Looks for a key binding first in the given map, then in the generic map, and
1172 * lastly in the default keybindings. */
1174 get_keybinding(enum keymap keymap, int key)
1178 for (i = 0; i < keybindings[keymap].size; i++)
1179 if (keybindings[keymap].data[i].alias == key)
1180 return keybindings[keymap].data[i].request;
1182 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
1183 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
1184 return keybindings[KEYMAP_GENERIC].data[i].request;
1186 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
1187 if (default_keybindings[i].alias == key)
1188 return default_keybindings[i].request;
1190 return (enum request) key;
1199 static struct key key_table[] = {
1200 { "Enter", KEY_RETURN },
1202 { "Backspace", KEY_BACKSPACE },
1204 { "Escape", KEY_ESC },
1205 { "Left", KEY_LEFT },
1206 { "Right", KEY_RIGHT },
1208 { "Down", KEY_DOWN },
1209 { "Insert", KEY_IC },
1210 { "Delete", KEY_DC },
1212 { "Home", KEY_HOME },
1214 { "PageUp", KEY_PPAGE },
1215 { "PageDown", KEY_NPAGE },
1225 { "F10", KEY_F(10) },
1226 { "F11", KEY_F(11) },
1227 { "F12", KEY_F(12) },
1231 get_key_value(const char *name)
1235 for (i = 0; i < ARRAY_SIZE(key_table); i++)
1236 if (!strcasecmp(key_table[i].name, name))
1237 return key_table[i].value;
1239 if (strlen(name) == 1 && isprint(*name))
1246 get_key_name(int key_value)
1248 static char key_char[] = "'X'";
1249 const char *seq = NULL;
1252 for (key = 0; key < ARRAY_SIZE(key_table); key++)
1253 if (key_table[key].value == key_value)
1254 seq = key_table[key].name;
1258 isprint(key_value)) {
1259 key_char[1] = (char) key_value;
1263 return seq ? seq : "(no key)";
1267 get_key(enum request request)
1269 static char buf[BUFSIZ];
1276 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1277 struct keybinding *keybinding = &default_keybindings[i];
1279 if (keybinding->request != request)
1282 if (!string_format_from(buf, &pos, "%s%s", sep,
1283 get_key_name(keybinding->alias)))
1284 return "Too many keybindings!";
1291 struct run_request {
1294 const char *argv[SIZEOF_ARG];
1297 static struct run_request *run_request;
1298 static size_t run_requests;
1301 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
1303 struct run_request *req;
1305 if (argc >= ARRAY_SIZE(req->argv) - 1)
1308 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1313 req = &run_request[run_requests];
1314 req->keymap = keymap;
1316 req->argv[0] = NULL;
1318 if (!format_argv(req->argv, argv, FORMAT_NONE))
1321 return REQ_NONE + ++run_requests;
1324 static struct run_request *
1325 get_run_request(enum request request)
1327 if (request <= REQ_NONE)
1329 return &run_request[request - REQ_NONE - 1];
1333 add_builtin_run_requests(void)
1335 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
1336 const char *gc[] = { "git", "gc", NULL };
1343 { KEYMAP_MAIN, 'C', ARRAY_SIZE(cherry_pick) - 1, cherry_pick },
1344 { KEYMAP_GENERIC, 'G', ARRAY_SIZE(gc) - 1, gc },
1348 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1351 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argc, reqs[i].argv);
1352 if (req != REQ_NONE)
1353 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1358 * User config file handling.
1361 static struct int_map color_map[] = {
1362 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1374 #define set_color(color, name) \
1375 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1377 static struct int_map attr_map[] = {
1378 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1385 ATTR_MAP(UNDERLINE),
1388 #define set_attribute(attr, name) \
1389 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1391 static int config_lineno;
1392 static bool config_errors;
1393 static const char *config_msg;
1395 /* Wants: object fgcolor bgcolor [attr] */
1397 option_color_command(int argc, const char *argv[])
1399 struct line_info *info;
1401 if (argc != 3 && argc != 4) {
1402 config_msg = "Wrong number of arguments given to color command";
1406 info = get_line_info(argv[0]);
1408 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1409 info = get_line_info("delimiter");
1411 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1412 info = get_line_info("date");
1415 config_msg = "Unknown color name";
1420 if (set_color(&info->fg, argv[1]) == ERR ||
1421 set_color(&info->bg, argv[2]) == ERR) {
1422 config_msg = "Unknown color";
1426 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1427 config_msg = "Unknown attribute";
1434 static bool parse_bool(const char *s)
1436 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1437 !strcmp(s, "yes")) ? TRUE : FALSE;
1441 parse_int(const char *s, int default_value, int min, int max)
1443 int value = atoi(s);
1445 return (value < min || value > max) ? default_value : value;
1448 /* Wants: name = value */
1450 option_set_command(int argc, const char *argv[])
1453 config_msg = "Wrong number of arguments given to set command";
1457 if (strcmp(argv[1], "=")) {
1458 config_msg = "No value assigned";
1462 if (!strcmp(argv[0], "show-author")) {
1463 opt_author = parse_bool(argv[2]);
1467 if (!strcmp(argv[0], "show-date")) {
1468 opt_date = parse_bool(argv[2]);
1472 if (!strcmp(argv[0], "show-rev-graph")) {
1473 opt_rev_graph = parse_bool(argv[2]);
1477 if (!strcmp(argv[0], "show-refs")) {
1478 opt_show_refs = parse_bool(argv[2]);
1482 if (!strcmp(argv[0], "show-line-numbers")) {
1483 opt_line_number = parse_bool(argv[2]);
1487 if (!strcmp(argv[0], "line-graphics")) {
1488 opt_line_graphics = parse_bool(argv[2]);
1492 if (!strcmp(argv[0], "line-number-interval")) {
1493 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1497 if (!strcmp(argv[0], "author-width")) {
1498 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1502 if (!strcmp(argv[0], "tab-size")) {
1503 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1507 if (!strcmp(argv[0], "commit-encoding")) {
1508 const char *arg = argv[2];
1509 int arglen = strlen(arg);
1514 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1515 config_msg = "Unmatched quotation";
1518 arg += 1; arglen -= 2;
1520 string_ncopy(opt_encoding, arg, strlen(arg));
1525 config_msg = "Unknown variable name";
1529 /* Wants: mode request key */
1531 option_bind_command(int argc, const char *argv[])
1533 enum request request;
1538 config_msg = "Wrong number of arguments given to bind command";
1542 if (set_keymap(&keymap, argv[0]) == ERR) {
1543 config_msg = "Unknown key map";
1547 key = get_key_value(argv[1]);
1549 config_msg = "Unknown key";
1553 request = get_request(argv[2]);
1554 if (request == REQ_NONE) {
1557 enum request request;
1559 { "cherry-pick", REQ_NONE },
1560 { "screen-resize", REQ_NONE },
1561 { "tree-parent", REQ_PARENT },
1563 size_t namelen = strlen(argv[2]);
1566 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1567 if (namelen != strlen(obsolete[i].name) ||
1568 string_enum_compare(obsolete[i].name, argv[2], namelen))
1570 if (obsolete[i].request != REQ_NONE)
1571 add_keybinding(keymap, obsolete[i].request, key);
1572 config_msg = "Obsolete request name";
1576 if (request == REQ_NONE && *argv[2]++ == '!')
1577 request = add_run_request(keymap, key, argc - 2, argv + 2);
1578 if (request == REQ_NONE) {
1579 config_msg = "Unknown request name";
1583 add_keybinding(keymap, request, key);
1589 set_option(const char *opt, char *value)
1591 const char *argv[SIZEOF_ARG];
1594 if (!argv_from_string(argv, &argc, value)) {
1595 config_msg = "Too many option arguments";
1599 if (!strcmp(opt, "color"))
1600 return option_color_command(argc, argv);
1602 if (!strcmp(opt, "set"))
1603 return option_set_command(argc, argv);
1605 if (!strcmp(opt, "bind"))
1606 return option_bind_command(argc, argv);
1608 config_msg = "Unknown option command";
1613 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1618 config_msg = "Internal error";
1620 /* Check for comment markers, since read_properties() will
1621 * only ensure opt and value are split at first " \t". */
1622 optlen = strcspn(opt, "#");
1626 if (opt[optlen] != 0) {
1627 config_msg = "No option value";
1631 /* Look for comment endings in the value. */
1632 size_t len = strcspn(value, "#");
1634 if (len < valuelen) {
1636 value[valuelen] = 0;
1639 status = set_option(opt, value);
1642 if (status == ERR) {
1643 warn("Error on line %d, near '%.*s': %s",
1644 config_lineno, (int) optlen, opt, config_msg);
1645 config_errors = TRUE;
1648 /* Always keep going if errors are encountered. */
1653 load_option_file(const char *path)
1657 /* It's ok that the file doesn't exist. */
1658 if (!io_open(&io, path))
1662 config_errors = FALSE;
1664 if (io_load(&io, " \t", read_option) == ERR ||
1665 config_errors == TRUE)
1666 warn("Errors while loading %s.", path);
1672 const char *home = getenv("HOME");
1673 const char *tigrc_user = getenv("TIGRC_USER");
1674 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1675 char buf[SIZEOF_STR];
1677 add_builtin_run_requests();
1679 if (!tigrc_system) {
1680 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1684 load_option_file(tigrc_system);
1687 if (!home || !string_format(buf, "%s/.tigrc", home))
1691 load_option_file(tigrc_user);
1704 /* The display array of active views and the index of the current view. */
1705 static struct view *display[2];
1706 static unsigned int current_view;
1708 #define foreach_displayed_view(view, i) \
1709 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1711 #define displayed_views() (display[1] != NULL ? 2 : 1)
1713 /* Current head and commit ID */
1714 static char ref_blob[SIZEOF_REF] = "";
1715 static char ref_commit[SIZEOF_REF] = "HEAD";
1716 static char ref_head[SIZEOF_REF] = "HEAD";
1719 const char *name; /* View name */
1720 const char *cmd_env; /* Command line set via environment */
1721 const char *id; /* Points to either of ref_{head,commit,blob} */
1723 struct view_ops *ops; /* View operations */
1725 enum keymap keymap; /* What keymap does this view have */
1726 bool git_dir; /* Whether the view requires a git directory. */
1728 char ref[SIZEOF_REF]; /* Hovered commit reference */
1729 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1731 int height, width; /* The width and height of the main window */
1732 WINDOW *win; /* The main window */
1733 WINDOW *title; /* The title window living below the main window */
1736 unsigned long offset; /* Offset of the window top */
1737 unsigned long yoffset; /* Offset from the window side. */
1738 unsigned long lineno; /* Current line number */
1739 unsigned long p_offset; /* Previous offset of the window top */
1740 unsigned long p_yoffset;/* Previous offset from the window side */
1741 unsigned long p_lineno; /* Previous current line number */
1742 bool p_restore; /* Should the previous position be restored. */
1745 char grep[SIZEOF_STR]; /* Search string */
1746 regex_t *regex; /* Pre-compiled regex */
1748 /* If non-NULL, points to the view that opened this view. If this view
1749 * is closed tig will switch back to the parent view. */
1750 struct view *parent;
1753 size_t lines; /* Total number of lines */
1754 struct line *line; /* Line index */
1755 size_t line_alloc; /* Total number of allocated lines */
1756 unsigned int digits; /* Number of digits in the lines member. */
1759 struct line *curline; /* Line currently being drawn. */
1760 enum line_type curtype; /* Attribute currently used for drawing. */
1761 unsigned long col; /* Column when drawing. */
1762 bool has_scrolled; /* View was scrolled. */
1763 bool can_hscroll; /* View can be scrolled horizontally. */
1773 /* What type of content being displayed. Used in the title bar. */
1775 /* Default command arguments. */
1777 /* Open and reads in all view content. */
1778 bool (*open)(struct view *view);
1779 /* Read one line; updates view->line. */
1780 bool (*read)(struct view *view, char *data);
1781 /* Draw one line; @lineno must be < view->height. */
1782 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1783 /* Depending on view handle a special requests. */
1784 enum request (*request)(struct view *view, enum request request, struct line *line);
1785 /* Search for regex in a line. */
1786 bool (*grep)(struct view *view, struct line *line);
1788 void (*select)(struct view *view, struct line *line);
1791 static struct view_ops blame_ops;
1792 static struct view_ops blob_ops;
1793 static struct view_ops diff_ops;
1794 static struct view_ops help_ops;
1795 static struct view_ops log_ops;
1796 static struct view_ops main_ops;
1797 static struct view_ops pager_ops;
1798 static struct view_ops stage_ops;
1799 static struct view_ops status_ops;
1800 static struct view_ops tree_ops;
1802 #define VIEW_STR(name, env, ref, ops, map, git) \
1803 { name, #env, ref, ops, map, git }
1805 #define VIEW_(id, name, ops, git, ref) \
1806 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1809 static struct view views[] = {
1810 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1811 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1812 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1813 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1814 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1815 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1816 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1817 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1818 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1819 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1822 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1823 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1825 #define foreach_view(view, i) \
1826 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1828 #define view_is_displayed(view) \
1829 (view == display[0] || view == display[1])
1836 static int line_graphics[] = {
1837 /* LINE_GRAPHIC_VLINE: */ '|'
1841 set_view_attr(struct view *view, enum line_type type)
1843 if (!view->curline->selected && view->curtype != type) {
1844 wattrset(view->win, get_line_attr(type));
1845 wchgat(view->win, -1, 0, type, NULL);
1846 view->curtype = type;
1851 draw_chars(struct view *view, enum line_type type, const char *string,
