1 /* Copyright (c) 2006-2009 Jonas Fonseca <fonseca@diku.dk>
3 * This program is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU General Public License as
5 * published by the Free Software Foundation; either version 2 of
6 * the License, or (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
19 #define TIG_VERSION "unknown-version"
34 #include <sys/types.h>
37 #include <sys/select.h>
48 /* ncurses(3): Must be defined to have extended wide-character functions. */
49 #define _XOPEN_SOURCE_EXTENDED
51 #ifdef HAVE_NCURSESW_NCURSES_H
52 #include <ncursesw/ncurses.h>
54 #ifdef HAVE_NCURSES_NCURSES_H
55 #include <ncurses/ncurses.h>
62 #define __NORETURN __attribute__((__noreturn__))
67 static void __NORETURN die(const char *err, ...);
68 static void warn(const char *msg, ...);
69 static void report(const char *msg, ...);
70 static void set_nonblocking_input(bool loading);
71 static int load_refs(void);
72 static size_t utf8_length(const char **string, size_t col, int *width, size_t max_width, int *trimmed, bool reserve);
74 #define ABS(x) ((x) >= 0 ? (x) : -(x))
75 #define MIN(x, y) ((x) < (y) ? (x) : (y))
77 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
78 #define STRING_SIZE(x) (sizeof(x) - 1)
80 #define SIZEOF_STR 1024 /* Default string size. */
81 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
82 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL. */
83 #define SIZEOF_ARG 32 /* Default argument array size. */
87 #define REVGRAPH_INIT 'I'
88 #define REVGRAPH_MERGE 'M'
89 #define REVGRAPH_BRANCH '+'
90 #define REVGRAPH_COMMIT '*'
91 #define REVGRAPH_BOUND '^'
93 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
95 /* This color name can be used to refer to the default term colors. */
96 #define COLOR_DEFAULT (-1)
98 #define ICONV_NONE ((iconv_t) -1)
100 #define ICONV_CONST /* nothing */
103 /* The format and size of the date column in the main view. */
104 #define DATE_FORMAT "%Y-%m-%d %H:%M"
105 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
107 #define AUTHOR_COLS 20
110 /* The default interval between line numbers. */
111 #define NUMBER_INTERVAL 5
115 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
117 #define NULL_ID "0000000000000000000000000000000000000000"
119 #define S_ISGITLINK(mode) (((mode) & S_IFMT) == 0160000)
122 #define GIT_CONFIG "config"
125 /* Some ASCII-shorthands fitted into the ncurses namespace. */
127 #define KEY_RETURN '\r'
132 char *name; /* Ref name; tag or head names are shortened. */
133 char id[SIZEOF_REV]; /* Commit SHA1 ID */
134 unsigned int head:1; /* Is it the current HEAD? */
135 unsigned int tag:1; /* Is it a tag? */
136 unsigned int ltag:1; /* If so, is the tag local? */
137 unsigned int remote:1; /* Is it a remote ref? */
138 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
139 unsigned int next:1; /* For ref lists: are there more refs? */
142 static struct ref **get_refs(const char *id);
145 FORMAT_ALL, /* Perform replacement in all arguments. */
146 FORMAT_DASH, /* Perform replacement up until "--". */
147 FORMAT_NONE /* No replacement should be performed. */
150 static bool format_argv(const char *dst[], const char *src[], enum format_flags flags);
159 typedef enum input_status (*input_handler)(void *data, char *buf, int c);
161 static char *prompt_input(const char *prompt, input_handler handler, void *data);
162 static bool prompt_yesno(const char *prompt);
165 * Allocation helpers ... Entering macro hell to never be seen again.
168 #define DEFINE_ALLOCATOR(name, type, chunk_size) \
170 name(type **mem, size_t size, size_t increase) \
172 size_t num_chunks = (size + chunk_size - 1) / chunk_size; \
173 size_t num_chunks_new = (size + increase + chunk_size - 1) / chunk_size;\
176 if (mem == NULL || num_chunks != num_chunks_new) { \
177 tmp = realloc(tmp, num_chunks_new * chunk_size * sizeof(type)); \
190 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
192 if (srclen > dstlen - 1)
195 strncpy(dst, src, srclen);
199 /* Shorthands for safely copying into a fixed buffer. */
201 #define string_copy(dst, src) \
202 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
204 #define string_ncopy(dst, src, srclen) \
205 string_ncopy_do(dst, sizeof(dst), src, srclen)
207 #define string_copy_rev(dst, src) \
208 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
210 #define string_add(dst, from, src) \
211 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
214 string_expand(char *dst, size_t dstlen, const char *src, int tabsize)
218 for (size = pos = 0; size < dstlen - 1 && src[pos]; pos++) {
219 if (src[pos] == '\t') {
220 size_t expanded = tabsize - (size % tabsize);
222 if (expanded + size >= dstlen - 1)
223 expanded = dstlen - size - 1;
224 memcpy(dst + size, " ", expanded);
227 dst[size++] = src[pos];
235 chomp_string(char *name)
239 while (isspace(*name))
242 namelen = strlen(name) - 1;
243 while (namelen > 0 && isspace(name[namelen]))
250 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
253 size_t pos = bufpos ? *bufpos : 0;
256 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
262 return pos >= bufsize ? FALSE : TRUE;
265 #define string_format(buf, fmt, args...) \
266 string_nformat(buf, sizeof(buf), NULL, fmt, args)
268 #define string_format_from(buf, from, fmt, args...) \
269 string_nformat(buf, sizeof(buf), from, fmt, args)
272 string_enum_compare(const char *str1, const char *str2, int len)
276 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
278 /* Diff-Header == DIFF_HEADER */
279 for (i = 0; i < len; i++) {
280 if (toupper(str1[i]) == toupper(str2[i]))
283 if (string_enum_sep(str1[i]) &&
284 string_enum_sep(str2[i]))
287 return str1[i] - str2[i];
299 #define ENUM_MAP(name, value) { name, STRING_SIZE(name), value }
302 map_enum_do(const struct enum_map *map, size_t map_size, int *value, const char *name)
304 size_t namelen = strlen(name);
307 for (i = 0; i < map_size; i++)
308 if (namelen == map[i].namelen &&
309 !string_enum_compare(name, map[i].name, namelen)) {
310 *value = map[i].value;
317 #define map_enum(attr, map, name) \
318 map_enum_do(map, ARRAY_SIZE(map), attr, name)
320 #define prefixcmp(str1, str2) \
321 strncmp(str1, str2, STRING_SIZE(str2))
324 suffixcmp(const char *str, int slen, const char *suffix)
326 size_t len = slen >= 0 ? slen : strlen(str);
327 size_t suffixlen = strlen(suffix);
329 return suffixlen < len ? strcmp(str + len - suffixlen, suffix) : -1;
334 mkdate(const time_t *time)
336 static char buf[DATE_COLS + 1];
340 return strftime(buf, sizeof(buf), DATE_FORMAT, &tm) ? buf : NULL;
345 argv_from_string(const char *argv[SIZEOF_ARG], int *argc, char *cmd)
349 while (*cmd && *argc < SIZEOF_ARG && (valuelen = strcspn(cmd, " \t"))) {
350 bool advance = cmd[valuelen] != 0;
353 argv[(*argc)++] = chomp_string(cmd);
354 cmd = chomp_string(cmd + valuelen + advance);
357 if (*argc < SIZEOF_ARG)
359 return *argc < SIZEOF_ARG;
363 argv_from_env(const char **argv, const char *name)
365 char *env = argv ? getenv(name) : NULL;
370 if (env && !argv_from_string(argv, &argc, env))
371 die("Too many arguments in the `%s` environment variable", name);
376 * Executing external commands.
380 IO_FD, /* File descriptor based IO. */
381 IO_BG, /* Execute command in the background. */
382 IO_FG, /* Execute command with same std{in,out,err}. */
383 IO_RD, /* Read only fork+exec IO. */
384 IO_WR, /* Write only fork+exec IO. */
385 IO_AP, /* Append fork+exec output to file. */
389 enum io_type type; /* The requested type of pipe. */
390 const char *dir; /* Directory from which to execute. */
391 pid_t pid; /* Pipe for reading or writing. */
392 int pipe; /* Pipe end for reading or writing. */
393 int error; /* Error status. */
394 const char *argv[SIZEOF_ARG]; /* Shell command arguments. */
395 char *buf; /* Read buffer. */
396 size_t bufalloc; /* Allocated buffer size. */
397 size_t bufsize; /* Buffer content size. */
398 char *bufpos; /* Current buffer position. */
399 unsigned int eof:1; /* Has end of file been reached. */
403 reset_io(struct io *io)
407 io->buf = io->bufpos = NULL;
408 io->bufalloc = io->bufsize = 0;
414 init_io(struct io *io, const char *dir, enum io_type type)
422 init_io_rd(struct io *io, const char *argv[], const char *dir,
423 enum format_flags flags)
425 init_io(io, dir, IO_RD);
426 return format_argv(io->argv, argv, flags);
430 io_open(struct io *io, const char *name)
432 init_io(io, NULL, IO_FD);
433 io->pipe = *name ? open(name, O_RDONLY) : STDIN_FILENO;
436 return io->pipe != -1;
440 kill_io(struct io *io)
442 return io->pid == 0 || kill(io->pid, SIGKILL) != -1;
446 done_io(struct io *io)
457 pid_t waiting = waitpid(pid, &status, 0);
462 report("waitpid failed (%s)", strerror(errno));
466 return waiting == pid &&
467 !WIFSIGNALED(status) &&
469 !WEXITSTATUS(status);
476 start_io(struct io *io)
478 int pipefds[2] = { -1, -1 };
480 if (io->type == IO_FD)
483 if ((io->type == IO_RD || io->type == IO_WR) &&
486 else if (io->type == IO_AP)
487 pipefds[1] = io->pipe;
489 if ((io->pid = fork())) {
490 if (pipefds[!(io->type == IO_WR)] != -1)
491 close(pipefds[!(io->type == IO_WR)]);
493 io->pipe = pipefds[!!(io->type == IO_WR)];
498 if (io->type != IO_FG) {
499 int devnull = open("/dev/null", O_RDWR);
500 int readfd = io->type == IO_WR ? pipefds[0] : devnull;
501 int writefd = (io->type == IO_RD || io->type == IO_AP)
502 ? pipefds[1] : devnull;
504 dup2(readfd, STDIN_FILENO);
505 dup2(writefd, STDOUT_FILENO);
506 dup2(devnull, STDERR_FILENO);
509 if (pipefds[0] != -1)
511 if (pipefds[1] != -1)
515 if (io->dir && *io->dir && chdir(io->dir) == -1)
516 die("Failed to change directory: %s", strerror(errno));
518 execvp(io->argv[0], (char *const*) io->argv);
519 die("Failed to execute program: %s", strerror(errno));
522 if (pipefds[!!(io->type == IO_WR)] != -1)
523 close(pipefds[!!(io->type == IO_WR)]);
528 run_io(struct io *io, const char **argv, const char *dir, enum io_type type)
530 init_io(io, dir, type);
531 if (!format_argv(io->argv, argv, FORMAT_NONE))
537 run_io_do(struct io *io)
539 return start_io(io) && done_io(io);
543 run_io_bg(const char **argv)
547 init_io(&io, NULL, IO_BG);
548 if (!format_argv(io.argv, argv, FORMAT_NONE))
550 return run_io_do(&io);
554 run_io_fg(const char **argv, const char *dir)
558 init_io(&io, dir, IO_FG);
559 if (!format_argv(io.argv, argv, FORMAT_NONE))
561 return run_io_do(&io);
565 run_io_append(const char **argv, enum format_flags flags, int fd)
569 init_io(&io, NULL, IO_AP);
571 if (format_argv(io.argv, argv, flags))
572 return run_io_do(&io);
578 run_io_rd(struct io *io, const char **argv, enum format_flags flags)
580 return init_io_rd(io, argv, NULL, flags) && start_io(io);
584 io_eof(struct io *io)
590 io_error(struct io *io)
596 io_strerror(struct io *io)
598 return strerror(io->error);
602 io_can_read(struct io *io)
604 struct timeval tv = { 0, 500 };
608 FD_SET(io->pipe, &fds);
610 return select(io->pipe + 1, &fds, NULL, NULL, &tv) > 0;
614 io_read(struct io *io, void *buf, size_t bufsize)
617 ssize_t readsize = read(io->pipe, buf, bufsize);
619 if (readsize < 0 && (errno == EAGAIN || errno == EINTR))
621 else if (readsize == -1)
623 else if (readsize == 0)
630 io_get(struct io *io, int c, bool can_read)
636 io->buf = io->bufpos = malloc(BUFSIZ);
639 io->bufalloc = BUFSIZ;
644 if (io->bufsize > 0) {
645 eol = memchr(io->bufpos, c, io->bufsize);
647 char *line = io->bufpos;
650 io->bufpos = eol + 1;
651 io->bufsize -= io->bufpos - line;
658 io->bufpos[io->bufsize] = 0;
668 if (io->bufsize > 0 && io->bufpos > io->buf)
669 memmove(io->buf, io->bufpos, io->bufsize);
671 io->bufpos = io->buf;
672 readsize = io_read(io, io->buf + io->bufsize, io->bufalloc - io->bufsize);
675 io->bufsize += readsize;
680 io_write(struct io *io, const void *buf, size_t bufsize)
684 while (!io_error(io) && written < bufsize) {
687 size = write(io->pipe, buf + written, bufsize - written);
688 if (size < 0 && (errno == EAGAIN || errno == EINTR))
696 return written == bufsize;
700 io_read_buf(struct io *io, char buf[], size_t bufsize)
704 io->buf = io->bufpos = buf;
705 io->bufalloc = bufsize;
706 error = !io_get(io, '\n', TRUE) && io_error(io);
709 return done_io(io) || error;
713 run_io_buf(const char **argv, char buf[], size_t bufsize)
717 return run_io_rd(&io, argv, FORMAT_NONE) && io_read_buf(&io, buf, bufsize);
721 io_load(struct io *io, const char *separators,
722 int (*read_property)(char *, size_t, char *, size_t))
730 while (state == OK && (name = io_get(io, '\n', TRUE))) {
735 name = chomp_string(name);
736 namelen = strcspn(name, separators);
740 value = chomp_string(name + namelen + 1);
741 valuelen = strlen(value);
748 state = read_property(name, namelen, value, valuelen);
751 if (state != ERR && io_error(io))
759 run_io_load(const char **argv, const char *separators,
760 int (*read_property)(char *, size_t, char *, size_t))
764 return init_io_rd(&io, argv, NULL, FORMAT_NONE)
765 ? io_load(&io, separators, read_property) : ERR;
774 /* XXX: Keep the view request first and in sync with views[]. */ \
775 REQ_GROUP("View switching") \
776 REQ_(VIEW_MAIN, "Show main view"), \
777 REQ_(VIEW_DIFF, "Show diff view"), \
778 REQ_(VIEW_LOG, "Show log view"), \
779 REQ_(VIEW_TREE, "Show tree view"), \
780 REQ_(VIEW_BLOB, "Show blob view"), \
781 REQ_(VIEW_BLAME, "Show blame view"), \
782 REQ_(VIEW_HELP, "Show help page"), \
783 REQ_(VIEW_PAGER, "Show pager view"), \
784 REQ_(VIEW_STATUS, "Show status view"), \
785 REQ_(VIEW_STAGE, "Show stage view"), \
787 REQ_GROUP("View manipulation") \
788 REQ_(ENTER, "Enter current line and scroll"), \
789 REQ_(NEXT, "Move to next"), \
790 REQ_(PREVIOUS, "Move to previous"), \
791 REQ_(PARENT, "Move to parent"), \
792 REQ_(VIEW_NEXT, "Move focus to next view"), \
793 REQ_(REFRESH, "Reload and refresh"), \
794 REQ_(MAXIMIZE, "Maximize the current view"), \
795 REQ_(VIEW_CLOSE, "Close the current view"), \
796 REQ_(QUIT, "Close all views and quit"), \
798 REQ_GROUP("View specific requests") \
799 REQ_(STATUS_UPDATE, "Update file status"), \
800 REQ_(STATUS_REVERT, "Revert file changes"), \
801 REQ_(STATUS_MERGE, "Merge file using external tool"), \
802 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
804 REQ_GROUP("Cursor navigation") \
805 REQ_(MOVE_UP, "Move cursor one line up"), \
806 REQ_(MOVE_DOWN, "Move cursor one line down"), \
807 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
808 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
809 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
810 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
812 REQ_GROUP("Scrolling") \
813 REQ_(SCROLL_LEFT, "Scroll two columns left"), \
814 REQ_(SCROLL_RIGHT, "Scroll two columns right"), \
815 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
816 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
817 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
818 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
820 REQ_GROUP("Searching") \
821 REQ_(SEARCH, "Search the view"), \
822 REQ_(SEARCH_BACK, "Search backwards in the view"), \
823 REQ_(FIND_NEXT, "Find next search match"), \
824 REQ_(FIND_PREV, "Find previous search match"), \
826 REQ_GROUP("Option manipulation") \
827 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
828 REQ_(TOGGLE_DATE, "Toggle date display"), \
829 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
830 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
831 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
834 REQ_(PROMPT, "Bring up the prompt"), \
835 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
836 REQ_(SHOW_VERSION, "Show version information"), \
837 REQ_(STOP_LOADING, "Stop all loading views"), \
838 REQ_(EDIT, "Open in editor"), \
839 REQ_(NONE, "Do nothing")
842 /* User action requests. */
844 #define REQ_GROUP(help)
845 #define REQ_(req, help) REQ_##req
847 /* Offset all requests to avoid conflicts with ncurses getch values. */
848 REQ_OFFSET = KEY_MAX + 1,
855 struct request_info {
856 enum request request;
862 static const struct request_info req_info[] = {
863 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
864 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
871 get_request(const char *name)
873 int namelen = strlen(name);
876 for (i = 0; i < ARRAY_SIZE(req_info); i++)
877 if (req_info[i].namelen == namelen &&
878 !string_enum_compare(req_info[i].name, name, namelen))
879 return req_info[i].request;
889 /* Option and state variables. */
890 static bool opt_date = TRUE;
891 static bool opt_author = TRUE;
892 static bool opt_line_number = FALSE;
893 static bool opt_line_graphics = TRUE;
894 static bool opt_rev_graph = FALSE;
895 static bool opt_show_refs = TRUE;
896 static int opt_num_interval = NUMBER_INTERVAL;
897 static double opt_hscroll = 0.50;
898 static int opt_tab_size = TAB_SIZE;
899 static int opt_author_cols = AUTHOR_COLS-1;
900 static char opt_path[SIZEOF_STR] = "";
901 static char opt_file[SIZEOF_STR] = "";
902 static char opt_ref[SIZEOF_REF] = "";
903 static char opt_head[SIZEOF_REF] = "";
904 static char opt_head_rev[SIZEOF_REV] = "";
905 static char opt_remote[SIZEOF_REF] = "";
906 static char opt_encoding[20] = "UTF-8";
907 static bool opt_utf8 = TRUE;
908 static char opt_codeset[20] = "UTF-8";
909 static iconv_t opt_iconv = ICONV_NONE;
910 static char opt_search[SIZEOF_STR] = "";
911 static char opt_cdup[SIZEOF_STR] = "";
912 static char opt_prefix[SIZEOF_STR] = "";
913 static char opt_git_dir[SIZEOF_STR] = "";
914 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
915 static char opt_editor[SIZEOF_STR] = "";
916 static FILE *opt_tty = NULL;
918 #define is_initial_commit() (!*opt_head_rev)
919 #define is_head_commit(rev) (!strcmp((rev), "HEAD") || !strcmp(opt_head_rev, (rev)))
923 * Line-oriented content detection.
