1 /* Copyright (c) 2006-2008 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>
45 /* ncurses(3): Must be defined to have extended wide-character functions. */
46 #define _XOPEN_SOURCE_EXTENDED
48 #ifdef HAVE_NCURSESW_NCURSES_H
49 #include <ncursesw/ncurses.h>
51 #ifdef HAVE_NCURSES_NCURSES_H
52 #include <ncurses/ncurses.h>
59 #define __NORETURN __attribute__((__noreturn__))
64 static void __NORETURN die(const char *err, ...);
65 static void warn(const char *msg, ...);
66 static void report(const char *msg, ...);
67 static int read_properties(FILE *pipe, const char *separators, int (*read)(char *, size_t, char *, size_t));
68 static void set_nonblocking_input(bool loading);
69 static size_t utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve);
70 static bool prompt_yesno(const char *prompt);
71 static int load_refs(void);
73 #define ABS(x) ((x) >= 0 ? (x) : -(x))
74 #define MIN(x, y) ((x) < (y) ? (x) : (y))
76 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
77 #define STRING_SIZE(x) (sizeof(x) - 1)
79 #define SIZEOF_STR 1024 /* Default string size. */
80 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
81 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL. */
82 #define SIZEOF_ARG 32 /* Default argument array size. */
86 #define REVGRAPH_INIT 'I'
87 #define REVGRAPH_MERGE 'M'
88 #define REVGRAPH_BRANCH '+'
89 #define REVGRAPH_COMMIT '*'
90 #define REVGRAPH_BOUND '^'
92 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
94 /* This color name can be used to refer to the default term colors. */
95 #define COLOR_DEFAULT (-1)
97 #define ICONV_NONE ((iconv_t) -1)
99 #define ICONV_CONST /* nothing */
102 /* The format and size of the date column in the main view. */
103 #define DATE_FORMAT "%Y-%m-%d %H:%M"
104 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
106 #define AUTHOR_COLS 20
109 /* The default interval between line numbers. */
110 #define NUMBER_INTERVAL 5
114 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
116 #define NULL_ID "0000000000000000000000000000000000000000"
119 #define GIT_CONFIG "config"
122 #define TIG_LS_REMOTE \
123 "git ls-remote . 2>/dev/null"
125 #define TIG_MAIN_BASE \
126 "git log --no-color --pretty=raw --parents --topo-order"
128 /* Some ascii-shorthands fitted into the ncurses namespace. */
130 #define KEY_RETURN '\r'
135 char *name; /* Ref name; tag or head names are shortened. */
136 char id[SIZEOF_REV]; /* Commit SHA1 ID */
137 unsigned int head:1; /* Is it the current HEAD? */
138 unsigned int tag:1; /* Is it a tag? */
139 unsigned int ltag:1; /* If so, is the tag local? */
140 unsigned int remote:1; /* Is it a remote ref? */
141 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
142 unsigned int next:1; /* For ref lists: are there more refs? */
145 static struct ref **get_refs(const char *id);
148 FORMAT_ALL, /* Perform replacement in all arguments. */
149 FORMAT_DASH, /* Perform replacement up until "--". */
150 FORMAT_NONE /* No replacement should be performed. */
153 static bool format_command(char dst[], const char *src[], enum format_flags flags);
154 static bool format_argv(const char *dst[], const char *src[], enum format_flags flags);
163 set_from_int_map(struct int_map *map, size_t map_size,
164 int *value, const char *name, int namelen)
169 for (i = 0; i < map_size; i++)
170 if (namelen == map[i].namelen &&
171 !strncasecmp(name, map[i].name, namelen)) {
172 *value = map[i].value;
185 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
187 if (srclen > dstlen - 1)
190 strncpy(dst, src, srclen);
194 /* Shorthands for safely copying into a fixed buffer. */
196 #define string_copy(dst, src) \
197 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
199 #define string_ncopy(dst, src, srclen) \
200 string_ncopy_do(dst, sizeof(dst), src, srclen)
202 #define string_copy_rev(dst, src) \
203 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
205 #define string_add(dst, from, src) \
206 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
209 chomp_string(char *name)
213 while (isspace(*name))
216 namelen = strlen(name) - 1;
217 while (namelen > 0 && isspace(name[namelen]))
224 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
227 size_t pos = bufpos ? *bufpos : 0;
230 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
236 return pos >= bufsize ? FALSE : TRUE;
239 #define string_format(buf, fmt, args...) \
240 string_nformat(buf, sizeof(buf), NULL, fmt, args)
242 #define string_format_from(buf, from, fmt, args...) \
243 string_nformat(buf, sizeof(buf), from, fmt, args)
246 string_enum_compare(const char *str1, const char *str2, int len)
250 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
252 /* Diff-Header == DIFF_HEADER */
253 for (i = 0; i < len; i++) {
254 if (toupper(str1[i]) == toupper(str2[i]))
257 if (string_enum_sep(str1[i]) &&
258 string_enum_sep(str2[i]))
261 return str1[i] - str2[i];
267 #define prefixcmp(str1, str2) \
268 strncmp(str1, str2, STRING_SIZE(str2))
271 suffixcmp(const char *str, int slen, const char *suffix)
273 size_t len = slen >= 0 ? slen : strlen(str);
274 size_t suffixlen = strlen(suffix);
276 return suffixlen < len ? strcmp(str + len - suffixlen, suffix) : -1;
281 * NOTE: The following is a slightly modified copy of the git project's shell
282 * quoting routines found in the quote.c file.
284 * Help to copy the thing properly quoted for the shell safety. any single
285 * quote is replaced with '\'', any exclamation point is replaced with '\!',
286 * and the whole thing is enclosed in a
289 * original sq_quote result
290 * name ==> name ==> 'name'
291 * a b ==> a b ==> 'a b'
292 * a'b ==> a'\''b ==> 'a'\''b'
293 * a!b ==> a'\!'b ==> 'a'\!'b'
297 sq_quote(char buf[SIZEOF_STR], size_t bufsize, const char *src)
301 #define BUFPUT(x) do { if (bufsize < SIZEOF_STR) buf[bufsize++] = (x); } while (0)
304 while ((c = *src++)) {
305 if (c == '\'' || c == '!') {
316 if (bufsize < SIZEOF_STR)
323 argv_from_string(const char *argv[SIZEOF_ARG], int *argc, char *cmd)
327 while (*cmd && *argc < SIZEOF_ARG && (valuelen = strcspn(cmd, " \t"))) {
328 bool advance = cmd[valuelen] != 0;
331 argv[(*argc)++] = chomp_string(cmd);
332 cmd += valuelen + advance;
335 if (*argc < SIZEOF_ARG)
337 return *argc < SIZEOF_ARG;
341 argv_from_env(const char **argv, const char *name)
343 char *env = argv ? getenv(name) : NULL;
348 if (env && !argv_from_string(argv, &argc, env))
349 die("Too many arguments in the `%s` environment variable", name);
354 * Executing external commands.
358 IO_FD, /* File descriptor based IO. */
359 IO_FG, /* Execute command with same std{in,out,err}. */
360 IO_RD, /* Read only fork+exec IO. */
361 IO_WR, /* Write only fork+exec IO. */
365 enum io_type type; /* The requested type of pipe. */
366 const char *dir; /* Directory from which to execute. */
367 FILE *pipe; /* Pipe for reading or writing. */
368 int error; /* Error status. */
369 char sh[SIZEOF_STR]; /* Shell command buffer. */
370 char *buf; /* Read/write buffer. */
371 size_t bufalloc; /* Allocated buffer size. */
375 reset_io(struct io *io)
384 init_io(struct io *io, const char *dir, enum io_type type)
392 init_io_rd(struct io *io, const char *argv[], const char *dir,
393 enum format_flags flags)
395 init_io(io, dir, IO_RD);
396 return format_command(io->sh, argv, flags);
400 init_io_fd(struct io *io, FILE *pipe)
402 init_io(io, NULL, IO_FD);
404 return io->pipe != NULL;
408 done_io(struct io *io)
411 if (io->type == IO_FD)
413 else if (io->type == IO_RD || io->type == IO_WR)
420 start_io(struct io *io)
422 char buf[SIZEOF_STR * 2];
425 if (io->dir && *io->dir &&
426 !string_format_from(buf, &bufpos, "cd %s;", io->dir))
429 if (!string_format_from(buf, &bufpos, "%s", io->sh))
432 if (io->type == IO_FG)
433 return system(buf) == 0;
435 io->pipe = popen(io->sh, io->type == IO_RD ? "r" : "w");
436 return io->pipe != NULL;
440 run_io(struct io *io, enum io_type type, const char *cmd)
442 init_io(io, NULL, type);
443 string_ncopy(io->sh, cmd, strlen(cmd));
448 run_io_do(struct io *io)
450 return start_io(io) && done_io(io);
454 run_io_fg(const char **argv, const char *dir)
458 init_io(&io, dir, IO_FG);
459 if (!format_command(io.sh, argv, FORMAT_NONE))
461 return run_io_do(&io);
465 run_io_rd(struct io *io, const char **argv, enum format_flags flags)
467 return init_io_rd(io, argv, NULL, flags) && start_io(io);
471 io_eof(struct io *io)
473 return feof(io->pipe);
477 io_error(struct io *io)
483 io_strerror(struct io *io)
485 return strerror(io->error);
489 io_gets(struct io *io)
492 io->buf = malloc(BUFSIZ);
495 io->bufalloc = BUFSIZ;
498 if (!fgets(io->buf, io->bufalloc, io->pipe)) {
499 if (ferror(io->pipe))
508 run_io_buf(const char **argv, char buf[], size_t bufsize)
513 if (!run_io_rd(&io, argv, FORMAT_NONE))
517 io.bufalloc = bufsize;
518 error = !io_gets(&io) && io_error(&io);
521 return done_io(&io) || error;
530 /* XXX: Keep the view request first and in sync with views[]. */ \
531 REQ_GROUP("View switching") \
532 REQ_(VIEW_MAIN, "Show main view"), \
533 REQ_(VIEW_DIFF, "Show diff view"), \
534 REQ_(VIEW_LOG, "Show log view"), \
535 REQ_(VIEW_TREE, "Show tree view"), \
536 REQ_(VIEW_BLOB, "Show blob view"), \
537 REQ_(VIEW_BLAME, "Show blame view"), \
538 REQ_(VIEW_HELP, "Show help page"), \
539 REQ_(VIEW_PAGER, "Show pager view"), \
540 REQ_(VIEW_STATUS, "Show status view"), \
541 REQ_(VIEW_STAGE, "Show stage view"), \
543 REQ_GROUP("View manipulation") \
544 REQ_(ENTER, "Enter current line and scroll"), \
545 REQ_(NEXT, "Move to next"), \
546 REQ_(PREVIOUS, "Move to previous"), \
547 REQ_(VIEW_NEXT, "Move focus to next view"), \
548 REQ_(REFRESH, "Reload and refresh"), \
549 REQ_(MAXIMIZE, "Maximize the current view"), \
550 REQ_(VIEW_CLOSE, "Close the current view"), \
551 REQ_(QUIT, "Close all views and quit"), \
553 REQ_GROUP("View specific requests") \
554 REQ_(STATUS_UPDATE, "Update file status"), \
555 REQ_(STATUS_REVERT, "Revert file changes"), \
556 REQ_(STATUS_MERGE, "Merge file using external tool"), \
557 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
558 REQ_(TREE_PARENT, "Switch to parent directory in tree view"), \
560 REQ_GROUP("Cursor navigation") \
561 REQ_(MOVE_UP, "Move cursor one line up"), \
562 REQ_(MOVE_DOWN, "Move cursor one line down"), \
563 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
564 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
565 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
566 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
568 REQ_GROUP("Scrolling") \
569 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
570 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
571 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
572 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
574 REQ_GROUP("Searching") \
575 REQ_(SEARCH, "Search the view"), \
576 REQ_(SEARCH_BACK, "Search backwards in the view"), \
577 REQ_(FIND_NEXT, "Find next search match"), \
578 REQ_(FIND_PREV, "Find previous search match"), \
580 REQ_GROUP("Option manipulation") \
581 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
582 REQ_(TOGGLE_DATE, "Toggle date display"), \
583 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
584 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
585 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
588 REQ_(PROMPT, "Bring up the prompt"), \
589 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
590 REQ_(SCREEN_RESIZE, "Resize the screen"), \
591 REQ_(SHOW_VERSION, "Show version information"), \
592 REQ_(STOP_LOADING, "Stop all loading views"), \
593 REQ_(EDIT, "Open in editor"), \
594 REQ_(NONE, "Do nothing")
597 /* User action requests. */
599 #define REQ_GROUP(help)
600 #define REQ_(req, help) REQ_##req
602 /* Offset all requests to avoid conflicts with ncurses getch values. */
603 REQ_OFFSET = KEY_MAX + 1,
610 struct request_info {
611 enum request request;
617 static struct request_info req_info[] = {
618 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
619 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
626 get_request(const char *name)
628 int namelen = strlen(name);
631 for (i = 0; i < ARRAY_SIZE(req_info); i++)
632 if (req_info[i].namelen == namelen &&
633 !string_enum_compare(req_info[i].name, name, namelen))
634 return req_info[i].request;
644 static const char usage[] =
645 "tig " TIG_VERSION " (" __DATE__ ")\n"
647 "Usage: tig [options] [revs] [--] [paths]\n"
648 " or: tig show [options] [revs] [--] [paths]\n"
649 " or: tig blame [rev] path\n"
651 " or: tig < [git command output]\n"
654 " -v, --version Show version and exit\n"
655 " -h, --help Show help message and exit";
657 /* Option and state variables. */
658 static bool opt_date = TRUE;
659 static bool opt_author = TRUE;
660 static bool opt_line_number = FALSE;
661 static bool opt_line_graphics = TRUE;
662 static bool opt_rev_graph = FALSE;
663 static bool opt_show_refs = TRUE;
664 static int opt_num_interval = NUMBER_INTERVAL;
665 static int opt_tab_size = TAB_SIZE;
666 static int opt_author_cols = AUTHOR_COLS-1;
667 static char opt_cmd[SIZEOF_STR] = "";
668 static char opt_path[SIZEOF_STR] = "";
669 static char opt_file[SIZEOF_STR] = "";
670 static char opt_ref[SIZEOF_REF] = "";
671 static char opt_head[SIZEOF_REF] = "";
672 static char opt_head_rev[SIZEOF_REV] = "";
673 static char opt_remote[SIZEOF_REF] = "";
674 static FILE *opt_pipe = NULL;
675 static char opt_encoding[20] = "UTF-8";
676 static bool opt_utf8 = TRUE;
677 static char opt_codeset[20] = "UTF-8";
678 static iconv_t opt_iconv = ICONV_NONE;
679 static char opt_search[SIZEOF_STR] = "";
680 static char opt_cdup[SIZEOF_STR] = "";
681 static char opt_git_dir[SIZEOF_STR] = "";
682 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
683 static char opt_editor[SIZEOF_STR] = "";
684 static FILE *opt_tty = NULL;
686 #define is_initial_commit() (!*opt_head_rev)
687 #define is_head_commit(rev) (!strcmp((rev), "HEAD") || !strcmp(opt_head_rev, (rev)))
690 parse_options(int argc, const char *argv[])
692 enum request request = REQ_VIEW_MAIN;
694 const char *subcommand;
695 bool seen_dashdash = FALSE;
698 if (!isatty(STDIN_FILENO)) {
700 return REQ_VIEW_PAGER;
704 return REQ_VIEW_MAIN;
706 subcommand = argv[1];
707 if (!strcmp(subcommand, "status") || !strcmp(subcommand, "-S")) {
708 if (!strcmp(subcommand, "-S"))
709 warn("`-S' has been deprecated; use `tig status' instead");
711 warn("ignoring arguments after `%s'", subcommand);
712 return REQ_VIEW_STATUS;
714 } else if (!strcmp(subcommand, "blame")) {
715 if (argc <= 2 || argc > 4)
716 die("invalid number of options to blame\n\n%s", usage);
720 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
724 string_ncopy(opt_file, argv[i], strlen(argv[i]));
725 return REQ_VIEW_BLAME;
727 } else if (!strcmp(subcommand, "show")) {
728 request = REQ_VIEW_DIFF;
730 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
731 request = subcommand[0] == 'l' ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
732 warn("`tig %s' has been deprecated", subcommand);
739 /* XXX: This is vulnerable to the user overriding
740 * options required for the main view parser. */
741 string_copy(opt_cmd, TIG_MAIN_BASE);
743 string_format(opt_cmd, "git %s", subcommand);
745 buf_size = strlen(opt_cmd);
747 for (i = 1 + !!subcommand; i < argc; i++) {
748 const char *opt = argv[i];
750 if (seen_dashdash || !strcmp(opt, "--")) {
751 seen_dashdash = TRUE;
753 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
754 printf("tig version %s\n", TIG_VERSION);
757 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
758 printf("%s\n", usage);
762 opt_cmd[buf_size++] = ' ';
763 buf_size = sq_quote(opt_cmd, buf_size, opt);
764 if (buf_size >= sizeof(opt_cmd))
765 die("command too long");
768 opt_cmd[buf_size] = 0;
775 * Line-oriented content detection.