1852 int max_len, bool use_tilde)
1856 int trimmed = FALSE;
1857 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1863 len = utf8_length(&string, skip, &col, max_len, &trimmed, use_tilde);
1865 col = len = strlen(string);
1866 if (len > max_len) {
1870 col = len = max_len;
1875 set_view_attr(view, type);
1877 waddnstr(view->win, string, len);
1878 if (trimmed && use_tilde) {
1879 set_view_attr(view, LINE_DELIMITER);
1880 waddch(view->win, '~');
1884 if (view->col + col >= view->width + view->yoffset)
1885 view->can_hscroll = TRUE;
1891 draw_space(struct view *view, enum line_type type, int max, int spaces)
1893 static char space[] = " ";
1896 spaces = MIN(max, spaces);
1898 while (spaces > 0) {
1899 int len = MIN(spaces, sizeof(space) - 1);
1901 col += draw_chars(view, type, space, spaces, FALSE);
1909 draw_lineno(struct view *view, unsigned int lineno)
1911 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1913 int digits3 = view->digits < 3 ? 3 : view->digits;
1914 int max_number = MIN(digits3, STRING_SIZE(number));
1915 int max = view->width - view->col;
1918 if (max < max_number)
1921 lineno += view->offset + 1;
1922 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1923 static char fmt[] = "%1ld";
1925 if (view->digits <= 9)
1926 fmt[1] = '0' + digits3;
1928 if (!string_format(number, fmt, lineno))
1930 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1932 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1935 if (col < max && skip <= col) {
1936 set_view_attr(view, LINE_DEFAULT);
1937 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1942 if (col < max && skip <= col)
1943 col = draw_space(view, LINE_DEFAULT, max - col, 1);
1946 return view->width + view->yoffset <= view->col;
1950 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1952 view->col += draw_chars(view, type, string, view->width + view->yoffset - view->col, trim);
1953 return view->width - view->col <= 0;
1957 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1959 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1960 int max = view->width - view->col;
1966 set_view_attr(view, type);
1967 /* Using waddch() instead of waddnstr() ensures that
1968 * they'll be rendered correctly for the cursor line. */
1969 for (i = skip; i < size; i++)
1970 waddch(view->win, graphic[i]);
1973 if (size < max && skip <= size)
1974 waddch(view->win, ' ');
1977 return view->width - view->col <= 0;
1981 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1983 int max = MIN(view->width - view->col, len);
1987 col = draw_chars(view, type, text, max - 1, trim);
1989 col = draw_space(view, type, max - 1, max - 1);
1992 view->col += draw_space(view, LINE_DEFAULT, max - col, max - col);
1993 return view->width + view->yoffset <= view->col;
1997 draw_date(struct view *view, struct tm *time)
1999 char buf[DATE_COLS];
2004 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
2005 date = timelen ? buf : NULL;
2007 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
2011 draw_author(struct view *view, const char *author)
2013 bool trim = opt_author_cols == 0 || opt_author_cols > 5 || !author;
2016 static char initials[10];
2019 #define is_initial_sep(c) (isspace(c) || ispunct(c) || (c) == '@')
2021 memset(initials, 0, sizeof(initials));
2022 for (pos = 0; *author && pos < opt_author_cols - 1; author++, pos++) {
2023 while (is_initial_sep(*author))
2025 strncpy(&initials[pos], author, sizeof(initials) - 1 - pos);
2026 while (*author && !is_initial_sep(author[1]))
2033 return draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, trim);
2037 draw_view_line(struct view *view, unsigned int lineno)
2040 bool selected = (view->offset + lineno == view->lineno);
2042 assert(view_is_displayed(view));
2044 if (view->offset + lineno >= view->lines)
2047 line = &view->line[view->offset + lineno];
2049 wmove(view->win, lineno, 0);
2051 wclrtoeol(view->win);
2053 view->curline = line;
2054 view->curtype = LINE_NONE;
2055 line->selected = FALSE;
2056 line->dirty = line->cleareol = 0;
2059 set_view_attr(view, LINE_CURSOR);
2060 line->selected = TRUE;
2061 view->ops->select(view, line);
2064 return view->ops->draw(view, line, lineno);
2068 redraw_view_dirty(struct view *view)
2073 for (lineno = 0; lineno < view->height; lineno++) {
2074 if (view->offset + lineno >= view->lines)
2076 if (!view->line[view->offset + lineno].dirty)
2079 if (!draw_view_line(view, lineno))
2085 wnoutrefresh(view->win);
2089 redraw_view_from(struct view *view, int lineno)
2091 assert(0 <= lineno && lineno < view->height);
2094 view->can_hscroll = FALSE;
2096 for (; lineno < view->height; lineno++) {
2097 if (!draw_view_line(view, lineno))
2101 wnoutrefresh(view->win);
2105 redraw_view(struct view *view)
2108 redraw_view_from(view, 0);
2113 update_view_title(struct view *view)
2115 char buf[SIZEOF_STR];
2116 char state[SIZEOF_STR];
2117 size_t bufpos = 0, statelen = 0;
2119 assert(view_is_displayed(view));
2121 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2122 unsigned int view_lines = view->offset + view->height;
2123 unsigned int lines = view->lines
2124 ? MIN(view_lines, view->lines) * 100 / view->lines
2127 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2136 time_t secs = time(NULL) - view->start_time;
2138 /* Three git seconds are a long time ... */
2140 string_format_from(state, &statelen, " loading %lds", secs);
2143 string_format_from(buf, &bufpos, "[%s]", view->name);
2144 if (*view->ref && bufpos < view->width) {
2145 size_t refsize = strlen(view->ref);
2146 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2148 if (minsize < view->width)
2149 refsize = view->width - minsize + 7;
2150 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2153 if (statelen && bufpos < view->width) {
2154 string_format_from(buf, &bufpos, "%s", state);
2157 if (view == display[current_view])
2158 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2160 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2162 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2163 wclrtoeol(view->title);
2164 wnoutrefresh(view->title);
2168 resize_display(void)
2171 struct view *base = display[0];
2172 struct view *view = display[1] ? display[1] : display[0];
2174 /* Setup window dimensions */
2176 getmaxyx(stdscr, base->height, base->width);
2178 /* Make room for the status window. */
2182 /* Horizontal split. */
2183 view->width = base->width;
2184 view->height = SCALE_SPLIT_VIEW(base->height);
2185 base->height -= view->height;
2187 /* Make room for the title bar. */
2191 /* Make room for the title bar. */
2196 foreach_displayed_view (view, i) {
2198 view->win = newwin(view->height, 0, offset, 0);
2200 die("Failed to create %s view", view->name);
2202 scrollok(view->win, FALSE);
2204 view->title = newwin(1, 0, offset + view->height, 0);
2206 die("Failed to create title window");
2209 wresize(view->win, view->height, view->width);
2210 mvwin(view->win, offset, 0);
2211 mvwin(view->title, offset + view->height, 0);
2214 offset += view->height + 1;
2219 redraw_display(bool clear)
2224 foreach_displayed_view (view, i) {
2228 update_view_title(view);
2233 toggle_view_option(bool *option, const char *help)
2236 redraw_display(FALSE);
2237 report("%sabling %s", *option ? "En" : "Dis", help);
2244 /* Scrolling backend */
2246 do_scroll_view(struct view *view, int lines)
2248 bool redraw_current_line = FALSE;
2250 /* The rendering expects the new offset. */
2251 view->offset += lines;
2253 assert(0 <= view->offset && view->offset < view->lines);
2256 /* Move current line into the view. */
2257 if (view->lineno < view->offset) {
2258 view->lineno = view->offset;
2259 redraw_current_line = TRUE;
2260 } else if (view->lineno >= view->offset + view->height) {
2261 view->lineno = view->offset + view->height - 1;
2262 redraw_current_line = TRUE;
2265 assert(view->offset <= view->lineno && view->lineno < view->lines);
2267 /* Redraw the whole screen if scrolling is pointless. */
2268 if (view->height < ABS(lines)) {
2272 int line = lines > 0 ? view->height - lines : 0;
2273 int end = line + ABS(lines);
2275 scrollok(view->win, TRUE);
2276 wscrl(view->win, lines);
2277 scrollok(view->win, FALSE);
2279 while (line < end && draw_view_line(view, line))
2282 if (redraw_current_line)
2283 draw_view_line(view, view->lineno - view->offset);
2284 wnoutrefresh(view->win);
2287 view->has_scrolled = TRUE;
2291 /* Scroll frontend */
2293 scroll_view(struct view *view, enum request request)
2297 assert(view_is_displayed(view));
2300 case REQ_SCROLL_LEFT:
2301 if (view->yoffset == 0) {
2302 report("Cannot scroll beyond the first column");
2305 if (view->yoffset <= SCROLL_INTERVAL)
2308 view->yoffset -= SCROLL_INTERVAL;
2309 redraw_view_from(view, 0);
2312 case REQ_SCROLL_RIGHT:
2313 if (!view->can_hscroll) {
2314 report("Cannot scroll beyond the last column");
2317 view->yoffset += SCROLL_INTERVAL;
2321 case REQ_SCROLL_PAGE_DOWN:
2322 lines = view->height;
2323 case REQ_SCROLL_LINE_DOWN:
2324 if (view->offset + lines > view->lines)
2325 lines = view->lines - view->offset;
2327 if (lines == 0 || view->offset + view->height >= view->lines) {
2328 report("Cannot scroll beyond the last line");
2333 case REQ_SCROLL_PAGE_UP:
2334 lines = view->height;
2335 case REQ_SCROLL_LINE_UP:
2336 if (lines > view->offset)
2337 lines = view->offset;
2340 report("Cannot scroll beyond the first line");
2348 die("request %d not handled in switch", request);
2351 do_scroll_view(view, lines);
2356 move_view(struct view *view, enum request request)
2358 int scroll_steps = 0;
2362 case REQ_MOVE_FIRST_LINE:
2363 steps = -view->lineno;
2366 case REQ_MOVE_LAST_LINE:
2367 steps = view->lines - view->lineno - 1;
2370 case REQ_MOVE_PAGE_UP:
2371 steps = view->height > view->lineno
2372 ? -view->lineno : -view->height;
2375 case REQ_MOVE_PAGE_DOWN:
2376 steps = view->lineno + view->height >= view->lines
2377 ? view->lines - view->lineno - 1 : view->height;
2389 die("request %d not handled in switch", request);
2392 if (steps <= 0 && view->lineno == 0) {
2393 report("Cannot move beyond the first line");
2396 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2397 report("Cannot move beyond the last line");
2401 /* Move the current line */
2402 view->lineno += steps;
2403 assert(0 <= view->lineno && view->lineno < view->lines);
2405 /* Check whether the view needs to be scrolled */
2406 if (view->lineno < view->offset ||
2407 view->lineno >= view->offset + view->height) {
2408 scroll_steps = steps;
2409 if (steps < 0 && -steps > view->offset) {
2410 scroll_steps = -view->offset;
2412 } else if (steps > 0) {
2413 if (view->lineno == view->lines - 1 &&
2414 view->lines > view->height) {
2415 scroll_steps = view->lines - view->offset - 1;
2416 if (scroll_steps >= view->height)
2417 scroll_steps -= view->height - 1;
2422 if (!view_is_displayed(view)) {
2423 view->offset += scroll_steps;
2424 assert(0 <= view->offset && view->offset < view->lines);
2425 view->ops->select(view, &view->line[view->lineno]);
2429 /* Repaint the old "current" line if we be scrolling */
2430 if (ABS(steps) < view->height)
2431 draw_view_line(view, view->lineno - steps - view->offset);
2434 do_scroll_view(view, scroll_steps);
2438 /* Draw the current line */
2439 draw_view_line(view, view->lineno - view->offset);
2441 wnoutrefresh(view->win);
2450 static void search_view(struct view *view, enum request request);
2453 select_view_line(struct view *view, unsigned long lineno)
2455 if (lineno - view->offset >= view->height) {
2456 view->offset = lineno;
2457 view->lineno = lineno;
2458 if (view_is_displayed(view))
2462 unsigned long old_lineno = view->lineno - view->offset;
2464 view->lineno = lineno;
2465 if (view_is_displayed(view)) {
2466 draw_view_line(view, old_lineno);
2467 draw_view_line(view, view->lineno - view->offset);
2468 wnoutrefresh(view->win);
2470 view->ops->select(view, &view->line[view->lineno]);
2476 find_next(struct view *view, enum request request)
2478 unsigned long lineno = view->lineno;
2483 report("No previous search");
2485 search_view(view, request);
2495 case REQ_SEARCH_BACK:
2504 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2505 lineno += direction;
2507 /* Note, lineno is unsigned long so will wrap around in which case it
2508 * will become bigger than view->lines. */
2509 for (; lineno < view->lines; lineno += direction) {
2510 if (view->ops->grep(view, &view->line[lineno])) {
2511 select_view_line(view, lineno);
2512 report("Line %ld matches '%s'", lineno + 1, view->grep);
2517 report("No match found for '%s'", view->grep);
2521 search_view(struct view *view, enum request request)
2526 regfree(view->regex);
2529 view->regex = calloc(1, sizeof(*view->regex));
2534 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2535 if (regex_err != 0) {
2536 char buf[SIZEOF_STR] = "unknown error";
2538 regerror(regex_err, view->regex, buf, sizeof(buf));
2539 report("Search failed: %s", buf);
2543 string_copy(view->grep, opt_search);
2545 find_next(view, request);
2549 * Incremental updating
2553 reset_view(struct view *view)
2557 for (i = 0; i < view->lines; i++)
2558 free(view->line[i].data);
2561 view->p_offset = view->offset;
2562 view->p_yoffset = view->yoffset;
2563 view->p_lineno = view->lineno;
2570 view->line_alloc = 0;
2572 view->update_secs = 0;
2576 free_argv(const char *argv[])
2580 for (argc = 0; argv[argc]; argc++)
2581 free((void *) argv[argc]);
2585 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2587 char buf[SIZEOF_STR];
2589 bool noreplace = flags == FORMAT_NONE;
2591 free_argv(dst_argv);
2593 for (argc = 0; src_argv[argc]; argc++) {
2594 const char *arg = src_argv[argc];
2598 char *next = strstr(arg, "%(");
2599 int len = next - arg;
2602 if (!next || noreplace) {
2603 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2608 } else if (!prefixcmp(next, "%(directory)")) {
2611 } else if (!prefixcmp(next, "%(file)")) {
2614 } else if (!prefixcmp(next, "%(ref)")) {
2615 value = *opt_ref ? opt_ref : "HEAD";
2617 } else if (!prefixcmp(next, "%(head)")) {
2620 } else if (!prefixcmp(next, "%(commit)")) {