927 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
928 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
929 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
930 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
931 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
932 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
933 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
934 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
935 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
936 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
937 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
938 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
939 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
940 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
941 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
942 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
943 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
944 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
945 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
946 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
947 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
948 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
949 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
950 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
951 LINE(AUTHOR, "author ", COLOR_GREEN, COLOR_DEFAULT, 0), \
952 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
953 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
954 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
955 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
956 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
957 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
958 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
959 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
960 LINE(MODE, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
961 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
962 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
963 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
964 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
965 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
966 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
967 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
968 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
969 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
970 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
971 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
972 LINE(TREE_HEAD, "", COLOR_DEFAULT, COLOR_DEFAULT, A_BOLD), \
973 LINE(TREE_DIR, "", COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL), \
974 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
975 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
976 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
977 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
978 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
979 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
980 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
981 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
984 #define LINE(type, line, fg, bg, attr) \
992 const char *name; /* Option name. */
993 int namelen; /* Size of option name. */
994 const char *line; /* The start of line to match. */
995 int linelen; /* Size of string to match. */
996 int fg, bg, attr; /* Color and text attributes for the lines. */
999 static struct line_info line_info[] = {
1000 #define LINE(type, line, fg, bg, attr) \
1001 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
1006 static enum line_type
1007 get_line_type(const char *line)
1009 int linelen = strlen(line);
1010 enum line_type type;
1012 for (type = 0; type < ARRAY_SIZE(line_info); type++)
1013 /* Case insensitive search matches Signed-off-by lines better. */
1014 if (linelen >= line_info[type].linelen &&
1015 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
1018 return LINE_DEFAULT;
1022 get_line_attr(enum line_type type)
1024 assert(type < ARRAY_SIZE(line_info));
1025 return COLOR_PAIR(type) | line_info[type].attr;
1028 static struct line_info *
1029 get_line_info(const char *name)
1031 size_t namelen = strlen(name);
1032 enum line_type type;
1034 for (type = 0; type < ARRAY_SIZE(line_info); type++)
1035 if (namelen == line_info[type].namelen &&
1036 !string_enum_compare(line_info[type].name, name, namelen))
1037 return &line_info[type];
1045 int default_bg = line_info[LINE_DEFAULT].bg;
1046 int default_fg = line_info[LINE_DEFAULT].fg;
1047 enum line_type type;
1051 if (assume_default_colors(default_fg, default_bg) == ERR) {
1052 default_bg = COLOR_BLACK;
1053 default_fg = COLOR_WHITE;
1056 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
1057 struct line_info *info = &line_info[type];
1058 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
1059 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
1061 init_pair(type, fg, bg);
1066 enum line_type type;
1069 unsigned int selected:1;
1070 unsigned int dirty:1;
1071 unsigned int cleareol:1;
1073 void *data; /* User data */
1083 enum request request;
1086 static const struct keybinding default_keybindings[] = {
1087 /* View switching */
1088 { 'm', REQ_VIEW_MAIN },
1089 { 'd', REQ_VIEW_DIFF },
1090 { 'l', REQ_VIEW_LOG },
1091 { 't', REQ_VIEW_TREE },
1092 { 'f', REQ_VIEW_BLOB },
1093 { 'B', REQ_VIEW_BLAME },
1094 { 'p', REQ_VIEW_PAGER },
1095 { 'h', REQ_VIEW_HELP },
1096 { 'S', REQ_VIEW_STATUS },
1097 { 'c', REQ_VIEW_STAGE },
1099 /* View manipulation */
1100 { 'q', REQ_VIEW_CLOSE },
1101 { KEY_TAB, REQ_VIEW_NEXT },
1102 { KEY_RETURN, REQ_ENTER },
1103 { KEY_UP, REQ_PREVIOUS },
1104 { KEY_DOWN, REQ_NEXT },
1105 { 'R', REQ_REFRESH },
1106 { KEY_F(5), REQ_REFRESH },
1107 { 'O', REQ_MAXIMIZE },
1109 /* Cursor navigation */
1110 { 'k', REQ_MOVE_UP },
1111 { 'j', REQ_MOVE_DOWN },
1112 { KEY_HOME, REQ_MOVE_FIRST_LINE },
1113 { KEY_END, REQ_MOVE_LAST_LINE },
1114 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
1115 { ' ', REQ_MOVE_PAGE_DOWN },
1116 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
1117 { 'b', REQ_MOVE_PAGE_UP },
1118 { '-', REQ_MOVE_PAGE_UP },
1121 { KEY_LEFT, REQ_SCROLL_LEFT },
1122 { KEY_RIGHT, REQ_SCROLL_RIGHT },
1123 { KEY_IC, REQ_SCROLL_LINE_UP },
1124 { KEY_DC, REQ_SCROLL_LINE_DOWN },
1125 { 'w', REQ_SCROLL_PAGE_UP },
1126 { 's', REQ_SCROLL_PAGE_DOWN },
1129 { '/', REQ_SEARCH },
1130 { '?', REQ_SEARCH_BACK },
1131 { 'n', REQ_FIND_NEXT },
1132 { 'N', REQ_FIND_PREV },
1136 { 'z', REQ_STOP_LOADING },
1137 { 'v', REQ_SHOW_VERSION },
1138 { 'r', REQ_SCREEN_REDRAW },
1139 { '.', REQ_TOGGLE_LINENO },
1140 { 'D', REQ_TOGGLE_DATE },
1141 { 'A', REQ_TOGGLE_AUTHOR },
1142 { 'g', REQ_TOGGLE_REV_GRAPH },
1143 { 'F', REQ_TOGGLE_REFS },
1144 { ':', REQ_PROMPT },
1145 { 'u', REQ_STATUS_UPDATE },
1146 { '!', REQ_STATUS_REVERT },
1147 { 'M', REQ_STATUS_MERGE },
1148 { '@', REQ_STAGE_NEXT },
1149 { ',', REQ_PARENT },
1153 #define KEYMAP_INFO \
1167 #define KEYMAP_(name) KEYMAP_##name
1172 static const struct enum_map keymap_table[] = {
1173 #define KEYMAP_(name) ENUM_MAP(#name, KEYMAP_##name)
1178 #define set_keymap(map, name) map_enum(map, keymap_table, name)
1180 struct keybinding_table {
1181 struct keybinding *data;
1185 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
1188 add_keybinding(enum keymap keymap, enum request request, int key)
1190 struct keybinding_table *table = &keybindings[keymap];
1192 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
1194 die("Failed to allocate keybinding");
1195 table->data[table->size].alias = key;
1196 table->data[table->size++].request = request;
1199 /* Looks for a key binding first in the given map, then in the generic map, and
1200 * lastly in the default keybindings. */
1202 get_keybinding(enum keymap keymap, int key)
1206 for (i = 0; i < keybindings[keymap].size; i++)
1207 if (keybindings[keymap].data[i].alias == key)
1208 return keybindings[keymap].data[i].request;
1210 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
1211 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
1212 return keybindings[KEYMAP_GENERIC].data[i].request;
1214 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
1215 if (default_keybindings[i].alias == key)
1216 return default_keybindings[i].request;
1218 return (enum request) key;
1227 static const struct key key_table[] = {
1228 { "Enter", KEY_RETURN },
1230 { "Backspace", KEY_BACKSPACE },
1232 { "Escape", KEY_ESC },
1233 { "Left", KEY_LEFT },
1234 { "Right", KEY_RIGHT },
1236 { "Down", KEY_DOWN },
1237 { "Insert", KEY_IC },
1238 { "Delete", KEY_DC },
1240 { "Home", KEY_HOME },
1242 { "PageUp", KEY_PPAGE },
1243 { "PageDown", KEY_NPAGE },
1253 { "F10", KEY_F(10) },
1254 { "F11", KEY_F(11) },
1255 { "F12", KEY_F(12) },
1259 get_key_value(const char *name)
1263 for (i = 0; i < ARRAY_SIZE(key_table); i++)
1264 if (!strcasecmp(key_table[i].name, name))
1265 return key_table[i].value;
1267 if (strlen(name) == 1 && isprint(*name))
1274 get_key_name(int key_value)
1276 static char key_char[] = "'X'";
1277 const char *seq = NULL;
1280 for (key = 0; key < ARRAY_SIZE(key_table); key++)
1281 if (key_table[key].value == key_value)
1282 seq = key_table[key].name;
1286 isprint(key_value)) {
1287 key_char[1] = (char) key_value;
1291 return seq ? seq : "(no key)";
1295 get_key(enum request request)
1297 static char buf[BUFSIZ];
1304 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1305 const struct keybinding *keybinding = &default_keybindings[i];
1307 if (keybinding->request != request)
1310 if (!string_format_from(buf, &pos, "%s%s", sep,
1311 get_key_name(keybinding->alias)))
1312 return "Too many keybindings!";
1319 struct run_request {
1322 const char *argv[SIZEOF_ARG];
1325 static struct run_request *run_request;
1326 static size_t run_requests;
1328 DEFINE_ALLOCATOR(realloc_run_requests, struct run_request, 8)
1331 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
1333 struct run_request *req;
1335 if (argc >= ARRAY_SIZE(req->argv) - 1)
1338 if (!realloc_run_requests(&run_request, run_requests, 1))
1341 req = &run_request[run_requests];
1342 req->keymap = keymap;
1344 req->argv[0] = NULL;
1346 if (!format_argv(req->argv, argv, FORMAT_NONE))
1349 return REQ_NONE + ++run_requests;
1352 static struct run_request *
1353 get_run_request(enum request request)
1355 if (request <= REQ_NONE)
1357 return &run_request[request - REQ_NONE - 1];
1361 add_builtin_run_requests(void)
1363 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
1364 const char *gc[] = { "git", "gc", NULL };
1371 { KEYMAP_MAIN, 'C', ARRAY_SIZE(cherry_pick) - 1, cherry_pick },
1372 { KEYMAP_GENERIC, 'G', ARRAY_SIZE(gc) - 1, gc },
1376 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1379 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argc, reqs[i].argv);
1380 if (req != REQ_NONE)
1381 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1386 * User config file handling.
1389 static int config_lineno;
1390 static bool config_errors;
1391 static const char *config_msg;
1393 static const struct enum_map color_map[] = {
1394 #define COLOR_MAP(name) ENUM_MAP(#name, COLOR_##name)
1406 static const struct enum_map attr_map[] = {
1407 #define ATTR_MAP(name) ENUM_MAP(#name, A_##name)
1414 ATTR_MAP(UNDERLINE),
1417 #define set_attribute(attr, name) map_enum(attr, attr_map, name)
1419 static int parse_step(double *opt, const char *arg)
1422 if (!strchr(arg, '%'))
1425 /* "Shift down" so 100% and 1 does not conflict. */
1426 *opt = (*opt - 1) / 100;
1429 config_msg = "Step value larger than 100%";
1434 config_msg = "Invalid step value";
1441 parse_int(int *opt, const char *arg, int min, int max)
1443 int value = atoi(arg);
1445 if (min <= value && value <= max) {
1450 config_msg = "Integer value out of bound";
1455 set_color(int *color, const char *name)
1457 if (map_enum(color, color_map, name))
1459 if (!prefixcmp(name, "color"))
1460 return parse_int(color, name + 5, 0, 255) == OK;
1464 /* Wants: object fgcolor bgcolor [attribute] */
1466 option_color_command(int argc, const char *argv[])
1468 struct line_info *info;
1470 if (argc != 3 && argc != 4) {
1471 config_msg = "Wrong number of arguments given to color command";
1475 info = get_line_info(argv[0]);
1477 static const struct enum_map obsolete[] = {
1478 ENUM_MAP("main-delim", LINE_DELIMITER),
1479 ENUM_MAP("main-date", LINE_DATE),
1480 ENUM_MAP("main-author", LINE_AUTHOR),
1484 if (!map_enum(&index, obsolete, argv[0])) {
1485 config_msg = "Unknown color name";
1488 info = &line_info[index];
1491 if (!set_color(&info->fg, argv[1]) ||
1492 !set_color(&info->bg, argv[2])) {
1493 config_msg = "Unknown color";
1497 if (argc == 4 && !set_attribute(&info->attr, argv[3])) {
1498 config_msg = "Unknown attribute";
1505 static int parse_bool(bool *opt, const char *arg)
1507 *opt = (!strcmp(arg, "1") || !strcmp(arg, "true") || !strcmp(arg, "yes"))
1513 parse_string(char *opt, const char *arg, size_t optsize)
1515 int arglen = strlen(arg);
1520 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1521 config_msg = "Unmatched quotation";
1524 arg += 1; arglen -= 2;
1526 string_ncopy_do(opt, optsize, arg, arglen);
1531 /* Wants: name = value */
1533 option_set_command(int argc, const char *argv[])
1536 config_msg = "Wrong number of arguments given to set command";
1540 if (strcmp(argv[1], "=")) {
1541 config_msg = "No value assigned";
1545 if (!strcmp(argv[0], "show-author"))
1546 return parse_bool(&opt_author, argv[2]);
1548 if (!strcmp(argv[0], "show-date"))
1549 return parse_bool(&opt_date, argv[2]);
1551 if (!strcmp(argv[0], "show-rev-graph"))
1552 return parse_bool(&opt_rev_graph, argv[2]);
1554 if (!strcmp(argv[0], "show-refs"))
1555 return parse_bool(&opt_show_refs, argv[2]);
1557 if (!strcmp(argv[0], "show-line-numbers"))
1558 return parse_bool(&opt_line_number, argv[2]);
1560 if (!strcmp(argv[0], "line-graphics"))
1561 return parse_bool(&opt_line_graphics, argv[2]);
1563 if (!strcmp(argv[0], "line-number-interval"))
1564 return parse_int(&opt_num_interval, argv[2], 1, 1024);
1566 if (!strcmp(argv[0], "author-width"))
1567 return parse_int(&opt_author_cols, argv[2], 0, 1024);
1569 if (!strcmp(argv[0], "horizontal-scroll"))
1570 return parse_step(&opt_hscroll, argv[2]);
1572 if (!strcmp(argv[0], "tab-size"))
1573 return parse_int(&opt_tab_size, argv[2], 1, 1024);
1575 if (!strcmp(argv[0], "commit-encoding"))
1576 return parse_string(opt_encoding, argv[2], sizeof(opt_encoding));
1578 config_msg = "Unknown variable name";
1582 /* Wants: mode request key */
1584 option_bind_command(int argc, const char *argv[])
1586 enum request request;
1591 config_msg = "Wrong number of arguments given to bind command";
1595 if (set_keymap(&keymap, argv[0]) == ERR) {
1596 config_msg = "Unknown key map";
1600 key = get_key_value(argv[1]);
1602 config_msg = "Unknown key";
1606 request = get_request(argv[2]);
1607 if (request == REQ_NONE) {
1608 static const struct enum_map obsolete[] = {
1609 ENUM_MAP("cherry-pick", REQ_NONE),
1610 ENUM_MAP("screen-resize", REQ_NONE),
1611 ENUM_MAP("tree-parent", REQ_PARENT),
1615 if (map_enum(&alias, obsolete, argv[2])) {
1616 if (alias != REQ_NONE)
1617 add_keybinding(keymap, alias, key);
1618 config_msg = "Obsolete request name";
1622 if (request == REQ_NONE && *argv[2]++ == '!')