779 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
780 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
781 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
782 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
783 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
784 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
785 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
786 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
787 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
788 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
789 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
790 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
791 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
792 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
793 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
794 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
795 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
796 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
797 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
798 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
799 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
800 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
801 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
802 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
803 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
804 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
805 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
806 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
807 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
808 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
809 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
810 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
811 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
812 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
813 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
814 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
815 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
816 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
817 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
818 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
819 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
820 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
821 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
822 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
823 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
824 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
825 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
826 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
827 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
828 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
829 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
830 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
831 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
832 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
835 #define LINE(type, line, fg, bg, attr) \
843 const char *name; /* Option name. */
844 int namelen; /* Size of option name. */
845 const char *line; /* The start of line to match. */
846 int linelen; /* Size of string to match. */
847 int fg, bg, attr; /* Color and text attributes for the lines. */
850 static struct line_info line_info[] = {
851 #define LINE(type, line, fg, bg, attr) \
852 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
857 static enum line_type
858 get_line_type(const char *line)
860 int linelen = strlen(line);
863 for (type = 0; type < ARRAY_SIZE(line_info); type++)
864 /* Case insensitive search matches Signed-off-by lines better. */
865 if (linelen >= line_info[type].linelen &&
866 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
873 get_line_attr(enum line_type type)
875 assert(type < ARRAY_SIZE(line_info));
876 return COLOR_PAIR(type) | line_info[type].attr;
879 static struct line_info *
880 get_line_info(const char *name)
882 size_t namelen = strlen(name);
885 for (type = 0; type < ARRAY_SIZE(line_info); type++)
886 if (namelen == line_info[type].namelen &&
887 !string_enum_compare(line_info[type].name, name, namelen))
888 return &line_info[type];
896 int default_bg = line_info[LINE_DEFAULT].bg;
897 int default_fg = line_info[LINE_DEFAULT].fg;
902 if (assume_default_colors(default_fg, default_bg) == ERR) {
903 default_bg = COLOR_BLACK;
904 default_fg = COLOR_WHITE;
907 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
908 struct line_info *info = &line_info[type];
909 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
910 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
912 init_pair(type, fg, bg);
920 unsigned int selected:1;
921 unsigned int dirty:1;
923 void *data; /* User data */
933 enum request request;
936 static struct keybinding default_keybindings[] = {
938 { 'm', REQ_VIEW_MAIN },
939 { 'd', REQ_VIEW_DIFF },
940 { 'l', REQ_VIEW_LOG },
941 { 't', REQ_VIEW_TREE },
942 { 'f', REQ_VIEW_BLOB },
943 { 'B', REQ_VIEW_BLAME },
944 { 'p', REQ_VIEW_PAGER },
945 { 'h', REQ_VIEW_HELP },
946 { 'S', REQ_VIEW_STATUS },
947 { 'c', REQ_VIEW_STAGE },
949 /* View manipulation */
950 { 'q', REQ_VIEW_CLOSE },
951 { KEY_TAB, REQ_VIEW_NEXT },
952 { KEY_RETURN, REQ_ENTER },
953 { KEY_UP, REQ_PREVIOUS },
954 { KEY_DOWN, REQ_NEXT },
955 { 'R', REQ_REFRESH },
956 { KEY_F(5), REQ_REFRESH },
957 { 'O', REQ_MAXIMIZE },
959 /* Cursor navigation */
960 { 'k', REQ_MOVE_UP },
961 { 'j', REQ_MOVE_DOWN },
962 { KEY_HOME, REQ_MOVE_FIRST_LINE },
963 { KEY_END, REQ_MOVE_LAST_LINE },
964 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
965 { ' ', REQ_MOVE_PAGE_DOWN },
966 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
967 { 'b', REQ_MOVE_PAGE_UP },
968 { '-', REQ_MOVE_PAGE_UP },
971 { KEY_IC, REQ_SCROLL_LINE_UP },
972 { KEY_DC, REQ_SCROLL_LINE_DOWN },
973 { 'w', REQ_SCROLL_PAGE_UP },
974 { 's', REQ_SCROLL_PAGE_DOWN },
978 { '?', REQ_SEARCH_BACK },
979 { 'n', REQ_FIND_NEXT },
980 { 'N', REQ_FIND_PREV },
984 { 'z', REQ_STOP_LOADING },
985 { 'v', REQ_SHOW_VERSION },
986 { 'r', REQ_SCREEN_REDRAW },
987 { '.', REQ_TOGGLE_LINENO },
988 { 'D', REQ_TOGGLE_DATE },
989 { 'A', REQ_TOGGLE_AUTHOR },
990 { 'g', REQ_TOGGLE_REV_GRAPH },
991 { 'F', REQ_TOGGLE_REFS },
993 { 'u', REQ_STATUS_UPDATE },
994 { '!', REQ_STATUS_REVERT },
995 { 'M', REQ_STATUS_MERGE },
996 { '@', REQ_STAGE_NEXT },
997 { ',', REQ_TREE_PARENT },
1000 /* Using the ncurses SIGWINCH handler. */
1001 { KEY_RESIZE, REQ_SCREEN_RESIZE },
1004 #define KEYMAP_INFO \
1018 #define KEYMAP_(name) KEYMAP_##name
1023 static struct int_map keymap_table[] = {
1024 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
1029 #define set_keymap(map, name) \
1030 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
1032 struct keybinding_table {
1033 struct keybinding *data;
1037 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
1040 add_keybinding(enum keymap keymap, enum request request, int key)
1042 struct keybinding_table *table = &keybindings[keymap];
1044 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
1046 die("Failed to allocate keybinding");
1047 table->data[table->size].alias = key;
1048 table->data[table->size++].request = request;
1051 /* Looks for a key binding first in the given map, then in the generic map, and
1052 * lastly in the default keybindings. */
1054 get_keybinding(enum keymap keymap, int key)
1058 for (i = 0; i < keybindings[keymap].size; i++)
1059 if (keybindings[keymap].data[i].alias == key)
1060 return keybindings[keymap].data[i].request;
1062 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
1063 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
1064 return keybindings[KEYMAP_GENERIC].data[i].request;
1066 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
1067 if (default_keybindings[i].alias == key)
1068 return default_keybindings[i].request;
1070 return (enum request) key;
1079 static struct key key_table[] = {
1080 { "Enter", KEY_RETURN },
1082 { "Backspace", KEY_BACKSPACE },
1084 { "Escape", KEY_ESC },
1085 { "Left", KEY_LEFT },
1086 { "Right", KEY_RIGHT },
1088 { "Down", KEY_DOWN },
1089 { "Insert", KEY_IC },
1090 { "Delete", KEY_DC },
1092 { "Home", KEY_HOME },
1094 { "PageUp", KEY_PPAGE },
1095 { "PageDown", KEY_NPAGE },
1105 { "F10", KEY_F(10) },
1106 { "F11", KEY_F(11) },
1107 { "F12", KEY_F(12) },
1111 get_key_value(const char *name)
1115 for (i = 0; i < ARRAY_SIZE(key_table); i++)
1116 if (!strcasecmp(key_table[i].name, name))
1117 return key_table[i].value;
1119 if (strlen(name) == 1 && isprint(*name))
1126 get_key_name(int key_value)
1128 static char key_char[] = "'X'";
1129 const char *seq = NULL;
1132 for (key = 0; key < ARRAY_SIZE(key_table); key++)
1133 if (key_table[key].value == key_value)
1134 seq = key_table[key].name;
1138 isprint(key_value)) {
1139 key_char[1] = (char) key_value;
1143 return seq ? seq : "(no key)";
1147 get_key(enum request request)
1149 static char buf[BUFSIZ];
1156 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1157 struct keybinding *keybinding = &default_keybindings[i];
1159 if (keybinding->request != request)
1162 if (!string_format_from(buf, &pos, "%s%s", sep,
1163 get_key_name(keybinding->alias)))
1164 return "Too many keybindings!";
1171 struct run_request {
1174 const char *argv[SIZEOF_ARG];
1177 static struct run_request *run_request;
1178 static size_t run_requests;
1181 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
1183 struct run_request *req;
1185 if (argc >= ARRAY_SIZE(req->argv) - 1)
1188 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1193 req = &run_request[run_requests];
1194 req->keymap = keymap;
1196 req->argv[0] = NULL;
1198 if (!format_argv(req->argv, argv, FORMAT_NONE))
1201 return REQ_NONE + ++run_requests;
1204 static struct run_request *
1205 get_run_request(enum request request)
1207 if (request <= REQ_NONE)
1209 return &run_request[request - REQ_NONE - 1];
1213 add_builtin_run_requests(void)
1215 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
1216 const char *gc[] = { "git", "gc", NULL };
1223 { KEYMAP_MAIN, 'C', ARRAY_SIZE(cherry_pick) - 1, cherry_pick },
1224 { KEYMAP_GENERIC, 'G', ARRAY_SIZE(gc) - 1, gc },
1228 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1231 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argc, reqs[i].argv);
1232 if (req != REQ_NONE)
1233 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1238 * User config file handling.
1241 static struct int_map color_map[] = {
1242 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1254 #define set_color(color, name) \
1255 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1257 static struct int_map attr_map[] = {
1258 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1265 ATTR_MAP(UNDERLINE),
1268 #define set_attribute(attr, name) \
1269 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1271 static int config_lineno;
1272 static bool config_errors;
1273 static const char *config_msg;
1275 /* Wants: object fgcolor bgcolor [attr] */
1277 option_color_command(int argc, const char *argv[])
1279 struct line_info *info;
1281 if (argc != 3 && argc != 4) {
1282 config_msg = "Wrong number of arguments given to color command";
1286 info = get_line_info(argv[0]);
1288 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1289 info = get_line_info("delimiter");
1291 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1292 info = get_line_info("date");
1295 config_msg = "Unknown color name";
1300 if (set_color(&info->fg, argv[1]) == ERR ||
1301 set_color(&info->bg, argv[2]) == ERR) {
1302 config_msg = "Unknown color";
1306 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1307 config_msg = "Unknown attribute";
1314 static bool parse_bool(const char *s)
1316 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1317 !strcmp(s, "yes")) ? TRUE : FALSE;
1321 parse_int(const char *s, int default_value, int min, int max)
1323 int value = atoi(s);
1325 return (value < min || value > max) ? default_value : value;
1328 /* Wants: name = value */
1330 option_set_command(int argc, const char *argv[])
1333 config_msg = "Wrong number of arguments given to set command";
1337 if (strcmp(argv[1], "=")) {
1338 config_msg = "No value assigned";
1342 if (!strcmp(argv[0], "show-author")) {
1343 opt_author = parse_bool(argv[2]);
1347 if (!strcmp(argv[0], "show-date")) {
1348 opt_date = parse_bool(argv[2]);
1352 if (!strcmp(argv[0], "show-rev-graph")) {
1353 opt_rev_graph = parse_bool(argv[2]);
1357 if (!strcmp(argv[0], "show-refs")) {
1358 opt_show_refs = parse_bool(argv[2]);
1362 if (!strcmp(argv[0], "show-line-numbers")) {
1363 opt_line_number = parse_bool(argv[2]);
1367 if (!strcmp(argv[0], "line-graphics")) {
1368 opt_line_graphics = parse_bool(argv[2]);
1372 if (!strcmp(argv[0], "line-number-interval")) {
1373 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1377 if (!strcmp(argv[0], "author-width")) {
1378 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1382 if (!strcmp(argv[0], "tab-size")) {
1383 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1387 if (!strcmp(argv[0], "commit-encoding")) {
1388 const char *arg = argv[2];
1389 int arglen = strlen(arg);
1394 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1395 config_msg = "Unmatched quotation";
1398 arg += 1; arglen -= 2;
1400 string_ncopy(opt_encoding, arg, strlen(arg));
1405 config_msg = "Unknown variable name";
1409 /* Wants: mode request key */
1411 option_bind_command(int argc, const char *argv[])
1413 enum request request;
1418 config_msg = "Wrong number of arguments given to bind command";
1422 if (set_keymap(&keymap, argv[0]) == ERR) {
1423 config_msg = "Unknown key map";
1427 key = get_key_value(argv[1]);
1429 config_msg = "Unknown key";
1433 request = get_request(argv[2]);
1434 if (request == REQ_NONE) {
1435 const char *obsolete[] = { "cherry-pick" };
1436 size_t namelen = strlen(argv[2]);
1439 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1440 if (namelen == strlen(obsolete[i]) &&
1441 !string_enum_compare(obsolete[i], argv[2], namelen)) {
1442 config_msg = "Obsolete request name";
1447 if (request == REQ_NONE && *argv[2]++ == '!')