2623 } else if (!prefixcmp(next, "%(blob)")) {
2627 report("Unknown replacement: `%s`", next);
2631 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2634 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2637 dst_argv[argc] = strdup(buf);
2638 if (!dst_argv[argc])
2642 dst_argv[argc] = NULL;
2644 return src_argv[argc] == NULL;
2648 restore_view_position(struct view *view)
2650 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2653 /* Changing the view position cancels the restoring. */
2654 /* FIXME: Changing back to the first line is not detected. */
2655 if (view->offset != 0 || view->lineno != 0) {
2656 view->p_restore = FALSE;
2660 if (view->p_lineno >= view->lines) {
2661 view->p_lineno = view->lines > 0 ? view->lines - 1 : 0;
2662 if (view->p_offset >= view->p_lineno) {
2663 unsigned long half = view->height / 2;
2665 if (view->p_lineno > half)
2666 view->p_offset = view->p_lineno - half;
2672 if (view_is_displayed(view) &&
2673 view->offset != view->p_offset &&
2674 view->lineno != view->p_lineno)
2677 view->offset = view->p_offset;
2678 view->yoffset = view->p_yoffset;
2679 view->lineno = view->p_lineno;
2680 view->p_restore = FALSE;
2686 end_update(struct view *view, bool force)
2690 while (!view->ops->read(view, NULL))
2693 set_nonblocking_input(FALSE);
2695 kill_io(view->pipe);
2696 done_io(view->pipe);
2701 setup_update(struct view *view, const char *vid)
2703 set_nonblocking_input(TRUE);
2705 string_copy_rev(view->vid, vid);
2706 view->pipe = &view->io;
2707 view->start_time = time(NULL);
2711 prepare_update(struct view *view, const char *argv[], const char *dir,
2712 enum format_flags flags)
2715 end_update(view, TRUE);
2716 return init_io_rd(&view->io, argv, dir, flags);
2720 prepare_update_file(struct view *view, const char *name)
2723 end_update(view, TRUE);
2724 return io_open(&view->io, name);
2728 begin_update(struct view *view, bool refresh)
2731 end_update(view, TRUE);
2734 if (!start_io(&view->io))
2738 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2741 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2744 /* Put the current ref_* value to the view title ref
2745 * member. This is needed by the blob view. Most other
2746 * views sets it automatically after loading because the
2747 * first line is a commit line. */
2748 string_copy_rev(view->ref, view->id);
2751 setup_update(view, view->id);
2756 #define ITEM_CHUNK_SIZE 256
2758 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2760 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2761 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2763 if (mem == NULL || num_chunks != num_chunks_new) {
2764 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2765 mem = realloc(mem, *size * item_size);
2771 static struct line *
2772 realloc_lines(struct view *view, size_t line_size)
2774 size_t alloc = view->line_alloc;
2775 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2776 sizeof(*view->line));
2782 view->line_alloc = alloc;
2787 update_view(struct view *view)
2789 char out_buffer[BUFSIZ * 2];
2791 /* Clear the view and redraw everything since the tree sorting
2792 * might have rearranged things. */
2793 bool redraw = view->lines == 0;
2794 bool can_read = TRUE;
2799 if (!io_can_read(view->pipe)) {
2800 if (view->lines == 0) {
2801 time_t secs = time(NULL) - view->start_time;
2803 if (secs > 1 && secs > view->update_secs) {
2804 if (view->update_secs == 0)
2806 update_view_title(view);
2807 view->update_secs = secs;
2813 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2814 if (opt_iconv != ICONV_NONE) {
2815 ICONV_CONST char *inbuf = line;
2816 size_t inlen = strlen(line) + 1;
2818 char *outbuf = out_buffer;
2819 size_t outlen = sizeof(out_buffer);
2823 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2824 if (ret != (size_t) -1)
2828 if (!view->ops->read(view, line)) {
2829 report("Allocation failure");
2830 end_update(view, TRUE);
2836 unsigned long lines = view->lines;
2839 for (digits = 0; lines; digits++)
2842 /* Keep the displayed view in sync with line number scaling. */
2843 if (digits != view->digits) {
2844 view->digits = digits;
2845 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2850 if (io_error(view->pipe)) {
2851 report("Failed to read: %s", io_strerror(view->pipe));
2852 end_update(view, TRUE);
2854 } else if (io_eof(view->pipe)) {
2856 end_update(view, FALSE);
2859 if (restore_view_position(view))
2862 if (!view_is_displayed(view))
2866 redraw_view_from(view, 0);
2868 redraw_view_dirty(view);
2870 /* Update the title _after_ the redraw so that if the redraw picks up a
2871 * commit reference in view->ref it'll be available here. */
2872 update_view_title(view);
2876 static struct line *
2877 add_line_data(struct view *view, void *data, enum line_type type)
2881 if (!realloc_lines(view, view->lines + 1))
2884 line = &view->line[view->lines++];
2885 memset(line, 0, sizeof(*line));
2893 static struct line *
2894 add_line_text(struct view *view, const char *text, enum line_type type)
2896 char *data = text ? strdup(text) : NULL;
2898 return data ? add_line_data(view, data, type) : NULL;
2901 static struct line *
2902 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2904 char buf[SIZEOF_STR];
2907 va_start(args, fmt);
2908 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2912 return buf[0] ? add_line_text(view, buf, type) : NULL;
2920 OPEN_DEFAULT = 0, /* Use default view switching. */
2921 OPEN_SPLIT = 1, /* Split current view. */
2922 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2923 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2924 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2925 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2926 OPEN_PREPARED = 32, /* Open already prepared command. */
2930 open_view(struct view *prev, enum request request, enum open_flags flags)
2932 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2933 bool split = !!(flags & OPEN_SPLIT);
2934 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2935 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2936 struct view *view = VIEW(request);
2937 int nviews = displayed_views();
2938 struct view *base_view = display[0];
2940 if (view == prev && nviews == 1 && !reload) {
2941 report("Already in %s view", view->name);
2945 if (view->git_dir && !opt_git_dir[0]) {
2946 report("The %s view is disabled in pager view", view->name);
2954 } else if (!nomaximize) {
2955 /* Maximize the current view. */
2956 memset(display, 0, sizeof(display));
2958 display[current_view] = view;
2961 /* Resize the view when switching between split- and full-screen,
2962 * or when switching between two different full-screen views. */
2963 if (nviews != displayed_views() ||
2964 (nviews == 1 && base_view != display[0]))
2967 if (view->ops->open) {
2969 end_update(view, TRUE);
2970 if (!view->ops->open(view)) {
2971 report("Failed to load %s view", view->name);
2974 restore_view_position(view);
2976 } else if ((reload || strcmp(view->vid, view->id)) &&
2977 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2978 report("Failed to load %s view", view->name);
2982 if (split && prev->lineno - prev->offset >= prev->height) {
2983 /* Take the title line into account. */
2984 int lines = prev->lineno - prev->offset - prev->height + 1;
2986 /* Scroll the view that was split if the current line is
2987 * outside the new limited view. */
2988 do_scroll_view(prev, lines);
2991 if (prev && view != prev) {
2992 if (split && !backgrounded) {
2993 /* "Blur" the previous view. */
2994 update_view_title(prev);
2997 view->parent = prev;
3000 if (view->pipe && view->lines == 0) {
3001 /* Clear the old view and let the incremental updating refill
3004 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
3006 } else if (view_is_displayed(view)) {
3011 /* If the view is backgrounded the above calls to report()
3012 * won't redraw the view title. */
3014 update_view_title(view);
3018 open_external_viewer(const char *argv[], const char *dir)
3020 def_prog_mode(); /* save current tty modes */
3021 endwin(); /* restore original tty modes */
3022 run_io_fg(argv, dir);
3023 fprintf(stderr, "Press Enter to continue");
3026 redraw_display(TRUE);
3030 open_mergetool(const char *file)
3032 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
3034 open_external_viewer(mergetool_argv, opt_cdup);
3038 open_editor(bool from_root, const char *file)
3040 const char *editor_argv[] = { "vi", file, NULL };
3043 editor = getenv("GIT_EDITOR");
3044 if (!editor && *opt_editor)
3045 editor = opt_editor;
3047 editor = getenv("VISUAL");
3049 editor = getenv("EDITOR");
3053 editor_argv[0] = editor;
3054 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3058 open_run_request(enum request request)
3060 struct run_request *req = get_run_request(request);
3061 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3064 report("Unknown run request");
3068 if (format_argv(argv, req->argv, FORMAT_ALL))
3069 open_external_viewer(argv, NULL);
3074 * User request switch noodle
3078 view_driver(struct view *view, enum request request)
3082 if (request == REQ_NONE) {
3087 if (request > REQ_NONE) {
3088 open_run_request(request);
3089 /* FIXME: When all views can refresh always do this. */
3090 if (view == VIEW(REQ_VIEW_STATUS) ||
3091 view == VIEW(REQ_VIEW_MAIN) ||
3092 view == VIEW(REQ_VIEW_LOG) ||
3093 view == VIEW(REQ_VIEW_STAGE))
3094 request = REQ_REFRESH;
3099 if (view && view->lines) {
3100 request = view->ops->request(view, request, &view->line[view->lineno]);
3101 if (request == REQ_NONE)
3108 case REQ_MOVE_PAGE_UP:
3109 case REQ_MOVE_PAGE_DOWN:
3110 case REQ_MOVE_FIRST_LINE:
3111 case REQ_MOVE_LAST_LINE:
3112 move_view(view, request);
3115 case REQ_SCROLL_LEFT:
3116 case REQ_SCROLL_RIGHT:
3117 case REQ_SCROLL_LINE_DOWN:
3118 case REQ_SCROLL_LINE_UP:
3119 case REQ_SCROLL_PAGE_DOWN:
3120 case REQ_SCROLL_PAGE_UP:
3121 scroll_view(view, request);
3124 case REQ_VIEW_BLAME:
3126 report("No file chosen, press %s to open tree view",
3127 get_key(REQ_VIEW_TREE));
3130 open_view(view, request, OPEN_DEFAULT);
3135 report("No file chosen, press %s to open tree view",
3136 get_key(REQ_VIEW_TREE));
3139 open_view(view, request, OPEN_DEFAULT);
3142 case REQ_VIEW_PAGER:
3143 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3144 report("No pager content, press %s to run command from prompt",
3145 get_key(REQ_PROMPT));
3148 open_view(view, request, OPEN_DEFAULT);
3151 case REQ_VIEW_STAGE:
3152 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3153 report("No stage content, press %s to open the status view and choose file",
3154 get_key(REQ_VIEW_STATUS));
3157 open_view(view, request, OPEN_DEFAULT);
3160 case REQ_VIEW_STATUS:
3161 if (opt_is_inside_work_tree == FALSE) {
3162 report("The status view requires a working tree");
3165 open_view(view, request, OPEN_DEFAULT);
3173 open_view(view, request, OPEN_DEFAULT);
3178 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3180 if ((view == VIEW(REQ_VIEW_DIFF) &&
3181 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3182 (view == VIEW(REQ_VIEW_DIFF) &&
3183 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3184 (view == VIEW(REQ_VIEW_STAGE) &&
3185 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3186 (view == VIEW(REQ_VIEW_BLOB) &&
3187 view->parent == VIEW(REQ_VIEW_TREE))) {
3190 view = view->parent;
3191 line = view->lineno;
3192 move_view(view, request);
3193 if (view_is_displayed(view))
3194 update_view_title(view);
3195 if (line != view->lineno)
3196 view->ops->request(view, REQ_ENTER,
3197 &view->line[view->lineno]);
3200 move_view(view, request);
3206 int nviews = displayed_views();
3207 int next_view = (current_view + 1) % nviews;
3209 if (next_view == current_view) {
3210 report("Only one view is displayed");
3214 current_view = next_view;
3215 /* Blur out the title of the previous view. */
3216 update_view_title(view);
3221 report("Refreshing is not yet supported for the %s view", view->name);
3225 if (displayed_views() == 2)
3226 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3229 case REQ_TOGGLE_LINENO:
3230 toggle_view_option(&opt_line_number, "line numbers");
3233 case REQ_TOGGLE_DATE:
3234 toggle_view_option(&opt_date, "date display");
3237 case REQ_TOGGLE_AUTHOR:
3238 toggle_view_option(&opt_author, "author display");
3241 case REQ_TOGGLE_REV_GRAPH:
3242 toggle_view_option(&opt_rev_graph, "revision graph display");
3245 case REQ_TOGGLE_REFS:
3246 toggle_view_option(&opt_show_refs, "reference display");
3250 case REQ_SEARCH_BACK:
3251 search_view(view, request);
3256 find_next(view, request);
3259 case REQ_STOP_LOADING:
3260 for (i = 0; i < ARRAY_SIZE(views); i++) {
3263 report("Stopped loading the %s view", view->name),
3264 end_update(view, TRUE);
3268 case REQ_SHOW_VERSION:
3269 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3272 case REQ_SCREEN_REDRAW:
3273 redraw_display(TRUE);
3277 report("Nothing to edit");
3281 report("Nothing to enter");
3284 case REQ_VIEW_CLOSE:
3285 /* XXX: Mark closed views by letting view->parent point to the
3286 * view itself. Parents to closed view should never be
3289 view->parent->parent != view->parent) {
3290 memset(display, 0, sizeof(display));
3292 display[current_view] = view->parent;
3293 view->parent = view;
3295 redraw_display(FALSE);
3304 report("Unknown key, press 'h' for help");
3313 * View backend utilities
3316 /* Parse author lines where the name may be empty:
3317 * author <email@address.tld> 1138474660 +0100
3320 parse_author_line(char *ident, char *author, size_t authorsize, struct tm *tm)
3322 char *nameend = strchr(ident, '<');
3323 char *emailend = strchr(ident, '>');
3325 if (nameend && emailend)
3326 *nameend = *emailend = 0;
3327 ident = chomp_string(ident);
3330 ident = chomp_string(nameend + 1);
3335 string_ncopy_do(author, authorsize, ident, strlen(ident));
3337 /* Parse epoch and timezone */
3338 if (emailend && emailend[1] == ' ') {
3339 char *secs = emailend + 2;
3340 char *zone = strchr(secs, ' ');
3341 time_t time = (time_t) atol(secs);
3343 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