1623 request = add_run_request(keymap, key, argc - 2, argv + 2);
1624 if (request == REQ_NONE) {
1625 config_msg = "Unknown request name";
1629 add_keybinding(keymap, request, key);
1635 set_option(const char *opt, char *value)
1637 const char *argv[SIZEOF_ARG];
1640 if (!argv_from_string(argv, &argc, value)) {
1641 config_msg = "Too many option arguments";
1645 if (!strcmp(opt, "color"))
1646 return option_color_command(argc, argv);
1648 if (!strcmp(opt, "set"))
1649 return option_set_command(argc, argv);
1651 if (!strcmp(opt, "bind"))
1652 return option_bind_command(argc, argv);
1654 config_msg = "Unknown option command";
1659 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1664 config_msg = "Internal error";
1666 /* Check for comment markers, since read_properties() will
1667 * only ensure opt and value are split at first " \t". */
1668 optlen = strcspn(opt, "#");
1672 if (opt[optlen] != 0) {
1673 config_msg = "No option value";
1677 /* Look for comment endings in the value. */
1678 size_t len = strcspn(value, "#");
1680 if (len < valuelen) {
1682 value[valuelen] = 0;
1685 status = set_option(opt, value);
1688 if (status == ERR) {
1689 warn("Error on line %d, near '%.*s': %s",
1690 config_lineno, (int) optlen, opt, config_msg);
1691 config_errors = TRUE;
1694 /* Always keep going if errors are encountered. */
1699 load_option_file(const char *path)
1703 /* It's OK that the file doesn't exist. */
1704 if (!io_open(&io, path))
1708 config_errors = FALSE;
1710 if (io_load(&io, " \t", read_option) == ERR ||
1711 config_errors == TRUE)
1712 warn("Errors while loading %s.", path);
1718 const char *home = getenv("HOME");
1719 const char *tigrc_user = getenv("TIGRC_USER");
1720 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1721 char buf[SIZEOF_STR];
1723 add_builtin_run_requests();
1726 tigrc_system = SYSCONFDIR "/tigrc";
1727 load_option_file(tigrc_system);
1730 if (!home || !string_format(buf, "%s/.tigrc", home))
1734 load_option_file(tigrc_user);
1747 /* The display array of active views and the index of the current view. */
1748 static struct view *display[2];
1749 static unsigned int current_view;
1751 #define foreach_displayed_view(view, i) \
1752 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1754 #define displayed_views() (display[1] != NULL ? 2 : 1)
1756 /* Current head and commit ID */
1757 static char ref_blob[SIZEOF_REF] = "";
1758 static char ref_commit[SIZEOF_REF] = "HEAD";
1759 static char ref_head[SIZEOF_REF] = "HEAD";
1762 const char *name; /* View name */
1763 const char *cmd_env; /* Command line set via environment */
1764 const char *id; /* Points to either of ref_{head,commit,blob} */
1766 struct view_ops *ops; /* View operations */
1768 enum keymap keymap; /* What keymap does this view have */
1769 bool git_dir; /* Whether the view requires a git directory. */
1771 char ref[SIZEOF_REF]; /* Hovered commit reference */
1772 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1774 int height, width; /* The width and height of the main window */
1775 WINDOW *win; /* The main window */
1776 WINDOW *title; /* The title window living below the main window */
1779 unsigned long offset; /* Offset of the window top */
1780 unsigned long yoffset; /* Offset from the window side. */
1781 unsigned long lineno; /* Current line number */
1782 unsigned long p_offset; /* Previous offset of the window top */
1783 unsigned long p_yoffset;/* Previous offset from the window side */
1784 unsigned long p_lineno; /* Previous current line number */
1785 bool p_restore; /* Should the previous position be restored. */
1788 char grep[SIZEOF_STR]; /* Search string */
1789 regex_t *regex; /* Pre-compiled regexp */
1791 /* If non-NULL, points to the view that opened this view. If this view
1792 * is closed tig will switch back to the parent view. */
1793 struct view *parent;
1796 size_t lines; /* Total number of lines */
1797 struct line *line; /* Line index */
1798 unsigned int digits; /* Number of digits in the lines member. */
1801 struct line *curline; /* Line currently being drawn. */
1802 enum line_type curtype; /* Attribute currently used for drawing. */
1803 unsigned long col; /* Column when drawing. */
1804 bool has_scrolled; /* View was scrolled. */
1814 /* What type of content being displayed. Used in the title bar. */
1816 /* Default command arguments. */
1818 /* Open and reads in all view content. */
1819 bool (*open)(struct view *view);
1820 /* Read one line; updates view->line. */
1821 bool (*read)(struct view *view, char *data);
1822 /* Draw one line; @lineno must be < view->height. */
1823 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1824 /* Depending on view handle a special requests. */
1825 enum request (*request)(struct view *view, enum request request, struct line *line);
1826 /* Search for regexp in a line. */
1827 bool (*grep)(struct view *view, struct line *line);
1829 void (*select)(struct view *view, struct line *line);
1832 static struct view_ops blame_ops;
1833 static struct view_ops blob_ops;
1834 static struct view_ops diff_ops;
1835 static struct view_ops help_ops;
1836 static struct view_ops log_ops;
1837 static struct view_ops main_ops;
1838 static struct view_ops pager_ops;
1839 static struct view_ops stage_ops;
1840 static struct view_ops status_ops;
1841 static struct view_ops tree_ops;
1843 #define VIEW_STR(name, env, ref, ops, map, git) \
1844 { name, #env, ref, ops, map, git }
1846 #define VIEW_(id, name, ops, git, ref) \
1847 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1850 static struct view views[] = {
1851 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1852 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1853 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1854 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1855 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1856 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1857 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1858 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1859 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1860 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1863 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1864 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1866 #define foreach_view(view, i) \
1867 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1869 #define view_is_displayed(view) \
1870 (view == display[0] || view == display[1])
1877 static chtype line_graphics[] = {
1878 /* LINE_GRAPHIC_VLINE: */ '|'
1882 set_view_attr(struct view *view, enum line_type type)
1884 if (!view->curline->selected && view->curtype != type) {
1885 wattrset(view->win, get_line_attr(type));
1886 wchgat(view->win, -1, 0, type, NULL);
1887 view->curtype = type;
1892 draw_chars(struct view *view, enum line_type type, const char *string,
1893 int max_len, bool use_tilde)
1897 int trimmed = FALSE;
1898 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1904 len = utf8_length(&string, skip, &col, max_len, &trimmed, use_tilde);
1906 col = len = strlen(string);
1907 if (len > max_len) {
1911 col = len = max_len;
1916 set_view_attr(view, type);
1918 waddnstr(view->win, string, len);
1919 if (trimmed && use_tilde) {
1920 set_view_attr(view, LINE_DELIMITER);
1921 waddch(view->win, '~');
1929 draw_space(struct view *view, enum line_type type, int max, int spaces)
1931 static char space[] = " ";
1934 spaces = MIN(max, spaces);
1936 while (spaces > 0) {
1937 int len = MIN(spaces, sizeof(space) - 1);
1939 col += draw_chars(view, type, space, len, FALSE);
1947 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1949 view->col += draw_chars(view, type, string, view->width + view->yoffset - view->col, trim);
1950 return view->width + view->yoffset <= view->col;
1954 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1956 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1957 int max = view->width + view->yoffset - view->col;
1963 set_view_attr(view, type);
1964 /* Using waddch() instead of waddnstr() ensures that
1965 * they'll be rendered correctly for the cursor line. */
1966 for (i = skip; i < size; i++)
1967 waddch(view->win, graphic[i]);
1970 if (size < max && skip <= size)
1971 waddch(view->win, ' ');
1974 return view->width + view->yoffset <= view->col;
1978 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1980 int max = MIN(view->width + view->yoffset - view->col, len);
1984 col = draw_chars(view, type, text, max - 1, trim);
1986 col = draw_space(view, type, max - 1, max - 1);
1989 view->col += draw_space(view, LINE_DEFAULT, max - col, max - col);
1990 return view->width + view->yoffset <= view->col;
1994 draw_date(struct view *view, time_t *time)
1996 const char *date = mkdate(time);
1998 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
2002 draw_author(struct view *view, const char *author)
2004 bool trim = opt_author_cols == 0 || opt_author_cols > 5 || !author;
2007 static char initials[10];
2010 #define is_initial_sep(c) (isspace(c) || ispunct(c) || (c) == '@')
2012 memset(initials, 0, sizeof(initials));
2013 for (pos = 0; *author && pos < opt_author_cols - 1; author++, pos++) {
2014 while (is_initial_sep(*author))
2016 strncpy(&initials[pos], author, sizeof(initials) - 1 - pos);
2017 while (*author && !is_initial_sep(author[1]))
2024 return draw_field(view, LINE_AUTHOR, author, opt_author_cols, trim);
2028 draw_mode(struct view *view, mode_t mode)
2034 else if (S_ISLNK(mode))
2036 else if (S_ISGITLINK(mode))
2038 else if (S_ISREG(mode) && mode & S_IXUSR)
2040 else if (S_ISREG(mode))
2045 return draw_field(view, LINE_MODE, str, STRING_SIZE("-rw-r--r-- "), FALSE);
2049 draw_lineno(struct view *view, unsigned int lineno)
2052 int digits3 = view->digits < 3 ? 3 : view->digits;
2053 int max = MIN(view->width + view->yoffset - view->col, digits3);
2056 lineno += view->offset + 1;
2057 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
2058 static char fmt[] = "%1ld";
2060 fmt[1] = '0' + (view->digits <= 9 ? digits3 : 1);
2061 if (string_format(number, fmt, lineno))
2065 view->col += draw_chars(view, LINE_LINE_NUMBER, text, max, TRUE);
2067 view->col += draw_space(view, LINE_LINE_NUMBER, max, digits3);
2068 return draw_graphic(view, LINE_DEFAULT, &line_graphics[LINE_GRAPHIC_VLINE], 1);
2072 draw_view_line(struct view *view, unsigned int lineno)
2075 bool selected = (view->offset + lineno == view->lineno);
2077 assert(view_is_displayed(view));
2079 if (view->offset + lineno >= view->lines)
2082 line = &view->line[view->offset + lineno];
2084 wmove(view->win, lineno, 0);
2086 wclrtoeol(view->win);
2088 view->curline = line;
2089 view->curtype = LINE_NONE;
2090 line->selected = FALSE;
2091 line->dirty = line->cleareol = 0;
2094 set_view_attr(view, LINE_CURSOR);
2095 line->selected = TRUE;
2096 view->ops->select(view, line);
2099 return view->ops->draw(view, line, lineno);
2103 redraw_view_dirty(struct view *view)
2108 for (lineno = 0; lineno < view->height; lineno++) {
2109 if (view->offset + lineno >= view->lines)
2111 if (!view->line[view->offset + lineno].dirty)
2114 if (!draw_view_line(view, lineno))
2120 wnoutrefresh(view->win);
2124 redraw_view_from(struct view *view, int lineno)
2126 assert(0 <= lineno && lineno < view->height);
2128 for (; lineno < view->height; lineno++) {
2129 if (!draw_view_line(view, lineno))
2133 wnoutrefresh(view->win);
2137 redraw_view(struct view *view)
2140 redraw_view_from(view, 0);
2145 update_view_title(struct view *view)
2147 char buf[SIZEOF_STR];
2148 char state[SIZEOF_STR];
2149 size_t bufpos = 0, statelen = 0;
2151 assert(view_is_displayed(view));
2153 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2154 unsigned int view_lines = view->offset + view->height;
2155 unsigned int lines = view->lines
2156 ? MIN(view_lines, view->lines) * 100 / view->lines
2159 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2168 time_t secs = time(NULL) - view->start_time;
2170 /* Three git seconds are a long time ... */
2172 string_format_from(state, &statelen, " loading %lds", secs);
2175 string_format_from(buf, &bufpos, "[%s]", view->name);
2176 if (*view->ref && bufpos < view->width) {
2177 size_t refsize = strlen(view->ref);
2178 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2180 if (minsize < view->width)
2181 refsize = view->width - minsize + 7;
2182 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2185 if (statelen && bufpos < view->width) {
2186 string_format_from(buf, &bufpos, "%s", state);
2189 if (view == display[current_view])
2190 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2192 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2194 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2195 wclrtoeol(view->title);
2196 wnoutrefresh(view->title);
2200 resize_display(void)
2203 struct view *base = display[0];
2204 struct view *view = display[1] ? display[1] : display[0];
2206 /* Setup window dimensions */
2208 getmaxyx(stdscr, base->height, base->width);
2210 /* Make room for the status window. */
2214 /* Horizontal split. */
2215 view->width = base->width;
2216 view->height = SCALE_SPLIT_VIEW(base->height);
2217 base->height -= view->height;
2219 /* Make room for the title bar. */
2223 /* Make room for the title bar. */
2228 foreach_displayed_view (view, i) {
2230 view->win = newwin(view->height, 0, offset, 0);
2232 die("Failed to create %s view", view->name);
2234 scrollok(view->win, FALSE);
2236 view->title = newwin(1, 0, offset + view->height, 0);
2238 die("Failed to create title window");
2241 wresize(view->win, view->height, view->width);
2242 mvwin(view->win, offset, 0);
2243 mvwin(view->title, offset + view->height, 0);
2246 offset += view->height + 1;
2251 redraw_display(bool clear)
2256 foreach_displayed_view (view, i) {
2260 update_view_title(view);
2265 toggle_view_option(bool *option, const char *help)
2268 redraw_display(FALSE);
2269 report("%sabling %s", *option ? "En" : "Dis", help);
2273 maximize_view(struct view *view)
2275 memset(display, 0, sizeof(display));
2277 display[current_view] = view;
2279 redraw_display(FALSE);
2289 goto_view_line(struct view *view, unsigned long offset, unsigned long lineno)
2291 if (lineno >= view->lines)
2292 lineno = view->lines > 0 ? view->lines - 1 : 0;
2294 if (offset > lineno || offset + view->height <= lineno) {
2295 unsigned long half = view->height / 2;
2298 offset = lineno - half;
2303 if (offset != view->offset || lineno != view->lineno) {
2304 view->offset = offset;
2305 view->lineno = lineno;
2313 apply_step(double step, int value)
2317 value *= step + 0.01;
2318 return value ? value : 1;
2321 /* Scrolling backend */
2323 do_scroll_view(struct view *view, int lines)
2325 bool redraw_current_line = FALSE;
2327 /* The rendering expects the new offset. */
2328 view->offset += lines;
2330 assert(0 <= view->offset && view->offset < view->lines);
2333 /* Move current line into the view. */
2334 if (view->lineno < view->offset) {
2335 view->lineno = view->offset;
2336 redraw_current_line = TRUE;
2337 } else if (view->lineno >= view->offset + view->height) {
2338 view->lineno = view->offset + view->height - 1;
2339 redraw_current_line = TRUE;
2342 assert(view->offset <= view->lineno && view->lineno < view->lines);
2344 /* Redraw the whole screen if scrolling is pointless. */
2345 if (view->height < ABS(lines)) {
2349 int line = lines > 0 ? view->height - lines : 0;
2350 int end = line + ABS(lines);
2352 scrollok(view->win, TRUE);
2353 wscrl(view->win, lines);
2354 scrollok(view->win, FALSE);
2356 while (line < end && draw_view_line(view, line))
2359 if (redraw_current_line)
2360 draw_view_line(view, view->lineno - view->offset);
2361 wnoutrefresh(view->win);
2364 view->has_scrolled = TRUE;
2368 /* Scroll frontend */
2370 scroll_view(struct view *view, enum request request)
2374 assert(view_is_displayed(view));
2377 case REQ_SCROLL_LEFT:
2378 if (view->yoffset == 0) {
2379 report("Cannot scroll beyond the first column");
2382 if (view->yoffset <= apply_step(opt_hscroll, view->width))
2385 view->yoffset -= apply_step(opt_hscroll, view->width);
2386 redraw_view_from(view, 0);
2389 case REQ_SCROLL_RIGHT:
2390 view->yoffset += apply_step(opt_hscroll, view->width);
2394 case REQ_SCROLL_PAGE_DOWN:
2395 lines = view->height;
2396 case REQ_SCROLL_LINE_DOWN:
2397 if (view->offset + lines > view->lines)
2398 lines = view->lines - view->offset;
2400 if (lines == 0 || view->offset + view->height >= view->lines) {
2401 report("Cannot scroll beyond the last line");
2406 case REQ_SCROLL_PAGE_UP:
2407 lines = view->height;
2408 case REQ_SCROLL_LINE_UP:
2409 if (lines > view->offset)
2410 lines = view->offset;
2413 report("Cannot scroll beyond the first line");
2421 die("request %d not handled in switch", request);
2424 do_scroll_view(view, lines);
2429 move_view(struct view *view, enum request request)
2431 int scroll_steps = 0;
2435 case REQ_MOVE_FIRST_LINE:
2436 steps = -view->lineno;
2439 case REQ_MOVE_LAST_LINE:
2440 steps = view->lines - view->lineno - 1;
2443 case REQ_MOVE_PAGE_UP:
2444 steps = view->height > view->lineno
2445 ? -view->lineno : -view->height;
2448 case REQ_MOVE_PAGE_DOWN:
2449 steps = view->lineno + view->height >= view->lines
2450 ? view->lines - view->lineno - 1 : view->height;
2462 die("request %d not handled in switch", request);
2465 if (steps <= 0 && view->lineno == 0) {
2466 report("Cannot move beyond the first line");
2469 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2470 report("Cannot move beyond the last line");
2474 /* Move the current line */
2475 view->lineno += steps;
2476 assert(0 <= view->lineno && view->lineno < view->lines);
2478 /* Check whether the view needs to be scrolled */
2479 if (view->lineno < view->offset ||
2480 view->lineno >= view->offset + view->height) {
2481 scroll_steps = steps;
2482 if (steps < 0 && -steps > view->offset) {
2483 scroll_steps = -view->offset;
2485 } else if (steps > 0) {
2486 if (view->lineno == view->lines - 1 &&
2487 view->lines > view->height) {
2488 scroll_steps = view->lines - view->offset - 1;
2489 if (scroll_steps >= view->height)
2490 scroll_steps -= view->height - 1;
2495 if (!view_is_displayed(view)) {
2496 view->offset += scroll_steps;
2497 assert(0 <= view->offset && view->offset < view->lines);
2498 view->ops->select(view, &view->line[view->lineno]);
2502 /* Repaint the old "current" line if we be scrolling */
2503 if (ABS(steps) < view->height)
2504 draw_view_line(view, view->lineno - steps - view->offset);
2507 do_scroll_view(view, scroll_steps);