1448 request = add_run_request(keymap, key, argc - 2, argv + 2);
1449 if (request == REQ_NONE) {
1450 config_msg = "Unknown request name";
1454 add_keybinding(keymap, request, key);
1460 set_option(const char *opt, char *value)
1462 const char *argv[SIZEOF_ARG];
1465 if (!argv_from_string(argv, &argc, value)) {
1466 config_msg = "Too many option arguments";
1470 if (!strcmp(opt, "color"))
1471 return option_color_command(argc, argv);
1473 if (!strcmp(opt, "set"))
1474 return option_set_command(argc, argv);
1476 if (!strcmp(opt, "bind"))
1477 return option_bind_command(argc, argv);
1479 config_msg = "Unknown option command";
1484 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1489 config_msg = "Internal error";
1491 /* Check for comment markers, since read_properties() will
1492 * only ensure opt and value are split at first " \t". */
1493 optlen = strcspn(opt, "#");
1497 if (opt[optlen] != 0) {
1498 config_msg = "No option value";
1502 /* Look for comment endings in the value. */
1503 size_t len = strcspn(value, "#");
1505 if (len < valuelen) {
1507 value[valuelen] = 0;
1510 status = set_option(opt, value);
1513 if (status == ERR) {
1514 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1515 config_lineno, (int) optlen, opt, config_msg);
1516 config_errors = TRUE;
1519 /* Always keep going if errors are encountered. */
1524 load_option_file(const char *path)
1528 /* It's ok that the file doesn't exist. */
1529 file = fopen(path, "r");
1534 config_errors = FALSE;
1536 if (read_properties(file, " \t", read_option) == ERR ||
1537 config_errors == TRUE)
1538 fprintf(stderr, "Errors while loading %s.\n", path);
1544 const char *home = getenv("HOME");
1545 const char *tigrc_user = getenv("TIGRC_USER");
1546 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1547 char buf[SIZEOF_STR];
1549 add_builtin_run_requests();
1551 if (!tigrc_system) {
1552 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1556 load_option_file(tigrc_system);
1559 if (!home || !string_format(buf, "%s/.tigrc", home))
1563 load_option_file(tigrc_user);
1576 /* The display array of active views and the index of the current view. */
1577 static struct view *display[2];
1578 static unsigned int current_view;
1580 /* Reading from the prompt? */
1581 static bool input_mode = FALSE;
1583 #define foreach_displayed_view(view, i) \
1584 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1586 #define displayed_views() (display[1] != NULL ? 2 : 1)
1588 /* Current head and commit ID */
1589 static char ref_blob[SIZEOF_REF] = "";
1590 static char ref_commit[SIZEOF_REF] = "HEAD";
1591 static char ref_head[SIZEOF_REF] = "HEAD";
1594 const char *name; /* View name */
1595 const char *cmd_env; /* Command line set via environment */
1596 const char *id; /* Points to either of ref_{head,commit,blob} */
1598 struct view_ops *ops; /* View operations */
1600 enum keymap keymap; /* What keymap does this view have */
1601 bool git_dir; /* Whether the view requires a git directory. */
1603 char ref[SIZEOF_REF]; /* Hovered commit reference */
1604 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1606 int height, width; /* The width and height of the main window */
1607 WINDOW *win; /* The main window */
1608 WINDOW *title; /* The title window living below the main window */
1611 unsigned long offset; /* Offset of the window top */
1612 unsigned long lineno; /* Current line number */
1615 char grep[SIZEOF_STR]; /* Search string */
1616 regex_t *regex; /* Pre-compiled regex */
1618 /* If non-NULL, points to the view that opened this view. If this view
1619 * is closed tig will switch back to the parent view. */
1620 struct view *parent;
1623 size_t lines; /* Total number of lines */
1624 struct line *line; /* Line index */
1625 size_t line_alloc; /* Total number of allocated lines */
1626 size_t line_size; /* Total number of used lines */
1627 unsigned int digits; /* Number of digits in the lines member. */
1630 struct line *curline; /* Line currently being drawn. */
1631 enum line_type curtype; /* Attribute currently used for drawing. */
1632 unsigned long col; /* Column when drawing. */
1641 /* What type of content being displayed. Used in the title bar. */
1643 /* Default command arguments. */
1645 /* Open and reads in all view content. */
1646 bool (*open)(struct view *view);
1647 /* Read one line; updates view->line. */
1648 bool (*read)(struct view *view, char *data);
1649 /* Draw one line; @lineno must be < view->height. */
1650 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1651 /* Depending on view handle a special requests. */
1652 enum request (*request)(struct view *view, enum request request, struct line *line);
1653 /* Search for regex in a line. */
1654 bool (*grep)(struct view *view, struct line *line);
1656 void (*select)(struct view *view, struct line *line);
1659 static struct view_ops blame_ops;
1660 static struct view_ops blob_ops;
1661 static struct view_ops diff_ops;
1662 static struct view_ops help_ops;
1663 static struct view_ops log_ops;
1664 static struct view_ops main_ops;
1665 static struct view_ops pager_ops;
1666 static struct view_ops stage_ops;
1667 static struct view_ops status_ops;
1668 static struct view_ops tree_ops;
1670 #define VIEW_STR(name, env, ref, ops, map, git) \
1671 { name, #env, ref, ops, map, git }
1673 #define VIEW_(id, name, ops, git, ref) \
1674 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1677 static struct view views[] = {
1678 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1679 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1680 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1681 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1682 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1683 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1684 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1685 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1686 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1687 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1690 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1691 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1693 #define foreach_view(view, i) \
1694 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1696 #define view_is_displayed(view) \
1697 (view == display[0] || view == display[1])
1704 static int line_graphics[] = {
1705 /* LINE_GRAPHIC_VLINE: */ '|'
1709 set_view_attr(struct view *view, enum line_type type)
1711 if (!view->curline->selected && view->curtype != type) {
1712 wattrset(view->win, get_line_attr(type));
1713 wchgat(view->win, -1, 0, type, NULL);
1714 view->curtype = type;
1719 draw_chars(struct view *view, enum line_type type, const char *string,
1720 int max_len, bool use_tilde)
1724 int trimmed = FALSE;
1730 len = utf8_length(string, &col, max_len, &trimmed, use_tilde);
1732 col = len = strlen(string);
1733 if (len > max_len) {
1737 col = len = max_len;
1742 set_view_attr(view, type);
1743 waddnstr(view->win, string, len);
1744 if (trimmed && use_tilde) {
1745 set_view_attr(view, LINE_DELIMITER);
1746 waddch(view->win, '~');
1754 draw_space(struct view *view, enum line_type type, int max, int spaces)
1756 static char space[] = " ";
1759 spaces = MIN(max, spaces);
1761 while (spaces > 0) {
1762 int len = MIN(spaces, sizeof(space) - 1);
1764 col += draw_chars(view, type, space, spaces, FALSE);
1772 draw_lineno(struct view *view, unsigned int lineno)
1775 int digits3 = view->digits < 3 ? 3 : view->digits;
1776 int max_number = MIN(digits3, STRING_SIZE(number));
1777 int max = view->width - view->col;
1780 if (max < max_number)
1783 lineno += view->offset + 1;
1784 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1785 static char fmt[] = "%1ld";
1787 if (view->digits <= 9)
1788 fmt[1] = '0' + digits3;
1790 if (!string_format(number, fmt, lineno))
1792 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1794 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1798 set_view_attr(view, LINE_DEFAULT);
1799 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1804 col += draw_space(view, LINE_DEFAULT, max - col, 1);
1807 return view->width - view->col <= 0;
1811 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1813 view->col += draw_chars(view, type, string, view->width - view->col, trim);
1814 return view->width - view->col <= 0;
1818 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1820 int max = view->width - view->col;
1826 set_view_attr(view, type);
1827 /* Using waddch() instead of waddnstr() ensures that
1828 * they'll be rendered correctly for the cursor line. */
1829 for (i = 0; i < size; i++)
1830 waddch(view->win, graphic[i]);
1834 waddch(view->win, ' ');
1838 return view->width - view->col <= 0;
1842 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1844 int max = MIN(view->width - view->col, len);
1848 col = draw_chars(view, type, text, max - 1, trim);
1850 col = draw_space(view, type, max - 1, max - 1);
1852 view->col += col + draw_space(view, LINE_DEFAULT, max - col, max - col);
1853 return view->width - view->col <= 0;
1857 draw_date(struct view *view, struct tm *time)
1859 char buf[DATE_COLS];
1864 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1865 date = timelen ? buf : NULL;
1867 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
1871 draw_view_line(struct view *view, unsigned int lineno)
1874 bool selected = (view->offset + lineno == view->lineno);
1877 assert(view_is_displayed(view));
1879 if (view->offset + lineno >= view->lines)
1882 line = &view->line[view->offset + lineno];
1884 wmove(view->win, lineno, 0);
1886 view->curline = line;
1887 view->curtype = LINE_NONE;
1888 line->selected = FALSE;
1891 set_view_attr(view, LINE_CURSOR);
1892 line->selected = TRUE;
1893 view->ops->select(view, line);
1894 } else if (line->selected) {
1895 wclrtoeol(view->win);
1898 scrollok(view->win, FALSE);
1899 draw_ok = view->ops->draw(view, line, lineno);
1900 scrollok(view->win, TRUE);
1906 redraw_view_dirty(struct view *view)
1911 for (lineno = 0; lineno < view->height; lineno++) {
1912 struct line *line = &view->line[view->offset + lineno];
1918 if (!draw_view_line(view, lineno))
1924 redrawwin(view->win);
1926 wnoutrefresh(view->win);
1928 wrefresh(view->win);
1932 redraw_view_from(struct view *view, int lineno)
1934 assert(0 <= lineno && lineno < view->height);
1936 for (; lineno < view->height; lineno++) {
1937 if (!draw_view_line(view, lineno))
1941 redrawwin(view->win);
1943 wnoutrefresh(view->win);
1945 wrefresh(view->win);
1949 redraw_view(struct view *view)
1952 redraw_view_from(view, 0);
1957 update_view_title(struct view *view)
1959 char buf[SIZEOF_STR];
1960 char state[SIZEOF_STR];
1961 size_t bufpos = 0, statelen = 0;
1963 assert(view_is_displayed(view));
1965 if (view != VIEW(REQ_VIEW_STATUS) && (view->lines || view->pipe)) {
1966 unsigned int view_lines = view->offset + view->height;
1967 unsigned int lines = view->lines
1968 ? MIN(view_lines, view->lines) * 100 / view->lines
1971 string_format_from(state, &statelen, "- %s %d of %d (%d%%)",
1978 time_t secs = time(NULL) - view->start_time;
1980 /* Three git seconds are a long time ... */
1982 string_format_from(state, &statelen, " %lds", secs);
1986 string_format_from(buf, &bufpos, "[%s]", view->name);
1987 if (*view->ref && bufpos < view->width) {
1988 size_t refsize = strlen(view->ref);
1989 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
1991 if (minsize < view->width)
1992 refsize = view->width - minsize + 7;
1993 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
1996 if (statelen && bufpos < view->width) {
1997 string_format_from(buf, &bufpos, " %s", state);
2000 if (view == display[current_view])
2001 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2003 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2005 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2006 wclrtoeol(view->title);
2007 wmove(view->title, 0, view->width - 1);
2010 wnoutrefresh(view->title);
2012 wrefresh(view->title);
2016 resize_display(void)
2019 struct view *base = display[0];
2020 struct view *view = display[1] ? display[1] : display[0];
2022 /* Setup window dimensions */
2024 getmaxyx(stdscr, base->height, base->width);
2026 /* Make room for the status window. */
2030 /* Horizontal split. */
2031 view->width = base->width;
2032 view->height = SCALE_SPLIT_VIEW(base->height);
2033 base->height -= view->height;
2035 /* Make room for the title bar. */
2039 /* Make room for the title bar. */
2044 foreach_displayed_view (view, i) {
2046 view->win = newwin(view->height, 0, offset, 0);
2048 die("Failed to create %s view", view->name);
2050 scrollok(view->win, TRUE);
2052 view->title = newwin(1, 0, offset + view->height, 0);
2054 die("Failed to create title window");
2057 wresize(view->win, view->height, view->width);
2058 mvwin(view->win, offset, 0);
2059 mvwin(view->title, offset + view->height, 0);
2062 offset += view->height + 1;
2067 redraw_display(void)
2072 foreach_displayed_view (view, i) {
2074 update_view_title(view);
2079 update_display_cursor(struct view *view)
2081 /* Move the cursor to the right-most column of the cursor line.
2083 * XXX: This could turn out to be a bit expensive, but it ensures that
2084 * the cursor does not jump around. */
2086 wmove(view->win, view->lineno - view->offset, view->width - 1);
2087 wrefresh(view->win);
2095 /* Scrolling backend */
2097 do_scroll_view(struct view *view, int lines)
2099 bool redraw_current_line = FALSE;
2101 /* The rendering expects the new offset. */
2102 view->offset += lines;
2104 assert(0 <= view->offset && view->offset < view->lines);
2107 /* Move current line into the view. */
2108 if (view->lineno < view->offset) {
2109 view->lineno = view->offset;
2110 redraw_current_line = TRUE;
2111 } else if (view->lineno >= view->offset + view->height) {
2112 view->lineno = view->offset + view->height - 1;
2113 redraw_current_line = TRUE;
2116 assert(view->offset <= view->lineno && view->lineno < view->lines);
2118 /* Redraw the whole screen if scrolling is pointless. */
2119 if (view->height < ABS(lines)) {
2123 int line = lines > 0 ? view->height - lines : 0;
2124 int end = line + ABS(lines);
2126 wscrl(view->win, lines);
2128 for (; line < end; line++) {
2129 if (!draw_view_line(view, line))
2133 if (redraw_current_line)
2134 draw_view_line(view, view->lineno - view->offset);
2137 redrawwin(view->win);
2138 wrefresh(view->win);
2142 /* Scroll frontend */
2144 scroll_view(struct view *view, enum request request)
2148 assert(view_is_displayed(view));
2151 case REQ_SCROLL_PAGE_DOWN:
2152 lines = view->height;
2153 case REQ_SCROLL_LINE_DOWN:
2154 if (view->offset + lines > view->lines)
2155 lines = view->lines - view->offset;
2157 if (lines == 0 || view->offset + view->height >= view->lines) {
2158 report("Cannot scroll beyond the last line");
2163 case REQ_SCROLL_PAGE_UP:
2164 lines = view->height;
2165 case REQ_SCROLL_LINE_UP:
2166 if (lines > view->offset)
2167 lines = view->offset;
2170 report("Cannot scroll beyond the first line");
2178 die("request %d not handled in switch", request);
2181 do_scroll_view(view, lines);
2186 move_view(struct view *view, enum request request)
2188 int scroll_steps = 0;
2192 case REQ_MOVE_FIRST_LINE:
2193 steps = -view->lineno;
2196 case REQ_MOVE_LAST_LINE:
2197 steps = view->lines - view->lineno - 1;
2200 case REQ_MOVE_PAGE_UP:
2201 steps = view->height > view->lineno
2202 ? -view->lineno : -view->height;
2205 case REQ_MOVE_PAGE_DOWN:
2206 steps = view->lineno + view->height >= view->lines
2207 ? view->lines - view->lineno - 1 : view->height;
2219 die("request %d not handled in switch", request);
2222 if (steps <= 0 && view->lineno == 0) {
2223 report("Cannot move beyond the first line");
2226 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2227 report("Cannot move beyond the last line");
2231 /* Move the current line */
2232 view->lineno += steps;
2233 assert(0 <= view->lineno && view->lineno < view->lines);
2235 /* Check whether the view needs to be scrolled */
2236 if (view->lineno < view->offset ||
2237 view->lineno >= view->offset + view->height) {
2238 scroll_steps = steps;
2239 if (steps < 0 && -steps > view->offset) {
2240 scroll_steps = -view->offset;
2242 } else if (steps > 0) {
2243 if (view->lineno == view->lines - 1 &&
2244 view->lines > view->height) {
2245 scroll_steps = view->lines - view->offset - 1;
2246 if (scroll_steps >= view->height)
2247 scroll_steps -= view->height - 1;
2252 if (!view_is_displayed(view)) {
2253 view->offset += scroll_steps;
2254 assert(0 <= view->offset && view->offset < view->lines);
2255 view->ops->select(view, &view->line[view->lineno]);
2259 /* Repaint the old "current" line if we be scrolling */
2260 if (ABS(steps) < view->height)
2261 draw_view_line(view, view->lineno - steps - view->offset);
2264 do_scroll_view(view, scroll_steps);
2268 /* Draw the current line */
2269 draw_view_line(view, view->lineno - view->offset);
2271 redrawwin(view->win);
2272 wrefresh(view->win);
2281 static void search_view(struct view *view, enum request request);
2284 find_next_line(struct view *view, unsigned long lineno, struct line *line)
2286 assert(view_is_displayed(view));
2288 if (!view->ops->grep(view, line))