3347 tz = ('0' - zone[1]) * 60 * 60 * 10;
3348 tz += ('0' - zone[2]) * 60 * 60;
3349 tz += ('0' - zone[3]) * 60;
3350 tz += ('0' - zone[4]) * 60;
3358 gmtime_r(&time, tm);
3362 static enum input_status
3363 select_commit_parent_handler(void *data, char *buf, int c)
3365 size_t parents = *(size_t *) data;
3372 parent = atoi(buf) * 10;
3375 if (parent > parents)
3381 select_commit_parent(const char *id, char rev[SIZEOF_REV])
3383 char buf[SIZEOF_STR * 4];
3384 const char *revlist_argv[] = {
3385 "git", "rev-list", "-1", "--parents", id, NULL
3389 if (!run_io_buf(revlist_argv, buf, sizeof(buf)) ||
3390 !*chomp_string(buf) ||
3391 (parents = (strlen(buf) / 40) - 1) < 0) {
3392 report("Failed to get parent information");
3395 } else if (parents == 0) {
3396 report("The selected commit has no parents");
3401 char prompt[SIZEOF_STR];
3404 if (!string_format(prompt, "Which parent? [1..%d] ", parents))
3406 result = prompt_input(prompt, select_commit_parent_handler, &parents);
3409 parents = atoi(result);
3412 string_copy_rev(rev, &buf[41 * parents]);
3421 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3423 char text[SIZEOF_STR];
3425 if (opt_line_number && draw_lineno(view, lineno))
3428 string_expand(text, sizeof(text), line->data, opt_tab_size);
3429 draw_text(view, line->type, text, TRUE);
3434 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3436 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3437 char refbuf[SIZEOF_STR];
3440 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3441 ref = chomp_string(refbuf);
3446 /* This is the only fatal call, since it can "corrupt" the buffer. */
3447 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3454 add_pager_refs(struct view *view, struct line *line)
3456 char buf[SIZEOF_STR];
3457 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3459 size_t bufpos = 0, refpos = 0;
3460 const char *sep = "Refs: ";
3461 bool is_tag = FALSE;
3463 assert(line->type == LINE_COMMIT);
3465 refs = get_refs(commit_id);
3467 if (view == VIEW(REQ_VIEW_DIFF))
3468 goto try_add_describe_ref;
3473 struct ref *ref = refs[refpos];
3474 const char *fmt = ref->tag ? "%s[%s]" :
3475 ref->remote ? "%s<%s>" : "%s%s";
3477 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3482 } while (refs[refpos++]->next);
3484 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3485 try_add_describe_ref:
3486 /* Add <tag>-g<commit_id> "fake" reference. */
3487 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3494 add_line_text(view, buf, LINE_PP_REFS);
3498 pager_read(struct view *view, char *data)
3505 line = add_line_text(view, data, get_line_type(data));
3509 if (line->type == LINE_COMMIT &&
3510 (view == VIEW(REQ_VIEW_DIFF) ||
3511 view == VIEW(REQ_VIEW_LOG)))
3512 add_pager_refs(view, line);
3518 pager_request(struct view *view, enum request request, struct line *line)
3522 if (request != REQ_ENTER)
3525 if (line->type == LINE_COMMIT &&
3526 (view == VIEW(REQ_VIEW_LOG) ||
3527 view == VIEW(REQ_VIEW_PAGER))) {
3528 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3532 /* Always scroll the view even if it was split. That way
3533 * you can use Enter to scroll through the log view and
3534 * split open each commit diff. */
3535 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3537 /* FIXME: A minor workaround. Scrolling the view will call report("")
3538 * but if we are scrolling a non-current view this won't properly
3539 * update the view title. */
3541 update_view_title(view);
3547 pager_grep(struct view *view, struct line *line)
3550 char *text = line->data;
3555 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3562 pager_select(struct view *view, struct line *line)
3564 if (line->type == LINE_COMMIT) {
3565 char *text = (char *)line->data + STRING_SIZE("commit ");
3567 if (view != VIEW(REQ_VIEW_PAGER))
3568 string_copy_rev(view->ref, text);
3569 string_copy_rev(ref_commit, text);
3573 static struct view_ops pager_ops = {
3584 static const char *log_argv[SIZEOF_ARG] = {
3585 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3589 log_request(struct view *view, enum request request, struct line *line)
3594 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3597 return pager_request(view, request, line);
3601 static struct view_ops log_ops = {
3612 static const char *diff_argv[SIZEOF_ARG] = {
3613 "git", "show", "--pretty=fuller", "--no-color", "--root",
3614 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3617 static struct view_ops diff_ops = {
3633 help_open(struct view *view)
3635 char buf[SIZEOF_STR];
3639 if (view->lines > 0)
3642 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3644 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3647 if (req_info[i].request == REQ_NONE)
3650 if (!req_info[i].request) {
3651 add_line_text(view, "", LINE_DEFAULT);
3652 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3656 key = get_key(req_info[i].request);
3658 key = "(no key defined)";
3660 for (bufpos = 0; bufpos <= req_info[i].namelen; bufpos++) {
3661 buf[bufpos] = tolower(req_info[i].name[bufpos]);
3662 if (buf[bufpos] == '_')
3666 add_line_format(view, LINE_DEFAULT, " %-25s %-20s %s",
3667 key, buf, req_info[i].help);
3671 add_line_text(view, "", LINE_DEFAULT);
3672 add_line_text(view, "External commands:", LINE_DEFAULT);
3675 for (i = 0; i < run_requests; i++) {
3676 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3683 key = get_key_name(req->key);
3685 key = "(no key defined)";
3687 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3688 if (!string_format_from(buf, &bufpos, "%s%s",
3689 argc ? " " : "", req->argv[argc]))
3692 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3693 keymap_table[req->keymap].name, key, buf);
3699 static struct view_ops help_ops = {
3715 struct tree_stack_entry {
3716 struct tree_stack_entry *prev; /* Entry below this in the stack */
3717 unsigned long lineno; /* Line number to restore */
3718 char *name; /* Position of name in opt_path */
3721 /* The top of the path stack. */
3722 static struct tree_stack_entry *tree_stack = NULL;
3723 unsigned long tree_lineno = 0;
3726 pop_tree_stack_entry(void)
3728 struct tree_stack_entry *entry = tree_stack;
3730 tree_lineno = entry->lineno;
3732 tree_stack = entry->prev;
3737 push_tree_stack_entry(const char *name, unsigned long lineno)
3739 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3740 size_t pathlen = strlen(opt_path);
3745 entry->prev = tree_stack;
3746 entry->name = opt_path + pathlen;
3749 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3750 pop_tree_stack_entry();
3754 /* Move the current line to the first tree entry. */
3756 entry->lineno = lineno;
3759 /* Parse output from git-ls-tree(1):
3761 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3762 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3763 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3764 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3767 #define SIZEOF_TREE_ATTR \
3768 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3770 #define SIZEOF_TREE_MODE \
3771 STRING_SIZE("100644 ")
3773 #define TREE_ID_OFFSET \
3774 STRING_SIZE("100644 blob ")
3777 char id[SIZEOF_REV];
3779 struct tm time; /* Date from the author ident. */
3780 char author[75]; /* Author of the commit. */
3785 tree_path(struct line *line)
3787 return ((struct tree_entry *) line->data)->name;
3792 tree_compare_entry(struct line *line1, struct line *line2)
3794 if (line1->type != line2->type)
3795 return line1->type == LINE_TREE_DIR ? -1 : 1;
3796 return strcmp(tree_path(line1), tree_path(line2));
3799 static struct line *
3800 tree_entry(struct view *view, enum line_type type, const char *path,
3801 const char *mode, const char *id)
3803 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3804 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3806 if (!entry || !line) {
3811 strncpy(entry->name, path, strlen(path));
3813 entry->mode = strtoul(mode, NULL, 8);
3815 string_copy_rev(entry->id, id);
3821 tree_read_date(struct view *view, char *text, bool *read_date)
3823 static char author_name[SIZEOF_STR];
3824 static struct tm author_time;
3826 if (!text && *read_date) {
3831 char *path = *opt_path ? opt_path : ".";
3832 /* Find next entry to process */
3833 const char *log_file[] = {
3834 "git", "log", "--no-color", "--pretty=raw",
3835 "--cc", "--raw", view->id, "--", path, NULL
3840 tree_entry(view, LINE_TREE_PARENT, opt_path, NULL, NULL);
3841 report("Tree is empty");
3845 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3846 report("Failed to load tree data");
3850 done_io(view->pipe);
3855 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3856 parse_author_line(text + STRING_SIZE("author "),
3857 author_name, sizeof(author_name), &author_time);
3859 } else if (*text == ':') {
3861 size_t annotated = 1;
3864 pos = strchr(text, '\t');
3868 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3869 text += strlen(opt_prefix);
3870 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3871 text += strlen(opt_path);
3872 pos = strchr(text, '/');
3876 for (i = 1; i < view->lines; i++) {
3877 struct line *line = &view->line[i];
3878 struct tree_entry *entry = line->data;
3880 annotated += !!*entry->author;
3881 if (*entry->author || strcmp(entry->name, text))
3884 string_copy(entry->author, author_name);
3885 memcpy(&entry->time, &author_time, sizeof(entry->time));
3890 if (annotated == view->lines)
3891 kill_io(view->pipe);
3897 tree_read(struct view *view, char *text)
3899 static bool read_date = FALSE;
3900 struct tree_entry *data;
3901 struct line *entry, *line;
3902 enum line_type type;
3903 size_t textlen = text ? strlen(text) : 0;
3904 char *path = text + SIZEOF_TREE_ATTR;
3906 if (read_date || !text)
3907 return tree_read_date(view, text, &read_date);
3909 if (textlen <= SIZEOF_TREE_ATTR)
3911 if (view->lines == 0 &&
3912 !tree_entry(view, LINE_TREE_PARENT, opt_path, NULL, NULL))
3915 /* Strip the path part ... */
3917 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3918 size_t striplen = strlen(opt_path);
3920 if (pathlen > striplen)
3921 memmove(path, path + striplen,
3922 pathlen - striplen + 1);
3924 /* Insert "link" to parent directory. */
3925 if (view->lines == 1 &&
3926 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3930 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
3931 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3936 /* Skip "Directory ..." and ".." line. */
3937 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3938 if (tree_compare_entry(line, entry) <= 0)
3941 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3945 for (; line <= entry; line++)
3946 line->dirty = line->cleareol = 1;
3950 if (tree_lineno > view->lineno) {
3951 view->lineno = tree_lineno;
3959 tree_draw(struct view *view, struct line *line, unsigned int lineno)
3961 struct tree_entry *entry = line->data;
3963 if (line->type == LINE_TREE_PARENT) {
3964 if (draw_text(view, line->type, "Directory path /", TRUE))
3967 char mode[11] = "-r--r--r--";
3969 if (S_ISDIR(entry->mode)) {
3970 mode[3] = mode[6] = mode[9] = 'x';
3973 if (S_ISLNK(entry->mode))
3975 if (entry->mode & S_IWUSR)
3977 if (entry->mode & S_IXUSR)
3979 if (entry->mode & S_IXGRP)
3981 if (entry->mode & S_IXOTH)
3983 if (draw_field(view, LINE_TREE_MODE, mode, 11, TRUE))
3986 if (opt_author && draw_author(view, entry->author))
3989 if (opt_date && draw_date(view, *entry->author ? &entry->time : NULL))
3992 if (draw_text(view, line->type, entry->name, TRUE))
4000 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
4001 int fd = mkstemp(file);
4004 report("Failed to create temporary file");
4005 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
4006 report("Failed to save blob data to file");
4008 open_editor(FALSE, file);
4014 tree_request(struct view *view, enum request request, struct line *line)
4016 enum open_flags flags;
4019 case REQ_VIEW_BLAME:
4020 if (line->type != LINE_TREE_FILE) {
4021 report("Blame only supported for files");
4025 string_copy(opt_ref, view->vid);
4029 if (line->type != LINE_TREE_FILE) {
4030 report("Edit only supported for files");
4031 } else if (!is_head_commit(view->vid)) {
4034 open_editor(TRUE, opt_file);
4040 /* quit view if at top of tree */
4041 return REQ_VIEW_CLOSE;
4044 line = &view->line[1];
4054 /* Cleanup the stack if the tree view is at a different tree. */
4055 while (!*opt_path && tree_stack)
4056 pop_tree_stack_entry();
4058 switch (line->type) {
4060 /* Depending on whether it is a subdir or parent (updir?) link
4061 * mangle the path buffer. */
4062 if (line == &view->line[1] && *opt_path) {
4063 pop_tree_stack_entry();
4066 const char *basename = tree_path(line);
4068 push_tree_stack_entry(basename, view->lineno);
4071 /* Trees and subtrees share the same ID, so they are not not
4072 * unique like blobs. */
4073 flags = OPEN_RELOAD;
4074 request = REQ_VIEW_TREE;
4077 case LINE_TREE_FILE:
4078 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4079 request = REQ_VIEW_BLOB;
4086 open_view(view, request, flags);
4087 if (request == REQ_VIEW_TREE)
4088 view->lineno = tree_lineno;
4094 tree_select(struct view *view, struct line *line)
4096 struct tree_entry *entry = line->data;
4098 if (line->type == LINE_TREE_FILE) {
4099 string_copy_rev(ref_blob, entry->id);
4100 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4102 } else if (line->type != LINE_TREE_DIR) {
4106 string_copy_rev(view->ref, entry->id);
4109 static const char *tree_argv[SIZEOF_ARG] = {
4110 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4113 static struct view_ops tree_ops = {
4125 blob_read(struct view *view, char *line)
4129 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4133 blob_request(struct view *view, enum request request, struct line *line)
4140 return pager_request(view, request, line);
4144 static const char *blob_argv[SIZEOF_ARG] = {
4145 "git", "cat-file", "blob", "%(blob)", NULL
4148 static struct view_ops blob_ops = {
4162 * Loading the blame view is a two phase job:
4164 * 1. File content is read either using opt_file from the
4165 * filesystem or using git-cat-file.
