1 /* Copyright (c) 2006 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.
15 #define VERSION "unknown-version"
30 #include <sys/types.h>
44 #define __NORETURN __attribute__((__noreturn__))
49 static void __NORETURN
die(const char *err
, ...);
50 static void report(const char *msg
, ...);
51 static int read_properties(FILE *pipe
, const char *separators
, int (*read
)(char *, size_t, char *, size_t));
52 static void set_nonblocking_input(bool loading
);
53 static size_t utf8_length(const char *string
, size_t max_width
, int *coloffset
, int *trimmed
);
55 #define ABS(x) ((x) >= 0 ? (x) : -(x))
56 #define MIN(x, y) ((x) < (y) ? (x) : (y))
58 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
59 #define STRING_SIZE(x) (sizeof(x) - 1)
61 #define SIZEOF_STR 1024 /* Default string size. */
62 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
63 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL */
67 #define REVGRAPH_INIT 'I'
68 #define REVGRAPH_MERGE 'M'
69 #define REVGRAPH_BRANCH '+'
70 #define REVGRAPH_COMMIT '*'
71 #define REVGRAPH_LINE '|'
73 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
75 /* This color name can be used to refer to the default term colors. */
76 #define COLOR_DEFAULT (-1)
78 #define ICONV_NONE ((iconv_t) -1)
80 /* The format and size of the date column in the main view. */
81 #define DATE_FORMAT "%Y-%m-%d %H:%M"
82 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
84 #define AUTHOR_COLS 20
86 /* The default interval between line numbers. */
87 #define NUMBER_INTERVAL 1
91 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
93 #define TIG_LS_REMOTE \
94 "git ls-remote $(git rev-parse --git-dir) 2>/dev/null"
96 #define TIG_DIFF_CMD \
97 "git show --root --patch-with-stat --find-copies-harder -B -C %s 2>/dev/null"
100 "git log --cc --stat -n100 %s 2>/dev/null"
102 #define TIG_MAIN_CMD \
103 "git log --topo-order --pretty=raw %s 2>/dev/null"
105 #define TIG_TREE_CMD \
108 #define TIG_BLOB_CMD \
109 "git cat-file blob %s"
111 /* XXX: Needs to be defined to the empty string. */
112 #define TIG_HELP_CMD ""
113 #define TIG_PAGER_CMD ""
114 #define TIG_STATUS_CMD ""
116 /* Some ascii-shorthands fitted into the ncurses namespace. */
118 #define KEY_RETURN '\r'
123 char *name
; /* Ref name; tag or head names are shortened. */
124 char id
[SIZEOF_REV
]; /* Commit SHA1 ID */
125 unsigned int tag
:1; /* Is it a tag? */
126 unsigned int remote
:1; /* Is it a remote ref? */
127 unsigned int next
:1; /* For ref lists: are there more refs? */
130 static struct ref
**get_refs(char *id
);
139 set_from_int_map(struct int_map
*map
, size_t map_size
,
140 int *value
, const char *name
, int namelen
)
145 for (i
= 0; i
< map_size
; i
++)
146 if (namelen
== map
[i
].namelen
&&
147 !strncasecmp(name
, map
[i
].name
, namelen
)) {
148 *value
= map
[i
].value
;
161 string_ncopy_do(char *dst
, size_t dstlen
, const char *src
, size_t srclen
)
163 if (srclen
> dstlen
- 1)
166 strncpy(dst
, src
, srclen
);
170 /* Shorthands for safely copying into a fixed buffer. */
172 #define string_copy(dst, src) \
173 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
175 #define string_ncopy(dst, src, srclen) \
176 string_ncopy_do(dst, sizeof(dst), src, srclen)
178 #define string_copy_rev(dst, src) \
179 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
181 #define string_add(dst, from, src) \
182 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
185 chomp_string(char *name
)
189 while (isspace(*name
))
192 namelen
= strlen(name
) - 1;
193 while (namelen
> 0 && isspace(name
[namelen
]))
200 string_nformat(char *buf
, size_t bufsize
, size_t *bufpos
, const char *fmt
, ...)
203 size_t pos
= bufpos ?
*bufpos
: 0;
206 pos
+= vsnprintf(buf
+ pos
, bufsize
- pos
, fmt
, args
);
212 return pos
>= bufsize ? FALSE
: TRUE
;
215 #define string_format(buf, fmt, args...) \
216 string_nformat(buf, sizeof(buf), NULL, fmt, args)
218 #define string_format_from(buf, from, fmt, args...) \
219 string_nformat(buf, sizeof(buf), from, fmt, args)
222 string_enum_compare(const char *str1
, const char *str2
, int len
)
226 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
228 /* Diff-Header == DIFF_HEADER */
229 for (i
= 0; i
< len
; i
++) {
230 if (toupper(str1
[i
]) == toupper(str2
[i
]))
233 if (string_enum_sep(str1
[i
]) &&
234 string_enum_sep(str2
[i
]))
237 return str1
[i
] - str2
[i
];
245 * NOTE: The following is a slightly modified copy of the git project's shell
246 * quoting routines found in the quote.c file.