2291 if (lineno - view->offset >= view->height) {
2292 view->offset = lineno;
2293 view->lineno = lineno;
2297 unsigned long old_lineno = view->lineno - view->offset;
2299 view->lineno = lineno;
2300 draw_view_line(view, old_lineno);
2302 draw_view_line(view, view->lineno - view->offset);
2303 redrawwin(view->win);
2304 wrefresh(view->win);
2307 report("Line %ld matches '%s'", lineno + 1, view->grep);
2312 find_next(struct view *view, enum request request)
2314 unsigned long lineno = view->lineno;
2319 report("No previous search");
2321 search_view(view, request);
2331 case REQ_SEARCH_BACK:
2340 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2341 lineno += direction;
2343 /* Note, lineno is unsigned long so will wrap around in which case it
2344 * will become bigger than view->lines. */
2345 for (; lineno < view->lines; lineno += direction) {
2346 struct line *line = &view->line[lineno];
2348 if (find_next_line(view, lineno, line))
2352 report("No match found for '%s'", view->grep);
2356 search_view(struct view *view, enum request request)
2361 regfree(view->regex);
2364 view->regex = calloc(1, sizeof(*view->regex));
2369 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2370 if (regex_err != 0) {
2371 char buf[SIZEOF_STR] = "unknown error";
2373 regerror(regex_err, view->regex, buf, sizeof(buf));
2374 report("Search failed: %s", buf);
2378 string_copy(view->grep, opt_search);
2380 find_next(view, request);
2384 * Incremental updating
2388 reset_view(struct view *view)
2392 for (i = 0; i < view->lines; i++)
2393 free(view->line[i].data);
2400 view->line_size = 0;
2401 view->line_alloc = 0;
2406 free_argv(const char *argv[])
2410 for (argc = 0; argv[argc]; argc++)
2411 free((void *) argv[argc]);
2415 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2417 char buf[SIZEOF_STR];
2419 bool noreplace = flags == FORMAT_NONE;
2421 free_argv(dst_argv);
2423 for (argc = 0; src_argv[argc]; argc++) {
2424 const char *arg = src_argv[argc];
2428 char *next = strstr(arg, "%(");
2429 int len = next - arg;
2432 if (!next || noreplace) {
2433 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2438 } else if (!prefixcmp(next, "%(directory)")) {
2441 } else if (!prefixcmp(next, "%(file)")) {
2444 } else if (!prefixcmp(next, "%(ref)")) {
2445 value = *opt_ref ? opt_ref : "HEAD";
2447 } else if (!prefixcmp(next, "%(head)")) {
2450 } else if (!prefixcmp(next, "%(commit)")) {
2453 } else if (!prefixcmp(next, "%(blob)")) {
2457 report("Unknown replacement: `%s`", next);
2461 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2464 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2467 dst_argv[argc] = strdup(buf);
2468 if (!dst_argv[argc])
2472 dst_argv[argc] = NULL;
2474 return src_argv[argc] == NULL;
2478 format_command(char dst[], const char *src_argv[], enum format_flags flags)
2480 const char *dst_argv[SIZEOF_ARG * 2] = { NULL };
2484 if (!format_argv(dst_argv, src_argv, flags)) {
2485 free_argv(dst_argv);
2489 for (argc = 0; dst_argv[argc] && bufsize < SIZEOF_STR; argc++) {
2491 dst[bufsize++] = ' ';
2492 bufsize = sq_quote(dst, bufsize, dst_argv[argc]);
2495 if (bufsize < SIZEOF_STR)
2497 free_argv(dst_argv);
2499 return src_argv[argc] == NULL && bufsize < SIZEOF_STR;
2503 end_update(struct view *view, bool force)
2507 while (!view->ops->read(view, NULL))
2510 set_nonblocking_input(FALSE);
2511 done_io(view->pipe);
2516 setup_update(struct view *view, const char *vid)
2518 set_nonblocking_input(TRUE);
2520 string_copy_rev(view->vid, vid);
2521 view->pipe = &view->io;
2522 view->start_time = time(NULL);
2526 prepare_update(struct view *view, const char *argv[], const char *dir,
2527 enum format_flags flags)
2530 end_update(view, TRUE);
2531 return init_io_rd(&view->io, argv, dir, flags);
2535 begin_update(struct view *view, bool refresh)
2537 if (init_io_fd(&view->io, opt_pipe)) {
2540 } else if (opt_cmd[0]) {
2541 if (!run_io(&view->io, IO_RD, opt_cmd))
2546 } else if (refresh) {
2547 if (!start_io(&view->io))
2551 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2554 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2557 /* Put the current ref_* value to the view title ref
2558 * member. This is needed by the blob view. Most other
2559 * views sets it automatically after loading because the
2560 * first line is a commit line. */
2561 string_copy_rev(view->ref, view->id);
2564 setup_update(view, view->id);
2569 #define ITEM_CHUNK_SIZE 256
2571 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2573 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2574 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2576 if (mem == NULL || num_chunks != num_chunks_new) {
2577 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2578 mem = realloc(mem, *size * item_size);
2584 static struct line *
2585 realloc_lines(struct view *view, size_t line_size)
2587 size_t alloc = view->line_alloc;
2588 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2589 sizeof(*view->line));
2595 view->line_alloc = alloc;
2596 view->line_size = line_size;
2601 update_view(struct view *view)
2603 char out_buffer[BUFSIZ * 2];
2605 /* The number of lines to read. If too low it will cause too much
2606 * redrawing (and possible flickering), if too high responsiveness
2608 unsigned long lines = view->height;
2609 int redraw_from = -1;
2614 /* Only redraw if lines are visible. */
2615 if (view->offset + view->height >= view->lines)
2616 redraw_from = view->lines - view->offset;
2618 /* FIXME: This is probably not perfect for backgrounded views. */
2619 if (!realloc_lines(view, view->lines + lines))
2622 while ((line = io_gets(view->pipe))) {
2623 size_t linelen = strlen(line);
2626 line[linelen - 1] = 0;
2628 if (opt_iconv != ICONV_NONE) {
2629 ICONV_CONST char *inbuf = line;
2630 size_t inlen = linelen;
2632 char *outbuf = out_buffer;
2633 size_t outlen = sizeof(out_buffer);
2637 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2638 if (ret != (size_t) -1) {
2640 linelen = strlen(out_buffer);
2644 if (!view->ops->read(view, line))
2654 lines = view->lines;
2655 for (digits = 0; lines; digits++)
2658 /* Keep the displayed view in sync with line number scaling. */
2659 if (digits != view->digits) {
2660 view->digits = digits;
2665 if (io_error(view->pipe)) {
2666 report("Failed to read: %s", io_strerror(view->pipe));
2667 end_update(view, TRUE);
2669 } else if (io_eof(view->pipe)) {
2671 end_update(view, FALSE);
2674 if (!view_is_displayed(view))
2677 if (view == VIEW(REQ_VIEW_TREE)) {
2678 /* Clear the view and redraw everything since the tree sorting
2679 * might have rearranged things. */
2682 } else if (redraw_from >= 0) {
2683 /* If this is an incremental update, redraw the previous line
2684 * since for commits some members could have changed when
2685 * loading the main view. */
2686 if (redraw_from > 0)
2689 /* Since revision graph visualization requires knowledge
2690 * about the parent commit, it causes a further one-off
2691 * needed to be redrawn for incremental updates. */
2692 if (redraw_from > 0 && opt_rev_graph)
2695 /* Incrementally draw avoids flickering. */
2696 redraw_view_from(view, redraw_from);
2699 if (view == VIEW(REQ_VIEW_BLAME))
2700 redraw_view_dirty(view);
2702 /* Update the title _after_ the redraw so that if the redraw picks up a
2703 * commit reference in view->ref it'll be available here. */
2704 update_view_title(view);
2708 report("Allocation failure");
2709 end_update(view, TRUE);
2713 static struct line *
2714 add_line_data(struct view *view, void *data, enum line_type type)
2716 struct line *line = &view->line[view->lines++];
2718 memset(line, 0, sizeof(*line));
2725 static struct line *
2726 add_line_text(struct view *view, const char *text, enum line_type type)
2728 char *data = text ? strdup(text) : NULL;
2730 return data ? add_line_data(view, data, type) : NULL;
2739 OPEN_DEFAULT = 0, /* Use default view switching. */
2740 OPEN_SPLIT = 1, /* Split current view. */
2741 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2742 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2743 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2744 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2745 OPEN_PREPARED = 32, /* Open already prepared command. */
2749 open_view(struct view *prev, enum request request, enum open_flags flags)
2751 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2752 bool split = !!(flags & OPEN_SPLIT);
2753 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2754 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2755 struct view *view = VIEW(request);
2756 int nviews = displayed_views();
2757 struct view *base_view = display[0];
2759 if (view == prev && nviews == 1 && !reload) {
2760 report("Already in %s view", view->name);
2764 if (view->git_dir && !opt_git_dir[0]) {
2765 report("The %s view is disabled in pager view", view->name);
2773 } else if (!nomaximize) {
2774 /* Maximize the current view. */
2775 memset(display, 0, sizeof(display));
2777 display[current_view] = view;
2780 /* Resize the view when switching between split- and full-screen,
2781 * or when switching between two different full-screen views. */
2782 if (nviews != displayed_views() ||
2783 (nviews == 1 && base_view != display[0]))
2787 end_update(view, TRUE);
2789 if (view->ops->open) {
2790 if (!view->ops->open(view)) {
2791 report("Failed to load %s view", view->name);
2795 } else if ((reload || strcmp(view->vid, view->id)) &&
2796 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2797 report("Failed to load %s view", view->name);
2801 if (split && prev->lineno - prev->offset >= prev->height) {
2802 /* Take the title line into account. */
2803 int lines = prev->lineno - prev->offset - prev->height + 1;
2805 /* Scroll the view that was split if the current line is
2806 * outside the new limited view. */
2807 do_scroll_view(prev, lines);
2810 if (prev && view != prev) {
2811 if (split && !backgrounded) {
2812 /* "Blur" the previous view. */
2813 update_view_title(prev);
2816 view->parent = prev;
2819 if (view->pipe && view->lines == 0) {
2820 /* Clear the old view and let the incremental updating refill
2824 } else if (view_is_displayed(view)) {
2829 /* If the view is backgrounded the above calls to report()
2830 * won't redraw the view title. */
2832 update_view_title(view);
2836 open_external_viewer(const char *argv[], const char *dir)
2838 def_prog_mode(); /* save current tty modes */
2839 endwin(); /* restore original tty modes */
2840 run_io_fg(argv, dir);
2841 fprintf(stderr, "Press Enter to continue");
2848 open_mergetool(const char *file)
2850 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
2852 open_external_viewer(mergetool_argv, NULL);
2856 open_editor(bool from_root, const char *file)
2858 const char *editor_argv[] = { "vi", file, NULL };
2861 editor = getenv("GIT_EDITOR");
2862 if (!editor && *opt_editor)
2863 editor = opt_editor;
2865 editor = getenv("VISUAL");
2867 editor = getenv("EDITOR");
2871 editor_argv[0] = editor;
2872 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
2876 open_run_request(enum request request)
2878 struct run_request *req = get_run_request(request);
2879 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
2882 report("Unknown run request");
2886 if (format_argv(argv, req->argv, FORMAT_ALL))
2887 open_external_viewer(argv, NULL);
2892 * User request switch noodle
2896 view_driver(struct view *view, enum request request)
2900 if (request == REQ_NONE) {
2905 if (request > REQ_NONE) {
2906 open_run_request(request);
2907 /* FIXME: When all views can refresh always do this. */
2908 if (view == VIEW(REQ_VIEW_STATUS) ||
2909 view == VIEW(REQ_VIEW_MAIN) ||
2910 view == VIEW(REQ_VIEW_LOG) ||
2911 view == VIEW(REQ_VIEW_STAGE))
2912 request = REQ_REFRESH;
2917 if (view && view->lines) {
2918 request = view->ops->request(view, request, &view->line[view->lineno]);
2919 if (request == REQ_NONE)
2926 case REQ_MOVE_PAGE_UP:
2927 case REQ_MOVE_PAGE_DOWN:
2928 case REQ_MOVE_FIRST_LINE:
2929 case REQ_MOVE_LAST_LINE:
2930 move_view(view, request);
2933 case REQ_SCROLL_LINE_DOWN:
2934 case REQ_SCROLL_LINE_UP:
2935 case REQ_SCROLL_PAGE_DOWN:
2936 case REQ_SCROLL_PAGE_UP:
2937 scroll_view(view, request);
2940 case REQ_VIEW_BLAME:
2942 report("No file chosen, press %s to open tree view",
2943 get_key(REQ_VIEW_TREE));
2946 open_view(view, request, OPEN_DEFAULT);
2951 report("No file chosen, press %s to open tree view",
2952 get_key(REQ_VIEW_TREE));
2955 open_view(view, request, OPEN_DEFAULT);
2958 case REQ_VIEW_PAGER:
2959 if (!opt_pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
2960 report("No pager content, press %s to run command from prompt",
2961 get_key(REQ_PROMPT));
2964 open_view(view, request, OPEN_DEFAULT);
2967 case REQ_VIEW_STAGE:
2968 if (!VIEW(REQ_VIEW_STAGE)->lines) {
2969 report("No stage content, press %s to open the status view and choose file",
2970 get_key(REQ_VIEW_STATUS));
2973 open_view(view, request, OPEN_DEFAULT);
2976 case REQ_VIEW_STATUS:
2977 if (opt_is_inside_work_tree == FALSE) {
2978 report("The status view requires a working tree");
2981 open_view(view, request, OPEN_DEFAULT);
2989 open_view(view, request, OPEN_DEFAULT);
2994 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
2996 if ((view == VIEW(REQ_VIEW_DIFF) &&
2997 view->parent == VIEW(REQ_VIEW_MAIN)) ||
2998 (view == VIEW(REQ_VIEW_DIFF) &&
2999 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3000 (view == VIEW(REQ_VIEW_STAGE) &&
3001 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3002 (view == VIEW(REQ_VIEW_BLOB) &&
3003 view->parent == VIEW(REQ_VIEW_TREE))) {
3006 view = view->parent;
3007 line = view->lineno;
3008 move_view(view, request);
3009 if (view_is_displayed(view))
3010 update_view_title(view);
3011 if (line != view->lineno)
3012 view->ops->request(view, REQ_ENTER,
3013 &view->line[view->lineno]);
3016 move_view(view, request);
3022 int nviews = displayed_views();
3023 int next_view = (current_view + 1) % nviews;
3025 if (next_view == current_view) {
3026 report("Only one view is displayed");
3030 current_view = next_view;
3031 /* Blur out the title of the previous view. */
3032 update_view_title(view);
3037 report("Refreshing is not yet supported for the %s view", view->name);
3041 if (displayed_views() == 2)
3042 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3045 case REQ_TOGGLE_LINENO:
3046 opt_line_number = !opt_line_number;
3050 case REQ_TOGGLE_DATE:
3051 opt_date = !opt_date;
3055 case REQ_TOGGLE_AUTHOR:
3056 opt_author = !opt_author;
3060 case REQ_TOGGLE_REV_GRAPH:
3061 opt_rev_graph = !opt_rev_graph;
3065 case REQ_TOGGLE_REFS:
3066 opt_show_refs = !opt_show_refs;
3071 case REQ_SEARCH_BACK:
3072 search_view(view, request);
3077 find_next(view, request);
3080 case REQ_STOP_LOADING:
3081 for (i = 0; i < ARRAY_SIZE(views); i++) {
3084 report("Stopped loading the %s view", view->name),
3085 end_update(view, TRUE);
3089 case REQ_SHOW_VERSION:
3090 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3093 case REQ_SCREEN_RESIZE:
3096 case REQ_SCREEN_REDRAW:
3101 report("Nothing to edit");
3105 report("Nothing to enter");
3108 case REQ_VIEW_CLOSE:
3109 /* XXX: Mark closed views by letting view->parent point to the
3110 * view itself. Parents to closed view should never be
3113 view->parent->parent != view->parent) {
3114 memset(display, 0, sizeof(display));
3116 display[current_view] = view->parent;
3117 view->parent = view;
3128 report("Unknown key, press 'h' for help");
3141 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3143 char *text = line->data;
3145 if (opt_line_number && draw_lineno(view, lineno))
3148 draw_text(view, line->type, text, TRUE);
3153 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3155 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3156 char refbuf[SIZEOF_STR];
3159 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3160 ref = chomp_string(refbuf);
3165 /* This is the only fatal call, since it can "corrupt" the buffer. */
3166 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3173 add_pager_refs(struct view *view, struct line *line)
3175 char buf[SIZEOF_STR];
3176 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3178 size_t bufpos = 0, refpos = 0;
3179 const char *sep = "Refs: ";
3180 bool is_tag = FALSE;
3182 assert(line->type == LINE_COMMIT);
3184 refs = get_refs(commit_id);
3186 if (view == VIEW(REQ_VIEW_DIFF))
3187 goto try_add_describe_ref;
3192 struct ref *ref = refs[refpos];
3193 const char *fmt = ref->tag ? "%s[%s]" :
3194 ref->remote ? "%s<%s>" : "%s%s";
3196 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3201 } while (refs[refpos++]->next);
3203 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3204 try_add_describe_ref:
3205 /* Add <tag>-g<commit_id> "fake" reference. */
3206 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3213 if (!realloc_lines(view, view->line_size + 1))
3216 add_line_text(view, buf, LINE_PP_REFS);
3220 pager_read(struct view *view, char *data)
3227 line = add_line_text(view, data, get_line_type(data));
3231 if (line->type == LINE_COMMIT &&
3232 (view == VIEW(REQ_VIEW_DIFF) ||
3233 view == VIEW(REQ_VIEW_LOG)))
3234 add_pager_refs(view, line);
3240 pager_request(struct view *view, enum request request, struct line *line)
3244 if (request != REQ_ENTER)