4166 * 2. Then blame information is incrementally added by
4167 * reading output from git-blame.
4170 static const char *blame_head_argv[] = {
4171 "git", "blame", "--incremental", "--", "%(file)", NULL
4174 static const char *blame_ref_argv[] = {
4175 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4178 static const char *blame_cat_file_argv[] = {
4179 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4182 struct blame_commit {
4183 char id[SIZEOF_REV]; /* SHA1 ID. */
4184 char title[128]; /* First line of the commit message. */
4185 char author[75]; /* Author of the commit. */
4186 struct tm time; /* Date from the author ident. */
4187 char filename[128]; /* Name of file. */
4188 bool has_previous; /* Was a "previous" line detected. */
4192 struct blame_commit *commit;
4197 blame_open(struct view *view)
4199 if (*opt_ref || !io_open(&view->io, opt_file)) {
4200 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4204 setup_update(view, opt_file);
4205 string_format(view->ref, "%s ...", opt_file);
4210 static struct blame_commit *
4211 get_blame_commit(struct view *view, const char *id)
4215 for (i = 0; i < view->lines; i++) {
4216 struct blame *blame = view->line[i].data;
4221 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4222 return blame->commit;
4226 struct blame_commit *commit = calloc(1, sizeof(*commit));
4229 string_ncopy(commit->id, id, SIZEOF_REV);
4235 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4237 const char *pos = *posref;
4240 pos = strchr(pos + 1, ' ');
4241 if (!pos || !isdigit(pos[1]))
4243 *number = atoi(pos + 1);
4244 if (*number < min || *number > max)
4251 static struct blame_commit *
4252 parse_blame_commit(struct view *view, const char *text, int *blamed)
4254 struct blame_commit *commit;
4255 struct blame *blame;
4256 const char *pos = text + SIZEOF_REV - 1;
4260 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
4263 if (!parse_number(&pos, &lineno, 1, view->lines) ||
4264 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4267 commit = get_blame_commit(view, text);
4273 struct line *line = &view->line[lineno + group - 1];
4276 blame->commit = commit;
4284 blame_read_file(struct view *view, const char *line, bool *read_file)
4287 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4290 if (view->lines == 0 && !view->parent)
4291 die("No blame exist for %s", view->vid);
4293 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4294 report("Failed to load blame data");
4298 done_io(view->pipe);
4304 size_t linelen = string_expand_length(line, opt_tab_size);
4305 struct blame *blame = malloc(sizeof(*blame) + linelen);
4310 blame->commit = NULL;
4311 string_expand(blame->text, linelen + 1, line, opt_tab_size);
4312 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4317 match_blame_header(const char *name, char **line)
4319 size_t namelen = strlen(name);
4320 bool matched = !strncmp(name, *line, namelen);
4329 blame_read(struct view *view, char *line)
4331 static struct blame_commit *commit = NULL;
4332 static int blamed = 0;
4333 static time_t author_time;
4334 static bool read_file = TRUE;
4337 return blame_read_file(view, line, &read_file);
4344 string_format(view->ref, "%s", view->vid);
4345 if (view_is_displayed(view)) {
4346 update_view_title(view);
4347 redraw_view_from(view, 0);
4353 commit = parse_blame_commit(view, line, &blamed);
4354 string_format(view->ref, "%s %2d%%", view->vid,
4355 view->lines ? blamed * 100 / view->lines : 0);
4357 } else if (match_blame_header("author ", &line)) {
4358 string_ncopy(commit->author, line, strlen(line));
4360 } else if (match_blame_header("author-time ", &line)) {
4361 author_time = (time_t) atol(line);
4363 } else if (match_blame_header("author-tz ", &line)) {
4366 tz = ('0' - line[1]) * 60 * 60 * 10;
4367 tz += ('0' - line[2]) * 60 * 60;
4368 tz += ('0' - line[3]) * 60;
4369 tz += ('0' - line[4]) * 60;
4375 gmtime_r(&author_time, &commit->time);
4377 } else if (match_blame_header("summary ", &line)) {
4378 string_ncopy(commit->title, line, strlen(line));
4380 } else if (match_blame_header("previous ", &line)) {
4381 commit->has_previous = TRUE;
4383 } else if (match_blame_header("filename ", &line)) {
4384 string_ncopy(commit->filename, line, strlen(line));
4392 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4394 struct blame *blame = line->data;
4395 struct tm *time = NULL;
4396 const char *id = NULL, *author = NULL;
4398 if (blame->commit && *blame->commit->filename) {
4399 id = blame->commit->id;
4400 author = blame->commit->author;
4401 time = &blame->commit->time;
4404 if (opt_date && draw_date(view, time))
4407 if (opt_author && draw_author(view, author))
4410 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4413 if (draw_lineno(view, lineno))
4416 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4421 check_blame_commit(struct blame *blame)
4424 report("Commit data not loaded yet");
4425 else if (!strcmp(blame->commit->id, NULL_ID))
4426 report("No commit exist for the selected line");
4433 blame_request(struct view *view, enum request request, struct line *line)
4435 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4436 struct blame *blame = line->data;
4439 case REQ_VIEW_BLAME:
4440 if (check_blame_commit(blame)) {
4441 string_copy(opt_ref, blame->commit->id);
4442 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4447 if (check_blame_commit(blame) &&
4448 select_commit_parent(blame->commit->id, opt_ref))
4449 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4453 if (!blame->commit) {
4454 report("No commit loaded yet");
4458 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4459 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4462 if (!strcmp(blame->commit->id, NULL_ID)) {
4463 struct view *diff = VIEW(REQ_VIEW_DIFF);
4464 const char *diff_index_argv[] = {
4465 "git", "diff-index", "--root", "--patch-with-stat",
4466 "-C", "-M", "HEAD", "--", view->vid, NULL
4469 if (!blame->commit->has_previous) {
4470 diff_index_argv[1] = "diff";
4471 diff_index_argv[2] = "--no-color";
4472 diff_index_argv[6] = "--";
4473 diff_index_argv[7] = "/dev/null";
4476 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4477 report("Failed to allocate diff command");
4480 flags |= OPEN_PREPARED;
4483 open_view(view, REQ_VIEW_DIFF, flags);
4484 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4485 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4496 blame_grep(struct view *view, struct line *line)
4498 struct blame *blame = line->data;
4499 struct blame_commit *commit = blame->commit;
4502 #define MATCH(text, on) \
4503 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4506 char buf[DATE_COLS + 1];
4508 if (MATCH(commit->title, 1) ||
4509 MATCH(commit->author, opt_author) ||
4510 MATCH(commit->id, opt_date))
4513 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4518 return MATCH(blame->text, 1);
4524 blame_select(struct view *view, struct line *line)
4526 struct blame *blame = line->data;
4527 struct blame_commit *commit = blame->commit;
4532 if (!strcmp(commit->id, NULL_ID))
4533 string_ncopy(ref_commit, "HEAD", 4);
4535 string_copy_rev(ref_commit, commit->id);
4538 static struct view_ops blame_ops = {
4557 char rev[SIZEOF_REV];
4558 char name[SIZEOF_STR];
4562 char rev[SIZEOF_REV];
4563 char name[SIZEOF_STR];
4567 static char status_onbranch[SIZEOF_STR];
4568 static struct status stage_status;
4569 static enum line_type stage_line_type;
4570 static size_t stage_chunks;
4571 static int *stage_chunk;
4573 /* This should work even for the "On branch" line. */
4575 status_has_none(struct view *view, struct line *line)
4577 return line < view->line + view->lines && !line[1].data;
4580 /* Get fields from the diff line:
4581 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4584 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4586 const char *old_mode = buf + 1;
4587 const char *new_mode = buf + 8;
4588 const char *old_rev = buf + 15;
4589 const char *new_rev = buf + 56;
4590 const char *status = buf + 97;
4593 old_mode[-1] != ':' ||
4594 new_mode[-1] != ' ' ||
4595 old_rev[-1] != ' ' ||
4596 new_rev[-1] != ' ' ||
4600 file->status = *status;
4602 string_copy_rev(file->old.rev, old_rev);
4603 string_copy_rev(file->new.rev, new_rev);
4605 file->old.mode = strtoul(old_mode, NULL, 8);
4606 file->new.mode = strtoul(new_mode, NULL, 8);
4608 file->old.name[0] = file->new.name[0] = 0;
4614 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4616 struct status *unmerged = NULL;
4620 if (!run_io(&io, argv, NULL, IO_RD))
4623 add_line_data(view, NULL, type);
4625 while ((buf = io_get(&io, 0, TRUE))) {
4626 struct status *file = unmerged;
4629 file = calloc(1, sizeof(*file));
4630 if (!file || !add_line_data(view, file, type))
4634 /* Parse diff info part. */
4636 file->status = status;
4638 string_copy(file->old.rev, NULL_ID);
4640 } else if (!file->status || file == unmerged) {
4641 if (!status_get_diff(file, buf, strlen(buf)))
4644 buf = io_get(&io, 0, TRUE);
4648 /* Collapse all 'M'odified entries that follow a
4649 * associated 'U'nmerged entry. */
4650 if (unmerged == file) {
4651 unmerged->status = 'U';
4653 } else if (file->status == 'U') {
4658 /* Grab the old name for rename/copy. */
4659 if (!*file->old.name &&
4660 (file->status == 'R' || file->status == 'C')) {
4661 string_ncopy(file->old.name, buf, strlen(buf));
4663 buf = io_get(&io, 0, TRUE);
4668 /* git-ls-files just delivers a NUL separated list of
4669 * file names similar to the second half of the
4670 * git-diff-* output. */
4671 string_ncopy(file->new.name, buf, strlen(buf));
4672 if (!*file->old.name)
4673 string_copy(file->old.name, file->new.name);
4677 if (io_error(&io)) {
4683 if (!view->line[view->lines - 1].data)
4684 add_line_data(view, NULL, LINE_STAT_NONE);
4690 /* Don't show unmerged entries in the staged section. */
4691 static const char *status_diff_index_argv[] = {
4692 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4693 "--cached", "-M", "HEAD", NULL
4696 static const char *status_diff_files_argv[] = {
4697 "git", "diff-files", "-z", NULL
4700 static const char *status_list_other_argv[] = {
4701 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4704 static const char *status_list_no_head_argv[] = {
4705 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4708 static const char *update_index_argv[] = {
4709 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4712 /* Restore the previous line number to stay in the context or select a
4713 * line with something that can be updated. */
4715 status_restore(struct view *view)
4717 if (view->p_lineno >= view->lines)
4718 view->p_lineno = view->lines - 1;
4719 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4721 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4724 /* If the above fails, always skip the "On branch" line. */
4725 if (view->p_lineno < view->lines)
4726 view->lineno = view->p_lineno;
4730 if (view->lineno < view->offset)
4731 view->offset = view->lineno;
4732 else if (view->offset + view->height <= view->lineno)
4733 view->offset = view->lineno - view->height + 1;
4735 view->p_restore = FALSE;
4738 /* First parse staged info using git-diff-index(1), then parse unstaged
4739 * info using git-diff-files(1), and finally untracked files using
4740 * git-ls-files(1). */
4742 status_open(struct view *view)
4746 add_line_data(view, NULL, LINE_STAT_HEAD);
4747 if (is_initial_commit())
4748 string_copy(status_onbranch, "Initial commit");
4749 else if (!*opt_head)
4750 string_copy(status_onbranch, "Not currently on any branch");
4751 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4754 run_io_bg(update_index_argv);
4756 if (is_initial_commit()) {
4757 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4759 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4763 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4764 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4767 /* Restore the exact position or use the specialized restore
4769 if (!view->p_restore)
4770 status_restore(view);
4775 status_draw(struct view *view, struct line *line, unsigned int lineno)
4777 struct status *status = line->data;
4778 enum line_type type;
4782 switch (line->type) {
4783 case LINE_STAT_STAGED:
4784 type = LINE_STAT_SECTION;
4785 text = "Changes to be committed:";
4788 case LINE_STAT_UNSTAGED:
4789 type = LINE_STAT_SECTION;
4790 text = "Changed but not updated:";
4793 case LINE_STAT_UNTRACKED:
4794 type = LINE_STAT_SECTION;
4795 text = "Untracked files:";
4798 case LINE_STAT_NONE:
4799 type = LINE_DEFAULT;
4800 text = " (no files)";
4803 case LINE_STAT_HEAD:
4804 type = LINE_STAT_HEAD;
4805 text = status_onbranch;
4812 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4814 buf[0] = status->status;
4815 if (draw_text(view, line->type, buf, TRUE))
4817 type = LINE_DEFAULT;
4818 text = status->new.name;
4821 draw_text(view, type, text, TRUE);
4826 status_enter(struct view *view, struct line *line)
4828 struct status *status = line->data;
4829 const char *oldpath = status ? status->old.name : NULL;
4830 /* Diffs for unmerged entries are empty when passing the new
4831 * path, so leave it empty. */
4832 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4834 enum open_flags split;
4835 struct view *stage = VIEW(REQ_VIEW_STAGE);
4837 if (line->type == LINE_STAT_NONE ||
4838 (!status && line[1].type == LINE_STAT_NONE)) {
4839 report("No file to diff");
4843 switch (line->type) {
4844 case LINE_STAT_STAGED:
4845 if (is_initial_commit()) {
4846 const char *no_head_diff_argv[] = {
4847 "git", "diff", "--no-color", "--patch-with-stat",
4848 "--", "/dev/null", newpath, NULL