248 * Help to copy the thing properly quoted for the shell safety. any single
249 * quote is replaced with '\'', any exclamation point is replaced with '\!',
250 * and the whole thing is enclosed in a
253 * original sq_quote result
254 * name ==> name ==> 'name'
255 * a b ==> a b ==> 'a b'
256 * a'b ==> a'\''b ==> 'a'\''b'
257 * a!b ==> a'\!'b ==> 'a'\!'b'
261 sq_quote(char buf
[SIZEOF_STR
], size_t bufsize
, const char *src
)
265 #define BUFPUT(x) do { if (bufsize < SIZEOF_STR) buf[bufsize++] = (x); } while (0)
268 while ((c
= *src
++)) {
269 if (c
== '\'' || c
== '!') {
280 if (bufsize
< SIZEOF_STR
)
292 /* XXX: Keep the view request first and in sync with views[]. */ \
293 REQ_GROUP("View switching") \
294 REQ_(VIEW_MAIN, "Show main view"), \
295 REQ_(VIEW_DIFF, "Show diff view"), \
296 REQ_(VIEW_LOG, "Show log view"), \
297 REQ_(VIEW_TREE, "Show tree view"), \
298 REQ_(VIEW_BLOB, "Show blob view"), \
299 REQ_(VIEW_HELP, "Show help page"), \
300 REQ_(VIEW_PAGER, "Show pager view"), \
301 REQ_(VIEW_STATUS, "Show status view"), \
303 REQ_GROUP("View manipulation") \
304 REQ_(ENTER, "Enter current line and scroll"), \
305 REQ_(NEXT, "Move to next"), \
306 REQ_(PREVIOUS, "Move to previous"), \
307 REQ_(VIEW_NEXT, "Move focus to next view"), \
308 REQ_(VIEW_CLOSE, "Close the current view"), \
309 REQ_(QUIT, "Close all views and quit"), \
311 REQ_GROUP("Cursor navigation") \
312 REQ_(MOVE_UP, "Move cursor one line up"), \
313 REQ_(MOVE_DOWN, "Move cursor one line down"), \
314 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
315 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
316 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
317 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
319 REQ_GROUP("Scrolling") \
320 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
321 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
322 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
323 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
325 REQ_GROUP("Searching") \
326 REQ_(SEARCH, "Search the view"), \
327 REQ_(SEARCH_BACK, "Search backwards in the view"), \
328 REQ_(FIND_NEXT, "Find next search match"), \
329 REQ_(FIND_PREV, "Find previous search match"), \
332 REQ_(NONE, "Do nothing"), \
333 REQ_(PROMPT, "Bring up the prompt"), \
334 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
335 REQ_(SCREEN_RESIZE, "Resize the screen"), \
336 REQ_(SHOW_VERSION, "Show version information"), \
337 REQ_(STOP_LOADING, "Stop all loading views"), \
338 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
339 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization")
342 /* User action requests. */
344 #define REQ_GROUP(help)
345 #define REQ_(req, help) REQ_##req
347 /* Offset all requests to avoid conflicts with ncurses getch values. */
348 REQ_OFFSET
= KEY_MAX
+ 1,
356 struct request_info
{
357 enum request request
;
363 static struct request_info req_info
[] = {
364 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
365 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
372 get_request(const char *name
)
374 int namelen
= strlen(name
);
377 for (i
= 0; i
< ARRAY_SIZE(req_info
); i
++)
378 if (req_info
[i
].namelen
== namelen
&&
379 !string_enum_compare(req_info
[i
].name
, name
, namelen
))
380 return req_info
[i
].request
;
390 static const char usage
[] =
391 "tig " VERSION
" (" __DATE__
")\n"
393 "Usage: tig [options]\n"
394 " or: tig [options] [--] [git log options]\n"
395 " or: tig [options] log [git log options]\n"
396 " or: tig [options] diff [git diff options]\n"
397 " or: tig [options] show [git show options]\n"
398 " or: tig [options] < [git command output]\n"
401 " -l Start up in log view\n"
402 " -d Start up in diff view\n"
403 " -S Start up in status view\n"
404 " -n[I], --line-number[=I] Show line numbers with given interval\n"
405 " -b[N], --tab-size[=N] Set number of spaces for tab expansion\n"
406 " -- Mark end of tig options\n"
407 " -v, --version Show version and exit\n"
408 " -h, --help Show help message and exit\n";
410 /* Option and state variables. */
411 static bool opt_line_number
= FALSE
;
412 static bool opt_rev_graph
= FALSE
;
413 static int opt_num_interval
= NUMBER_INTERVAL
;
414 static int opt_tab_size
= TABSIZE
;
415 static enum request opt_request
= REQ_VIEW_MAIN
;
416 static char opt_cmd
[SIZEOF_STR
] = "";
417 static char opt_path
[SIZEOF_STR
] = "";
418 static FILE *opt_pipe
= NULL
;
419 static char opt_encoding
[20] = "UTF-8";
420 static bool opt_utf8
= TRUE
;
421 static char opt_codeset
[20] = "UTF-8";
422 static iconv_t opt_iconv
= ICONV_NONE
;
423 static char opt_search
[SIZEOF_STR
] = "";
424 static char opt_cdup
[SIZEOF_STR
] = "";
425 static char opt_git_dir
[SIZEOF_STR
] = "";
433 check_option(char *opt
, char short_name
, char *name
, enum option_type type
, ...)