3247 if (line->type == LINE_COMMIT &&
3248 (view == VIEW(REQ_VIEW_LOG) ||
3249 view == VIEW(REQ_VIEW_PAGER))) {
3250 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3254 /* Always scroll the view even if it was split. That way
3255 * you can use Enter to scroll through the log view and
3256 * split open each commit diff. */
3257 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3259 /* FIXME: A minor workaround. Scrolling the view will call report("")
3260 * but if we are scrolling a non-current view this won't properly
3261 * update the view title. */
3263 update_view_title(view);
3269 pager_grep(struct view *view, struct line *line)
3272 char *text = line->data;
3277 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3284 pager_select(struct view *view, struct line *line)
3286 if (line->type == LINE_COMMIT) {
3287 char *text = (char *)line->data + STRING_SIZE("commit ");
3289 if (view != VIEW(REQ_VIEW_PAGER))
3290 string_copy_rev(view->ref, text);
3291 string_copy_rev(ref_commit, text);
3295 static struct view_ops pager_ops = {
3306 static const char *log_argv[SIZEOF_ARG] = {
3307 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3311 log_request(struct view *view, enum request request, struct line *line)
3316 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3319 return pager_request(view, request, line);
3323 static struct view_ops log_ops = {
3334 static const char *diff_argv[SIZEOF_ARG] = {
3335 "git", "show", "--pretty=fuller", "--no-color", "--root",
3336 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3339 static struct view_ops diff_ops = {
3355 help_open(struct view *view)
3358 int lines = ARRAY_SIZE(req_info) + 2;
3361 if (view->lines > 0)
3364 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3365 if (!req_info[i].request)
3368 lines += run_requests + 1;
3370 view->line = calloc(lines, sizeof(*view->line));
3374 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3376 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3379 if (req_info[i].request == REQ_NONE)
3382 if (!req_info[i].request) {
3383 add_line_text(view, "", LINE_DEFAULT);
3384 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3388 key = get_key(req_info[i].request);
3390 key = "(no key defined)";
3392 if (!string_format(buf, " %-25s %s", key, req_info[i].help))
3395 add_line_text(view, buf, LINE_DEFAULT);
3399 add_line_text(view, "", LINE_DEFAULT);
3400 add_line_text(view, "External commands:", LINE_DEFAULT);
3403 for (i = 0; i < run_requests; i++) {
3404 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3406 char cmd[SIZEOF_STR];
3413 key = get_key_name(req->key);
3415 key = "(no key defined)";
3417 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3418 if (!string_format_from(cmd, &bufpos, "%s%s",
3419 argc ? " " : "", req->argv[argc]))
3422 if (!string_format(buf, " %-10s %-14s `%s`",
3423 keymap_table[req->keymap].name, key, cmd))
3426 add_line_text(view, buf, LINE_DEFAULT);
3432 static struct view_ops help_ops = {
3448 struct tree_stack_entry {
3449 struct tree_stack_entry *prev; /* Entry below this in the stack */
3450 unsigned long lineno; /* Line number to restore */
3451 char *name; /* Position of name in opt_path */
3454 /* The top of the path stack. */
3455 static struct tree_stack_entry *tree_stack = NULL;
3456 unsigned long tree_lineno = 0;
3459 pop_tree_stack_entry(void)
3461 struct tree_stack_entry *entry = tree_stack;
3463 tree_lineno = entry->lineno;
3465 tree_stack = entry->prev;
3470 push_tree_stack_entry(const char *name, unsigned long lineno)
3472 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3473 size_t pathlen = strlen(opt_path);
3478 entry->prev = tree_stack;
3479 entry->name = opt_path + pathlen;
3482 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3483 pop_tree_stack_entry();
3487 /* Move the current line to the first tree entry. */
3489 entry->lineno = lineno;
3492 /* Parse output from git-ls-tree(1):
3494 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3495 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3496 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3497 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3500 #define SIZEOF_TREE_ATTR \
3501 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3503 #define TREE_UP_FORMAT "040000 tree %s\t.."
3506 tree_compare_entry(enum line_type type1, const char *name1,
3507 enum line_type type2, const char *name2)
3509 if (type1 != type2) {
3510 if (type1 == LINE_TREE_DIR)
3515 return strcmp(name1, name2);
3519 tree_path(struct line *line)
3521 const char *path = line->data;
3523 return path + SIZEOF_TREE_ATTR;
3527 tree_read(struct view *view, char *text)
3529 size_t textlen = text ? strlen(text) : 0;
3530 char buf[SIZEOF_STR];
3532 enum line_type type;
3533 bool first_read = view->lines == 0;
3537 if (textlen <= SIZEOF_TREE_ATTR)
3540 type = text[STRING_SIZE("100644 ")] == 't'
3541 ? LINE_TREE_DIR : LINE_TREE_FILE;
3544 /* Add path info line */
3545 if (!string_format(buf, "Directory path /%s", opt_path) ||
3546 !realloc_lines(view, view->line_size + 1) ||
3547 !add_line_text(view, buf, LINE_DEFAULT))
3550 /* Insert "link" to parent directory. */
3552 if (!string_format(buf, TREE_UP_FORMAT, view->ref) ||
3553 !realloc_lines(view, view->line_size + 1) ||
3554 !add_line_text(view, buf, LINE_TREE_DIR))
3559 /* Strip the path part ... */
3561 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3562 size_t striplen = strlen(opt_path);
3563 char *path = text + SIZEOF_TREE_ATTR;
3565 if (pathlen > striplen)
3566 memmove(path, path + striplen,
3567 pathlen - striplen + 1);
3570 /* Skip "Directory ..." and ".." line. */
3571 for (pos = 1 + !!*opt_path; pos < view->lines; pos++) {
3572 struct line *line = &view->line[pos];
3573 const char *path1 = tree_path(line);
3574 char *path2 = text + SIZEOF_TREE_ATTR;
3575 int cmp = tree_compare_entry(line->type, path1, type, path2);
3580 text = strdup(text);
3584 if (view->lines > pos)
3585 memmove(&view->line[pos + 1], &view->line[pos],
3586 (view->lines - pos) * sizeof(*line));
3588 line = &view->line[pos];
3595 if (!add_line_text(view, text, type))
3598 if (tree_lineno > view->lineno) {
3599 view->lineno = tree_lineno;
3607 tree_request(struct view *view, enum request request, struct line *line)
3609 enum open_flags flags;
3612 case REQ_VIEW_BLAME:
3613 if (line->type != LINE_TREE_FILE) {
3614 report("Blame only supported for files");
3618 string_copy(opt_ref, view->vid);
3622 if (line->type != LINE_TREE_FILE) {
3623 report("Edit only supported for files");
3624 } else if (!is_head_commit(view->vid)) {
3625 report("Edit only supported for files in the current work tree");
3627 open_editor(TRUE, opt_file);
3631 case REQ_TREE_PARENT:
3633 /* quit view if at top of tree */
3634 return REQ_VIEW_CLOSE;
3637 line = &view->line[1];
3647 /* Cleanup the stack if the tree view is at a different tree. */
3648 while (!*opt_path && tree_stack)
3649 pop_tree_stack_entry();
3651 switch (line->type) {
3653 /* Depending on whether it is a subdir or parent (updir?) link
3654 * mangle the path buffer. */
3655 if (line == &view->line[1] && *opt_path) {
3656 pop_tree_stack_entry();
3659 const char *basename = tree_path(line);
3661 push_tree_stack_entry(basename, view->lineno);
3664 /* Trees and subtrees share the same ID, so they are not not
3665 * unique like blobs. */
3666 flags = OPEN_RELOAD;
3667 request = REQ_VIEW_TREE;
3670 case LINE_TREE_FILE:
3671 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3672 request = REQ_VIEW_BLOB;
3679 open_view(view, request, flags);
3680 if (request == REQ_VIEW_TREE) {
3681 view->lineno = tree_lineno;
3688 tree_select(struct view *view, struct line *line)
3690 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3692 if (line->type == LINE_TREE_FILE) {
3693 string_copy_rev(ref_blob, text);
3694 string_format(opt_file, "%s%s", opt_path, tree_path(line));
3696 } else if (line->type != LINE_TREE_DIR) {
3700 string_copy_rev(view->ref, text);
3703 static const char *tree_argv[SIZEOF_ARG] = {
3704 "git", "ls-tree", "%(commit)", "%(directory)", NULL
3707 static struct view_ops tree_ops = {
3719 blob_read(struct view *view, char *line)
3723 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3726 static const char *blob_argv[SIZEOF_ARG] = {
3727 "git", "cat-file", "blob", "%(blob)", NULL
3730 static struct view_ops blob_ops = {
3744 * Loading the blame view is a two phase job:
3746 * 1. File content is read either using opt_file from the
3747 * filesystem or using git-cat-file.
3748 * 2. Then blame information is incrementally added by
3749 * reading output from git-blame.
3752 static const char *blame_head_argv[] = {
3753 "git", "blame", "--incremental", "--", "%(file)", NULL
3756 static const char *blame_ref_argv[] = {
3757 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
3760 static const char *blame_cat_file_argv[] = {
3761 "git", "cat-file", "blob", "%(ref):%(file)", NULL
3764 struct blame_commit {
3765 char id[SIZEOF_REV]; /* SHA1 ID. */
3766 char title[128]; /* First line of the commit message. */
3767 char author[75]; /* Author of the commit. */
3768 struct tm time; /* Date from the author ident. */
3769 char filename[128]; /* Name of file. */
3773 struct blame_commit *commit;
3778 blame_open(struct view *view)
3780 if (*opt_ref || !init_io_fd(&view->io, fopen(opt_file, "r"))) {
3781 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
3785 setup_update(view, opt_file);
3786 string_format(view->ref, "%s ...", opt_file);
3791 static struct blame_commit *
3792 get_blame_commit(struct view *view, const char *id)
3796 for (i = 0; i < view->lines; i++) {
3797 struct blame *blame = view->line[i].data;
3802 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3803 return blame->commit;
3807 struct blame_commit *commit = calloc(1, sizeof(*commit));
3810 string_ncopy(commit->id, id, SIZEOF_REV);
3816 parse_number(const char **posref, size_t *number, size_t min, size_t max)
3818 const char *pos = *posref;
3821 pos = strchr(pos + 1, ' ');
3822 if (!pos || !isdigit(pos[1]))
3824 *number = atoi(pos + 1);
3825 if (*number < min || *number > max)
3832 static struct blame_commit *
3833 parse_blame_commit(struct view *view, const char *text, int *blamed)
3835 struct blame_commit *commit;
3836 struct blame *blame;
3837 const char *pos = text + SIZEOF_REV - 1;
3841 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3844 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3845 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3848 commit = get_blame_commit(view, text);
3854 struct line *line = &view->line[lineno + group - 1];
3857 blame->commit = commit;
3865 blame_read_file(struct view *view, const char *line, bool *read_file)
3868 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
3871 if (view->lines == 0 && !view->parent)
3872 die("No blame exist for %s", view->vid);
3874 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
3875 report("Failed to load blame data");
3879 done_io(view->pipe);
3885 size_t linelen = strlen(line);
3886 struct blame *blame = malloc(sizeof(*blame) + linelen);
3888 blame->commit = NULL;
3889 strncpy(blame->text, line, linelen);
3890 blame->text[linelen] = 0;
3891 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
3896 match_blame_header(const char *name, char **line)
3898 size_t namelen = strlen(name);
3899 bool matched = !strncmp(name, *line, namelen);
3908 blame_read(struct view *view, char *line)
3910 static struct blame_commit *commit = NULL;
3911 static int blamed = 0;
3912 static time_t author_time;
3913 static bool read_file = TRUE;
3916 return blame_read_file(view, line, &read_file);
3923 string_format(view->ref, "%s", view->vid);
3924 if (view_is_displayed(view)) {
3925 update_view_title(view);
3926 redraw_view_from(view, 0);
3932 commit = parse_blame_commit(view, line, &blamed);
3933 string_format(view->ref, "%s %2d%%", view->vid,
3934 blamed * 100 / view->lines);
3936 } else if (match_blame_header("author ", &line)) {
3937 string_ncopy(commit->author, line, strlen(line));
3939 } else if (match_blame_header("author-time ", &line)) {
3940 author_time = (time_t) atol(line);
3942 } else if (match_blame_header("author-tz ", &line)) {
3945 tz = ('0' - line[1]) * 60 * 60 * 10;
3946 tz += ('0' - line[2]) * 60 * 60;
3947 tz += ('0' - line[3]) * 60;
3948 tz += ('0' - line[4]) * 60;
3954 gmtime_r(&author_time, &commit->time);
3956 } else if (match_blame_header("summary ", &line)) {
3957 string_ncopy(commit->title, line, strlen(line));
3959 } else if (match_blame_header("filename ", &line)) {
3960 string_ncopy(commit->filename, line, strlen(line));
3968 blame_draw(struct view *view, struct line *line, unsigned int lineno)
3970 struct blame *blame = line->data;
3971 struct tm *time = NULL;
3972 const char *id = NULL, *author = NULL;
3974 if (blame->commit && *blame->commit->filename) {
3975 id = blame->commit->id;
3976 author = blame->commit->author;
3977 time = &blame->commit->time;
3980 if (opt_date && draw_date(view, time))
3984 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
3987 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
3990 if (draw_lineno(view, lineno))
3993 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
3998 blame_request(struct view *view, enum request request, struct line *line)
4000 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4001 struct blame *blame = line->data;
4004 case REQ_VIEW_BLAME:
4005 if (!blame->commit || !strcmp(blame->commit->id, NULL_ID)) {
4006 report("Commit ID unknown");
4009 string_copy(opt_ref, blame->commit->id);
4010 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4014 if (!blame->commit) {
4015 report("No commit loaded yet");
4019 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4020 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4023 if (!strcmp(blame->commit->id, NULL_ID)) {
4024 struct view *diff = VIEW(REQ_VIEW_DIFF);
4025 const char *diff_index_argv[] = {
4026 "git", "diff-index", "--root", "--cached",
4027 "--patch-with-stat", "-C", "-M",
4028 "HEAD", "--", view->vid, NULL
4031 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4032 report("Failed to allocate diff command");
4035 flags |= OPEN_PREPARED;
4038 open_view(view, REQ_VIEW_DIFF, flags);
4049 blame_grep(struct view *view, struct line *line)
4051 struct blame *blame = line->data;
4052 struct blame_commit *commit = blame->commit;
4055 #define MATCH(text, on) \
4056 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4059 char buf[DATE_COLS + 1];
4061 if (MATCH(commit->title, 1) ||
4062 MATCH(commit->author, opt_author) ||
4063 MATCH(commit->id, opt_date))
4066 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4071 return MATCH(blame->text, 1);
4077 blame_select(struct view *view, struct line *line)
4079 struct blame *blame = line->data;
4080 struct blame_commit *commit = blame->commit;
4085 if (!strcmp(commit->id, NULL_ID))
4086 string_ncopy(ref_commit, "HEAD", 4);
4088 string_copy_rev(ref_commit, commit->id);
4091 static struct view_ops blame_ops = {
4110 char rev[SIZEOF_REV];
4111 char name[SIZEOF_STR];
4115 char rev[SIZEOF_REV];
4116 char name[SIZEOF_STR];
4120 static char status_onbranch[SIZEOF_STR];
4121 static struct status stage_status;
4122 static enum line_type stage_line_type;
4123 static size_t stage_chunks;
4124 static int *stage_chunk;
4126 /* This should work even for the "On branch" line. */
4128 status_has_none(struct view *view, struct line *line)
4130 return line < view->line + view->lines && !line[1].data;
4133 /* Get fields from the diff line:
4134 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4137 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4139 const char *old_mode = buf + 1;
4140 const char *new_mode = buf + 8;
4141 const char *old_rev = buf + 15;
4142 const char *new_rev = buf + 56;
4143 const char *status = buf + 97;
4146 old_mode[-1] != ':' ||
4147 new_mode[-1] != ' ' ||
4148 old_rev[-1] != ' ' ||
4149 new_rev[-1] != ' ' ||
4153 file->status = *status;
4155 string_copy_rev(file->old.rev, old_rev);
4156 string_copy_rev(file->new.rev, new_rev);
4158 file->old.mode = strtoul(old_mode, NULL, 8);
4159 file->new.mode = strtoul(new_mode, NULL, 8);
4161 file->old.name[0] = file->new.name[0] = 0;
4167 status_run(struct view *view, const char cmd[], char status, enum line_type type)
4169 struct status *file = NULL;
4170 struct status *unmerged = NULL;
4171 char buf[SIZEOF_STR * 4];
4175 pipe = popen(cmd, "r");
4179 add_line_data(view, NULL, type);
4181 while (!feof(pipe) && !ferror(pipe)) {
4185 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
4188 bufsize += readsize;
4190 /* Process while we have NUL chars. */
4191 while ((sep = memchr(buf, 0, bufsize))) {
4192 size_t sepsize = sep - buf + 1;
4195 if (!realloc_lines(view, view->line_size + 1))
4198 file = calloc(1, sizeof(*file));
4202 add_line_data(view, file, type);
4205 /* Parse diff info part. */
4207 file->status = status;
4209 string_copy(file->old.rev, NULL_ID);
4211 } else if (!file->status) {
4212 if (!status_get_diff(file, buf, sepsize))
4216 memmove(buf, sep + 1, bufsize);
4218 sep = memchr(buf, 0, bufsize);
4221 sepsize = sep - buf + 1;
4223 /* Collapse all 'M'odified entries that
4224 * follow a associated 'U'nmerged entry.