2511 /* Draw the current line */
2512 draw_view_line(view, view->lineno - view->offset);
2514 wnoutrefresh(view->win);
2523 static void search_view(struct view *view, enum request request);
2526 grep_text(struct view *view, const char *text[])
2531 for (i = 0; text[i]; i++)
2533 regexec(view->regex, text[i], 1, &pmatch, 0) != REG_NOMATCH)
2539 select_view_line(struct view *view, unsigned long lineno)
2541 unsigned long old_lineno = view->lineno;
2542 unsigned long old_offset = view->offset;
2544 if (goto_view_line(view, view->offset, lineno)) {
2545 if (view_is_displayed(view)) {
2546 if (old_offset != view->offset) {
2549 draw_view_line(view, old_lineno - view->offset);
2550 draw_view_line(view, view->lineno - view->offset);
2551 wnoutrefresh(view->win);
2554 view->ops->select(view, &view->line[view->lineno]);
2560 find_next(struct view *view, enum request request)
2562 unsigned long lineno = view->lineno;
2567 report("No previous search");
2569 search_view(view, request);
2579 case REQ_SEARCH_BACK:
2588 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2589 lineno += direction;
2591 /* Note, lineno is unsigned long so will wrap around in which case it
2592 * will become bigger than view->lines. */
2593 for (; lineno < view->lines; lineno += direction) {
2594 if (view->ops->grep(view, &view->line[lineno])) {
2595 select_view_line(view, lineno);
2596 report("Line %ld matches '%s'", lineno + 1, view->grep);
2601 report("No match found for '%s'", view->grep);
2605 search_view(struct view *view, enum request request)
2610 regfree(view->regex);
2613 view->regex = calloc(1, sizeof(*view->regex));
2618 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2619 if (regex_err != 0) {
2620 char buf[SIZEOF_STR] = "unknown error";
2622 regerror(regex_err, view->regex, buf, sizeof(buf));
2623 report("Search failed: %s", buf);
2627 string_copy(view->grep, opt_search);
2629 find_next(view, request);
2633 * Incremental updating
2637 reset_view(struct view *view)
2641 for (i = 0; i < view->lines; i++)
2642 free(view->line[i].data);
2645 view->p_offset = view->offset;
2646 view->p_yoffset = view->yoffset;
2647 view->p_lineno = view->lineno;
2655 view->update_secs = 0;
2659 free_argv(const char *argv[])
2663 for (argc = 0; argv[argc]; argc++)
2664 free((void *) argv[argc]);
2668 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2670 char buf[SIZEOF_STR];
2672 bool noreplace = flags == FORMAT_NONE;
2674 free_argv(dst_argv);
2676 for (argc = 0; src_argv[argc]; argc++) {
2677 const char *arg = src_argv[argc];
2681 char *next = strstr(arg, "%(");
2682 int len = next - arg;
2685 if (!next || noreplace) {
2686 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2691 } else if (!prefixcmp(next, "%(directory)")) {
2694 } else if (!prefixcmp(next, "%(file)")) {
2697 } else if (!prefixcmp(next, "%(ref)")) {
2698 value = *opt_ref ? opt_ref : "HEAD";
2700 } else if (!prefixcmp(next, "%(head)")) {
2703 } else if (!prefixcmp(next, "%(commit)")) {
2706 } else if (!prefixcmp(next, "%(blob)")) {
2710 report("Unknown replacement: `%s`", next);
2714 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2717 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2720 dst_argv[argc] = strdup(buf);
2721 if (!dst_argv[argc])
2725 dst_argv[argc] = NULL;
2727 return src_argv[argc] == NULL;
2731 restore_view_position(struct view *view)
2733 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2736 /* Changing the view position cancels the restoring. */
2737 /* FIXME: Changing back to the first line is not detected. */
2738 if (view->offset != 0 || view->lineno != 0) {
2739 view->p_restore = FALSE;
2743 if (goto_view_line(view, view->p_offset, view->p_lineno) &&
2744 view_is_displayed(view))
2747 view->yoffset = view->p_yoffset;
2748 view->p_restore = FALSE;
2754 end_update(struct view *view, bool force)
2758 while (!view->ops->read(view, NULL))
2761 set_nonblocking_input(FALSE);
2763 kill_io(view->pipe);
2764 done_io(view->pipe);
2769 setup_update(struct view *view, const char *vid)
2771 set_nonblocking_input(TRUE);
2773 string_copy_rev(view->vid, vid);
2774 view->pipe = &view->io;
2775 view->start_time = time(NULL);
2779 prepare_update(struct view *view, const char *argv[], const char *dir,
2780 enum format_flags flags)
2783 end_update(view, TRUE);
2784 return init_io_rd(&view->io, argv, dir, flags);
2788 prepare_update_file(struct view *view, const char *name)
2791 end_update(view, TRUE);
2792 return io_open(&view->io, name);
2796 begin_update(struct view *view, bool refresh)
2799 end_update(view, TRUE);
2802 if (!start_io(&view->io))
2806 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2809 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2812 /* Put the current ref_* value to the view title ref
2813 * member. This is needed by the blob view. Most other
2814 * views sets it automatically after loading because the
2815 * first line is a commit line. */
2816 string_copy_rev(view->ref, view->id);
2819 setup_update(view, view->id);
2825 update_view(struct view *view)
2827 char out_buffer[BUFSIZ * 2];
2829 /* Clear the view and redraw everything since the tree sorting
2830 * might have rearranged things. */
2831 bool redraw = view->lines == 0;
2832 bool can_read = TRUE;
2837 if (!io_can_read(view->pipe)) {
2838 if (view->lines == 0 && view_is_displayed(view)) {
2839 time_t secs = time(NULL) - view->start_time;
2841 if (secs > 1 && secs > view->update_secs) {
2842 if (view->update_secs == 0)
2844 update_view_title(view);
2845 view->update_secs = secs;
2851 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2852 if (opt_iconv != ICONV_NONE) {
2853 ICONV_CONST char *inbuf = line;
2854 size_t inlen = strlen(line) + 1;
2856 char *outbuf = out_buffer;
2857 size_t outlen = sizeof(out_buffer);
2861 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2862 if (ret != (size_t) -1)
2866 if (!view->ops->read(view, line)) {
2867 report("Allocation failure");
2868 end_update(view, TRUE);
2874 unsigned long lines = view->lines;
2877 for (digits = 0; lines; digits++)
2880 /* Keep the displayed view in sync with line number scaling. */
2881 if (digits != view->digits) {
2882 view->digits = digits;
2883 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2888 if (io_error(view->pipe)) {
2889 report("Failed to read: %s", io_strerror(view->pipe));
2890 end_update(view, TRUE);
2892 } else if (io_eof(view->pipe)) {
2894 end_update(view, FALSE);
2897 if (restore_view_position(view))
2900 if (!view_is_displayed(view))
2904 redraw_view_from(view, 0);
2906 redraw_view_dirty(view);
2908 /* Update the title _after_ the redraw so that if the redraw picks up a
2909 * commit reference in view->ref it'll be available here. */
2910 update_view_title(view);
2914 DEFINE_ALLOCATOR(realloc_lines, struct line, 256)
2916 static struct line *
2917 add_line_data(struct view *view, void *data, enum line_type type)
2921 if (!realloc_lines(&view->line, view->lines, 1))
2924 line = &view->line[view->lines++];
2925 memset(line, 0, sizeof(*line));
2933 static struct line *
2934 add_line_text(struct view *view, const char *text, enum line_type type)
2936 char *data = text ? strdup(text) : NULL;
2938 return data ? add_line_data(view, data, type) : NULL;
2941 static struct line *
2942 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2944 char buf[SIZEOF_STR];
2947 va_start(args, fmt);
2948 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2952 return buf[0] ? add_line_text(view, buf, type) : NULL;
2960 OPEN_DEFAULT = 0, /* Use default view switching. */
2961 OPEN_SPLIT = 1, /* Split current view. */
2962 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2963 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2964 OPEN_PREPARED = 32, /* Open already prepared command. */
2968 open_view(struct view *prev, enum request request, enum open_flags flags)
2970 bool split = !!(flags & OPEN_SPLIT);
2971 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2972 bool nomaximize = !!(flags & OPEN_REFRESH);
2973 struct view *view = VIEW(request);
2974 int nviews = displayed_views();
2975 struct view *base_view = display[0];
2977 if (view == prev && nviews == 1 && !reload) {
2978 report("Already in %s view", view->name);
2982 if (view->git_dir && !opt_git_dir[0]) {
2983 report("The %s view is disabled in pager view", view->name);
2990 } else if (!nomaximize) {
2991 /* Maximize the current view. */
2992 memset(display, 0, sizeof(display));
2994 display[current_view] = view;
2997 /* Resize the view when switching between split- and full-screen,
2998 * or when switching between two different full-screen views. */
2999 if (nviews != displayed_views() ||
3000 (nviews == 1 && base_view != display[0]))
3003 if (view->ops->open) {
3005 end_update(view, TRUE);
3006 if (!view->ops->open(view)) {
3007 report("Failed to load %s view", view->name);
3010 restore_view_position(view);
3012 } else if ((reload || strcmp(view->vid, view->id)) &&
3013 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
3014 report("Failed to load %s view", view->name);
3018 if (split && prev->lineno - prev->offset >= prev->height) {
3019 /* Take the title line into account. */
3020 int lines = prev->lineno - prev->offset - prev->height + 1;
3022 /* Scroll the view that was split if the current line is
3023 * outside the new limited view. */
3024 do_scroll_view(prev, lines);
3027 if (prev && view != prev) {
3029 /* "Blur" the previous view. */
3030 update_view_title(prev);
3033 view->parent = prev;
3036 if (view->pipe && view->lines == 0) {
3037 /* Clear the old view and let the incremental updating refill
3040 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
3042 } else if (view_is_displayed(view)) {
3049 open_external_viewer(const char *argv[], const char *dir)
3051 def_prog_mode(); /* save current tty modes */
3052 endwin(); /* restore original tty modes */
3053 run_io_fg(argv, dir);
3054 fprintf(stderr, "Press Enter to continue");
3057 redraw_display(TRUE);
3061 open_mergetool(const char *file)
3063 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
3065 open_external_viewer(mergetool_argv, opt_cdup);
3069 open_editor(bool from_root, const char *file)
3071 const char *editor_argv[] = { "vi", file, NULL };
3074 editor = getenv("GIT_EDITOR");
3075 if (!editor && *opt_editor)
3076 editor = opt_editor;
3078 editor = getenv("VISUAL");
3080 editor = getenv("EDITOR");
3084 editor_argv[0] = editor;
3085 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3089 open_run_request(enum request request)
3091 struct run_request *req = get_run_request(request);
3092 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3095 report("Unknown run request");
3099 if (format_argv(argv, req->argv, FORMAT_ALL))
3100 open_external_viewer(argv, NULL);
3105 * User request switch noodle
3109 view_driver(struct view *view, enum request request)
3113 if (request == REQ_NONE)
3116 if (request > REQ_NONE) {
3117 open_run_request(request);
3118 /* FIXME: When all views can refresh always do this. */
3119 if (view == VIEW(REQ_VIEW_STATUS) ||
3120 view == VIEW(REQ_VIEW_MAIN) ||
3121 view == VIEW(REQ_VIEW_LOG) ||
3122 view == VIEW(REQ_VIEW_STAGE))
3123 request = REQ_REFRESH;
3128 if (view && view->lines) {
3129 request = view->ops->request(view, request, &view->line[view->lineno]);
3130 if (request == REQ_NONE)
3137 case REQ_MOVE_PAGE_UP:
3138 case REQ_MOVE_PAGE_DOWN:
3139 case REQ_MOVE_FIRST_LINE:
3140 case REQ_MOVE_LAST_LINE:
3141 move_view(view, request);
3144 case REQ_SCROLL_LEFT:
3145 case REQ_SCROLL_RIGHT:
3146 case REQ_SCROLL_LINE_DOWN:
3147 case REQ_SCROLL_LINE_UP:
3148 case REQ_SCROLL_PAGE_DOWN:
3149 case REQ_SCROLL_PAGE_UP:
3150 scroll_view(view, request);
3153 case REQ_VIEW_BLAME:
3155 report("No file chosen, press %s to open tree view",
3156 get_key(REQ_VIEW_TREE));
3159 open_view(view, request, OPEN_DEFAULT);
3164 report("No file chosen, press %s to open tree view",
3165 get_key(REQ_VIEW_TREE));
3168 open_view(view, request, OPEN_DEFAULT);
3171 case REQ_VIEW_PAGER:
3172 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3173 report("No pager content, press %s to run command from prompt",
3174 get_key(REQ_PROMPT));
3177 open_view(view, request, OPEN_DEFAULT);
3180 case REQ_VIEW_STAGE:
3181 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3182 report("No stage content, press %s to open the status view and choose file",
3183 get_key(REQ_VIEW_STATUS));
3186 open_view(view, request, OPEN_DEFAULT);
3189 case REQ_VIEW_STATUS:
3190 if (opt_is_inside_work_tree == FALSE) {
3191 report("The status view requires a working tree");
3194 open_view(view, request, OPEN_DEFAULT);
3202 open_view(view, request, OPEN_DEFAULT);
3207 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3209 if ((view == VIEW(REQ_VIEW_DIFF) &&
3210 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3211 (view == VIEW(REQ_VIEW_DIFF) &&
3212 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3213 (view == VIEW(REQ_VIEW_STAGE) &&
3214 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3215 (view == VIEW(REQ_VIEW_BLOB) &&
3216 view->parent == VIEW(REQ_VIEW_TREE))) {
3219 view = view->parent;
3220 line = view->lineno;
3221 move_view(view, request);
3222 if (view_is_displayed(view))
3223 update_view_title(view);
3224 if (line != view->lineno)
3225 view->ops->request(view, REQ_ENTER,
3226 &view->line[view->lineno]);
3229 move_view(view, request);
3235 int nviews = displayed_views();
3236 int next_view = (current_view + 1) % nviews;
3238 if (next_view == current_view) {
3239 report("Only one view is displayed");
3243 current_view = next_view;
3244 /* Blur out the title of the previous view. */
3245 update_view_title(view);
3250 report("Refreshing is not yet supported for the %s view", view->name);
3254 if (displayed_views() == 2)
3255 maximize_view(view);
3258 case REQ_TOGGLE_LINENO:
3259 toggle_view_option(&opt_line_number, "line numbers");
3262 case REQ_TOGGLE_DATE:
3263 toggle_view_option(&opt_date, "date display");
3266 case REQ_TOGGLE_AUTHOR:
3267 toggle_view_option(&opt_author, "author display");
3270 case REQ_TOGGLE_REV_GRAPH:
3271 toggle_view_option(&opt_rev_graph, "revision graph display");
3274 case REQ_TOGGLE_REFS:
3275 toggle_view_option(&opt_show_refs, "reference display");
3279 case REQ_SEARCH_BACK:
3280 search_view(view, request);
3285 find_next(view, request);
3288 case REQ_STOP_LOADING:
3289 for (i = 0; i < ARRAY_SIZE(views); i++) {
3292 report("Stopped loading the %s view", view->name),
3293 end_update(view, TRUE);
3297 case REQ_SHOW_VERSION:
3298 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3301 case REQ_SCREEN_REDRAW:
3302 redraw_display(TRUE);
3306 report("Nothing to edit");
3310 report("Nothing to enter");
3313 case REQ_VIEW_CLOSE:
3314 /* XXX: Mark closed views by letting view->parent point to the
3315 * view itself. Parents to closed view should never be
3318 view->parent->parent != view->parent) {
3319 maximize_view(view->parent);
3320 view->parent = view;
3328 report("Unknown key, press 'h' for help");
3337 * View backend utilities
3340 DEFINE_ALLOCATOR(realloc_authors, const char *, 256)
3342 /* Small author cache to reduce memory consumption. It uses binary
3343 * search to lookup or find place to position new entries. No entries
3344 * are ever freed. */
3346 get_author(const char *name)
3348 static const char **authors;
3349 static size_t authors_size;
3350 int from = 0, to = authors_size - 1;
3352 while (from <= to) {
3353 size_t pos = (to + from) / 2;
3354 int cmp = strcmp(name, authors[pos]);
3357 return authors[pos];
3365 if (!realloc_authors(&authors, authors_size, 1))
3367 name = strdup(name);
3371 memmove(authors + from + 1, authors + from, (authors_size - from) * sizeof(*authors));
3372 authors[from] = name;
3379 parse_timezone(time_t *time, const char *zone)
3383 tz = ('0' - zone[1]) * 60 * 60 * 10;
3384 tz += ('0' - zone[2]) * 60 * 60;
3385 tz += ('0' - zone[3]) * 60;
3386 tz += ('0' - zone[4]);
3394 /* Parse author lines where the name may be empty:
3395 * author <email@address.tld> 1138474660 +0100
3398 parse_author_line(char *ident, const char **author, time_t *time)
3400 char *nameend = strchr(ident, '<');
3401 char *emailend = strchr(ident, '>');
3403 if (nameend && emailend)
3404 *nameend = *emailend = 0;
3405 ident = chomp_string(ident);
3408 ident = chomp_string(nameend + 1);
3413 *author = get_author(ident);
3415 /* Parse epoch and timezone */
3416 if (emailend && emailend[1] == ' ') {
3417 char *secs = emailend + 2;
3418 char *zone = strchr(secs, ' ');
3420 *time = (time_t) atol(secs);
3422 if (zone && strlen(zone) == STRING_SIZE(" +0700"))
3423 parse_timezone(time, zone + 1);
3427 static enum input_status
3428 select_commit_parent_handler(void *data, char *buf, int c)
3430 size_t parents = *(size_t *) data;
3437 parent = atoi(buf) * 10;
3440 if (parent > parents)
3446 select_commit_parent(const char *id, char rev[SIZEOF_REV], const char *path)
3448 char buf[SIZEOF_STR * 4];
3449 const char *revlist_argv[] = {
3450 "git", "rev-list", "-1", "--parents", id, "--", path, NULL
3454 if (!run_io_buf(revlist_argv, buf, sizeof(buf)) ||
3455 !*chomp_string(buf) ||
3456 (parents = (strlen(buf) / 40) - 1) < 0) {
3457 report("Failed to get parent information");
3460 } else if (parents == 0) {
3462 report("Path '%s' does not exist in the parent", path);
3464 report("The selected commit has no parents");
3469 char prompt[SIZEOF_STR];
3472 if (!string_format(prompt, "Which parent? [1..%d] ", parents))
3474 result = prompt_input(prompt, select_commit_parent_handler, &parents);
3477 parents = atoi(result);
3480 string_copy_rev(rev, &buf[41 * parents]);
3489 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3491 char text[SIZEOF_STR];
3493 if (opt_line_number && draw_lineno(view, lineno))
3496 string_expand(text, sizeof(text), line->data, opt_tab_size);
3497 draw_text(view, line->type, text, TRUE);
3502 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3504 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3505 char refbuf[SIZEOF_STR];
3508 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3509 ref = chomp_string(refbuf);
3514 /* This is the only fatal call, since it can "corrupt" the buffer. */
3515 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3522 add_pager_refs(struct view *view, struct line *line)
3524 char buf[SIZEOF_STR];
3525 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3527 size_t bufpos = 0, refpos = 0;
3528 const char *sep = "Refs: ";
3529 bool is_tag = FALSE;
3531 assert(line->type == LINE_COMMIT);
3533 refs = get_refs(commit_id);