443 int namelen
= strlen(name
);
447 if (strncmp(opt
, name
, namelen
))
450 if (opt
[namelen
] == '=')
451 value
= opt
+ namelen
+ 1;
454 if (!short_name
|| opt
[1] != short_name
)
459 va_start(args
, type
);
460 if (type
== OPT_INT
) {
461 number
= va_arg(args
, int *);
463 *number
= atoi(value
);
470 /* Returns the index of log or diff command or -1 to exit. */
472 parse_options(int argc
, char *argv
[])
476 for (i
= 1; i
< argc
; i
++) {
479 if (!strcmp(opt
, "log") ||
480 !strcmp(opt
, "diff") ||
481 !strcmp(opt
, "show")) {
482 opt_request
= opt
[0] == 'l'
483 ? REQ_VIEW_LOG
: REQ_VIEW_DIFF
;
487 if (opt
[0] && opt
[0] != '-')
490 if (!strcmp(opt
, "-l")) {
491 opt_request
= REQ_VIEW_LOG
;
495 if (!strcmp(opt
, "-d")) {
496 opt_request
= REQ_VIEW_DIFF
;
500 if (!strcmp(opt
, "-S")) {
501 opt_request
= REQ_VIEW_STATUS
;
505 if (check_option(opt
, 'n', "line-number", OPT_INT
, &opt_num_interval
)) {
506 opt_line_number
= TRUE
;
510 if (check_option(opt
, 'b', "tab-size", OPT_INT
, &opt_tab_size
)) {
511 opt_tab_size
= MIN(opt_tab_size
, TABSIZE
);
515 if (check_option(opt
, 'v', "version", OPT_NONE
)) {
516 printf("tig version %s\n", VERSION
);
520 if (check_option(opt
, 'h', "help", OPT_NONE
)) {
525 if (!strcmp(opt
, "--")) {
530 die("unknown option '%s'\n\n%s", opt
, usage
);
533 if (!isatty(STDIN_FILENO
)) {
534 opt_request
= REQ_VIEW_PAGER
;
537 } else if (i
< argc
) {
540 if (opt_request
== REQ_VIEW_MAIN
)
541 /* XXX: This is vulnerable to the user overriding
542 * options required for the main view parser. */
543 string_copy(opt_cmd
, "git log --pretty=raw");
545 string_copy(opt_cmd
, "git");
546 buf_size
= strlen(opt_cmd
);
548 while (buf_size
< sizeof(opt_cmd
) && i
< argc
) {
549 opt_cmd
[buf_size
++] = ' ';
550 buf_size
= sq_quote(opt_cmd
, buf_size
, argv
[i
++]);
553 if (buf_size
>= sizeof(opt_cmd
))
554 die("command too long");
556 opt_cmd
[buf_size
] = 0;
559 if (*opt_encoding
&& strcasecmp(opt_encoding
, "UTF-8"))
567 * Line-oriented content detection.