4226 if (file->status == 'U') {
4229 } else if (unmerged) {
4230 int collapse = !strcmp(buf, unmerged->new.name);
4241 /* Grab the old name for rename/copy. */
4242 if (!*file->old.name &&
4243 (file->status == 'R' || file->status == 'C')) {
4244 sepsize = sep - buf + 1;
4245 string_ncopy(file->old.name, buf, sepsize);
4247 memmove(buf, sep + 1, bufsize);
4249 sep = memchr(buf, 0, bufsize);
4252 sepsize = sep - buf + 1;
4255 /* git-ls-files just delivers a NUL separated
4256 * list of file names similar to the second half
4257 * of the git-diff-* output. */
4258 string_ncopy(file->new.name, buf, sepsize);
4259 if (!*file->old.name)
4260 string_copy(file->old.name, file->new.name);
4262 memmove(buf, sep + 1, bufsize);
4273 if (!view->line[view->lines - 1].data)
4274 add_line_data(view, NULL, LINE_STAT_NONE);
4280 /* Don't show unmerged entries in the staged section. */
4281 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached -M HEAD"
4282 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
4283 #define STATUS_LIST_OTHER_CMD \
4284 "git ls-files -z --others --exclude-standard"
4285 #define STATUS_LIST_NO_HEAD_CMD \
4286 "git ls-files -z --cached --exclude-standard"
4288 #define STATUS_DIFF_INDEX_SHOW_CMD \
4289 "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s %s 2>/dev/null"
4291 #define STATUS_DIFF_FILES_SHOW_CMD \
4292 "git diff-files --root --patch-with-stat -C -M -- %s %s 2>/dev/null"
4294 #define STATUS_DIFF_NO_HEAD_SHOW_CMD \
4295 "git diff --no-color --patch-with-stat /dev/null %s 2>/dev/null"
4297 /* First parse staged info using git-diff-index(1), then parse unstaged
4298 * info using git-diff-files(1), and finally untracked files using
4299 * git-ls-files(1). */
4301 status_open(struct view *view)
4303 unsigned long prev_lineno = view->lineno;
4307 if (!realloc_lines(view, view->line_size + 7))
4310 add_line_data(view, NULL, LINE_STAT_HEAD);
4311 if (is_initial_commit())
4312 string_copy(status_onbranch, "Initial commit");
4313 else if (!*opt_head)
4314 string_copy(status_onbranch, "Not currently on any branch");
4315 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4318 system("git update-index -q --refresh >/dev/null 2>/dev/null");
4320 if (is_initial_commit()) {
4321 if (!status_run(view, STATUS_LIST_NO_HEAD_CMD, 'A', LINE_STAT_STAGED))
4323 } else if (!status_run(view, STATUS_DIFF_INDEX_CMD, 0, LINE_STAT_STAGED)) {
4327 if (!status_run(view, STATUS_DIFF_FILES_CMD, 0, LINE_STAT_UNSTAGED) ||
4328 !status_run(view, STATUS_LIST_OTHER_CMD, '?', LINE_STAT_UNTRACKED))
4331 /* If all went well restore the previous line number to stay in
4332 * the context or select a line with something that can be
4334 if (prev_lineno >= view->lines)
4335 prev_lineno = view->lines - 1;
4336 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
4338 while (prev_lineno > 0 && !view->line[prev_lineno].data)
4341 /* If the above fails, always skip the "On branch" line. */
4342 if (prev_lineno < view->lines)
4343 view->lineno = prev_lineno;
4347 if (view->lineno < view->offset)
4348 view->offset = view->lineno;
4349 else if (view->offset + view->height <= view->lineno)
4350 view->offset = view->lineno - view->height + 1;
4356 status_draw(struct view *view, struct line *line, unsigned int lineno)
4358 struct status *status = line->data;
4359 enum line_type type;
4363 switch (line->type) {
4364 case LINE_STAT_STAGED:
4365 type = LINE_STAT_SECTION;
4366 text = "Changes to be committed:";
4369 case LINE_STAT_UNSTAGED:
4370 type = LINE_STAT_SECTION;
4371 text = "Changed but not updated:";
4374 case LINE_STAT_UNTRACKED:
4375 type = LINE_STAT_SECTION;
4376 text = "Untracked files:";
4379 case LINE_STAT_NONE:
4380 type = LINE_DEFAULT;
4381 text = " (no files)";
4384 case LINE_STAT_HEAD:
4385 type = LINE_STAT_HEAD;
4386 text = status_onbranch;
4393 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4395 buf[0] = status->status;
4396 if (draw_text(view, line->type, buf, TRUE))
4398 type = LINE_DEFAULT;
4399 text = status->new.name;
4402 draw_text(view, type, text, TRUE);
4407 status_enter(struct view *view, struct line *line)
4409 struct status *status = line->data;
4410 char oldpath[SIZEOF_STR] = "";
4411 char newpath[SIZEOF_STR] = "";
4414 enum open_flags split;
4416 if (line->type == LINE_STAT_NONE ||
4417 (!status && line[1].type == LINE_STAT_NONE)) {
4418 report("No file to diff");
4423 if (sq_quote(oldpath, 0, status->old.name) >= sizeof(oldpath))
4425 /* Diffs for unmerged entries are empty when pasing the
4426 * new path, so leave it empty. */
4427 if (status->status != 'U' &&
4428 sq_quote(newpath, 0, status->new.name) >= sizeof(newpath))
4433 line->type != LINE_STAT_UNTRACKED &&
4434 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
4437 switch (line->type) {
4438 case LINE_STAT_STAGED:
4439 if (is_initial_commit()) {
4440 if (!string_format_from(opt_cmd, &cmdsize,
4441 STATUS_DIFF_NO_HEAD_SHOW_CMD,
4445 if (!string_format_from(opt_cmd, &cmdsize,
4446 STATUS_DIFF_INDEX_SHOW_CMD,
4452 info = "Staged changes to %s";
4454 info = "Staged changes";
4457 case LINE_STAT_UNSTAGED:
4458 if (!string_format_from(opt_cmd, &cmdsize,
4459 STATUS_DIFF_FILES_SHOW_CMD, oldpath, newpath))
4462 info = "Unstaged changes to %s";
4464 info = "Unstaged changes";
4467 case LINE_STAT_UNTRACKED:
4472 report("No file to show");
4476 if (!suffixcmp(status->new.name, -1, "/")) {
4477 report("Cannot display a directory");
4481 opt_pipe = fopen(status->new.name, "r");
4482 info = "Untracked file %s";
4485 case LINE_STAT_HEAD:
4489 die("line type %d not handled in switch", line->type);
4492 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4493 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH | split);
4494 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4496 stage_status = *status;
4498 memset(&stage_status, 0, sizeof(stage_status));
4501 stage_line_type = line->type;
4503 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4510 status_exists(struct status *status, enum line_type type)
4512 struct view *view = VIEW(REQ_VIEW_STATUS);
4515 for (line = view->line; line < view->line + view->lines; line++) {
4516 struct status *pos = line->data;
4518 if (line->type == type && pos &&
4519 !strcmp(status->new.name, pos->new.name))
4528 status_update_prepare(enum line_type type)
4530 char cmd[SIZEOF_STR];
4534 type != LINE_STAT_UNTRACKED &&
4535 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4539 case LINE_STAT_STAGED:
4540 string_add(cmd, cmdsize, "git update-index -z --index-info");
4543 case LINE_STAT_UNSTAGED:
4544 case LINE_STAT_UNTRACKED:
4545 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
4549 die("line type %d not handled in switch", type);
4552 return popen(cmd, "w");
4556 status_update_write(FILE *pipe, struct status *status, enum line_type type)
4558 char buf[SIZEOF_STR];
4563 case LINE_STAT_STAGED:
4564 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4567 status->old.name, 0))
4571 case LINE_STAT_UNSTAGED:
4572 case LINE_STAT_UNTRACKED:
4573 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4578 die("line type %d not handled in switch", type);
4581 while (!ferror(pipe) && written < bufsize) {
4582 written += fwrite(buf + written, 1, bufsize - written, pipe);
4585 return written == bufsize;
4589 status_update_file(struct status *status, enum line_type type)
4591 FILE *pipe = status_update_prepare(type);
4597 result = status_update_write(pipe, status, type);
4603 status_update_files(struct view *view, struct line *line)
4605 FILE *pipe = status_update_prepare(line->type);
4607 struct line *pos = view->line + view->lines;
4614 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4617 for (file = 0, done = 0; result && file < files; line++, file++) {
4618 int almost_done = file * 100 / files;
4620 if (almost_done > done) {
4622 string_format(view->ref, "updating file %u of %u (%d%% done)",
4624 update_view_title(view);
4626 result = status_update_write(pipe, line->data, line->type);
4634 status_update(struct view *view)
4636 struct line *line = &view->line[view->lineno];
4638 assert(view->lines);
4641 /* This should work even for the "On branch" line. */
4642 if (line < view->line + view->lines && !line[1].data) {
4643 report("Nothing to update");
4647 if (!status_update_files(view, line + 1)) {
4648 report("Failed to update file status");
4652 } else if (!status_update_file(line->data, line->type)) {
4653 report("Failed to update file status");
4661 status_revert(struct status *status, enum line_type type, bool has_none)
4663 if (!status || type != LINE_STAT_UNSTAGED) {
4664 if (type == LINE_STAT_STAGED) {
4665 report("Cannot revert changes to staged files");
4666 } else if (type == LINE_STAT_UNTRACKED) {
4667 report("Cannot revert changes to untracked files");
4668 } else if (has_none) {
4669 report("Nothing to revert");
4671 report("Cannot revert changes to multiple files");
4676 const char *checkout_argv[] = {
4677 "git", "checkout", "--", status->old.name, NULL
4680 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
4682 return run_io_fg(checkout_argv, opt_cdup);
4687 status_request(struct view *view, enum request request, struct line *line)
4689 struct status *status = line->data;
4692 case REQ_STATUS_UPDATE:
4693 if (!status_update(view))
4697 case REQ_STATUS_REVERT:
4698 if (!status_revert(status, line->type, status_has_none(view, line)))
4702 case REQ_STATUS_MERGE:
4703 if (!status || status->status != 'U') {
4704 report("Merging only possible for files with unmerged status ('U').");
4707 open_mergetool(status->new.name);
4713 if (status->status == 'D') {
4714 report("File has been deleted.");
4718 open_editor(status->status != '?', status->new.name);
4721 case REQ_VIEW_BLAME:
4723 string_copy(opt_file, status->new.name);
4729 /* After returning the status view has been split to
4730 * show the stage view. No further reloading is
4732 status_enter(view, line);
4736 /* Simply reload the view. */
4743 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4749 status_select(struct view *view, struct line *line)
4751 struct status *status = line->data;
4752 char file[SIZEOF_STR] = "all files";
4756 if (status && !string_format(file, "'%s'", status->new.name))
4759 if (!status && line[1].type == LINE_STAT_NONE)
4762 switch (line->type) {
4763 case LINE_STAT_STAGED:
4764 text = "Press %s to unstage %s for commit";
4767 case LINE_STAT_UNSTAGED:
4768 text = "Press %s to stage %s for commit";
4771 case LINE_STAT_UNTRACKED:
4772 text = "Press %s to stage %s for addition";
4775 case LINE_STAT_HEAD:
4776 case LINE_STAT_NONE:
4777 text = "Nothing to update";
4781 die("line type %d not handled in switch", line->type);
4784 if (status && status->status == 'U') {
4785 text = "Press %s to resolve conflict in %s";
4786 key = get_key(REQ_STATUS_MERGE);
4789 key = get_key(REQ_STATUS_UPDATE);
4792 string_format(view->ref, text, key, file);
4796 status_grep(struct view *view, struct line *line)
4798 struct status *status = line->data;
4799 enum { S_STATUS, S_NAME, S_END } state;
4806 for (state = S_STATUS; state < S_END; state++) {
4810 case S_NAME: text = status->new.name; break;
4812 buf[0] = status->status;
4820 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4827 static struct view_ops status_ops = {
4840 stage_diff_line(FILE *pipe, struct line *line)
4842 const char *buf = line->data;
4843 size_t bufsize = strlen(buf);
4846 while (!ferror(pipe) && written < bufsize) {
4847 written += fwrite(buf + written, 1, bufsize - written, pipe);
4852 return written == bufsize;
4856 stage_diff_write(FILE *pipe, struct line *line, struct line *end)
4858 while (line < end) {
4859 if (!stage_diff_line(pipe, line++))
4861 if (line->type == LINE_DIFF_CHUNK ||
4862 line->type == LINE_DIFF_HEADER)
4869 static struct line *
4870 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4872 for (; view->line < line; line--)
4873 if (line->type == type)
4880 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
4882 char cmd[SIZEOF_STR];
4884 struct line *diff_hdr;
4887 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4892 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4895 if (!string_format_from(cmd, &cmdsize,
4896 "git apply --whitespace=nowarn %s %s - && "
4897 "git update-index -q --unmerged --refresh 2>/dev/null",
4898 revert ? "" : "--cached",
4899 revert || stage_line_type == LINE_STAT_STAGED ? "-R" : ""))
4902 pipe = popen(cmd, "w");
4906 if (!stage_diff_write(pipe, diff_hdr, chunk) ||
4907 !stage_diff_write(pipe, chunk, view->line + view->lines))
4912 return chunk ? TRUE : FALSE;
4916 stage_update(struct view *view, struct line *line)
4918 struct line *chunk = NULL;
4920 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
4921 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4924 if (!stage_apply_chunk(view, chunk, FALSE)) {
4925 report("Failed to apply chunk");
4929 } else if (!stage_status.status) {
4930 view = VIEW(REQ_VIEW_STATUS);
4932 for (line = view->line; line < view->line + view->lines; line++)
4933 if (line->type == stage_line_type)
4936 if (!status_update_files(view, line + 1)) {
4937 report("Failed to update files");
4941 } else if (!status_update_file(&stage_status, stage_line_type)) {
4942 report("Failed to update file");
4950 stage_revert(struct view *view, struct line *line)
4952 struct line *chunk = NULL;
4954 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
4955 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4958 if (!prompt_yesno("Are you sure you want to revert changes?"))