3535 if (view == VIEW(REQ_VIEW_DIFF))
3536 goto try_add_describe_ref;
3541 struct ref *ref = refs[refpos];
3542 const char *fmt = ref->tag ? "%s[%s]" :
3543 ref->remote ? "%s<%s>" : "%s%s";
3545 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3550 } while (refs[refpos++]->next);
3552 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3553 try_add_describe_ref:
3554 /* Add <tag>-g<commit_id> "fake" reference. */
3555 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3562 add_line_text(view, buf, LINE_PP_REFS);
3566 pager_read(struct view *view, char *data)
3573 line = add_line_text(view, data, get_line_type(data));
3577 if (line->type == LINE_COMMIT &&
3578 (view == VIEW(REQ_VIEW_DIFF) ||
3579 view == VIEW(REQ_VIEW_LOG)))
3580 add_pager_refs(view, line);
3586 pager_request(struct view *view, enum request request, struct line *line)
3590 if (request != REQ_ENTER)
3593 if (line->type == LINE_COMMIT &&
3594 (view == VIEW(REQ_VIEW_LOG) ||
3595 view == VIEW(REQ_VIEW_PAGER))) {
3596 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3600 /* Always scroll the view even if it was split. That way
3601 * you can use Enter to scroll through the log view and
3602 * split open each commit diff. */
3603 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3605 /* FIXME: A minor workaround. Scrolling the view will call report("")
3606 * but if we are scrolling a non-current view this won't properly
3607 * update the view title. */
3609 update_view_title(view);
3615 pager_grep(struct view *view, struct line *line)
3617 const char *text[] = { line->data, NULL };
3619 return grep_text(view, text);
3623 pager_select(struct view *view, struct line *line)
3625 if (line->type == LINE_COMMIT) {
3626 char *text = (char *)line->data + STRING_SIZE("commit ");
3628 if (view != VIEW(REQ_VIEW_PAGER))
3629 string_copy_rev(view->ref, text);
3630 string_copy_rev(ref_commit, text);
3634 static struct view_ops pager_ops = {
3645 static const char *log_argv[SIZEOF_ARG] = {
3646 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3650 log_request(struct view *view, enum request request, struct line *line)
3655 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3658 return pager_request(view, request, line);
3662 static struct view_ops log_ops = {
3673 static const char *diff_argv[SIZEOF_ARG] = {
3674 "git", "show", "--pretty=fuller", "--no-color", "--root",
3675 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3678 static struct view_ops diff_ops = {
3694 help_open(struct view *view)
3696 char buf[SIZEOF_STR];
3700 if (view->lines > 0)
3703 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3705 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3708 if (req_info[i].request == REQ_NONE)
3711 if (!req_info[i].request) {
3712 add_line_text(view, "", LINE_DEFAULT);
3713 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3717 key = get_key(req_info[i].request);
3719 key = "(no key defined)";
3721 for (bufpos = 0; bufpos <= req_info[i].namelen; bufpos++) {
3722 buf[bufpos] = tolower(req_info[i].name[bufpos]);
3723 if (buf[bufpos] == '_')
3727 add_line_format(view, LINE_DEFAULT, " %-25s %-20s %s",
3728 key, buf, req_info[i].help);
3732 add_line_text(view, "", LINE_DEFAULT);
3733 add_line_text(view, "External commands:", LINE_DEFAULT);
3736 for (i = 0; i < run_requests; i++) {
3737 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3744 key = get_key_name(req->key);
3746 key = "(no key defined)";
3748 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3749 if (!string_format_from(buf, &bufpos, "%s%s",
3750 argc ? " " : "", req->argv[argc]))
3753 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3754 keymap_table[req->keymap].name, key, buf);
3760 static struct view_ops help_ops = {
3776 struct tree_stack_entry {
3777 struct tree_stack_entry *prev; /* Entry below this in the stack */
3778 unsigned long lineno; /* Line number to restore */
3779 char *name; /* Position of name in opt_path */
3782 /* The top of the path stack. */
3783 static struct tree_stack_entry *tree_stack = NULL;
3784 unsigned long tree_lineno = 0;
3787 pop_tree_stack_entry(void)
3789 struct tree_stack_entry *entry = tree_stack;
3791 tree_lineno = entry->lineno;
3793 tree_stack = entry->prev;
3798 push_tree_stack_entry(const char *name, unsigned long lineno)
3800 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3801 size_t pathlen = strlen(opt_path);
3806 entry->prev = tree_stack;
3807 entry->name = opt_path + pathlen;
3810 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3811 pop_tree_stack_entry();
3815 /* Move the current line to the first tree entry. */
3817 entry->lineno = lineno;
3820 /* Parse output from git-ls-tree(1):
3822 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3825 #define SIZEOF_TREE_ATTR \
3826 STRING_SIZE("100644 blob f931e1d229c3e185caad4449bf5b66ed72462657\t")
3828 #define SIZEOF_TREE_MODE \
3829 STRING_SIZE("100644 ")
3831 #define TREE_ID_OFFSET \
3832 STRING_SIZE("100644 blob ")
3835 char id[SIZEOF_REV];
3837 time_t time; /* Date from the author ident. */
3838 const char *author; /* Author of the commit. */
3843 tree_path(struct line *line)
3845 return ((struct tree_entry *) line->data)->name;
3850 tree_compare_entry(struct line *line1, struct line *line2)
3852 if (line1->type != line2->type)
3853 return line1->type == LINE_TREE_DIR ? -1 : 1;
3854 return strcmp(tree_path(line1), tree_path(line2));
3857 static struct line *
3858 tree_entry(struct view *view, enum line_type type, const char *path,
3859 const char *mode, const char *id)
3861 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3862 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3864 if (!entry || !line) {
3869 strncpy(entry->name, path, strlen(path));
3871 entry->mode = strtoul(mode, NULL, 8);
3873 string_copy_rev(entry->id, id);
3879 tree_read_date(struct view *view, char *text, bool *read_date)
3881 static const char *author_name;
3882 static time_t author_time;
3884 if (!text && *read_date) {
3889 char *path = *opt_path ? opt_path : ".";
3890 /* Find next entry to process */
3891 const char *log_file[] = {
3892 "git", "log", "--no-color", "--pretty=raw",
3893 "--cc", "--raw", view->id, "--", path, NULL
3898 tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL);
3899 report("Tree is empty");
3903 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3904 report("Failed to load tree data");
3908 done_io(view->pipe);
3913 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3914 parse_author_line(text + STRING_SIZE("author "),
3915 &author_name, &author_time);
3917 } else if (*text == ':') {
3919 size_t annotated = 1;
3922 pos = strchr(text, '\t');
3926 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3927 text += strlen(opt_prefix);
3928 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3929 text += strlen(opt_path);
3930 pos = strchr(text, '/');
3934 for (i = 1; i < view->lines; i++) {
3935 struct line *line = &view->line[i];
3936 struct tree_entry *entry = line->data;
3938 annotated += !!entry->author;
3939 if (entry->author || strcmp(entry->name, text))
3942 entry->author = author_name;
3943 entry->time = author_time;
3948 if (annotated == view->lines)
3949 kill_io(view->pipe);
3955 tree_read(struct view *view, char *text)
3957 static bool read_date = FALSE;
3958 struct tree_entry *data;
3959 struct line *entry, *line;
3960 enum line_type type;
3961 size_t textlen = text ? strlen(text) : 0;
3962 char *path = text + SIZEOF_TREE_ATTR;
3964 if (read_date || !text)
3965 return tree_read_date(view, text, &read_date);
3967 if (textlen <= SIZEOF_TREE_ATTR)
3969 if (view->lines == 0 &&
3970 !tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL))
3973 /* Strip the path part ... */
3975 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3976 size_t striplen = strlen(opt_path);
3978 if (pathlen > striplen)
3979 memmove(path, path + striplen,
3980 pathlen - striplen + 1);
3982 /* Insert "link" to parent directory. */
3983 if (view->lines == 1 &&
3984 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3988 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
3989 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3994 /* Skip "Directory ..." and ".." line. */
3995 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3996 if (tree_compare_entry(line, entry) <= 0)
3999 memmove(line + 1, line, (entry - line) * sizeof(*entry));
4003 for (; line <= entry; line++)
4004 line->dirty = line->cleareol = 1;
4008 if (tree_lineno > view->lineno) {
4009 view->lineno = tree_lineno;
4017 tree_draw(struct view *view, struct line *line, unsigned int lineno)
4019 struct tree_entry *entry = line->data;
4021 if (line->type == LINE_TREE_HEAD) {
4022 if (draw_text(view, line->type, "Directory path /", TRUE))
4025 if (draw_mode(view, entry->mode))
4028 if (opt_author && draw_author(view, entry->author))
4031 if (opt_date && draw_date(view, entry->author ? &entry->time : NULL))
4034 if (draw_text(view, line->type, entry->name, TRUE))
4042 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
4043 int fd = mkstemp(file);
4046 report("Failed to create temporary file");
4047 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
4048 report("Failed to save blob data to file");
4050 open_editor(FALSE, file);
4056 tree_request(struct view *view, enum request request, struct line *line)
4058 enum open_flags flags;
4061 case REQ_VIEW_BLAME:
4062 if (line->type != LINE_TREE_FILE) {
4063 report("Blame only supported for files");
4067 string_copy(opt_ref, view->vid);
4071 if (line->type != LINE_TREE_FILE) {
4072 report("Edit only supported for files");
4073 } else if (!is_head_commit(view->vid)) {
4076 open_editor(TRUE, opt_file);
4082 /* quit view if at top of tree */
4083 return REQ_VIEW_CLOSE;
4086 line = &view->line[1];
4096 /* Cleanup the stack if the tree view is at a different tree. */
4097 while (!*opt_path && tree_stack)
4098 pop_tree_stack_entry();
4100 switch (line->type) {
4102 /* Depending on whether it is a subdirectory or parent link
4103 * mangle the path buffer. */
4104 if (line == &view->line[1] && *opt_path) {
4105 pop_tree_stack_entry();
4108 const char *basename = tree_path(line);
4110 push_tree_stack_entry(basename, view->lineno);
4113 /* Trees and subtrees share the same ID, so they are not not
4114 * unique like blobs. */
4115 flags = OPEN_RELOAD;
4116 request = REQ_VIEW_TREE;
4119 case LINE_TREE_FILE:
4120 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4121 request = REQ_VIEW_BLOB;
4128 open_view(view, request, flags);
4129 if (request == REQ_VIEW_TREE)
4130 view->lineno = tree_lineno;
4136 tree_grep(struct view *view, struct line *line)
4138 struct tree_entry *entry = line->data;
4139 const char *text[] = {
4141 opt_author ? entry->author : "",
4142 opt_date ? mkdate(&entry->time) : "",
4146 return grep_text(view, text);
4150 tree_select(struct view *view, struct line *line)
4152 struct tree_entry *entry = line->data;
4154 if (line->type == LINE_TREE_FILE) {
4155 string_copy_rev(ref_blob, entry->id);
4156 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4158 } else if (line->type != LINE_TREE_DIR) {
4162 string_copy_rev(view->ref, entry->id);
4165 static const char *tree_argv[SIZEOF_ARG] = {
4166 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4169 static struct view_ops tree_ops = {
4181 blob_read(struct view *view, char *line)
4185 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4189 blob_request(struct view *view, enum request request, struct line *line)
4196 return pager_request(view, request, line);
4200 static const char *blob_argv[SIZEOF_ARG] = {
4201 "git", "cat-file", "blob", "%(blob)", NULL
4204 static struct view_ops blob_ops = {
4218 * Loading the blame view is a two phase job:
4220 * 1. File content is read either using opt_file from the
4221 * filesystem or using git-cat-file.
4222 * 2. Then blame information is incrementally added by
4223 * reading output from git-blame.
4226 static const char *blame_head_argv[] = {
4227 "git", "blame", "--incremental", "--", "%(file)", NULL
4230 static const char *blame_ref_argv[] = {
4231 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4234 static const char *blame_cat_file_argv[] = {
4235 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4238 struct blame_commit {
4239 char id[SIZEOF_REV]; /* SHA1 ID. */
4240 char title[128]; /* First line of the commit message. */
4241 const char *author; /* Author of the commit. */
4242 time_t time; /* Date from the author ident. */
4243 char filename[128]; /* Name of file. */
4244 bool has_previous; /* Was a "previous" line detected. */
4248 struct blame_commit *commit;
4249 unsigned long lineno;
4254 blame_open(struct view *view)
4256 if (*opt_ref || !io_open(&view->io, opt_file)) {
4257 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4261 setup_update(view, opt_file);
4262 string_format(view->ref, "%s ...", opt_file);
4267 static struct blame_commit *
4268 get_blame_commit(struct view *view, const char *id)
4272 for (i = 0; i < view->lines; i++) {
4273 struct blame *blame = view->line[i].data;
4278 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4279 return blame->commit;
4283 struct blame_commit *commit = calloc(1, sizeof(*commit));
4286 string_ncopy(commit->id, id, SIZEOF_REV);
4292 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4294 const char *pos = *posref;
4297 pos = strchr(pos + 1, ' ');
4298 if (!pos || !isdigit(pos[1]))
4300 *number = atoi(pos + 1);
4301 if (*number < min || *number > max)
4308 static struct blame_commit *
4309 parse_blame_commit(struct view *view, const char *text, int *blamed)
4311 struct blame_commit *commit;
4312 struct blame *blame;
4313 const char *pos = text + SIZEOF_REV - 2;
4314 size_t orig_lineno = 0;
4318 if (strlen(text) <= SIZEOF_REV || pos[1] != ' ')
4321 if (!parse_number(&pos, &orig_lineno, 1, 9999999) ||
4322 !parse_number(&pos, &lineno, 1, view->lines) ||
4323 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4326 commit = get_blame_commit(view, text);
4332 struct line *line = &view->line[lineno + group - 1];
4335 blame->commit = commit;
4336 blame->lineno = orig_lineno + group - 1;
4344 blame_read_file(struct view *view, const char *line, bool *read_file)
4347 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4350 if (view->lines == 0 && !view->parent)
4351 die("No blame exist for %s", view->vid);
4353 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4354 report("Failed to load blame data");
4358 done_io(view->pipe);
4364 size_t linelen = strlen(line);
4365 struct blame *blame = malloc(sizeof(*blame) + linelen);
4370 blame->commit = NULL;
4371 strncpy(blame->text, line, linelen);
4372 blame->text[linelen] = 0;
4373 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4378 match_blame_header(const char *name, char **line)
4380 size_t namelen = strlen(name);
4381 bool matched = !strncmp(name, *line, namelen);
4390 blame_read(struct view *view, char *line)
4392 static struct blame_commit *commit = NULL;
4393 static int blamed = 0;
4394 static bool read_file = TRUE;
4397 return blame_read_file(view, line, &read_file);
4404 string_format(view->ref, "%s", view->vid);
4405 if (view_is_displayed(view)) {
4406 update_view_title(view);
4407 redraw_view_from(view, 0);
4413 commit = parse_blame_commit(view, line, &blamed);
4414 string_format(view->ref, "%s %2d%%", view->vid,
4415 view->lines ? blamed * 100 / view->lines : 0);
4417 } else if (match_blame_header("author ", &line)) {
4418 commit->author = get_author(line);
4420 } else if (match_blame_header("author-time ", &line)) {
4421 commit->time = (time_t) atol(line);
4423 } else if (match_blame_header("author-tz ", &line)) {
4424 parse_timezone(&commit->time, line);
4426 } else if (match_blame_header("summary ", &line)) {
4427 string_ncopy(commit->title, line, strlen(line));
4429 } else if (match_blame_header("previous ", &line)) {
4430 commit->has_previous = TRUE;
4432 } else if (match_blame_header("filename ", &line)) {
4433 string_ncopy(commit->filename, line, strlen(line));
4441 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4443 struct blame *blame = line->data;
4444 time_t *time = NULL;
4445 const char *id = NULL, *author = NULL;
4446 char text[SIZEOF_STR];
4448 if (blame->commit && *blame->commit->filename) {
4449 id = blame->commit->id;
4450 author = blame->commit->author;
4451 time = &blame->commit->time;
4454 if (opt_date && draw_date(view, time))
4457 if (opt_author && draw_author(view, author))
4460 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4463 if (draw_lineno(view, lineno))
4466 string_expand(text, sizeof(text), blame->text, opt_tab_size);
4467 draw_text(view, LINE_DEFAULT, text, TRUE);
4472 check_blame_commit(struct blame *blame, bool check_null_id)
4475 report("Commit data not loaded yet");
4476 else if (check_null_id && !strcmp(blame->commit->id, NULL_ID))
4477 report("No commit exist for the selected line");
4484 setup_blame_parent_line(struct view *view, struct blame *blame)
4486 const char *diff_tree_argv[] = {
4487 "git", "diff-tree", "-U0", blame->commit->id,
4488 "--", blame->commit->filename, NULL
4491 int parent_lineno = -1;
4492 int blamed_lineno = -1;
4495 if (!run_io(&io, diff_tree_argv, NULL, IO_RD))
4498 while ((line = io_get(&io, '\n', TRUE))) {
4500 char *pos = strchr(line, '+');
4502 parent_lineno = atoi(line + 4);
4504 blamed_lineno = atoi(pos + 1);
4506 } else if (*line == '+' && parent_lineno != -1) {
4507 if (blame->lineno == blamed_lineno - 1 &&
4508 !strcmp(blame->text, line + 1)) {
4509 view->lineno = parent_lineno ? parent_lineno - 1 : 0;
4520 blame_request(struct view *view, enum request request, struct line *line)
4522 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4523 struct blame *blame = line->data;
4526 case REQ_VIEW_BLAME:
4527 if (check_blame_commit(blame, TRUE)) {
4528 string_copy(opt_ref, blame->commit->id);
4529 string_copy(opt_file, blame->commit->filename);
4531 view->lineno = blame->lineno;
4532 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4537 if (check_blame_commit(blame, TRUE) &&
4538 select_commit_parent(blame->commit->id, opt_ref,
4539 blame->commit->filename)) {
4540 string_copy(opt_file, blame->commit->filename);
4541 setup_blame_parent_line(view, blame);
4542 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4547 if (!check_blame_commit(blame, FALSE))
4550 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4551 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4554 if (!strcmp(blame->commit->id, NULL_ID)) {
4555 struct view *diff = VIEW(REQ_VIEW_DIFF);