571 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
572 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
573 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
574 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
575 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
576 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
577 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
578 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
579 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
580 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
581 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
582 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
583 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
584 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
585 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
586 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
587 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
588 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
589 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
590 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
591 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
592 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
593 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
594 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
595 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
596 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
597 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
598 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
599 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
600 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
601 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
602 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
603 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
604 LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
605 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
606 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
607 LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
608 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
609 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
610 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
611 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
612 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
613 LINE(STAT_SECTION, "", COLOR_DEFAULT, COLOR_BLUE, A_BOLD), \
614 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
615 LINE(STAT_STAGED, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
616 LINE(STAT_UNSTAGED,"", COLOR_YELLOW, COLOR_DEFAULT, 0), \
617 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0)
620 #define LINE(type, line, fg, bg, attr) \
627 const char *name
; /* Option name. */
628 int namelen
; /* Size of option name. */
629 const char *line
; /* The start of line to match. */
630 int linelen
; /* Size of string to match. */
631 int fg
, bg
, attr
; /* Color and text attributes for the lines. */
634 static struct line_info line_info
[] = {
635 #define LINE(type, line, fg, bg, attr) \
636 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
641 static enum line_type
642 get_line_type(char *line
)
644 int linelen
= strlen(line
);
647 for (type
= 0; type
< ARRAY_SIZE(line_info
); type
++)
648 /* Case insensitive search matches Signed-off-by lines better. */
649 if (linelen
>= line_info
[type
].linelen
&&
650 !strncasecmp(line_info
[type
].line
, line
, line_info
[type
].linelen
))
657 get_line_attr(enum line_type type
)
659 assert(type
< ARRAY_SIZE(line_info
));
660 return COLOR_PAIR(type
) | line_info
[type
].attr
;
663 static struct line_info
*
664 get_line_info(char *name
, int namelen
)
668 for (type
= 0; type
< ARRAY_SIZE(line_info
); type
++)
669 if (namelen
== line_info
[type
].namelen
&&
670 !string_enum_compare(line_info
[type
].name
, name
, namelen
))
671 return &line_info
[type
];
679 int default_bg
= COLOR_BLACK
;
680 int default_fg
= COLOR_WHITE
;
685 if (use_default_colors() != ERR
) {
690 for (type
= 0; type
< ARRAY_SIZE(line_info
); type
++) {
691 struct line_info