4961 if (!stage_apply_chunk(view, chunk, TRUE)) {
4962 report("Failed to revert chunk");
4968 return status_revert(stage_status.status ? &stage_status : NULL,
4969 stage_line_type, FALSE);
4975 stage_next(struct view *view, struct line *line)
4979 if (!stage_chunks) {
4980 static size_t alloc = 0;
4983 for (line = view->line; line < view->line + view->lines; line++) {
4984 if (line->type != LINE_DIFF_CHUNK)
4987 tmp = realloc_items(stage_chunk, &alloc,
4988 stage_chunks, sizeof(*tmp));
4990 report("Allocation failure");
4995 stage_chunk[stage_chunks++] = line - view->line;
4999 for (i = 0; i < stage_chunks; i++) {
5000 if (stage_chunk[i] > view->lineno) {
5001 do_scroll_view(view, stage_chunk[i] - view->lineno);
5002 report("Chunk %d of %d", i + 1, stage_chunks);
5007 report("No next chunk found");
5011 stage_request(struct view *view, enum request request, struct line *line)
5014 case REQ_STATUS_UPDATE:
5015 if (!stage_update(view, line))
5019 case REQ_STATUS_REVERT:
5020 if (!stage_revert(view, line))
5024 case REQ_STAGE_NEXT:
5025 if (stage_line_type == LINE_STAT_UNTRACKED) {
5026 report("File is untracked; press %s to add",
5027 get_key(REQ_STATUS_UPDATE));
5030 stage_next(view, line);
5034 if (!stage_status.new.name[0])
5036 if (stage_status.status == 'D') {
5037 report("File has been deleted.");
5041 open_editor(stage_status.status != '?', stage_status.new.name);
5045 /* Reload everything ... */
5048 case REQ_VIEW_BLAME:
5049 if (stage_status.new.name[0]) {
5050 string_copy(opt_file, stage_status.new.name);
5056 return pager_request(view, request, line);
5062 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
5064 /* Check whether the staged entry still exists, and close the
5065 * stage view if it doesn't. */
5066 if (!status_exists(&stage_status, stage_line_type))
5067 return REQ_VIEW_CLOSE;
5069 if (stage_line_type == LINE_STAT_UNTRACKED) {
5070 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5071 report("Cannot display a directory");
5075 opt_pipe = fopen(stage_status.new.name, "r");
5077 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5082 static struct view_ops stage_ops = {
5099 char id[SIZEOF_REV]; /* SHA1 ID. */
5100 char title[128]; /* First line of the commit message. */
5101 char author[75]; /* Author of the commit. */
5102 struct tm time; /* Date from the author ident. */
5103 struct ref **refs; /* Repository references. */
5104 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5105 size_t graph_size; /* The width of the graph array. */
5106 bool has_parents; /* Rewritten --parents seen. */
5109 /* Size of rev graph with no "padding" columns */
5110 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5113 struct rev_graph *prev, *next, *parents;
5114 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5116 struct commit *commit;
5118 unsigned int boundary:1;
5121 /* Parents of the commit being visualized. */
5122 static struct rev_graph graph_parents[4];
5124 /* The current stack of revisions on the graph. */
5125 static struct rev_graph graph_stacks[4] = {
5126 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5127 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5128 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5129 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5133 graph_parent_is_merge(struct rev_graph *graph)
5135 return graph->parents->size > 1;
5139 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5141 struct commit *commit = graph->commit;
5143 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5144 commit->graph[commit->graph_size++] = symbol;
5148 clear_rev_graph(struct rev_graph *graph)
5150 graph->boundary = 0;
5151 graph->size = graph->pos = 0;
5152 graph->commit = NULL;
5153 memset(graph->parents, 0, sizeof(*graph->parents));
5157 done_rev_graph(struct rev_graph *graph)
5159 if (graph_parent_is_merge(graph) &&
5160 graph->pos < graph->size - 1 &&
5161 graph->next->size == graph->size + graph->parents->size - 1) {
5162 size_t i = graph->pos + graph->parents->size - 1;
5164 graph->commit->graph_size = i * 2;
5165 while (i < graph->next->size - 1) {
5166 append_to_rev_graph(graph, ' ');
5167 append_to_rev_graph(graph, '\\');
5172 clear_rev_graph(graph);
5176 push_rev_graph(struct rev_graph *graph, const char *parent)
5180 /* "Collapse" duplicate parents lines.
5182 * FIXME: This needs to also update update the drawn graph but
5183 * for now it just serves as a method for pruning graph lines. */
5184 for (i = 0; i < graph->size; i++)
5185 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5188 if (graph->size < SIZEOF_REVITEMS) {
5189 string_copy_rev(graph->rev[graph->size++], parent);
5194 get_rev_graph_symbol(struct rev_graph *graph)
5198 if (graph->boundary)
5199 symbol = REVGRAPH_BOUND;
5200 else if (graph->parents->size == 0)
5201 symbol = REVGRAPH_INIT;
5202 else if (graph_parent_is_merge(graph))
5203 symbol = REVGRAPH_MERGE;
5204 else if (graph->pos >= graph->size)
5205 symbol = REVGRAPH_BRANCH;
5207 symbol = REVGRAPH_COMMIT;
5213 draw_rev_graph(struct rev_graph *graph)
5216 chtype separator, line;
5218 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5219 static struct rev_filler fillers[] = {
5225 chtype symbol = get_rev_graph_symbol(graph);
5226 struct rev_filler *filler;
5229 if (opt_line_graphics)
5230 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5232 filler = &fillers[DEFAULT];
5234 for (i = 0; i < graph->pos; i++) {
5235 append_to_rev_graph(graph, filler->line);
5236 if (graph_parent_is_merge(graph->prev) &&
5237 graph->prev->pos == i)
5238 filler = &fillers[RSHARP];
5240 append_to_rev_graph(graph, filler->separator);
5243 /* Place the symbol for this revision. */
5244 append_to_rev_graph(graph, symbol);
5246 if (graph->prev->size > graph->size)
5247 filler = &fillers[RDIAG];
5249 filler = &fillers[DEFAULT];
5253 for (; i < graph->size; i++) {
5254 append_to_rev_graph(graph, filler->separator);
5255 append_to_rev_graph(graph, filler->line);
5256 if (graph_parent_is_merge(graph->prev) &&
5257 i < graph->prev->pos + graph->parents->size)
5258 filler = &fillers[RSHARP];
5259 if (graph->prev->size > graph->size)
5260 filler = &fillers[LDIAG];
5263 if (graph->prev->size > graph->size) {
5264 append_to_rev_graph(graph, filler->separator);
5265 if (filler->line != ' ')
5266 append_to_rev_graph(graph, filler->line);
5270 /* Prepare the next rev graph */
5272 prepare_rev_graph(struct rev_graph *graph)
5276 /* First, traverse all lines of revisions up to the active one. */
5277 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5278 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5281 push_rev_graph(graph->next, graph->rev[graph->pos]);
5284 /* Interleave the new revision parent(s). */
5285 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5286 push_rev_graph(graph->next, graph->parents->rev[i]);
5288 /* Lastly, put any remaining revisions. */
5289 for (i = graph->pos + 1; i < graph->size; i++)
5290 push_rev_graph(graph->next, graph->rev[i]);
5294 update_rev_graph(struct rev_graph *graph)
5296 /* If this is the finalizing update ... */
5298 prepare_rev_graph(graph);
5300 /* Graph visualization needs a one rev look-ahead,
5301 * so the first update doesn't visualize anything. */
5302 if (!graph->prev->commit)
5305 draw_rev_graph(graph->prev);
5306 done_rev_graph(graph->prev->prev);
5314 static const char *main_argv[SIZEOF_ARG] = {
5315 "git", "log", "--no-color", "--pretty=raw", "--parents",
5316 "--topo-order", "%(head)", NULL
5320 main_draw(struct view *view, struct line *line, unsigned int lineno)
5322 struct commit *commit = line->data;
5324 if (!*commit->author)
5327 if (opt_date && draw_date(view, &commit->time))
5331 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5334 if (opt_rev_graph && commit->graph_size &&
5335 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5338 if (opt_show_refs && commit->refs) {
5342 enum line_type type;
5344 if (commit->refs[i]->head)
5345 type = LINE_MAIN_HEAD;
5346 else if (commit->refs[i]->ltag)
5347 type = LINE_MAIN_LOCAL_TAG;
5348 else if (commit->refs[i]->tag)
5349 type = LINE_MAIN_TAG;
5350 else if (commit->refs[i]->tracked)
5351 type = LINE_MAIN_TRACKED;
5352 else if (commit->refs[i]->remote)
5353 type = LINE_MAIN_REMOTE;
5355 type = LINE_MAIN_REF;
5357 if (draw_text(view, type, "[", TRUE) ||
5358 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5359 draw_text(view, type, "]", TRUE))
5362 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5364 } while (commit->refs[i++]->next);
5367 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5371 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5373 main_read(struct view *view, char *line)
5375 static struct rev_graph *graph = graph_stacks;
5376 enum line_type type;
5377 struct commit *commit;
5382 if (!view->lines && !view->parent)
5383 die("No revisions match the given arguments.");
5384 if (view->lines > 0) {
5385 commit = view->line[view->lines - 1].data;
5386 if (!*commit->author) {
5389 graph->commit = NULL;
5392 update_rev_graph(graph);
5394 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5395 clear_rev_graph(&graph_stacks[i]);
5399 type = get_line_type(line);
5400 if (type == LINE_COMMIT) {
5401 commit = calloc(1, sizeof(struct commit));
5405 line += STRING_SIZE("commit ");
5407 graph->boundary = 1;
5411 string_copy_rev(commit->id, line);
5412 commit->refs = get_refs(commit->id);
5413 graph->commit = commit;
5414 add_line_data(view, commit, LINE_MAIN_COMMIT);
5416 while ((line = strchr(line, ' '))) {
5418 push_rev_graph(graph->parents, line);
5419 commit->has_parents = TRUE;
5426 commit = view->line[view->lines - 1].data;
5430 if (commit->has_parents)
5432 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5437 /* Parse author lines where the name may be empty:
5438 * author <email@address.tld> 1138474660 +0100
5440 char *ident = line + STRING_SIZE("author ");
5441 char *nameend = strchr(ident, '<');
5442 char *emailend = strchr(ident, '>');
5444 if (!nameend || !emailend)
5447 update_rev_graph(graph);
5448 graph = graph->next;
5450 *nameend = *emailend = 0;
5451 ident = chomp_string(ident);
5453 ident = chomp_string(nameend + 1);
5458 string_ncopy(commit->author, ident, strlen(ident));
5460 /* Parse epoch and timezone */
5461 if (emailend[1] == ' ') {
5462 char *secs = emailend + 2;
5463 char *zone = strchr(secs, ' ');
5464 time_t time = (time_t) atol(secs);
5466 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5470 tz = ('0' - zone[1]) * 60 * 60 * 10;
5471 tz += ('0' - zone[2]) * 60 * 60;
5472 tz += ('0' - zone[3]) * 60;
5473 tz += ('0' - zone[4]) * 60;
5481 gmtime_r(&time, &commit->time);
5486 /* Fill in the commit title if it has not already been set. */
5487 if (commit->title[0])
5490 /* Require titles to start with a non-space character at the
5491 * offset used by git log. */
5492 if (strncmp(line, " ", 4))
5495 /* Well, if the title starts with a whitespace character,
5496 * try to be forgiving. Otherwise we end up with no title. */
5497 while (isspace(*line))
5501 /* FIXME: More graceful handling of titles; append "..." to
5502 * shortened titles, etc. */
5504 string_ncopy(commit->title, line, strlen(line));
5511 main_request(struct view *view, enum request request, struct line *line)
5513 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5517 open_view(view, REQ_VIEW_DIFF, flags);
5521 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5531 grep_refs(struct ref **refs, regex_t *regex)
5539 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5541 } while (refs[i++]->next);
5547 main_grep(struct view *view, struct line *line)
5549 struct commit *commit = line->data;
5550 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5551 char buf[DATE_COLS + 1];
5554 for (state = S_TITLE; state < S_END; state++) {
5558 case S_TITLE: text = commit->title; break;
5562 text = commit->author;
5567 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5574 if (grep_refs(commit->refs, view->regex) == TRUE)
5581 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5589 main_select(struct view *view, struct line *line)
5591 struct commit *commit = line->data;
5593 string_copy_rev(view->ref, commit->id);
5594 string_copy_rev(ref_commit, view->ref);
5597 static struct view_ops main_ops = {
5610 * Unicode / UTF-8 handling
5612 * NOTE: Much of the following code for dealing with unicode is derived from
5613 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5614 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5617 /* I've (over)annotated a lot of code snippets because I am not entirely
5618 * confident that the approach taken by this small UTF-8 interface is correct.