4851 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4854 const char *index_show_argv[] = {
4855 "git", "diff-index", "--root", "--patch-with-stat",
4856 "-C", "-M", "--cached", "HEAD", "--",
4857 oldpath, newpath, NULL
4860 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4865 info = "Staged changes to %s";
4867 info = "Staged changes";
4870 case LINE_STAT_UNSTAGED:
4872 const char *files_show_argv[] = {
4873 "git", "diff-files", "--root", "--patch-with-stat",
4874 "-C", "-M", "--", oldpath, newpath, NULL
4877 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4880 info = "Unstaged changes to %s";
4882 info = "Unstaged changes";
4885 case LINE_STAT_UNTRACKED:
4887 report("No file to show");
4891 if (!suffixcmp(status->new.name, -1, "/")) {
4892 report("Cannot display a directory");
4896 if (!prepare_update_file(stage, newpath))
4898 info = "Untracked file %s";
4901 case LINE_STAT_HEAD:
4905 die("line type %d not handled in switch", line->type);
4908 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4909 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
4910 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4912 stage_status = *status;
4914 memset(&stage_status, 0, sizeof(stage_status));
4917 stage_line_type = line->type;
4919 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4926 status_exists(struct status *status, enum line_type type)
4928 struct view *view = VIEW(REQ_VIEW_STATUS);
4929 unsigned long lineno;
4931 for (lineno = 0; lineno < view->lines; lineno++) {
4932 struct line *line = &view->line[lineno];
4933 struct status *pos = line->data;
4935 if (line->type != type)
4937 if (!pos && (!status || !status->status) && line[1].data) {
4938 select_view_line(view, lineno);
4941 if (pos && !strcmp(status->new.name, pos->new.name)) {
4942 select_view_line(view, lineno);
4952 status_update_prepare(struct io *io, enum line_type type)
4954 const char *staged_argv[] = {
4955 "git", "update-index", "-z", "--index-info", NULL
4957 const char *others_argv[] = {
4958 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4962 case LINE_STAT_STAGED:
4963 return run_io(io, staged_argv, opt_cdup, IO_WR);
4965 case LINE_STAT_UNSTAGED:
4966 return run_io(io, others_argv, opt_cdup, IO_WR);
4968 case LINE_STAT_UNTRACKED:
4969 return run_io(io, others_argv, NULL, IO_WR);
4972 die("line type %d not handled in switch", type);
4978 status_update_write(struct io *io, struct status *status, enum line_type type)
4980 char buf[SIZEOF_STR];
4984 case LINE_STAT_STAGED:
4985 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4988 status->old.name, 0))
4992 case LINE_STAT_UNSTAGED:
4993 case LINE_STAT_UNTRACKED:
4994 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4999 die("line type %d not handled in switch", type);
5002 return io_write(io, buf, bufsize);
5006 status_update_file(struct status *status, enum line_type type)
5011 if (!status_update_prepare(&io, type))
5014 result = status_update_write(&io, status, type);
5020 status_update_files(struct view *view, struct line *line)
5024 struct line *pos = view->line + view->lines;
5028 if (!status_update_prepare(&io, line->type))
5031 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5034 for (file = 0, done = 0; result && file < files; line++, file++) {
5035 int almost_done = file * 100 / files;
5037 if (almost_done > done) {
5039 string_format(view->ref, "updating file %u of %u (%d%% done)",
5041 update_view_title(view);
5043 result = status_update_write(&io, line->data, line->type);
5051 status_update(struct view *view)
5053 struct line *line = &view->line[view->lineno];
5055 assert(view->lines);
5058 /* This should work even for the "On branch" line. */
5059 if (line < view->line + view->lines && !line[1].data) {
5060 report("Nothing to update");
5064 if (!status_update_files(view, line + 1)) {
5065 report("Failed to update file status");
5069 } else if (!status_update_file(line->data, line->type)) {
5070 report("Failed to update file status");
5078 status_revert(struct status *status, enum line_type type, bool has_none)
5080 if (!status || type != LINE_STAT_UNSTAGED) {
5081 if (type == LINE_STAT_STAGED) {
5082 report("Cannot revert changes to staged files");
5083 } else if (type == LINE_STAT_UNTRACKED) {
5084 report("Cannot revert changes to untracked files");
5085 } else if (has_none) {
5086 report("Nothing to revert");
5088 report("Cannot revert changes to multiple files");
5093 char mode[10] = "100644";
5094 const char *reset_argv[] = {
5095 "git", "update-index", "--cacheinfo", mode,
5096 status->old.rev, status->old.name, NULL
5098 const char *checkout_argv[] = {
5099 "git", "checkout", "--", status->old.name, NULL
5102 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5104 string_format(mode, "%o", status->old.mode);
5105 return (status->status != 'U' || run_io_fg(reset_argv, opt_cdup)) &&
5106 run_io_fg(checkout_argv, opt_cdup);
5111 status_request(struct view *view, enum request request, struct line *line)
5113 struct status *status = line->data;
5116 case REQ_STATUS_UPDATE:
5117 if (!status_update(view))
5121 case REQ_STATUS_REVERT:
5122 if (!status_revert(status, line->type, status_has_none(view, line)))
5126 case REQ_STATUS_MERGE:
5127 if (!status || status->status != 'U') {
5128 report("Merging only possible for files with unmerged status ('U').");
5131 open_mergetool(status->new.name);
5137 if (status->status == 'D') {
5138 report("File has been deleted.");
5142 open_editor(status->status != '?', status->new.name);
5145 case REQ_VIEW_BLAME:
5147 string_copy(opt_file, status->new.name);
5153 /* After returning the status view has been split to
5154 * show the stage view. No further reloading is
5156 status_enter(view, line);
5160 /* Simply reload the view. */
5167 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5173 status_select(struct view *view, struct line *line)
5175 struct status *status = line->data;
5176 char file[SIZEOF_STR] = "all files";
5180 if (status && !string_format(file, "'%s'", status->new.name))
5183 if (!status && line[1].type == LINE_STAT_NONE)
5186 switch (line->type) {
5187 case LINE_STAT_STAGED:
5188 text = "Press %s to unstage %s for commit";
5191 case LINE_STAT_UNSTAGED:
5192 text = "Press %s to stage %s for commit";
5195 case LINE_STAT_UNTRACKED:
5196 text = "Press %s to stage %s for addition";
5199 case LINE_STAT_HEAD:
5200 case LINE_STAT_NONE:
5201 text = "Nothing to update";
5205 die("line type %d not handled in switch", line->type);
5208 if (status && status->status == 'U') {
5209 text = "Press %s to resolve conflict in %s";
5210 key = get_key(REQ_STATUS_MERGE);
5213 key = get_key(REQ_STATUS_UPDATE);
5216 string_format(view->ref, text, key, file);
5220 status_grep(struct view *view, struct line *line)
5222 struct status *status = line->data;
5223 enum { S_STATUS, S_NAME, S_END } state;
5230 for (state = S_STATUS; state < S_END; state++) {
5234 case S_NAME: text = status->new.name; break;
5236 buf[0] = status->status;
5244 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5251 static struct view_ops status_ops = {
5264 stage_diff_write(struct io *io, struct line *line, struct line *end)
5266 while (line < end) {
5267 if (!io_write(io, line->data, strlen(line->data)) ||
5268 !io_write(io, "\n", 1))
5271 if (line->type == LINE_DIFF_CHUNK ||
5272 line->type == LINE_DIFF_HEADER)
5279 static struct line *
5280 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5282 for (; view->line < line; line--)
5283 if (line->type == type)
5290 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5292 const char *apply_argv[SIZEOF_ARG] = {
5293 "git", "apply", "--whitespace=nowarn", NULL
5295 struct line *diff_hdr;
5299 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5304 apply_argv[argc++] = "--cached";
5305 if (revert || stage_line_type == LINE_STAT_STAGED)
5306 apply_argv[argc++] = "-R";
5307 apply_argv[argc++] = "-";
5308 apply_argv[argc++] = NULL;
5309 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5312 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5313 !stage_diff_write(&io, chunk, view->line + view->lines))
5317 run_io_bg(update_index_argv);
5319 return chunk ? TRUE : FALSE;
5323 stage_update(struct view *view, struct line *line)
5325 struct line *chunk = NULL;
5327 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5328 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5331 if (!stage_apply_chunk(view, chunk, FALSE)) {
5332 report("Failed to apply chunk");
5336 } else if (!stage_status.status) {
5337 view = VIEW(REQ_VIEW_STATUS);
5339 for (line = view->line; line < view->line + view->lines; line++)
5340 if (line->type == stage_line_type)
5343 if (!status_update_files(view, line + 1)) {
5344 report("Failed to update files");
5348 } else if (!status_update_file(&stage_status, stage_line_type)) {
5349 report("Failed to update file");
5357 stage_revert(struct view *view, struct line *line)
5359 struct line *chunk = NULL;
5361 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5362 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5365 if (!prompt_yesno("Are you sure you want to revert changes?"))
5368 if (!stage_apply_chunk(view, chunk, TRUE)) {
5369 report("Failed to revert chunk");
5375 return status_revert(stage_status.status ? &stage_status : NULL,
5376 stage_line_type, FALSE);
5382 stage_next(struct view *view, struct line *line)
5386 if (!stage_chunks) {
5387 static size_t alloc = 0;
5390 for (line = view->line; line < view->line + view->lines; line++) {
5391 if (line->type != LINE_DIFF_CHUNK)
5394 tmp = realloc_items(stage_chunk, &alloc,
5395 stage_chunks, sizeof(*tmp));
5397 report("Allocation failure");
5402 stage_chunk[stage_chunks++] = line - view->line;
5406 for (i = 0; i < stage_chunks; i++) {
5407 if (stage_chunk[i] > view->lineno) {
5408 do_scroll_view(view, stage_chunk[i] - view->lineno);
5409 report("Chunk %d of %d", i + 1, stage_chunks);
5414 report("No next chunk found");
5418 stage_request(struct view *view, enum request request, struct line *line)
5421 case REQ_STATUS_UPDATE:
5422 if (!stage_update(view, line))
5426 case REQ_STATUS_REVERT:
5427 if (!stage_revert(view, line))
5431 case REQ_STAGE_NEXT:
5432 if (stage_line_type == LINE_STAT_UNTRACKED) {
5433 report("File is untracked; press %s to add",
5434 get_key(REQ_STATUS_UPDATE));
5437 stage_next(view, line);
5441 if (!stage_status.new.name[0])
5443 if (stage_status.status == 'D') {
5444 report("File has been deleted.");
5448 open_editor(stage_status.status != '?', stage_status.new.name);
5452 /* Reload everything ... */
5455 case REQ_VIEW_BLAME:
5456 if (stage_status.new.name[0]) {
5457 string_copy(opt_file, stage_status.new.name);
5463 return pager_request(view, request, line);
5469 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5470 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
5472 /* Check whether the staged entry still exists, and close the
5473 * stage view if it doesn't. */
5474 if (!status_exists(&stage_status, stage_line_type)) {
5475 status_restore(VIEW(REQ_VIEW_STATUS));
5476 return REQ_VIEW_CLOSE;
5479 if (stage_line_type == LINE_STAT_UNTRACKED) {
5480 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5481 report("Cannot display a directory");
5485 if (!prepare_update_file(view, stage_status.new.name)) {
5486 report("Failed to open file: %s", strerror(errno));
5490 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5495 static struct view_ops stage_ops = {
5512 char id[SIZEOF_REV]; /* SHA1 ID. */
5513 char title[128]; /* First line of the commit message. */
5514 char author[75]; /* Author of the commit. */
5515 struct tm time; /* Date from the author ident. */
5516 struct ref **refs; /* Repository references. */
5517 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5518 size_t graph_size; /* The width of the graph array. */
5519 bool has_parents; /* Rewritten --parents seen. */
5522 /* Size of rev graph with no "padding" columns */
5523 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5526 struct rev_graph *prev, *next, *parents;
5527 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5529 struct commit *commit;
5531 unsigned int boundary:1;
5534 /* Parents of the commit being visualized. */
5535 static struct rev_graph graph_parents[4];
5537 /* The current stack of revisions on the graph. */
5538 static struct rev_graph graph_stacks[4] = {
5539 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5540 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5541 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5542 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5546 graph_parent_is_merge(struct rev_graph *graph)
5548 return graph->parents->size > 1;
5552 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5554 struct commit *commit = graph->commit;
5556 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5557 commit->graph[commit->graph_size++] = symbol;
5561 clear_rev_graph(struct rev_graph *graph)
5563 graph->boundary = 0;
5564 graph->size = graph->pos = 0;
5565 graph->commit = NULL;
5566 memset(graph->parents, 0, sizeof(*graph->parents));
5570 done_rev_graph(struct rev_graph *graph)
5572 if (graph_parent_is_merge(graph) &&
5573 graph->pos < graph->size - 1 &&
5574 graph->next->size == graph->size + graph->parents->size - 1) {
5575 size_t i = graph->pos + graph->parents->size - 1;
5577 graph->commit->graph_size = i * 2;
5578 while (i < graph->next->size - 1) {
5579 append_to_rev_graph(graph, ' ');
5580 append_to_rev_graph(graph, '\\');
5585 clear_rev_graph(graph);
5589 push_rev_graph(struct rev_graph *graph, const char *parent)
5593 /* "Collapse" duplicate parents lines.