*info
= &line_info
[type
];
692 int bg
= info
->bg
== COLOR_DEFAULT ? default_bg
: info
->bg
;
693 int fg
= info
->fg
== COLOR_DEFAULT ? default_fg
: info
->fg
;
695 init_pair(type
, fg
, bg
);
703 unsigned int selected
:1;
705 void *data
; /* User data */
715 enum request request
;
716 struct keybinding
*next
;
719 static struct keybinding default_keybindings
[] = {
721 { 'm', REQ_VIEW_MAIN
},
722 { 'd', REQ_VIEW_DIFF
},
723 { 'l', REQ_VIEW_LOG
},
724 { 't', REQ_VIEW_TREE
},
725 { 'f', REQ_VIEW_BLOB
},
726 { 'p', REQ_VIEW_PAGER
},
727 { 'h', REQ_VIEW_HELP
},
728 { 'S', REQ_VIEW_STATUS
},
730 /* View manipulation */
731 { 'q', REQ_VIEW_CLOSE
},
732 { KEY_TAB
, REQ_VIEW_NEXT
},
733 { KEY_RETURN
, REQ_ENTER
},
734 { KEY_UP
, REQ_PREVIOUS
},
735 { KEY_DOWN
, REQ_NEXT
},
737 /* Cursor navigation */
738 { 'k', REQ_MOVE_UP
},
739 { 'j', REQ_MOVE_DOWN
},
740 { KEY_HOME
, REQ_MOVE_FIRST_LINE
},
741 { KEY_END
, REQ_MOVE_LAST_LINE
},
742 { KEY_NPAGE
, REQ_MOVE_PAGE_DOWN
},
743 { ' ', REQ_MOVE_PAGE_DOWN
},
744 { KEY_PPAGE
, REQ_MOVE_PAGE_UP
},
745 { 'b', REQ_MOVE_PAGE_UP
},
746 { '-', REQ_MOVE_PAGE_UP
},
749 { KEY_IC
, REQ_SCROLL_LINE_UP
},
750 { KEY_DC
, REQ_SCROLL_LINE_DOWN
},
751 { 'w', REQ_SCROLL_PAGE_UP
},
752 { 's', REQ_SCROLL_PAGE_DOWN
},
756 { '?', REQ_SEARCH_BACK
},
757 { 'n', REQ_FIND_NEXT
},
758 { 'N', REQ_FIND_PREV
},
762 { 'z', REQ_STOP_LOADING
},
763 { 'v', REQ_SHOW_VERSION
},
764 { 'r', REQ_SCREEN_REDRAW
},
765 { '.', REQ_TOGGLE_LINENO
},
766 { 'g', REQ_TOGGLE_REV_GRAPH
},
769 /* Using the ncurses SIGWINCH handler. */
770 { KEY_RESIZE
, REQ_SCREEN_RESIZE
},
773 #define KEYMAP_INFO \
785 #define KEYMAP_(name) KEYMAP_##name
790 static struct int_map keymap_table
[] = {
791 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
796 #define set_keymap(map, name) \
797 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
799 static struct keybinding
*keybindings
[ARRAY_SIZE(keymap_table
)];
802 add_keybinding(enum keymap keymap
, enum request request
, int key
)
804 struct keybinding
*keybinding
;
806 keybinding
= calloc(1, sizeof(*keybinding
));
808 die("Failed to allocate keybinding");
810 keybinding
->alias
= key
;
811 keybinding
->request
= request
;
812 keybinding
->next
= keybindings
[keymap
];
813 keybindings
[keymap
] = keybinding
;
816 /* Looks for a key binding first in the given map, then in the generic map, and
817 * lastly in the default keybindings. */
819 get_keybinding(enum keymap keymap
, int key
)
821 struct keybinding
*kbd
;
824 for (kbd
= keybindings
[keymap
]; kbd
; kbd
= kbd
->next
)
825 if (kbd
->alias
== key
)
828 for (kbd
= keybindings
[KEYMAP_GENERIC
]; kbd
; kbd
= kbd
->next
)
829 if (kbd
->alias
== key
)
832 for (i
= 0; i
< ARRAY_SIZE(default_keybindings
); i
++)
833 if (default_keybindings
[i
].alias
== key
)
834 return default_keybindings
[i
].request
;
836 return (enum request
) key
;
845 static struct key key_table
[] = {
846 { "Enter", KEY_RETURN
},
848 { "Backspace", KEY_BACKSPACE
},
850 { "Escape", KEY_ESC
},
851 { "Left", KEY_LEFT
},
852 { "Right", KEY_RIGHT
},
854 { "Down", KEY_DOWN
},
855 { "Insert", KEY_IC
},
856 { "Delete", KEY_DC
},
858 { "Home", KEY_HOME
},
860 { "PageUp", KEY_PPAGE
},
861 { "PageDown", KEY_NPAGE
},
871 { "F10", KEY_F(10) },
872 { "F11", KEY_F(11) },
873 { "F12", KEY_F(12) },
877 get_key_value(const char *name
)
881 for (i
= 0; i
< ARRAY_SIZE(key_table
); i
++)
882 if (!strcasecmp(key_table
[i
].name
, name
))
883 return key_table
[i
].value
;
885 if (strlen(name
) == 1 && isprint(*name
))
892 get_key(enum request request
)
894 static char buf
[BUFSIZ
];
895 static char key_char
[] = "'X'";
902 for (i
= 0; i
< ARRAY_SIZE(default_keybindings
); i
++) {
903 struct keybinding
*keybinding
= &default_keybindings
[i
];
907 if (keybinding
->request
!= request
)
910 for (key
= 0; key
< ARRAY_SIZE(key_table
); key
++)
911 if (key_table
[key
].value
== keybinding
->alias
)
912 seq
= key_table
[key
].name
;
915 keybinding
->alias
< 127 &&
916 isprint(keybinding
->alias
)) {
917 key_char
[1] = (char) keybinding
->alias
;
924 if (!string_format_from(buf
, &pos
, "%s%s", sep
, seq
))
925 return "Too many keybindings!";
934 * User config file handling.