5622 unicode_width(unsigned long c)
5625 (c <= 0x115f /* Hangul Jamo */
5628 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5630 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5631 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5632 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5633 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5634 || (c >= 0xffe0 && c <= 0xffe6)
5635 || (c >= 0x20000 && c <= 0x2fffd)
5636 || (c >= 0x30000 && c <= 0x3fffd)))
5640 return opt_tab_size;
5645 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5646 * Illegal bytes are set one. */
5647 static const unsigned char utf8_bytes[256] = {
5648 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,
5649 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,
5650 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,
5651 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,
5652 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,
5653 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,
5654 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,
5655 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,
5658 /* Decode UTF-8 multi-byte representation into a unicode character. */
5659 static inline unsigned long
5660 utf8_to_unicode(const char *string, size_t length)
5662 unsigned long unicode;
5666 unicode = string[0];
5669 unicode = (string[0] & 0x1f) << 6;
5670 unicode += (string[1] & 0x3f);
5673 unicode = (string[0] & 0x0f) << 12;
5674 unicode += ((string[1] & 0x3f) << 6);
5675 unicode += (string[2] & 0x3f);
5678 unicode = (string[0] & 0x0f) << 18;
5679 unicode += ((string[1] & 0x3f) << 12);
5680 unicode += ((string[2] & 0x3f) << 6);
5681 unicode += (string[3] & 0x3f);
5684 unicode = (string[0] & 0x0f) << 24;
5685 unicode += ((string[1] & 0x3f) << 18);
5686 unicode += ((string[2] & 0x3f) << 12);
5687 unicode += ((string[3] & 0x3f) << 6);
5688 unicode += (string[4] & 0x3f);
5691 unicode = (string[0] & 0x01) << 30;
5692 unicode += ((string[1] & 0x3f) << 24);
5693 unicode += ((string[2] & 0x3f) << 18);
5694 unicode += ((string[3] & 0x3f) << 12);
5695 unicode += ((string[4] & 0x3f) << 6);
5696 unicode += (string[5] & 0x3f);
5699 die("Invalid unicode length");
5702 /* Invalid characters could return the special 0xfffd value but NUL
5703 * should be just as good. */
5704 return unicode > 0xffff ? 0 : unicode;
5707 /* Calculates how much of string can be shown within the given maximum width
5708 * and sets trimmed parameter to non-zero value if all of string could not be
5709 * shown. If the reserve flag is TRUE, it will reserve at least one
5710 * trailing character, which can be useful when drawing a delimiter.
5712 * Returns the number of bytes to output from string to satisfy max_width. */
5714 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5716 const char *start = string;
5717 const char *end = strchr(string, '\0');
5718 unsigned char last_bytes = 0;
5719 size_t last_ucwidth = 0;
5724 while (string < end) {
5725 int c = *(unsigned char *) string;
5726 unsigned char bytes = utf8_bytes[c];
5728 unsigned long unicode;
5730 if (string + bytes > end)
5733 /* Change representation to figure out whether
5734 * it is a single- or double-width character. */
5736 unicode = utf8_to_unicode(string, bytes);
5737 /* FIXME: Graceful handling of invalid unicode character. */
5741 ucwidth = unicode_width(unicode);
5743 if (*width > max_width) {
5746 if (reserve && *width == max_width) {
5747 string -= last_bytes;
5748 *width -= last_ucwidth;
5755 last_ucwidth = ucwidth;
5758 return string - start;
5766 /* Whether or not the curses interface has been initialized. */
5767 static bool cursed = FALSE;
5769 /* The status window is used for polling keystrokes. */
5770 static WINDOW *status_win;
5772 static bool status_empty = TRUE;
5774 /* Update status and title window. */
5776 report(const char *msg, ...)
5778 struct view *view = display[current_view];
5784 char buf[SIZEOF_STR];
5787 va_start(args, msg);
5788 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5789 buf[sizeof(buf) - 1] = 0;
5790 buf[sizeof(buf) - 2] = '.';
5791 buf[sizeof(buf) - 3] = '.';
5792 buf[sizeof(buf) - 4] = '.';
5798 if (!status_empty || *msg) {
5801 va_start(args, msg);
5803 wmove(status_win, 0, 0);
5805 vwprintw(status_win, msg, args);
5806 status_empty = FALSE;
5808 status_empty = TRUE;
5810 wclrtoeol(status_win);
5811 wrefresh(status_win);
5816 update_view_title(view);
5817 update_display_cursor(view);
5820 /* Controls when nodelay should be in effect when polling user input. */
5822 set_nonblocking_input(bool loading)
5824 static unsigned int loading_views;
5826 if ((loading == FALSE && loading_views-- == 1) ||
5827 (loading == TRUE && loading_views++ == 0))
5828 nodelay(status_win, loading);
5836 /* Initialize the curses library */
5837 if (isatty(STDIN_FILENO)) {
5838 cursed = !!initscr();
5841 /* Leave stdin and stdout alone when acting as a pager. */
5842 opt_tty = fopen("/dev/tty", "r+");
5844 die("Failed to open /dev/tty");
5845 cursed = !!newterm(NULL, opt_tty, opt_tty);
5849 die("Failed to initialize curses");
5851 nonl(); /* Tell curses not to do NL->CR/NL on output */
5852 cbreak(); /* Take input chars one at a time, no wait for \n */
5853 noecho(); /* Don't echo input */
5854 leaveok(stdscr, TRUE);
5859 getmaxyx(stdscr, y, x);
5860 status_win = newwin(1, 0, y - 1, 0);
5862 die("Failed to create status window");
5864 /* Enable keyboard mapping */
5865 keypad(status_win, TRUE);
5866 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5868 TABSIZE = opt_tab_size;
5869 if (opt_line_graphics) {
5870 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5875 prompt_yesno(const char *prompt)
5877 enum { WAIT, STOP, CANCEL } status = WAIT;
5878 bool answer = FALSE;
5880 while (status == WAIT) {
5886 foreach_view (view, i)
5891 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
5892 wclrtoeol(status_win);
5894 /* Refresh, accept single keystroke of input */
5895 key = wgetch(status_win);
5919 /* Clear the status window */
5920 status_empty = FALSE;
5927 read_prompt(const char *prompt)
5929 enum { READING, STOP, CANCEL } status = READING;
5930 static char buf[SIZEOF_STR];
5933 while (status == READING) {
5939 foreach_view (view, i)
5944 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5945 wclrtoeol(status_win);
5947 /* Refresh, accept single keystroke of input */
5948 key = wgetch(status_win);
5953 status = pos ? STOP : CANCEL;
5971 if (pos >= sizeof(buf)) {
5972 report("Input string too long");
5977 buf[pos++] = (char) key;
5981 /* Clear the status window */
5982 status_empty = FALSE;
5985 if (status == CANCEL)
5994 * Repository references
5997 static struct ref *refs = NULL;
5998 static size_t refs_alloc = 0;
5999 static size_t refs_size = 0;
6001 /* Id <-> ref store */
6002 static struct ref ***id_refs = NULL;
6003 static size_t id_refs_alloc = 0;
6004 static size_t id_refs_size = 0;
6007 compare_refs(const void *ref1_, const void *ref2_)
6009 const struct ref *ref1 = *(const struct ref **)ref1_;
6010 const struct ref *ref2 = *(const struct ref **)ref2_;
6012 if (ref1->tag != ref2->tag)
6013 return ref2->tag - ref1->tag;
6014 if (ref1->ltag != ref2->ltag)
6015 return ref2->ltag - ref2->ltag;
6016 if (ref1->head != ref2->head)
6017 return ref2->head - ref1->head;
6018 if (ref1->tracked != ref2->tracked)
6019 return ref2->tracked - ref1->tracked;
6020 if (ref1->remote != ref2->remote)
6021 return ref2->remote - ref1->remote;
6022 return strcmp(ref1->name, ref2->name);
6025 static struct ref **
6026 get_refs(const char *id)
6028 struct ref ***tmp_id_refs;
6029 struct ref **ref_list = NULL;
6030 size_t ref_list_alloc = 0;
6031 size_t ref_list_size = 0;
6034 for (i = 0; i < id_refs_size; i++)
6035 if (!strcmp(id, id_refs[i][0]->id))
6038 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6043 id_refs = tmp_id_refs;
6045 for (i = 0; i < refs_size; i++) {
6048 if (strcmp(id, refs[i].id))
6051 tmp = realloc_items(ref_list, &ref_list_alloc,
6052 ref_list_size + 1, sizeof(*ref_list));
6060 ref_list[ref_list_size] = &refs[i];
6061 /* XXX: The properties of the commit chains ensures that we can
6062 * safely modify the shared ref. The repo references will
6063 * always be similar for the same id. */
6064 ref_list[ref_list_size]->next = 1;
6070 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6071 ref_list[ref_list_size - 1]->next = 0;
6072 id_refs[id_refs_size++] = ref_list;
6079 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6084 bool remote = FALSE;
6085 bool tracked = FALSE;
6086 bool check_replace = FALSE;
6089 if (!prefixcmp(name, "refs/tags/")) {
6090 if (!suffixcmp(name, namelen, "^{}")) {
6093 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6094 check_replace = TRUE;
6100 namelen -= STRING_SIZE("refs/tags/");
6101 name += STRING_SIZE("refs/tags/");
6103 } else if (!prefixcmp(name, "refs/remotes/")) {
6105 namelen -= STRING_SIZE("refs/remotes/");
6106 name += STRING_SIZE("refs/remotes/");
6107 tracked = !strcmp(opt_remote, name);
6109 } else if (!prefixcmp(name, "refs/heads/")) {
6110 namelen -= STRING_SIZE("refs/heads/");
6111 name += STRING_SIZE("refs/heads/");
6112 head = !strncmp(opt_head, name, namelen);
6114 } else if (!strcmp(name, "HEAD")) {
6115 string_ncopy(opt_head_rev, id, idlen);
6119 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6120 /* it's an annotated tag, replace the previous sha1 with the
6121 * resolved commit id; relies on the fact git-ls-remote lists
6122 * the commit id of an annotated tag right before the commit id
6124 refs[refs_size - 1].ltag = ltag;
6125 string_copy_rev(refs[refs_size - 1].id, id);
6129 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6133 ref = &refs[refs_size++];
6134 ref->name = malloc(namelen + 1);
6138 strncpy(ref->name, name, namelen);
6139 ref->name[namelen] = 0;
6143 ref->remote = remote;
6144 ref->tracked = tracked;
6145 string_copy_rev(ref->id, id);
6153 const char *cmd_env = getenv("TIG_LS_REMOTE");
6154 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
6159 while (refs_size > 0)
6160 free(refs[--refs_size].name);
6161 while (id_refs_size > 0)
6162 free(id_refs[--id_refs_size]);
6164 return read_properties(popen(cmd, "r"), "\t", read_ref);
6168 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6170 if (!strcmp(name, "i18n.commitencoding"))
6171 string_ncopy(opt_encoding, value, valuelen);
6173 if (!strcmp(name, "core.editor"))
6174 string_ncopy(opt_editor, value, valuelen);
6176 /* branch.<head>.remote */
6178 !strncmp(name, "branch.", 7) &&
6179 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6180 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6181 string_ncopy(opt_remote, value, valuelen);
6183 if (*opt_head && *opt_remote &&
6184 !strncmp(name, "branch.", 7) &&
6185 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6186 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6187 size_t from = strlen(opt_remote);
6189 if (!prefixcmp(value, "refs/heads/")) {
6190 value += STRING_SIZE("refs/heads/");
6191 valuelen -= STRING_SIZE("refs/heads/");
6194 if (!string_format_from(opt_remote, &from, "/%s", value))
6202 load_git_config(void)
6204 return read_properties(popen("git " GIT_CONFIG " --list", "r"),
6205 "=", read_repo_config_option);
6209 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6211 if (!opt_git_dir[0]) {
6212 string_ncopy(opt_git_dir, name, namelen);
6214 } else if (opt_is_inside_work_tree == -1) {
6215 /* This can be 3 different values depending on the
6216 * version of git being used. If git-rev-parse does not
6217 * understand --is-inside-work-tree it will simply echo
6218 * the option else either "true" or "false" is printed.
6219 * Default to true for the unknown case. */
6220 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6222 } else if (opt_cdup[0] == ' ') {
6223 string_ncopy(opt_cdup, name, namelen);
6225 if (!prefixcmp(name, "refs/heads/")) {
6226 namelen -= STRING_SIZE("refs/heads/");
6227 name += STRING_SIZE("refs/heads/");
6228 string_ncopy(opt_head, name, namelen);
6236 load_repo_info(void)
6239 FILE *pipe = popen("(git rev-parse --git-dir --is-inside-work-tree "
6240 " --show-cdup; git symbolic-ref HEAD) 2>/dev/null", "r");
6242 /* XXX: The line outputted by "--show-cdup" can be empty so
6243 * initialize it to something invalid to make it possible to
6244 * detect whether it has been set or not. */
6247 result = read_properties(pipe, "=", read_repo_info);
6248 if (opt_cdup[0] == ' ')
6255 read_properties(FILE *pipe, const char *separators,
6256 int (*read_property)(char *, size_t, char *, size_t))
6258 char buffer[BUFSIZ];
6265 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
6270 name = chomp_string(name);
6271 namelen = strcspn(name, separators);
6273 if (name[namelen]) {
6275 value = chomp_string(name + namelen + 1);
6276 valuelen = strlen(value);
6283 state = read_property(name, namelen, value, valuelen);
6286 if (state != ERR && ferror(pipe))
6299 static void __NORETURN
6302 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6308 static void __NORETURN
6309 die(const char *err, ...)
6315 va_start(args, err);
6316 fputs("tig: ", stderr);
6317 vfprintf(stderr, err, args);
6318 fputs("\n", stderr);
6325 warn(const char *msg, ...)
6329 va_start(args, msg);
6330 fputs("tig warning: ", stderr);
6331 vfprintf(stderr, msg, args);
6332 fputs("\n", stderr);
6337 main(int argc, const char *argv[])
6340 enum request request;
6343 signal(SIGINT, quit);
6345 if (setlocale(LC_ALL, "")) {
6346 char *codeset = nl_langinfo(CODESET);
6348 string_ncopy(opt_codeset, codeset, strlen(codeset));
6351 if (load_repo_info() == ERR)
6352 die("Failed to load repo info.");
6354 if (load_options() == ERR)
6355 die("Failed to load user config.");
6357 if (load_git_config() == ERR)
6358 die("Failed to load repo config.");
6360 request = parse_options(argc, argv);
6361 if (request == REQ_NONE)
6364 /* Require a git repository unless when running in pager mode. */
6365 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6366 die("Not a git repository");
6368 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6371 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6372 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6373 if (opt_iconv == ICONV_NONE)
6374 die("Failed to initialize character set conversion");
6377 if (load_refs() == ERR)
6378 die("Failed to load refs.");
6380 foreach_view (view, i)
6381 argv_from_env(view->ops->argv, view->cmd_env);
6385 while (view_driver(display[current_view], request)) {
6389 foreach_view (view, i)
6391 view = display[current_view];
6393 /* Refresh, accept single keystroke of input */
6394 key = wgetch(status_win);
6396 /* wgetch() with nodelay() enabled returns ERR when there's no
6403 request = get_keybinding(view->keymap, key);
6405 /* Some low-level request handling. This keeps access to
6406 * status_win restricted. */
6410 char *cmd = read_prompt(":");
6413 struct view *next = VIEW(REQ_VIEW_PAGER);
6414 const char *argv[SIZEOF_ARG] = { "git" };
6417 /* When running random commands, initially show the
6418 * command in the title. However, it maybe later be
6419 * overwritten if a commit line is selected. */
6420 string_ncopy(next->ref, cmd, strlen(cmd));
6422 if (!argv_from_string(argv, &argc, cmd)) {
6423 report("Too many arguments");
6424 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6425 report("Failed to format command");
6427 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6435 case REQ_SEARCH_BACK:
6437 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6438 char *search = read_prompt(prompt);
6441 string_ncopy(opt_search, search, strlen(search));
6446 case REQ_SCREEN_RESIZE:
6450 getmaxyx(stdscr, height, width);
6452 /* Resize the status view and let the view driver take
6453 * care of resizing the displayed views. */
6454 wresize(status_win, 1, width);
6455 mvwin(status_win, height - 1, 0);
6456 wrefresh(status_win);