5595 * FIXME: This needs to also update update the drawn graph but
5596 * for now it just serves as a method for pruning graph lines. */
5597 for (i = 0; i < graph->size; i++)
5598 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5601 if (graph->size < SIZEOF_REVITEMS) {
5602 string_copy_rev(graph->rev[graph->size++], parent);
5607 get_rev_graph_symbol(struct rev_graph *graph)
5611 if (graph->boundary)
5612 symbol = REVGRAPH_BOUND;
5613 else if (graph->parents->size == 0)
5614 symbol = REVGRAPH_INIT;
5615 else if (graph_parent_is_merge(graph))
5616 symbol = REVGRAPH_MERGE;
5617 else if (graph->pos >= graph->size)
5618 symbol = REVGRAPH_BRANCH;
5620 symbol = REVGRAPH_COMMIT;
5626 draw_rev_graph(struct rev_graph *graph)
5629 chtype separator, line;
5631 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5632 static struct rev_filler fillers[] = {
5638 chtype symbol = get_rev_graph_symbol(graph);
5639 struct rev_filler *filler;
5642 if (opt_line_graphics)
5643 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5645 filler = &fillers[DEFAULT];
5647 for (i = 0; i < graph->pos; i++) {
5648 append_to_rev_graph(graph, filler->line);
5649 if (graph_parent_is_merge(graph->prev) &&
5650 graph->prev->pos == i)
5651 filler = &fillers[RSHARP];
5653 append_to_rev_graph(graph, filler->separator);
5656 /* Place the symbol for this revision. */
5657 append_to_rev_graph(graph, symbol);
5659 if (graph->prev->size > graph->size)
5660 filler = &fillers[RDIAG];
5662 filler = &fillers[DEFAULT];
5666 for (; i < graph->size; i++) {
5667 append_to_rev_graph(graph, filler->separator);
5668 append_to_rev_graph(graph, filler->line);
5669 if (graph_parent_is_merge(graph->prev) &&
5670 i < graph->prev->pos + graph->parents->size)
5671 filler = &fillers[RSHARP];
5672 if (graph->prev->size > graph->size)
5673 filler = &fillers[LDIAG];
5676 if (graph->prev->size > graph->size) {
5677 append_to_rev_graph(graph, filler->separator);
5678 if (filler->line != ' ')
5679 append_to_rev_graph(graph, filler->line);
5683 /* Prepare the next rev graph */
5685 prepare_rev_graph(struct rev_graph *graph)
5689 /* First, traverse all lines of revisions up to the active one. */
5690 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5691 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5694 push_rev_graph(graph->next, graph->rev[graph->pos]);
5697 /* Interleave the new revision parent(s). */
5698 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5699 push_rev_graph(graph->next, graph->parents->rev[i]);
5701 /* Lastly, put any remaining revisions. */
5702 for (i = graph->pos + 1; i < graph->size; i++)
5703 push_rev_graph(graph->next, graph->rev[i]);
5707 update_rev_graph(struct view *view, struct rev_graph *graph)
5709 /* If this is the finalizing update ... */
5711 prepare_rev_graph(graph);
5713 /* Graph visualization needs a one rev look-ahead,
5714 * so the first update doesn't visualize anything. */
5715 if (!graph->prev->commit)
5718 if (view->lines > 2)
5719 view->line[view->lines - 3].dirty = 1;
5720 if (view->lines > 1)
5721 view->line[view->lines - 2].dirty = 1;
5722 draw_rev_graph(graph->prev);
5723 done_rev_graph(graph->prev->prev);
5731 static const char *main_argv[SIZEOF_ARG] = {
5732 "git", "log", "--no-color", "--pretty=raw", "--parents",
5733 "--topo-order", "%(head)", NULL
5737 main_draw(struct view *view, struct line *line, unsigned int lineno)
5739 struct commit *commit = line->data;
5741 if (!*commit->author)
5744 if (opt_date && draw_date(view, &commit->time))
5747 if (opt_author && draw_author(view, commit->author))
5750 if (opt_rev_graph && commit->graph_size &&
5751 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5754 if (opt_show_refs && commit->refs) {
5758 enum line_type type;
5760 if (commit->refs[i]->head)
5761 type = LINE_MAIN_HEAD;
5762 else if (commit->refs[i]->ltag)
5763 type = LINE_MAIN_LOCAL_TAG;
5764 else if (commit->refs[i]->tag)
5765 type = LINE_MAIN_TAG;
5766 else if (commit->refs[i]->tracked)
5767 type = LINE_MAIN_TRACKED;
5768 else if (commit->refs[i]->remote)
5769 type = LINE_MAIN_REMOTE;
5771 type = LINE_MAIN_REF;
5773 if (draw_text(view, type, "[", TRUE) ||
5774 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5775 draw_text(view, type, "]", TRUE))
5778 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5780 } while (commit->refs[i++]->next);
5783 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5787 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5789 main_read(struct view *view, char *line)
5791 static struct rev_graph *graph = graph_stacks;
5792 enum line_type type;
5793 struct commit *commit;
5798 if (!view->lines && !view->parent)
5799 die("No revisions match the given arguments.");
5800 if (view->lines > 0) {
5801 commit = view->line[view->lines - 1].data;
5802 view->line[view->lines - 1].dirty = 1;
5803 if (!*commit->author) {
5806 graph->commit = NULL;
5809 update_rev_graph(view, graph);
5811 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5812 clear_rev_graph(&graph_stacks[i]);
5816 type = get_line_type(line);
5817 if (type == LINE_COMMIT) {
5818 commit = calloc(1, sizeof(struct commit));
5822 line += STRING_SIZE("commit ");
5824 graph->boundary = 1;
5828 string_copy_rev(commit->id, line);
5829 commit->refs = get_refs(commit->id);
5830 graph->commit = commit;
5831 add_line_data(view, commit, LINE_MAIN_COMMIT);
5833 while ((line = strchr(line, ' '))) {
5835 push_rev_graph(graph->parents, line);
5836 commit->has_parents = TRUE;
5843 commit = view->line[view->lines - 1].data;
5847 if (commit->has_parents)
5849 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5853 parse_author_line(line + STRING_SIZE("author "),
5854 commit->author, sizeof(commit->author),
5856 update_rev_graph(view, graph);
5857 graph = graph->next;
5861 /* Fill in the commit title if it has not already been set. */
5862 if (commit->title[0])
5865 /* Require titles to start with a non-space character at the
5866 * offset used by git log. */
5867 if (strncmp(line, " ", 4))
5870 /* Well, if the title starts with a whitespace character,
5871 * try to be forgiving. Otherwise we end up with no title. */
5872 while (isspace(*line))
5876 /* FIXME: More graceful handling of titles; append "..." to
5877 * shortened titles, etc. */
5879 string_expand(commit->title, sizeof(commit->title), line, 1);
5880 view->line[view->lines - 1].dirty = 1;
5887 main_request(struct view *view, enum request request, struct line *line)
5889 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5893 open_view(view, REQ_VIEW_DIFF, flags);
5897 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5907 grep_refs(struct ref **refs, regex_t *regex)
5915 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5917 } while (refs[i++]->next);
5923 main_grep(struct view *view, struct line *line)
5925 struct commit *commit = line->data;
5926 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5927 char buf[DATE_COLS + 1];
5930 for (state = S_TITLE; state < S_END; state++) {
5934 case S_TITLE: text = commit->title; break;
5938 text = commit->author;
5943 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5950 if (grep_refs(commit->refs, view->regex) == TRUE)
5957 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5965 main_select(struct view *view, struct line *line)
5967 struct commit *commit = line->data;
5969 string_copy_rev(view->ref, commit->id);
5970 string_copy_rev(ref_commit, view->ref);
5973 static struct view_ops main_ops = {
5986 * Unicode / UTF-8 handling
5988 * NOTE: Much of the following code for dealing with unicode is derived from
5989 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5990 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5993 /* I've (over)annotated a lot of code snippets because I am not entirely
5994 * confident that the approach taken by this small UTF-8 interface is correct.
5998 unicode_width(unsigned long c)
6001 (c <= 0x115f /* Hangul Jamo */
6004 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
6006 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
6007 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
6008 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
6009 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
6010 || (c >= 0xffe0 && c <= 0xffe6)
6011 || (c >= 0x20000 && c <= 0x2fffd)
6012 || (c >= 0x30000 && c <= 0x3fffd)))
6016 return opt_tab_size;
6021 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
6022 * Illegal bytes are set one. */
6023 static const unsigned char utf8_bytes[256] = {
6024 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,
6025 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,
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 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,
6031 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,
6034 /* Decode UTF-8 multi-byte representation into a unicode character. */
6035 static inline unsigned long
6036 utf8_to_unicode(const char *string, size_t length)
6038 unsigned long unicode;
6042 unicode = string[0];
6045 unicode = (string[0] & 0x1f) << 6;
6046 unicode += (string[1] & 0x3f);
6049 unicode = (string[0] & 0x0f) << 12;
6050 unicode += ((string[1] & 0x3f) << 6);
6051 unicode += (string[2] & 0x3f);
6054 unicode = (string[0] & 0x0f) << 18;
6055 unicode += ((string[1] & 0x3f) << 12);
6056 unicode += ((string[2] & 0x3f) << 6);
6057 unicode += (string[3] & 0x3f);
6060 unicode = (string[0] & 0x0f) << 24;
6061 unicode += ((string[1] & 0x3f) << 18);
6062 unicode += ((string[2] & 0x3f) << 12);
6063 unicode += ((string[3] & 0x3f) << 6);
6064 unicode += (string[4] & 0x3f);
6067 unicode = (string[0] & 0x01) << 30;
6068 unicode += ((string[1] & 0x3f) << 24);
6069 unicode += ((string[2] & 0x3f) << 18);
6070 unicode += ((string[3] & 0x3f) << 12);
6071 unicode += ((string[4] & 0x3f) << 6);
6072 unicode += (string[5] & 0x3f);
6075 die("Invalid unicode length");
6078 /* Invalid characters could return the special 0xfffd value but NUL
6079 * should be just as good. */
6080 return unicode > 0xffff ? 0 : unicode;
6083 /* Calculates how much of string can be shown within the given maximum width
6084 * and sets trimmed parameter to non-zero value if all of string could not be
6085 * shown. If the reserve flag is TRUE, it will reserve at least one
6086 * trailing character, which can be useful when drawing a delimiter.
6088 * Returns the number of bytes to output from string to satisfy max_width. */
6090 utf8_length(const char **start, size_t skip, int *width, size_t max_width, int *trimmed, bool reserve)
6092 const char *string = *start;
6093 const char *end = strchr(string, '\0');
6094 unsigned char last_bytes = 0;
6095 size_t last_ucwidth = 0;
6100 while (string < end) {
6101 int c = *(unsigned char *) string;
6102 unsigned char bytes = utf8_bytes[c];
6104 unsigned long unicode;
6106 if (string + bytes > end)
6109 /* Change representation to figure out whether
6110 * it is a single- or double-width character. */
6112 unicode = utf8_to_unicode(string, bytes);
6113 /* FIXME: Graceful handling of invalid unicode character. */
6117 ucwidth = unicode_width(unicode);
6119 skip -= ucwidth <= skip ? ucwidth : skip;
6123 if (*width > max_width) {
6126 if (reserve && *width == max_width) {
6127 string -= last_bytes;
6128 *width -= last_ucwidth;
6134 last_bytes = ucwidth ? bytes : 0;
6135 last_ucwidth = ucwidth;
6138 return string - *start;
6146 /* Whether or not the curses interface has been initialized. */
6147 static bool cursed = FALSE;
6149 /* Terminal hacks and workarounds. */
6150 static bool use_scroll_redrawwin;
6151 static bool use_scroll_status_wclear;
6153 /* The status window is used for polling keystrokes. */
6154 static WINDOW *status_win;
6156 /* Reading from the prompt? */
6157 static bool input_mode = FALSE;
6159 static bool status_empty = FALSE;
6161 /* Update status and title window. */
6163 report(const char *msg, ...)