937 static struct int_map color_map
[] = {
938 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
950 #define set_color(color, name) \
951 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
953 static struct int_map attr_map
[] = {
954 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
964 #define set_attribute(attr, name) \
965 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
967 static int config_lineno
;
968 static bool config_errors
;
969 static char *config_msg
;
971 /* Wants: object fgcolor bgcolor [attr] */
973 option_color_command(int argc
, char *argv
[])
975 struct line_info
*info
;
977 if (argc
!= 3 && argc
!= 4) {
978 config_msg
= "Wrong number of arguments given to color command";
982 info
= get_line_info(argv
[0], strlen(argv
[0]));
984 config_msg
= "Unknown color name";
988 if (set_color(&info
->fg
, argv
[1]) == ERR
||
989 set_color(&info
->bg
, argv
[2]) == ERR
) {
990 config_msg
= "Unknown color";
994 if (argc
== 4 && set_attribute(&info
->attr
, argv
[3]) == ERR
) {
995 config_msg
= "Unknown attribute";
1002 /* Wants: name = value */
1004 option_set_command(int argc
, char *argv
[])
1007 config_msg
= "Wrong number of arguments given to set command";
1011 if (strcmp(argv
[1], "=")) {
1012 config_msg
= "No value assigned";
1016 if (!strcmp(argv
[0], "show-rev-graph")) {
1017 opt_rev_graph
= (!strcmp(argv
[2], "1") ||
1018 !strcmp(argv
[2], "true") ||
1019 !strcmp(argv
[2], "yes"));
1023 if (!strcmp(argv
[0], "line-number-interval")) {
1024 opt_num_interval
= atoi(argv
[2]);
1028 if (!strcmp(argv
[0], "tab-size")) {
1029 opt_tab_size
= atoi(argv
[2]);
1033 if (!strcmp(argv
[0], "commit-encoding")) {
1034 char *arg
= argv
[2];
1035 int delimiter
= *arg
;
1038 switch (delimiter
) {
1041 for (arg
++, i
= 0; arg
[i
]; i
++)
1042 if (arg
[i
] == delimiter
) {
1047 string_ncopy(opt_encoding
, arg
, strlen(arg
));
1052 config_msg
= "Unknown variable name";
1056 /* Wants: mode request key */
1058 option_bind_command(int argc
, char *argv
[])
1060 enum request request
;
1065 config_msg
= "Wrong number of arguments given to bind command";
1069 if (set_keymap(&keymap
, argv
[0]) == ERR
) {
1070 config_msg
= "Unknown key map";
1074 key
= get_key_value(argv
[1]);
1076 config_msg
= "Unknown key";
1080 request
= get_request(argv
[2]);
1081 if (request
== REQ_UNKNOWN
) {
1082 config_msg
= "Unknown request name";
1086 add_keybinding(keymap
, request
, key
);
1092 set_option(char *opt
, char *value
)
1099 while (argc
< ARRAY_SIZE(argv
) && (valuelen
= strcspn(value
, " \t"))) {
1100 argv
[argc
++] = value
;
1107 while (isspace(*value
))
1111 if (!strcmp(opt
, "color"))
1112 return option_color_command(argc
, argv
);
1114 if (!strcmp(opt
, "set"))
1115 return option_set_command(argc
, argv
);
1117 if (!strcmp(opt
, "bind"))
1118 return option_bind_command(argc
, argv
);
1120 config_msg
= "Unknown option command";
1125 read_option(char *opt
, size_t optlen
, char *value
, size_t valuelen
)
1130 config_msg
= "Internal error";
1132 /* Check for comment markers, since read_properties() will
1133 * only ensure opt and value are split at first " \t". */
1134 optlen
= strcspn(opt
, "#");
1138 if (opt
[optlen
] != 0) {
1139 config_msg
= "No option value";
1143 /* Look for comment endings in the value. */
1144 size_t len
= strcspn(value
, "#");
1146 if (len
< valuelen
) {
1148 value
[valuelen
] = 0;
1151 status
= set_option(opt
, value
);
1154 if (status
== ERR
) {
1155 fprintf(stderr
, "Error on line %d, near '%.*s': %s\n",
1156 config_lineno
, optlen
, opt
, config_msg
);
1157 config_errors
= TRUE
;
1160 /* Always keep going if errors are encountered. */
1167 char *home
= getenv("HOME");
1168 char buf
[SIZEOF_STR
];
1172 config_errors
= FALSE
;
1174 if (!home
|| !string_format(buf
, "%s/.tigrc", home
))
1177 /* It's ok that the file doesn't exist. */
1178 file
= fopen(buf
, "r");
1182 if (read_properties(file
, " \t", read_option
) == ERR
||
1183 config_errors
== TRUE
)
1184 fprintf(stderr
, "Errors while loading %s.\n", buf
);
1197 /* The display array of active views and the index of the current view. */
1198 static struct view
*display
[2];
1199 static unsigned int current_view
;
1201 /* Reading from the prompt? */
1202 static bool input_mode
= FALSE
;
1204 #define foreach_displayed_view(view, i) \
1205 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1207 #define displayed_views() (display[1] != NULL ? 2 : 1)
1209 /* Current head and commit ID */
1210 static char ref_blob
[SIZEOF_REF
] = "";
1211 static char ref_commit