4556 const char *diff_index_argv[] = {
4557 "git", "diff-index", "--root", "--patch-with-stat",
4558 "-C", "-M", "HEAD", "--", view->vid, NULL
4561 if (!blame->commit->has_previous) {
4562 diff_index_argv[1] = "diff";
4563 diff_index_argv[2] = "--no-color";
4564 diff_index_argv[6] = "--";
4565 diff_index_argv[7] = "/dev/null";
4568 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4569 report("Failed to allocate diff command");
4572 flags |= OPEN_PREPARED;
4575 open_view(view, REQ_VIEW_DIFF, flags);
4576 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4577 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4588 blame_grep(struct view *view, struct line *line)
4590 struct blame *blame = line->data;
4591 struct blame_commit *commit = blame->commit;
4592 const char *text[] = {
4594 commit ? commit->title : "",
4595 commit ? commit->id : "",
4596 commit && opt_author ? commit->author : "",
4597 commit && opt_date ? mkdate(&commit->time) : "",
4600 return grep_text(view, text);
4604 blame_select(struct view *view, struct line *line)
4606 struct blame *blame = line->data;
4607 struct blame_commit *commit = blame->commit;
4612 if (!strcmp(commit->id, NULL_ID))
4613 string_ncopy(ref_commit, "HEAD", 4);
4615 string_copy_rev(ref_commit, commit->id);
4618 static struct view_ops blame_ops = {
4637 char rev[SIZEOF_REV];
4638 char name[SIZEOF_STR];
4642 char rev[SIZEOF_REV];
4643 char name[SIZEOF_STR];
4647 static char status_onbranch[SIZEOF_STR];
4648 static struct status stage_status;
4649 static enum line_type stage_line_type;
4650 static size_t stage_chunks;
4651 static int *stage_chunk;
4653 DEFINE_ALLOCATOR(realloc_ints, int, 32)
4655 /* This should work even for the "On branch" line. */
4657 status_has_none(struct view *view, struct line *line)
4659 return line < view->line + view->lines && !line[1].data;
4662 /* Get fields from the diff line:
4663 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4666 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4668 const char *old_mode = buf + 1;
4669 const char *new_mode = buf + 8;
4670 const char *old_rev = buf + 15;
4671 const char *new_rev = buf + 56;
4672 const char *status = buf + 97;
4675 old_mode[-1] != ':' ||
4676 new_mode[-1] != ' ' ||
4677 old_rev[-1] != ' ' ||
4678 new_rev[-1] != ' ' ||
4682 file->status = *status;
4684 string_copy_rev(file->old.rev, old_rev);
4685 string_copy_rev(file->new.rev, new_rev);
4687 file->old.mode = strtoul(old_mode, NULL, 8);
4688 file->new.mode = strtoul(new_mode, NULL, 8);
4690 file->old.name[0] = file->new.name[0] = 0;
4696 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4698 struct status *unmerged = NULL;
4702 if (!run_io(&io, argv, NULL, IO_RD))
4705 add_line_data(view, NULL, type);
4707 while ((buf = io_get(&io, 0, TRUE))) {
4708 struct status *file = unmerged;
4711 file = calloc(1, sizeof(*file));
4712 if (!file || !add_line_data(view, file, type))
4716 /* Parse diff info part. */
4718 file->status = status;
4720 string_copy(file->old.rev, NULL_ID);
4722 } else if (!file->status || file == unmerged) {
4723 if (!status_get_diff(file, buf, strlen(buf)))
4726 buf = io_get(&io, 0, TRUE);
4730 /* Collapse all modified entries that follow an
4731 * associated unmerged entry. */
4732 if (unmerged == file) {
4733 unmerged->status = 'U';
4735 } else if (file->status == 'U') {
4740 /* Grab the old name for rename/copy. */
4741 if (!*file->old.name &&
4742 (file->status == 'R' || file->status == 'C')) {
4743 string_ncopy(file->old.name, buf, strlen(buf));
4745 buf = io_get(&io, 0, TRUE);
4750 /* git-ls-files just delivers a NUL separated list of
4751 * file names similar to the second half of the
4752 * git-diff-* output. */
4753 string_ncopy(file->new.name, buf, strlen(buf));
4754 if (!*file->old.name)
4755 string_copy(file->old.name, file->new.name);
4759 if (io_error(&io)) {
4765 if (!view->line[view->lines - 1].data)
4766 add_line_data(view, NULL, LINE_STAT_NONE);
4772 /* Don't show unmerged entries in the staged section. */
4773 static const char *status_diff_index_argv[] = {
4774 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4775 "--cached", "-M", "HEAD", NULL
4778 static const char *status_diff_files_argv[] = {
4779 "git", "diff-files", "-z", NULL
4782 static const char *status_list_other_argv[] = {
4783 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4786 static const char *status_list_no_head_argv[] = {
4787 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4790 static const char *update_index_argv[] = {
4791 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4794 /* Restore the previous line number to stay in the context or select a
4795 * line with something that can be updated. */
4797 status_restore(struct view *view)
4799 if (view->p_lineno >= view->lines)
4800 view->p_lineno = view->lines - 1;
4801 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4803 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4806 /* If the above fails, always skip the "On branch" line. */
4807 if (view->p_lineno < view->lines)
4808 view->lineno = view->p_lineno;
4812 if (view->lineno < view->offset)
4813 view->offset = view->lineno;
4814 else if (view->offset + view->height <= view->lineno)
4815 view->offset = view->lineno - view->height + 1;
4817 view->p_restore = FALSE;
4821 status_update_onbranch(void)
4823 static const char *paths[][2] = {
4824 { "rebase-apply/rebasing", "Rebasing" },
4825 { "rebase-apply/applying", "Applying mailbox" },
4826 { "rebase-apply/", "Rebasing mailbox" },
4827 { "rebase-merge/interactive", "Interactive rebase" },
4828 { "rebase-merge/", "Rebase merge" },
4829 { "MERGE_HEAD", "Merging" },
4830 { "BISECT_LOG", "Bisecting" },
4831 { "HEAD", "On branch" },
4833 char buf[SIZEOF_STR];
4837 if (is_initial_commit()) {
4838 string_copy(status_onbranch, "Initial commit");
4842 for (i = 0; i < ARRAY_SIZE(paths); i++) {
4843 char *head = opt_head;
4845 if (!string_format(buf, "%s/%s", opt_git_dir, paths[i][0]) ||
4846 lstat(buf, &stat) < 0)
4852 if (string_format(buf, "%s/rebase-merge/head-name", opt_git_dir) &&
4853 io_open(&io, buf) &&
4854 io_read_buf(&io, buf, sizeof(buf))) {
4855 head = chomp_string(buf);
4856 if (!prefixcmp(head, "refs/heads/"))
4857 head += STRING_SIZE("refs/heads/");
4861 if (!string_format(status_onbranch, "%s %s", paths[i][1], head))
4862 string_copy(status_onbranch, opt_head);
4866 string_copy(status_onbranch, "Not currently on any branch");
4869 /* First parse staged info using git-diff-index(1), then parse unstaged
4870 * info using git-diff-files(1), and finally untracked files using
4871 * git-ls-files(1). */
4873 status_open(struct view *view)
4877 add_line_data(view, NULL, LINE_STAT_HEAD);
4878 status_update_onbranch();
4880 run_io_bg(update_index_argv);
4882 if (is_initial_commit()) {
4883 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4885 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4889 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4890 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4893 /* Restore the exact position or use the specialized restore
4895 if (!view->p_restore)
4896 status_restore(view);
4901 status_draw(struct view *view, struct line *line, unsigned int lineno)
4903 struct status *status = line->data;
4904 enum line_type type;
4908 switch (line->type) {
4909 case LINE_STAT_STAGED:
4910 type = LINE_STAT_SECTION;
4911 text = "Changes to be committed:";
4914 case LINE_STAT_UNSTAGED:
4915 type = LINE_STAT_SECTION;
4916 text = "Changed but not updated:";
4919 case LINE_STAT_UNTRACKED:
4920 type = LINE_STAT_SECTION;
4921 text = "Untracked files:";
4924 case LINE_STAT_NONE:
4925 type = LINE_DEFAULT;
4926 text = " (no files)";
4929 case LINE_STAT_HEAD:
4930 type = LINE_STAT_HEAD;
4931 text = status_onbranch;
4938 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4940 buf[0] = status->status;
4941 if (draw_text(view, line->type, buf, TRUE))
4943 type = LINE_DEFAULT;
4944 text = status->new.name;
4947 draw_text(view, type, text, TRUE);
4952 status_load_error(struct view *view, struct view *stage, const char *path)
4954 if (displayed_views() == 2 || display[current_view] != view)
4955 maximize_view(view);
4956 report("Failed to load '%s': %s", path, io_strerror(&stage->io));
4961 status_enter(struct view *view, struct line *line)
4963 struct status *status = line->data;
4964 const char *oldpath = status ? status->old.name : NULL;
4965 /* Diffs for unmerged entries are empty when passing the new
4966 * path, so leave it empty. */
4967 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4969 enum open_flags split;
4970 struct view *stage = VIEW(REQ_VIEW_STAGE);
4972 if (line->type == LINE_STAT_NONE ||
4973 (!status && line[1].type == LINE_STAT_NONE)) {
4974 report("No file to diff");
4978 switch (line->type) {
4979 case LINE_STAT_STAGED:
4980 if (is_initial_commit()) {
4981 const char *no_head_diff_argv[] = {
4982 "git", "diff", "--no-color", "--patch-with-stat",
4983 "--", "/dev/null", newpath, NULL
4986 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4987 return status_load_error(view, stage, newpath);
4989 const char *index_show_argv[] = {
4990 "git", "diff-index", "--root", "--patch-with-stat",
4991 "-C", "-M", "--cached", "HEAD", "--",
4992 oldpath, newpath, NULL
4995 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4996 return status_load_error(view, stage, newpath);
5000 info = "Staged changes to %s";
5002 info = "Staged changes";
5005 case LINE_STAT_UNSTAGED:
5007 const char *files_show_argv[] = {
5008 "git", "diff-files", "--root", "--patch-with-stat",
5009 "-C", "-M", "--", oldpath, newpath, NULL
5012 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
5013 return status_load_error(view, stage, newpath);
5015 info = "Unstaged changes to %s";
5017 info = "Unstaged changes";
5020 case LINE_STAT_UNTRACKED:
5022 report("No file to show");
5026 if (!suffixcmp(status->new.name, -1, "/")) {
5027 report("Cannot display a directory");
5031 if (!prepare_update_file(stage, newpath))
5032 return status_load_error(view, stage, newpath);
5033 info = "Untracked file %s";
5036 case LINE_STAT_HEAD:
5040 die("line type %d not handled in switch", line->type);
5043 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
5044 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
5045 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
5047 stage_status = *status;
5049 memset(&stage_status, 0, sizeof(stage_status));
5052 stage_line_type = line->type;
5054 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
5061 status_exists(struct status *status, enum line_type type)
5063 struct view *view = VIEW(REQ_VIEW_STATUS);
5064 unsigned long lineno;
5066 for (lineno = 0; lineno < view->lines; lineno++) {
5067 struct line *line = &view->line[lineno];
5068 struct status *pos = line->data;
5070 if (line->type != type)
5072 if (!pos && (!status || !status->status) && line[1].data) {
5073 select_view_line(view, lineno);
5076 if (pos && !strcmp(status->new.name, pos->new.name)) {
5077 select_view_line(view, lineno);
5087 status_update_prepare(struct io *io, enum line_type type)
5089 const char *staged_argv[] = {
5090 "git", "update-index", "-z", "--index-info", NULL
5092 const char *others_argv[] = {
5093 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
5097 case LINE_STAT_STAGED:
5098 return run_io(io, staged_argv, opt_cdup, IO_WR);
5100 case LINE_STAT_UNSTAGED:
5101 return run_io(io, others_argv, opt_cdup, IO_WR);
5103 case LINE_STAT_UNTRACKED:
5104 return run_io(io, others_argv, NULL, IO_WR);
5107 die("line type %d not handled in switch", type);
5113 status_update_write(struct io *io, struct status *status, enum line_type type)
5115 char buf[SIZEOF_STR];
5119 case LINE_STAT_STAGED:
5120 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
5123 status->old.name, 0))
5127 case LINE_STAT_UNSTAGED:
5128 case LINE_STAT_UNTRACKED:
5129 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
5134 die("line type %d not handled in switch", type);
5137 return io_write(io, buf, bufsize);
5141 status_update_file(struct status *status, enum line_type type)
5146 if (!status_update_prepare(&io, type))
5149 result = status_update_write(&io, status, type);
5150 return done_io(&io) && result;
5154 status_update_files(struct view *view, struct line *line)
5156 char buf[sizeof(view->ref)];
5159 struct line *pos = view->line + view->lines;
5162 int cursor_y, cursor_x;
5164 if (!status_update_prepare(&io, line->type))
5167 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5170 string_copy(buf, view->ref);
5171 getsyx(cursor_y, cursor_x);
5172 for (file = 0, done = 5; result && file < files; line++, file++) {
5173 int almost_done = file * 100 / files;
5175 if (almost_done > done) {
5177 string_format(view->ref, "updating file %u of %u (%d%% done)",
5179 update_view_title(view);
5180 setsyx(cursor_y, cursor_x);
5183 result = status_update_write(&io, line->data, line->type);
5185 string_copy(view->ref, buf);
5187 return done_io(&io) && result;
5191 status_update(struct view *view)
5193 struct line *line = &view->line[view->lineno];
5195 assert(view->lines);
5198 /* This should work even for the "On branch" line. */
5199 if (line < view->line + view->lines && !line[1].data) {
5200 report("Nothing to update");
5204 if (!status_update_files(view, line + 1)) {
5205 report("Failed to update file status");
5209 } else if (!status_update_file(line->data, line->type)) {
5210 report("Failed to update file status");
5218 status_revert(struct status *status, enum line_type type, bool has_none)
5220 if (!status || type != LINE_STAT_UNSTAGED) {
5221 if (type == LINE_STAT_STAGED) {
5222 report("Cannot revert changes to staged files");
5223 } else if (type == LINE_STAT_UNTRACKED) {
5224 report("Cannot revert changes to untracked files");
5225 } else if (has_none) {
5226 report("Nothing to revert");
5228 report("Cannot revert changes to multiple files");
5233 char mode[10] = "100644";
5234 const char *reset_argv[] = {
5235 "git", "update-index", "--cacheinfo", mode,
5236 status->old.rev, status->old.name, NULL
5238 const char *checkout_argv[] = {
5239 "git", "checkout", "--", status->old.name, NULL
5242 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5244 string_format(mode, "%o", status->old.mode);
5245 return (status->status != 'U' || run_io_fg(reset_argv, opt_cdup)) &&
5246 run_io_fg(checkout_argv, opt_cdup);
5251 status_request(struct view *view, enum request request, struct line *line)
5253 struct status *status = line->data;
5256 case REQ_STATUS_UPDATE:
5257 if (!status_update(view))
5261 case REQ_STATUS_REVERT:
5262 if (!status_revert(status, line->type, status_has_none(view, line)))
5266 case REQ_STATUS_MERGE:
5267 if (!status || status->status != 'U') {
5268 report("Merging only possible for files with unmerged status ('U').");
5271 open_mergetool(status->new.name);
5277 if (status->status == 'D') {
5278 report("File has been deleted.");
5282 open_editor(status->status != '?', status->new.name);
5285 case REQ_VIEW_BLAME:
5287 string_copy(opt_file, status->new.name);
5293 /* After returning the status view has been split to
5294 * show the stage view. No further reloading is
5296 return status_enter(view, line);
5299 /* Simply reload the view. */
5306 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5312 status_select(struct view *view, struct line *line)
5314 struct status *status = line->data;
5315 char file[SIZEOF_STR] = "all files";
5319 if (status && !string_format(file, "'%s'", status->new.name))
5322 if (!status && line[1].type == LINE_STAT_NONE)
5325 switch (line->type) {
5326 case LINE_STAT_STAGED:
5327 text = "Press %s to unstage %s for commit";
5330 case LINE_STAT_UNSTAGED:
5331 text = "Press %s to stage %s for commit";
5334 case LINE_STAT_UNTRACKED:
5335 text = "Press %s to stage %s for addition";
5338 case LINE_STAT_HEAD:
5339 case LINE_STAT_NONE:
5340 text = "Nothing to update";
5344 die("line type %d not handled in switch", line->type);
5347 if (status && status->status == 'U') {
5348 text = "Press %s to resolve conflict in %s";
5349 key = get_key(REQ_STATUS_MERGE);
5352 key = get_key(REQ_STATUS_UPDATE);
5355 string_format(view->ref, text, key, file);
5359 status_grep(struct view *view, struct line *line)
5361 struct status *status = line->data;
5364 const char buf[2] = { status->status, 0 };
5365 const char *text[] = { status->new.name, buf, NULL };
5367 return grep_text(view, text);
5373 static struct view_ops status_ops = {
5386 stage_diff_write(struct io *io, struct line *line, struct line *end)
5388 while (line < end) {
5389 if (!io_write(io, line->data, strlen(line->data)) ||
5390 !io_write(io, "\n", 1))
5393 if (line->type == LINE_DIFF_CHUNK ||
5394 line->type == LINE_DIFF_HEADER)
5401 static struct line *
5402 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5404 for (; view->line < line; line--)
5405 if (line->type == type)
5412 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5414 const char *apply_argv[SIZEOF_ARG] = {
5415 "git", "apply", "--whitespace=nowarn", NULL
5417 struct line *diff_hdr;
5421 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5426 apply_argv[argc++] = "--cached";
5427 if (revert || stage_line_type == LINE_STAT_STAGED)
5428 apply_argv[argc++] = "-R";
5429 apply_argv[argc++] = "-";
5430 apply_argv[argc++] = NULL;
5431 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5434 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5435 !stage_diff_write(&io, chunk, view->line + view->lines))
5439 run_io_bg(update_index_argv);
5441 return chunk ? TRUE : FALSE;
5445 stage_update(struct view *view, struct line *line)
5447 struct line *chunk = NULL;
5449 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5450 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5453 if (!stage_apply_chunk(view, chunk, FALSE)) {
5454 report("Failed to apply chunk");
5458 } else if (!stage_status.status) {
5459 view = VIEW(REQ_VIEW_STATUS);
5461 for (line = view->line; line < view->line + view->lines; line++)
5462 if (line->type == stage_line_type)
5465 if (!status_update_files(view, line + 1)) {
5466 report("Failed to update files");
5470 } else if (!status_update_file(&stage_status, stage_line_type)) {
5471 report("Failed to update file");
5479 stage_revert(struct view *view, struct line *line)
5481 struct line *chunk = NULL;
5483 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5484 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5487 if (!prompt_yesno("Are you sure you want to revert changes?"))