6165 struct view *view = display[current_view];
6171 char buf[SIZEOF_STR];
6174 va_start(args, msg);
6175 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6176 buf[sizeof(buf) - 1] = 0;
6177 buf[sizeof(buf) - 2] = '.';
6178 buf[sizeof(buf) - 3] = '.';
6179 buf[sizeof(buf) - 4] = '.';
6185 if (!status_empty || *msg) {
6188 va_start(args, msg);
6190 wmove(status_win, 0, 0);
6191 if (view->has_scrolled && use_scroll_status_wclear)
6194 vwprintw(status_win, msg, args);
6195 status_empty = FALSE;
6197 status_empty = TRUE;
6199 wclrtoeol(status_win);
6200 wnoutrefresh(status_win);
6205 update_view_title(view);
6208 /* Controls when nodelay should be in effect when polling user input. */
6210 set_nonblocking_input(bool loading)
6212 static unsigned int loading_views;
6214 if ((loading == FALSE && loading_views-- == 1) ||
6215 (loading == TRUE && loading_views++ == 0))
6216 nodelay(status_win, loading);
6225 /* Initialize the curses library */
6226 if (isatty(STDIN_FILENO)) {
6227 cursed = !!initscr();
6230 /* Leave stdin and stdout alone when acting as a pager. */
6231 opt_tty = fopen("/dev/tty", "r+");
6233 die("Failed to open /dev/tty");
6234 cursed = !!newterm(NULL, opt_tty, opt_tty);
6238 die("Failed to initialize curses");
6240 nonl(); /* Tell curses not to do NL->CR/NL on output */
6241 cbreak(); /* Take input chars one at a time, no wait for \n */
6242 noecho(); /* Don't echo input */
6243 leaveok(stdscr, FALSE);
6248 getmaxyx(stdscr, y, x);
6249 status_win = newwin(1, 0, y - 1, 0);
6251 die("Failed to create status window");
6253 /* Enable keyboard mapping */
6254 keypad(status_win, TRUE);
6255 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6257 TABSIZE = opt_tab_size;
6258 if (opt_line_graphics) {
6259 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6262 term = getenv("XTERM_VERSION") ? NULL : getenv("COLORTERM");
6263 if (term && !strcmp(term, "gnome-terminal")) {
6264 /* In the gnome-terminal-emulator, the message from
6265 * scrolling up one line when impossible followed by
6266 * scrolling down one line causes corruption of the
6267 * status line. This is fixed by calling wclear. */
6268 use_scroll_status_wclear = TRUE;
6269 use_scroll_redrawwin = FALSE;
6271 } else if (term && !strcmp(term, "xrvt-xpm")) {
6272 /* No problems with full optimizations in xrvt-(unicode)
6274 use_scroll_status_wclear = use_scroll_redrawwin = FALSE;
6277 /* When scrolling in (u)xterm the last line in the
6278 * scrolling direction will update slowly. */
6279 use_scroll_redrawwin = TRUE;
6280 use_scroll_status_wclear = FALSE;
6285 get_input(int prompt_position)
6288 int i, key, cursor_y, cursor_x;
6290 if (prompt_position)
6294 foreach_view (view, i) {
6296 if (view_is_displayed(view) && view->has_scrolled &&
6297 use_scroll_redrawwin)
6298 redrawwin(view->win);
6299 view->has_scrolled = FALSE;
6302 /* Update the cursor position. */
6303 if (prompt_position) {
6304 getbegyx(status_win, cursor_y, cursor_x);
6305 cursor_x = prompt_position;
6307 view = display[current_view];
6308 getbegyx(view->win, cursor_y, cursor_x);
6309 cursor_x = view->width - 1;
6310 cursor_y += view->lineno - view->offset;
6312 setsyx(cursor_y, cursor_x);
6314 /* Refresh, accept single keystroke of input */
6316 key = wgetch(status_win);
6318 /* wgetch() with nodelay() enabled returns ERR when
6319 * there's no input. */
6322 } else if (key == KEY_RESIZE) {
6325 getmaxyx(stdscr, height, width);
6327 wresize(status_win, 1, width);
6328 mvwin(status_win, height - 1, 0);
6329 wnoutrefresh(status_win);
6331 redraw_display(TRUE);
6341 prompt_input(const char *prompt, input_handler handler, void *data)
6343 enum input_status status = INPUT_OK;
6344 static char buf[SIZEOF_STR];
6349 while (status == INPUT_OK || status == INPUT_SKIP) {
6352 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6353 wclrtoeol(status_win);
6355 key = get_input(pos + 1);
6360 status = pos ? INPUT_STOP : INPUT_CANCEL;
6367 status = INPUT_CANCEL;
6371 status = INPUT_CANCEL;
6375 if (pos >= sizeof(buf)) {
6376 report("Input string too long");
6380 status = handler(data, buf, key);
6381 if (status == INPUT_OK)
6382 buf[pos++] = (char) key;
6386 /* Clear the status window */
6387 status_empty = FALSE;
6390 if (status == INPUT_CANCEL)
6398 static enum input_status
6399 prompt_yesno_handler(void *data, char *buf, int c)
6401 if (c == 'y' || c == 'Y')
6403 if (c == 'n' || c == 'N')
6404 return INPUT_CANCEL;
6409 prompt_yesno(const char *prompt)
6411 char prompt2[SIZEOF_STR];
6413 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6416 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6419 static enum input_status
6420 read_prompt_handler(void *data, char *buf, int c)
6422 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6426 read_prompt(const char *prompt)
6428 return prompt_input(prompt, read_prompt_handler, NULL);
6432 * Repository properties
6435 static struct ref *refs = NULL;
6436 static size_t refs_alloc = 0;
6437 static size_t refs_size = 0;
6439 /* Id <-> ref store */
6440 static struct ref ***id_refs = NULL;
6441 static size_t id_refs_alloc = 0;
6442 static size_t id_refs_size = 0;
6445 compare_refs(const void *ref1_, const void *ref2_)
6447 const struct ref *ref1 = *(const struct ref **)ref1_;
6448 const struct ref *ref2 = *(const struct ref **)ref2_;
6450 if (ref1->tag != ref2->tag)
6451 return ref2->tag - ref1->tag;
6452 if (ref1->ltag != ref2->ltag)
6453 return ref2->ltag - ref2->ltag;
6454 if (ref1->head != ref2->head)
6455 return ref2->head - ref1->head;
6456 if (ref1->tracked != ref2->tracked)
6457 return ref2->tracked - ref1->tracked;
6458 if (ref1->remote != ref2->remote)
6459 return ref2->remote - ref1->remote;
6460 return strcmp(ref1->name, ref2->name);
6463 static struct ref **
6464 get_refs(const char *id)
6466 struct ref ***tmp_id_refs;
6467 struct ref **ref_list = NULL;
6468 size_t ref_list_alloc = 0;
6469 size_t ref_list_size = 0;
6472 for (i = 0; i < id_refs_size; i++)
6473 if (!strcmp(id, id_refs[i][0]->id))
6476 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6481 id_refs = tmp_id_refs;
6483 for (i = 0; i < refs_size; i++) {
6486 if (strcmp(id, refs[i].id))
6489 tmp = realloc_items(ref_list, &ref_list_alloc,
6490 ref_list_size + 1, sizeof(*ref_list));
6498 ref_list[ref_list_size] = &refs[i];
6499 /* XXX: The properties of the commit chains ensures that we can
6500 * safely modify the shared ref. The repo references will
6501 * always be similar for the same id. */
6502 ref_list[ref_list_size]->next = 1;
6508 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6509 ref_list[ref_list_size - 1]->next = 0;
6510 id_refs[id_refs_size++] = ref_list;
6517 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6522 bool remote = FALSE;
6523 bool tracked = FALSE;
6524 bool check_replace = FALSE;
6527 if (!prefixcmp(name, "refs/tags/")) {
6528 if (!suffixcmp(name, namelen, "^{}")) {
6531 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6532 check_replace = TRUE;
6538 namelen -= STRING_SIZE("refs/tags/");
6539 name += STRING_SIZE("refs/tags/");
6541 } else if (!prefixcmp(name, "refs/remotes/")) {
6543 namelen -= STRING_SIZE("refs/remotes/");
6544 name += STRING_SIZE("refs/remotes/");
6545 tracked = !strcmp(opt_remote, name);
6547 } else if (!prefixcmp(name, "refs/heads/")) {
6548 namelen -= STRING_SIZE("refs/heads/");
6549 name += STRING_SIZE("refs/heads/");
6550 head = !strncmp(opt_head, name, namelen);
6552 } else if (!strcmp(name, "HEAD")) {
6553 string_ncopy(opt_head_rev, id, idlen);
6557 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6558 /* it's an annotated tag, replace the previous sha1 with the
6559 * resolved commit id; relies on the fact git-ls-remote lists
6560 * the commit id of an annotated tag right before the commit id
6562 refs[refs_size - 1].ltag = ltag;
6563 string_copy_rev(refs[refs_size - 1].id, id);
6567 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6571 ref = &refs[refs_size++];
6572 ref->name = malloc(namelen + 1);
6576 strncpy(ref->name, name, namelen);
6577 ref->name[namelen] = 0;
6581 ref->remote = remote;
6582 ref->tracked = tracked;
6583 string_copy_rev(ref->id, id);
6591 static const char *ls_remote_argv[SIZEOF_ARG] = {
6592 "git", "ls-remote", ".", NULL
6594 static bool init = FALSE;
6597 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6604 while (refs_size > 0)
6605 free(refs[--refs_size].name);
6606 while (id_refs_size > 0)
6607 free(id_refs[--id_refs_size]);
6609 return run_io_load(ls_remote_argv, "\t", read_ref);
6613 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6615 if (!strcmp(name, "i18n.commitencoding"))
6616 string_ncopy(opt_encoding, value, valuelen);
6618 if (!strcmp(name, "core.editor"))
6619 string_ncopy(opt_editor, value, valuelen);
6621 /* branch.<head>.remote */
6623 !strncmp(name, "branch.", 7) &&
6624 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6625 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6626 string_ncopy(opt_remote, value, valuelen);
6628 if (*opt_head && *opt_remote &&
6629 !strncmp(name, "branch.", 7) &&
6630 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6631 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6632 size_t from = strlen(opt_remote);
6634 if (!prefixcmp(value, "refs/heads/")) {
6635 value += STRING_SIZE("refs/heads/");
6636 valuelen -= STRING_SIZE("refs/heads/");
6639 if (!string_format_from(opt_remote, &from, "/%s", value))
6647 load_git_config(void)
6649 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6651 return run_io_load(config_list_argv, "=", read_repo_config_option);
6655 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6657 if (!opt_git_dir[0]) {
6658 string_ncopy(opt_git_dir, name, namelen);
6660 } else if (opt_is_inside_work_tree == -1) {
6661 /* This can be 3 different values depending on the
6662 * version of git being used. If git-rev-parse does not
6663 * understand --is-inside-work-tree it will simply echo
6664 * the option else either "true" or "false" is printed.
6665 * Default to true for the unknown case. */
6666 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6668 } else if (*name == '.') {
6669 string_ncopy(opt_cdup, name, namelen);
6672 string_ncopy(opt_prefix, name, namelen);
6679 load_repo_info(void)
6681 const char *head_argv[] = {
6682 "git", "symbolic-ref", "HEAD", NULL
6684 const char *rev_parse_argv[] = {
6685 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6686 "--show-cdup", "--show-prefix", NULL
6689 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6690 chomp_string(opt_head);
6691 if (!prefixcmp(opt_head, "refs/heads/")) {
6692 char *offset = opt_head + STRING_SIZE("refs/heads/");
6694 memmove(opt_head, offset, strlen(offset) + 1);
6698 return run_io_load(rev_parse_argv, "=", read_repo_info);
6706 static const char usage[] =
6707 "tig " TIG_VERSION " (" __DATE__ ")\n"
6709 "Usage: tig [options] [revs] [--] [paths]\n"
6710 " or: tig show [options] [revs] [--] [paths]\n"
6711 " or: tig blame [rev] path\n"
6713 " or: tig < [git command output]\n"
6716 " -v, --version Show version and exit\n"
6717 " -h, --help Show help message and exit";
6719 static void __NORETURN
6722 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6728 static void __NORETURN
6729 die(const char *err, ...)
6735 va_start(args, err);
6736 fputs("tig: ", stderr);
6737 vfprintf(stderr, err, args);
6738 fputs("\n", stderr);
6745 warn(const char *msg, ...)
6749 va_start(args, msg);
6750 fputs("tig warning: ", stderr);
6751 vfprintf(stderr, msg, args);
6752 fputs("\n", stderr);
6757 parse_options(int argc, const char *argv[])
6759 enum request request = REQ_VIEW_MAIN;
6760 const char *subcommand;
6761 bool seen_dashdash = FALSE;
6762 /* XXX: This is vulnerable to the user overriding options
6763 * required for the main view parser. */
6764 const char *custom_argv[SIZEOF_ARG] = {
6765 "git", "log", "--no-color", "--pretty=raw", "--parents",
6766 "--topo-order", NULL
6770 if (!isatty(STDIN_FILENO)) {
6771 io_open(&VIEW(REQ_VIEW_PAGER)->io, "");
6772 return REQ_VIEW_PAGER;
6778 subcommand = argv[1];
6779 if (!strcmp(subcommand, "status")) {
6781 warn("ignoring arguments after `%s'", subcommand);
6782 return REQ_VIEW_STATUS;
6784 } else if (!strcmp(subcommand, "blame")) {
6785 if (argc <= 2 || argc > 4)
6786 die("invalid number of options to blame\n\n%s", usage);
6790 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
6794 string_ncopy(opt_file, argv[i], strlen(argv[i]));
6795 return REQ_VIEW_BLAME;
6797 } else if (!strcmp(subcommand, "show")) {
6798 request = REQ_VIEW_DIFF;
6805 custom_argv[1] = subcommand;
6809 for (i = 1 + !!subcommand; i < argc; i++) {
6810 const char *opt = argv[i];
6812 if (seen_dashdash || !strcmp(opt, "--")) {
6813 seen_dashdash = TRUE;
6815 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
6816 printf("tig version %s\n", TIG_VERSION);
6819 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
6820 printf("%s\n", usage);
6824 custom_argv[j++] = opt;
6825 if (j >= ARRAY_SIZE(custom_argv))
6826 die("command too long");
6829 if (!prepare_update(VIEW(request), custom_argv, NULL, FORMAT_NONE))
6830 die("Failed to format arguments");
6836 main(int argc, const char *argv[])
6838 enum request request = parse_options(argc, argv);
6842 signal(SIGINT, quit);
6844 if (setlocale(LC_ALL, "")) {
6845 char *codeset = nl_langinfo(CODESET);
6847 string_ncopy(opt_codeset, codeset, strlen(codeset));
6850 if (load_repo_info() == ERR)
6851 die("Failed to load repo info.");
6853 if (load_options() == ERR)
6854 die("Failed to load user config.");
6856 if (load_git_config() == ERR)
6857 die("Failed to load repo config.");
6859 /* Require a git repository unless when running in pager mode. */
6860 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6861 die("Not a git repository");
6863 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6866 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6867 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6868 if (opt_iconv == ICONV_NONE)
6869 die("Failed to initialize character set conversion");
6872 if (load_refs() == ERR)
6873 die("Failed to load refs.");
6875 foreach_view (view, i)
6876 argv_from_env(view->ops->argv, view->cmd_env);
6880 if (request != REQ_NONE)
6881 open_view(NULL, request, OPEN_PREPARED);
6882 request = request == REQ_NONE ? REQ_VIEW_MAIN : REQ_NONE;
6884 while (view_driver(display[current_view], request)) {
6885 int key = get_input(0);
6887 view = display[current_view];
6888 request = get_keybinding(view->keymap, key);
6890 /* Some low-level request handling. This keeps access to
6891 * status_win restricted. */
6895 char *cmd = read_prompt(":");
6898 struct view *next = VIEW(REQ_VIEW_PAGER);
6899 const char *argv[SIZEOF_ARG] = { "git" };
6902 /* When running random commands, initially show the
6903 * command in the title. However, it maybe later be
6904 * overwritten if a commit line is selected. */
6905 string_ncopy(next->ref, cmd, strlen(cmd));
6907 if (!argv_from_string(argv, &argc, cmd)) {
6908 report("Too many arguments");
6909 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6910 report("Failed to format command");
6912 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6920 case REQ_SEARCH_BACK:
6922 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6923 char *search = read_prompt(prompt);
6926 string_ncopy(opt_search, search, strlen(search));
6927 else if (*opt_search)
6928 request = request == REQ_SEARCH ?