[SIZEOF_REF
] = "HEAD";
1212 static char ref_head
[SIZEOF_REF
] = "HEAD";
1215 const char *name
; /* View name */
1216 const char *cmd_fmt
; /* Default command line format */
1217 const char *cmd_env
; /* Command line set via environment */
1218 const char *id
; /* Points to either of ref_{head,commit,blob} */
1220 struct view_ops
*ops
; /* View operations */
1222 enum keymap keymap
; /* What keymap does this view have */
1224 char cmd
[SIZEOF_STR
]; /* Command buffer */
1225 char ref
[SIZEOF_REF
]; /* Hovered commit reference */
1226 char vid
[SIZEOF_REF
]; /* View ID. Set to id member when updating. */
1228 int height
, width
; /* The width and height of the main window */
1229 WINDOW
*win
; /* The main window */
1230 WINDOW
*title
; /* The title window living below the main window */
1233 unsigned long offset
; /* Offset of the window top */
1234 unsigned long lineno
; /* Current line number */
1237 char grep
[SIZEOF_STR
]; /* Search string */
1238 regex_t
*regex
; /* Pre-compiled regex */
1240 /* If non-NULL, points to the view that opened this view. If this view
1241 * is closed tig will switch back to the parent view. */
1242 struct view
*parent
;
1245 unsigned long lines
; /* Total number of lines */
1246 struct line
*line
; /* Line index */
1247 unsigned long line_size
;/* Total number of allocated lines */
1248 unsigned int digits
; /* Number of digits in the lines member. */
1256 /* What type of content being displayed. Used in the title bar. */
1258 /* Open and reads in all view content. */
1259 bool (*open
)(struct view
*view
);
1260 /* Read one line; updates view->line. */
1261 bool (*read
)(struct view
*view
, char *data
);
1262 /* Draw one line; @lineno must be < view->height. */
1263 bool (*draw
)(struct view
*view
, struct line
*line
, unsigned int lineno
, bool selected
);
1264 /* Depending on view, change display based on current line. */
1265 bool (*enter
)(struct view
*view
, struct line
*line
);
1266 /* Search for regex in a line. */
1267 bool (*grep
)(struct view
*view
, struct line
*line
);
1269 void (*select
)(struct view
*view
, struct line
*line
);
1272 static struct view_ops pager_ops
;
1273 static struct view_ops main_ops
;
1274 static struct view_ops tree_ops
;
1275 static struct view_ops blob_ops
;
1276 static struct view_ops help_ops
;
1277 static struct view_ops status_ops
;
1279 #define VIEW_STR(name, cmd, env, ref, ops, map) \
1280 { name, cmd, #env, ref, ops, map}
1282 #define VIEW_(id, name, ops, ref) \
1283 VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id)
1286 static struct view views
[] = {
1287 VIEW_(MAIN
, "main", &main_ops
, ref_head
),
1288 VIEW_(DIFF
, "diff", &pager_ops
, ref_commit
),
1289 VIEW_(LOG
, "log", &pager_ops
, ref_head
),
1290 VIEW_(TREE
, "tree", &tree_ops
, ref_commit
),
1291 VIEW_(BLOB
, "blob", &blob_ops
, ref_blob
),
1292 VIEW_(HELP
, "help", &help_ops
, ""),
1293 VIEW_(PAGER
, "pager", &pager_ops
, ""),
1294 VIEW_(STATUS
, "status", &status_ops
, ""),
1297 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1299 #define foreach_view(view, i) \
1300 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1302 #define view_is_displayed(view) \
1303 (view == display[0] || view == display[1])
1306 draw_view_line(struct view
*view
, unsigned int lineno
)
1309 bool selected
= (view
->offset
+ lineno
== view
->lineno
);
1312 assert(view_is_displayed(view
));
1314 if (view
->offset
+ lineno
>= view
->lines
)
1317 line
= &view
->line
[view
->offset
+ lineno
];
1320 line
->selected
= TRUE
;
1321 view
->ops
->select(view
, line
);
1322 } else if (line
->selected
) {
1323 line
->selected
= FALSE
;
1324 wmove(view
->win
, lineno
, 0);
1325 wclrtoeol(view
->win
);
1328 scrollok(view
->win
, FALSE
);
1329 draw_ok
= view
->ops
->draw(view
, line
, lineno
, selected
);
1330 scrollok(view
->win
, TRUE
);
1336 redraw_view_from(struct view
*view
, int lineno
)
1338 assert(0 <= lineno
&& lineno
< view
->height
);
1340 for (; lineno
< view
->height
; lineno
++) {
1341 if (!draw_view_line(view
, lineno
))
1345 redrawwin(view
->win
);
1347 wnoutrefresh(view
->win
);
1349 wrefresh(view
->win
);
1353 redraw_view(struct view
*view
)
1356 redraw_view_from(view
, 0);
1361 update_view_title(struct view
*view
)
1363 char buf
[SIZEOF_STR
];
1364 char state
[SIZEOF_STR
];
1365 size_t bufpos
= 0, statelen
= 0;
1367 assert(view_is_displayed(view
));
1369 if (view
->lines
|| view
->pipe
) {
1370 unsigned int view_lines
= view
->offset
+ view
->height
;
1371 unsigned int lines
= view
->lines
1372 ?