5490 if (!stage_apply_chunk(view, chunk, TRUE)) {
5491 report("Failed to revert chunk");
5497 return status_revert(stage_status.status ? &stage_status : NULL,
5498 stage_line_type, FALSE);
5504 stage_next(struct view *view, struct line *line)
5508 if (!stage_chunks) {
5509 for (line = view->line; line < view->line + view->lines; line++) {
5510 if (line->type != LINE_DIFF_CHUNK)
5513 if (!realloc_ints(&stage_chunk, stage_chunks, 1)) {
5514 report("Allocation failure");
5518 stage_chunk[stage_chunks++] = line - view->line;
5522 for (i = 0; i < stage_chunks; i++) {
5523 if (stage_chunk[i] > view->lineno) {
5524 do_scroll_view(view, stage_chunk[i] - view->lineno);
5525 report("Chunk %d of %d", i + 1, stage_chunks);
5530 report("No next chunk found");
5534 stage_request(struct view *view, enum request request, struct line *line)
5537 case REQ_STATUS_UPDATE:
5538 if (!stage_update(view, line))
5542 case REQ_STATUS_REVERT:
5543 if (!stage_revert(view, line))
5547 case REQ_STAGE_NEXT:
5548 if (stage_line_type == LINE_STAT_UNTRACKED) {
5549 report("File is untracked; press %s to add",
5550 get_key(REQ_STATUS_UPDATE));
5553 stage_next(view, line);
5557 if (!stage_status.new.name[0])
5559 if (stage_status.status == 'D') {
5560 report("File has been deleted.");
5564 open_editor(stage_status.status != '?', stage_status.new.name);
5568 /* Reload everything ... */
5571 case REQ_VIEW_BLAME:
5572 if (stage_status.new.name[0]) {
5573 string_copy(opt_file, stage_status.new.name);
5579 return pager_request(view, request, line);
5585 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5586 open_view(view, REQ_VIEW_STATUS, OPEN_REFRESH);
5588 /* Check whether the staged entry still exists, and close the
5589 * stage view if it doesn't. */
5590 if (!status_exists(&stage_status, stage_line_type)) {
5591 status_restore(VIEW(REQ_VIEW_STATUS));
5592 return REQ_VIEW_CLOSE;
5595 if (stage_line_type == LINE_STAT_UNTRACKED) {
5596 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5597 report("Cannot display a directory");
5601 if (!prepare_update_file(view, stage_status.new.name)) {
5602 report("Failed to open file: %s", strerror(errno));
5606 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5611 static struct view_ops stage_ops = {
5628 char id[SIZEOF_REV]; /* SHA1 ID. */
5629 char title[128]; /* First line of the commit message. */
5630 const char *author; /* Author of the commit. */
5631 time_t time; /* Date from the author ident. */
5632 struct ref **refs; /* Repository references. */
5633 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5634 size_t graph_size; /* The width of the graph array. */
5635 bool has_parents; /* Rewritten --parents seen. */
5638 /* Size of rev graph with no "padding" columns */
5639 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5642 struct rev_graph *prev, *next, *parents;
5643 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5645 struct commit *commit;
5647 unsigned int boundary:1;
5650 /* Parents of the commit being visualized. */
5651 static struct rev_graph graph_parents[4];
5653 /* The current stack of revisions on the graph. */
5654 static struct rev_graph graph_stacks[4] = {
5655 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5656 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5657 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5658 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5662 graph_parent_is_merge(struct rev_graph *graph)
5664 return graph->parents->size > 1;
5668 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5670 struct commit *commit = graph->commit;
5672 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5673 commit->graph[commit->graph_size++] = symbol;
5677 clear_rev_graph(struct rev_graph *graph)
5679 graph->boundary = 0;
5680 graph->size = graph->pos = 0;
5681 graph->commit = NULL;
5682 memset(graph->parents, 0, sizeof(*graph->parents));
5686 done_rev_graph(struct rev_graph *graph)
5688 if (graph_parent_is_merge(graph) &&
5689 graph->pos < graph->size - 1 &&
5690 graph->next->size == graph->size + graph->parents->size - 1) {
5691 size_t i = graph->pos + graph->parents->size - 1;
5693 graph->commit->graph_size = i * 2;
5694 while (i < graph->next->size - 1) {
5695 append_to_rev_graph(graph, ' ');
5696 append_to_rev_graph(graph, '\\');
5701 clear_rev_graph(graph);
5705 push_rev_graph(struct rev_graph *graph, const char *parent)
5709 /* "Collapse" duplicate parents lines.
5711 * FIXME: This needs to also update update the drawn graph but
5712 * for now it just serves as a method for pruning graph lines. */
5713 for (i = 0; i < graph->size; i++)
5714 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5717 if (graph->size < SIZEOF_REVITEMS) {
5718 string_copy_rev(graph->rev[graph->size++], parent);
5723 get_rev_graph_symbol(struct rev_graph *graph)
5727 if (graph->boundary)
5728 symbol = REVGRAPH_BOUND;
5729 else if (graph->parents->size == 0)
5730 symbol = REVGRAPH_INIT;
5731 else if (graph_parent_is_merge(graph))
5732 symbol = REVGRAPH_MERGE;
5733 else if (graph->pos >= graph->size)
5734 symbol = REVGRAPH_BRANCH;
5736 symbol = REVGRAPH_COMMIT;
5742 draw_rev_graph(struct rev_graph *graph)
5745 chtype separator, line;
5747 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5748 static struct rev_filler fillers[] = {
5754 chtype symbol = get_rev_graph_symbol(graph);
5755 struct rev_filler *filler;
5758 if (opt_line_graphics)
5759 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5761 filler = &fillers[DEFAULT];
5763 for (i = 0; i < graph->pos; i++) {
5764 append_to_rev_graph(graph, filler->line);
5765 if (graph_parent_is_merge(graph->prev) &&
5766 graph->prev->pos == i)
5767 filler = &fillers[RSHARP];
5769 append_to_rev_graph(graph, filler->separator);
5772 /* Place the symbol for this revision. */
5773 append_to_rev_graph(graph, symbol);
5775 if (graph->prev->size > graph->size)
5776 filler = &fillers[RDIAG];
5778 filler = &fillers[DEFAULT];
5782 for (; i < graph->size; i++) {
5783 append_to_rev_graph(graph, filler->separator);
5784 append_to_rev_graph(graph, filler->line);
5785 if (graph_parent_is_merge(graph->prev) &&
5786 i < graph->prev->pos + graph->parents->size)
5787 filler = &fillers[RSHARP];
5788 if (graph->prev->size > graph->size)
5789 filler = &fillers[LDIAG];
5792 if (graph->prev->size > graph->size) {
5793 append_to_rev_graph(graph, filler->separator);
5794 if (filler->line != ' ')
5795 append_to_rev_graph(graph, filler->line);
5799 /* Prepare the next rev graph */
5801 prepare_rev_graph(struct rev_graph *graph)
5805 /* First, traverse all lines of revisions up to the active one. */
5806 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5807 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5810 push_rev_graph(graph->next, graph->rev[graph->pos]);
5813 /* Interleave the new revision parent(s). */
5814 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5815 push_rev_graph(graph->next, graph->parents->rev[i]);
5817 /* Lastly, put any remaining revisions. */
5818 for (i = graph->pos + 1; i < graph->size; i++)
5819 push_rev_graph(graph->next, graph->rev[i]);
5823 update_rev_graph(struct view *view, struct rev_graph *graph)
5825 /* If this is the finalizing update ... */
5827 prepare_rev_graph(graph);
5829 /* Graph visualization needs a one rev look-ahead,
5830 * so the first update doesn't visualize anything. */
5831 if (!graph->prev->commit)
5834 if (view->lines > 2)
5835 view->line[view->lines - 3].dirty = 1;
5836 if (view->lines > 1)
5837 view->line[view->lines - 2].dirty = 1;
5838 draw_rev_graph(graph->prev);
5839 done_rev_graph(graph->prev->prev);
5847 static const char *main_argv[SIZEOF_ARG] = {
5848 "git", "log", "--no-color", "--pretty=raw", "--parents",
5849 "--topo-order", "%(head)", NULL
5853 main_draw(struct view *view, struct line *line, unsigned int lineno)
5855 struct commit *commit = line->data;
5857 if (!commit->author)
5860 if (opt_date && draw_date(view, &commit->time))
5863 if (opt_author && draw_author(view, commit->author))
5866 if (opt_rev_graph && commit->graph_size &&
5867 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5870 if (opt_show_refs && commit->refs) {
5874 enum line_type type;
5876 if (commit->refs[i]->head)
5877 type = LINE_MAIN_HEAD;
5878 else if (commit->refs[i]->ltag)
5879 type = LINE_MAIN_LOCAL_TAG;
5880 else if (commit->refs[i]->tag)
5881 type = LINE_MAIN_TAG;
5882 else if (commit->refs[i]->tracked)
5883 type = LINE_MAIN_TRACKED;
5884 else if (commit->refs[i]->remote)
5885 type = LINE_MAIN_REMOTE;
5887 type = LINE_MAIN_REF;
5889 if (draw_text(view, type, "[", TRUE) ||
5890 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5891 draw_text(view, type, "]", TRUE))
5894 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5896 } while (commit->refs[i++]->next);
5899 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5903 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5905 main_read(struct view *view, char *line)
5907 static struct rev_graph *graph = graph_stacks;
5908 enum line_type type;
5909 struct commit *commit;
5914 if (!view->lines && !view->parent)
5915 die("No revisions match the given arguments.");
5916 if (view->lines > 0) {
5917 commit = view->line[view->lines - 1].data;
5918 view->line[view->lines - 1].dirty = 1;
5919 if (!commit->author) {
5922 graph->commit = NULL;
5925 update_rev_graph(view, graph);
5927 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5928 clear_rev_graph(&graph_stacks[i]);
5932 type = get_line_type(line);
5933 if (type == LINE_COMMIT) {
5934 commit = calloc(1, sizeof(struct commit));
5938 line += STRING_SIZE("commit ");
5940 graph->boundary = 1;
5944 string_copy_rev(commit->id, line);
5945 commit->refs = get_refs(commit->id);
5946 graph->commit = commit;
5947 add_line_data(view, commit, LINE_MAIN_COMMIT);
5949 while ((line = strchr(line, ' '))) {
5951 push_rev_graph(graph->parents, line);
5952 commit->has_parents = TRUE;
5959 commit = view->line[view->lines - 1].data;
5963 if (commit->has_parents)
5965 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5969 parse_author_line(line + STRING_SIZE("author "),
5970 &commit->author, &commit->time);
5971 update_rev_graph(view, graph);
5972 graph = graph->next;
5976 /* Fill in the commit title if it has not already been set. */
5977 if (commit->title[0])
5980 /* Require titles to start with a non-space character at the
5981 * offset used by git log. */
5982 if (strncmp(line, " ", 4))
5985 /* Well, if the title starts with a whitespace character,
5986 * try to be forgiving. Otherwise we end up with no title. */
5987 while (isspace(*line))
5991 /* FIXME: More graceful handling of titles; append "..." to
5992 * shortened titles, etc. */
5994 string_expand(commit->title, sizeof(commit->title), line, 1);
5995 view->line[view->lines - 1].dirty = 1;
6002 main_request(struct view *view, enum request request, struct line *line)
6004 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
6008 open_view(view, REQ_VIEW_DIFF, flags);
6012 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
6022 grep_refs(struct ref **refs, regex_t *regex)
6027 if (!opt_show_refs || !refs)
6030 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
6032 } while (refs[i++]->next);
6038 main_grep(struct view *view, struct line *line)
6040 struct commit *commit = line->data;
6041 const char *text[] = {
6043 opt_author ? commit->author : "",
6044 opt_date ? mkdate(&commit->time) : "",
6048 return grep_text(view, text) || grep_refs(commit->refs, view->regex);
6052 main_select(struct view *view, struct line *line)
6054 struct commit *commit = line->data;
6056 string_copy_rev(view->ref, commit->id);
6057 string_copy_rev(ref_commit, view->ref);
6060 static struct view_ops main_ops = {
6073 * Unicode / UTF-8 handling
6075 * NOTE: Much of the following code for dealing with Unicode is derived from
6076 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
6077 * src/intl/charset.c from the UTF-8 branch commit elinks-0.11.0-g31f2c28.
6081 unicode_width(unsigned long c)
6084 (c <= 0x115f /* Hangul Jamo */
6087 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
6089 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
6090 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
6091 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
6092 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
6093 || (c >= 0xffe0 && c <= 0xffe6)
6094 || (c >= 0x20000 && c <= 0x2fffd)
6095 || (c >= 0x30000 && c <= 0x3fffd)))
6099 return opt_tab_size;
6104 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
6105 * Illegal bytes are set one. */
6106 static const unsigned char utf8_bytes[256] = {
6107 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,
6108 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,
6109 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,
6110 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,
6111 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,
6112 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,
6113 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,
6114 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,
6117 /* Decode UTF-8 multi-byte representation into a Unicode character. */
6118 static inline unsigned long
6119 utf8_to_unicode(const char *string, size_t length)
6121 unsigned long unicode;
6125 unicode = string[0];
6128 unicode = (string[0] & 0x1f) << 6;
6129 unicode += (string[1] & 0x3f);
6132 unicode = (string[0] & 0x0f) << 12;
6133 unicode += ((string[1] & 0x3f) << 6);
6134 unicode += (string[2] & 0x3f);
6137 unicode = (string[0] & 0x0f) << 18;
6138 unicode += ((string[1] & 0x3f) << 12);
6139 unicode += ((string[2] & 0x3f) << 6);
6140 unicode += (string[3] & 0x3f);
6143 unicode = (string[0] & 0x0f) << 24;
6144 unicode += ((string[1] & 0x3f) << 18);
6145 unicode += ((string[2] & 0x3f) << 12);
6146 unicode += ((string[3] & 0x3f) << 6);
6147 unicode += (string[4] & 0x3f);
6150 unicode = (string[0] & 0x01) << 30;
6151 unicode += ((string[1] & 0x3f) << 24);
6152 unicode += ((string[2] & 0x3f) << 18);
6153 unicode += ((string[3] & 0x3f) << 12);
6154 unicode += ((string[4] & 0x3f) << 6);
6155 unicode += (string[5] & 0x3f);
6158 die("Invalid Unicode length");
6161 /* Invalid characters could return the special 0xfffd value but NUL
6162 * should be just as good. */
6163 return unicode > 0xffff ? 0 : unicode;
6166 /* Calculates how much of string can be shown within the given maximum width
6167 * and sets trimmed parameter to non-zero value if all of string could not be
6168 * shown. If the reserve flag is TRUE, it will reserve at least one
6169 * trailing character, which can be useful when drawing a delimiter.
6171 * Returns the number of bytes to output from string to satisfy max_width. */
6173 utf8_length(const char **start, size_t skip, int *width, size_t max_width, int *trimmed, bool reserve)
6175 const char *string = *start;
6176 const char *end = strchr(string, '\0');
6177 unsigned char last_bytes = 0;
6178 size_t last_ucwidth = 0;
6183 while (string < end) {
6184 int c = *(unsigned char *) string;
6185 unsigned char bytes = utf8_bytes[c];
6187 unsigned long unicode;
6189 if (string + bytes > end)
6192 /* Change representation to figure out whether
6193 * it is a single- or double-width character. */
6195 unicode = utf8_to_unicode(string, bytes);
6196 /* FIXME: Graceful handling of invalid Unicode character. */
6200 ucwidth = unicode_width(unicode);
6202 skip -= ucwidth <= skip ? ucwidth : skip;
6206 if (*width > max_width) {
6209 if (reserve && *width == max_width) {
6210 string -= last_bytes;
6211 *width -= last_ucwidth;
6217 last_bytes = ucwidth ? bytes : 0;
6218 last_ucwidth = ucwidth;
6221 return string - *start;
6229 /* Whether or not the curses interface has been initialized. */
6230 static bool cursed = FALSE;
6232 /* Terminal hacks and workarounds. */
6233 static bool use_scroll_redrawwin;
6234 static bool use_scroll_status_wclear;
6236 /* The status window is used for polling keystrokes. */
6237 static WINDOW *status_win;
6239 /* Reading from the prompt? */
6240 static bool input_mode = FALSE;
6242 static bool status_empty = FALSE;
6244 /* Update status and title window. */
6246 report(const char *msg, ...)
6248 struct view *view = display[current_view];
6254 char buf[SIZEOF_STR];
6257 va_start(args, msg);
6258 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6259 buf[sizeof(buf) - 1] = 0;
6260 buf[sizeof(buf) - 2] = '.';
6261 buf[sizeof(buf) - 3] = '.';
6262 buf[sizeof(buf) - 4] = '.';
6268 if (!status_empty || *msg) {
6271 va_start(args, msg);
6273 wmove(status_win, 0, 0);
6274 if (view->has_scrolled && use_scroll_status_wclear)
6277 vwprintw(status_win, msg, args);
6278 status_empty = FALSE;
6280 status_empty = TRUE;
6282 wclrtoeol(status_win);
6283 wnoutrefresh(status_win);
6288 update_view_title(view);
6291 /* Controls when nodelay should be in effect when polling user input. */
6293 set_nonblocking_input(bool loading)
6295 static unsigned int loading_views;
6297 if ((loading == FALSE && loading_views-- == 1) ||
6298 (loading == TRUE && loading_views++ == 0))
6299 nodelay(status_win, loading);
6308 /* Initialize the curses library */
6309 if (isatty(STDIN_FILENO)) {
6310 cursed = !!initscr();
6313 /* Leave stdin and stdout alone when acting as a pager. */
6314 opt_tty = fopen("/dev/tty", "r+");
6316 die("Failed to open /dev/tty");
6317 cursed = !!newterm(NULL, opt_tty, opt_tty);
6321 die("Failed to initialize curses");
6323 nonl(); /* Disable conversion and detect newlines from input. */
6324 cbreak(); /* Take input chars one at a time, no wait for \n */
6325 noecho(); /* Don't echo input */
6326 leaveok(stdscr, FALSE);
6331 getmaxyx(stdscr, y, x);
6332 status_win = newwin(1, 0, y - 1, 0);
6334 die("Failed to create status window");
6336 /* Enable keyboard mapping */
6337 keypad(status_win, TRUE);
6338 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6340 TABSIZE = opt_tab_size;
6341 if (opt_line_graphics) {
6342 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6345 term = getenv("XTERM_VERSION") ? NULL : getenv("COLORTERM");
6346 if (term && !strcmp(term, "gnome-terminal")) {
6347 /* In the gnome-terminal-emulator, the message from
6348 * scrolling up one line when impossible followed by
6349 * scrolling down one line causes corruption of the
6350 * status line. This is fixed by calling wclear. */
6351 use_scroll_status_wclear = TRUE;
6352 use_scroll_redrawwin = FALSE;
6354 } else if (term && !strcmp(term, "xrvt-xpm")) {
6355 /* No problems with full optimizations in xrvt-(unicode)
6357 use_scroll_status_wclear = use_scroll_redrawwin = FALSE;
6360 /* When scrolling in (u)xterm the last line in the
6361 * scrolling direction will update slowly. */
6362 use_scroll_redrawwin = TRUE;
6363 use_scroll_status_wclear = FALSE;
6368 get_input(int prompt_position)
6371 int i, key, cursor_y, cursor_x;
6373 if (prompt_position)
6377 foreach_view (view, i) {
6379 if (view_is_displayed(view) && view->has_scrolled &&
6380 use_scroll_redrawwin)
6381 redrawwin(view->win);
6382 view->has_scrolled = FALSE;
6385 /* Update the cursor position. */
6386 if (prompt_position) {
6387 getbegyx(status_win, cursor_y, cursor_x);
6388 cursor_x = prompt_position;
6390 view = display[current_view];
6391 getbegyx(view->win, cursor_y, cursor_x);
6392 cursor_x = view->width - 1;
6393 cursor_y += view->lineno - view->offset;
6395 setsyx(cursor_y, cursor_x);
6397 /* Refresh, accept single keystroke of input */
6399 key = wgetch(status_win);
6401 /* wgetch() with nodelay() enabled returns ERR when
6402 * there's no input. */
6405 } else if (key == KEY_RESIZE) {
6408 getmaxyx(stdscr, height, width);
6410 wresize(status_win, 1, width);
6411 mvwin(status_win, height - 1, 0);
6412 wnoutrefresh(status_win);
6414 redraw_display(TRUE);
6424 prompt_input(const char *prompt, input_handler handler, void *data)
6426 enum input_status status = INPUT_OK;
6427 static char buf[SIZEOF_STR];
6432 while (status == INPUT_OK || status == INPUT_SKIP) {
6435 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6436 wclrtoeol(status_win);
6438 key = get_input(pos + 1);
6443 status = pos ? INPUT_STOP : INPUT_CANCEL;
6450 status = INPUT_CANCEL;
6454 status = INPUT_CANCEL;
6458 if (pos >= sizeof(buf)) {
6459 report("Input string too long");
6463 status = handler(data, buf, key);
6464 if (status == INPUT_OK)
6465 buf[pos++] = (char) key;
6469 /* Clear the status window */
6470 status_empty = FALSE;
6473 if (status == INPUT_CANCEL)
6481 static enum input_status
6482 prompt_yesno_handler(void *data, char *buf, int c)
6484 if (c == 'y' || c == 'Y')
6486 if (c == 'n' || c == 'N')
6487 return INPUT_CANCEL;
6492 prompt_yesno(const char *prompt)
6494 char prompt2[SIZEOF_STR];
6496 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6499 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6502 static enum input_status
6503 read_prompt_handler(void *data, char *buf, int c)
6505 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6509 read_prompt(const char *prompt)
6511 return prompt_input(prompt, read_prompt_handler, NULL);
6515 * Repository properties
6518 static struct ref *refs = NULL;
6519 static size_t refs_size = 0;
6521 /* Id <-> ref store */
6522 static struct ref ***id_refs = NULL;
6523 static size_t id_refs_size = 0;
6525 DEFINE_ALLOCATOR(realloc_refs, struct ref, 256)
6526 DEFINE_ALLOCATOR(realloc_refs_list, struct ref *, 8)
6527 DEFINE_ALLOCATOR(realloc_refs_lists, struct ref **, 8)
6530 compare_refs(const void *ref1_, const void *ref2_)
6532 const struct ref *ref1 = *(const struct ref **)ref1_;
6533 const struct ref *ref2 = *(const struct ref **)ref2_;
6535 if (ref1->tag != ref2->tag)
6536 return ref2->tag - ref1->tag;
6537 if (ref1->ltag != ref2->ltag)
6538 return ref2->ltag - ref2->ltag;
6539 if (ref1->head != ref2->head)
6540 return ref2->head - ref1->head;
6541 if (ref1->tracked != ref2->tracked)
6542 return ref2->tracked - ref1->tracked;
6543 if (ref1->remote != ref2->remote)
6544 return ref2->remote - ref1->remote;
6545 return strcmp(ref1->name, ref2->name);
6548 static struct ref **
6549 get_refs(const char *id)
6551 struct ref **ref_list = NULL;
6552 size_t ref_list_size = 0;
6555 for (i = 0; i < id_refs_size; i++)
6556 if (!strcmp(id, id_refs[i][0]->id))
6559 if (!realloc_refs_lists(&id_refs, id_refs_size, 1))
6562 for (i = 0; i < refs_size; i++) {
6563 if (strcmp(id, refs[i].id))
6566 if (!realloc_refs_list(&ref_list, ref_list_size, 1))
6569 ref_list[ref_list_size] = &refs[i];
6570 /* XXX: The properties of the commit chains ensures that we can
6571 * safely modify the shared ref. The repo references will
6572 * always be similar for the same id. */
6573 ref_list[ref_list_size]->next = 1;
6578 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6579 ref_list[ref_list_size - 1]->next = 0;
6580 id_refs[id_refs_size++] = ref_list;
6587 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6592 bool remote = FALSE;
6593 bool tracked = FALSE;
6594 bool check_replace = FALSE;
6597 if (!prefixcmp(name, "refs/tags/")) {
6598 if (!suffixcmp(name, namelen, "^{}")) {
6601 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6602 check_replace = TRUE;
6608 namelen -= STRING_SIZE("refs/tags/");
6609 name += STRING_SIZE("refs/tags/");
6611 } else if (!prefixcmp(name, "refs/remotes/")) {
6613 namelen -= STRING_SIZE("refs/remotes/");
6614 name += STRING_SIZE("refs/remotes/");
6615 tracked = !strcmp(opt_remote, name);
6617 } else if (!prefixcmp(name, "refs/heads/")) {
6618 namelen -= STRING_SIZE("refs/heads/");
6619 name += STRING_SIZE("refs/heads/");
6620 head = !strncmp(opt_head, name, namelen);
6622 } else if (!strcmp(name, "HEAD")) {
6623 string_ncopy(opt_head_rev, id, idlen);
6627 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6628 /* it's an annotated tag, replace the previous SHA1 with the
6629 * resolved commit id; relies on the fact git-ls-remote lists
6630 * the commit id of an annotated tag right before the commit id
6632 refs[refs_size - 1].ltag = ltag;
6633 string_copy_rev(refs[refs_size - 1].id, id);
6638 if (!realloc_refs(&refs, refs_size, 1))
6641 ref = &refs[refs_size++];
6642 ref->name = malloc(namelen + 1);
6646 strncpy(ref->name, name, namelen);
6647 ref->name[namelen] = 0;
6651 ref->remote = remote;
6652 ref->tracked = tracked;
6653 string_copy_rev(ref->id, id);
6661 const char *head_argv[] = {
6662 "git", "symbolic-ref", "HEAD", NULL
6664 static const char *ls_remote_argv[SIZEOF_ARG] = {
6665 "git", "ls-remote", opt_git_dir, NULL
6667 static bool init = FALSE;
6670 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6677 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6678 chomp_string(opt_head);
6679 if (!prefixcmp(opt_head, "refs/heads/")) {
6680 char *offset = opt_head + STRING_SIZE("refs/heads/");
6682 memmove(opt_head, offset, strlen(offset) + 1);
6686 while (refs_size > 0)
6687 free(refs[--refs_size].name);
6688 while (id_refs_size > 0)
6689 free(id_refs[--id_refs_size]);
6691 return run_io_load(ls_remote_argv, "\t", read_ref);
6695 set_remote_branch(const char *name, const char *value, size_t valuelen)
6697 if (!strcmp(name, ".remote")) {
6698 string_ncopy(opt_remote, value, valuelen);
6700 } else if (*opt_remote && !strcmp(name, ".merge")) {
6701 size_t from = strlen(opt_remote);
6703 if (!prefixcmp(value, "refs/heads/"))
6704 value += STRING_SIZE("refs/heads/");
6706 if (!string_format_from(opt_remote, &from, "/%s", value))
6712 set_repo_config_option(char *name, char *value, int (*cmd)(int, const char **))
6714 const char *argv[SIZEOF_ARG] = { name, "=" };
6715 int argc = 1 + (cmd == option_set_command);
6718 if (!argv_from_string(argv, &argc, value))
6719 config_msg = "Too many option arguments";
6721 error = cmd(argc, argv);
6724 warn("Option 'tig.%s': %s", name, config_msg);
6728 set_environment_variable(const char *name, const char *value)
6730 size_t len = strlen(name) + 1 + strlen(value) + 1;
6731 char *env = malloc(len);
6734 string_nformat(env, len, NULL, "%s=%s", name, value) &&
6742 set_work_tree(const char *value)
6744 char cwd[SIZEOF_STR];
6746 if (!getcwd(cwd, sizeof(cwd)))
6747 die("Failed to get cwd path: %s", strerror(errno));
6748 if (chdir(opt_git_dir) < 0)
6749 die("Failed to chdir(%s): %s", strerror(errno));
6750 if (!getcwd(opt_git_dir, sizeof(opt_git_dir)))
6751 die("Failed to get git path: %s", strerror(errno));
6753 die("Failed to chdir(%s): %s", cwd, strerror(errno));
6754 if (chdir(value) < 0)
6755 die("Failed to chdir(%s): %s", value, strerror(errno));
6756 if (!getcwd(cwd, sizeof(cwd)))
6757 die("Failed to get cwd path: %s", strerror(errno));
6758 if (!set_environment_variable("GIT_WORK_TREE", cwd))
6759 die("Failed to set GIT_WORK_TREE to '%s'", cwd);
6760 if (!set_environment_variable("GIT_DIR", opt_git_dir))
6761 die("Failed to set GIT_DIR to '%s'", opt_git_dir);
6762 opt_is_inside_work_tree = TRUE;
6766 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6768 if (!strcmp(name, "i18n.commitencoding"))
6769 string_ncopy(opt_encoding, value, valuelen);
6771 else if (!strcmp(name, "core.editor"))
6772 string_ncopy(opt_editor, value, valuelen);
6774 else if (!strcmp(name, "core.worktree"))
6775 set_work_tree(value);
6777 else if (!prefixcmp(name, "tig.color."))
6778 set_repo_config_option(name + 10, value, option_color_command);
6780 else if (!prefixcmp(name, "tig.bind."))
6781 set_repo_config_option(name + 9, value, option_bind_command);
6783 else if (!prefixcmp(name, "tig."))
6784 set_repo_config_option(name + 4, value, option_set_command);
6786 else if (*opt_head && !prefixcmp(name, "branch.") &&
6787 !strncmp(name + 7, opt_head, strlen(opt_head)))
6788 set_remote_branch(name + 7 + strlen(opt_head), value, valuelen);
6794 load_git_config(void)
6796 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6798 return run_io_load(config_list_argv, "=", read_repo_config_option);
6802 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6804 if (!opt_git_dir[0]) {
6805 string_ncopy(opt_git_dir, name, namelen);
6807 } else if (opt_is_inside_work_tree == -1) {
6808 /* This can be 3 different values depending on the
6809 * version of git being used. If git-rev-parse does not
6810 * understand --is-inside-work-tree it will simply echo
6811 * the option else either "true" or "false" is printed.
6812 * Default to true for the unknown case. */
6813 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6815 } else if (*name == '.') {
6816 string_ncopy(opt_cdup, name, namelen);
6819 string_ncopy(opt_prefix, name, namelen);
6826 load_repo_info(void)
6828 const char *rev_parse_argv[] = {
6829 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6830 "--show-cdup", "--show-prefix", NULL
6833 return run_io_load(rev_parse_argv, "=", read_repo_info);
6841 static const char usage[] =
6842 "tig " TIG_VERSION " (" __DATE__ ")\n"
6844 "Usage: tig [options] [revs] [--] [paths]\n"
6845 " or: tig show [options] [revs] [--] [paths]\n"
6846 " or: tig blame [rev] path\n"
6848 " or: tig < [git command output]\n"
6851 " -v, --version Show version and exit\n"
6852 " -h, --help Show help message and exit";
6854 static void __NORETURN
6857 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6863 static void __NORETURN
6864 die(const char *err, ...)
6870 va_start(args, err);
6871 fputs("tig: ", stderr);
6872 vfprintf(stderr, err, args);
6873 fputs("\n", stderr);
6880 warn(const char *msg, ...)
6884 va_start(args, msg);
6885 fputs("tig warning: ", stderr);
6886 vfprintf(stderr, msg, args);
6887 fputs("\n", stderr);
6892 parse_options(int argc, const char *argv[])
6894 enum request request = REQ_VIEW_MAIN;
6895 const char *subcommand;
6896 bool seen_dashdash = FALSE;
6897 /* XXX: This is vulnerable to the user overriding options
6898 * required for the main view parser. */
6899 const char *custom_argv[SIZEOF_ARG] = {
6900 "git", "log", "--no-color", "--pretty=raw", "--parents",
6901 "--topo-order", NULL
6905 if (!isatty(STDIN_FILENO)) {
6906 io_open(&VIEW(REQ_VIEW_PAGER)->io, "");
6907 return REQ_VIEW_PAGER;
6913 subcommand = argv[1];
6914 if (!strcmp(subcommand, "status")) {
6916 warn("ignoring arguments after `%s'", subcommand);
6917 return REQ_VIEW_STATUS;
6919 } else if (!strcmp(subcommand, "blame")) {
6920 if (argc <= 2 || argc > 4)
6921 die("invalid number of options to blame\n\n%s", usage);
6925 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
6929 string_ncopy(opt_file, argv[i], strlen(argv[i]));
6930 return REQ_VIEW_BLAME;
6932 } else if (!strcmp(subcommand, "show")) {
6933 request = REQ_VIEW_DIFF;
6940 custom_argv[1] = subcommand;
6944 for (i = 1 + !!subcommand; i < argc; i++) {
6945 const char *opt = argv[i];
6947 if (seen_dashdash || !strcmp(opt, "--")) {
6948 seen_dashdash = TRUE;
6950 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
6951 printf("tig version %s\n", TIG_VERSION);
6954 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
6955 printf("%s\n", usage);
6959 custom_argv[j++] = opt;
6960 if (j >= ARRAY_SIZE(custom_argv))
6961 die("command too long");
6964 if (!prepare_update(VIEW(request), custom_argv, NULL, FORMAT_NONE))
6965 die("Failed to format arguments");
6971 main(int argc, const char *argv[])
6973 enum request request = parse_options(argc, argv);
6977 signal(SIGINT, quit);
6978 signal(SIGPIPE, SIG_IGN);
6980 if (setlocale(LC_ALL, "")) {
6981 char *codeset = nl_langinfo(CODESET);
6983 string_ncopy(opt_codeset, codeset, strlen(codeset));
6986 if (load_repo_info() == ERR)
6987 die("Failed to load repo info.");
6989 if (load_options() == ERR)
6990 die("Failed to load user config.");
6992 if (load_git_config() == ERR)
6993 die("Failed to load repo config.");
6995 /* Require a git repository unless when running in pager mode. */
6996 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6997 die("Not a git repository");
6999 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
7002 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
7003 opt_iconv = iconv_open(opt_codeset, opt_encoding);
7004 if (opt_iconv == ICONV_NONE)
7005 die("Failed to initialize character set conversion");
7008 if (load_refs() == ERR)
7009 die("Failed to load refs.");
7011 foreach_view (view, i)
7012 argv_from_env(view->ops->argv, view->cmd_env);
7016 if (request != REQ_NONE)
7017 open_view(NULL, request, OPEN_PREPARED);
7018 request = request == REQ_NONE ? REQ_VIEW_MAIN : REQ_NONE;
7020 while (view_driver(display[current_view], request)) {
7021 int key = get_input(0);
7023 view = display[current_view];
7024 request = get_keybinding(view->keymap, key);
7026 /* Some low-level request handling. This keeps access to
7027 * status_win restricted. */
7031 char *cmd = read_prompt(":");
7033 if (cmd && isdigit(*cmd)) {
7034 int lineno = view->lineno + 1;
7036 if (parse_int(&lineno, cmd, 1, view->lines + 1) == OK) {
7037 select_view_line(view, lineno - 1);
7040 report("Unable to parse '%s' as a line number", cmd);
7044 struct view *next = VIEW(REQ_VIEW_PAGER);
7045 const char *argv[SIZEOF_ARG] = { "git" };
7048 /* When running random commands, initially show the
7049 * command in the title. However, it maybe later be
7050 * overwritten if a commit line is selected. */
7051 string_ncopy(next->ref, cmd, strlen(cmd));
7053 if (!argv_from_string(argv, &argc, cmd)) {
7054 report("Too many arguments");
7055 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
7056 report("Failed to format command");
7058 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
7066 case REQ_SEARCH_BACK:
7068 const char *prompt = request == REQ_SEARCH ? "/" : "?";
7069 char *search = read_prompt(prompt);
7072 string_ncopy(opt_search, search, strlen(search));
7073 else if (*opt_search)
7074 request = request == REQ_SEARCH ?