MIN(view_lines
, view
->lines
) * 100 / view
->lines
1375 string_format_from(state
, &statelen
, "- %s %d of %d (%d%%)",
1382 time_t secs
= time(NULL
) - view
->start_time
;
1384 /* Three git seconds are a long time ... */
1386 string_format_from(state
, &statelen
, " %lds", secs
);
1390 string_format_from(buf
, &bufpos
, "[%s]", view
->name
);
1391 if (*view
->ref
&& bufpos
< view
->width
) {
1392 size_t refsize
= strlen(view
->ref
);
1393 size_t minsize
= bufpos
+ 1 + /* abbrev= */ 7 + 1 + statelen
;
1395 if (minsize
< view
->width
)
1396 refsize
= view
->width
- minsize
+ 7;
1397 string_format_from(buf
, &bufpos
, " %.*s", refsize
, view
->ref
);
1400 if (statelen
&& bufpos
< view
->width
) {
1401 string_format_from(buf
, &bufpos
, " %s", state
);
1404 if (view
== display
[current_view
])
1405 wbkgdset(view
->title
, get_line_attr(LINE_TITLE_FOCUS
));
1407 wbkgdset(view
->title
, get_line_attr(LINE_TITLE_BLUR
));
1409 mvwaddnstr(view
->title
, 0, 0, buf
, bufpos
);
1410 wclrtoeol(view
->title
);
1411 wmove(view
->title
, 0, view
->width
- 1);
1414 wnoutrefresh(view
->title
);
1416 wrefresh(view
->title
);
1420 resize_display(void)
1423 struct view
*base
= display
[0];
1424 struct view
*view
= display
[1] ? display
[1] : display
[0];
1426 /* Setup window dimensions */
1428 getmaxyx(stdscr
, base
->height
, base
->width
);
1430 /* Make room for the status window. */
1434 /* Horizontal split. */
1435 view
->width
= base
->width
;
1436 view
->height
= SCALE_SPLIT_VIEW(base
->height
);
1437 base
->height
-= view
->height
;
1439 /* Make room for the title bar. */
1443 /* Make room for the title bar. */
1448 foreach_displayed_view (view
, i
) {
1450 view
->win
= newwin(view
->height
, 0, offset
, 0);
1452 die("Failed to create %s view", view
->name
);
1454 scrollok(view
->win
, TRUE
);
1456 view
->title
= newwin(1, 0, offset
+ view
->height
, 0);
1458 die("Failed to create title window");
1461 wresize(view
->win
, view
->height
, view
->width
);
1462 mvwin(view
->win
, offset
, 0);
1463 mvwin(view
->title
, offset
+ view
->height
, 0);
1466 offset
+= view
->height
+ 1;
1471 redraw_display(void)
1476 foreach_displayed_view (view
, i
) {
1478 update_view_title(view
);
1483 update_display_cursor(struct view
*view
)
1485 /* Move the cursor to the right-most column of the cursor line.
1487 * XXX: This could turn out to be a bit expensive, but it ensures that
1488 * the cursor does not jump around. */
1490 wmove(view
->win
, view
->lineno
- view
->offset
, view
->width
- 1);
1491 wrefresh(view
->win
);
1499 /* Scrolling backend */
1501 do_scroll_view(struct view
*view
, int lines
)
1503 bool redraw_current_line
= FALSE
;
1505 /* The rendering expects the new offset. */
1506 view
->offset
+= lines
;
1508 assert(0 <= view
->offset
&& view
->offset
< view
->lines
);
1511 /* Move current line into the view. */
1512 if (view
->lineno
< view
->offset
) {
1513 view
->lineno
= view
->offset
;
1514 redraw_current_line
= TRUE
;
1515 } else if (view
->lineno
>= view
->offset
+ view
->height
) {
1516 view
->lineno
= view
->offset
+ view
->height
- 1;
1517 redraw_current_line
= TRUE
;
1520 assert(view
->offset
<= view
->lineno
&& view
->lineno
< view
->lines
);
1522 /* Redraw the whole screen if scrolling is pointless. */
1523 if (view
->height
< ABS(lines
)) {
1527 int line
= lines
> 0 ? view
->height
- lines
: 0;
1528 int end
= line
+ ABS(lines
);
1530 wscrl(view
->win
, lines
);
1532 for (; line
< end
; line
++) {
1533 if (!draw_view_line(view
, line
))
1537 if (redraw_current_line
)
1538 draw_view_line(view
, view
->lineno
- view
->offset
);
1541 redrawwin(view
->win
);
1542 wrefresh(view
->win
);
1546 /* Scroll frontend */
1548 scroll_view(struct view
*view
, enum request request
)
1552 assert(view_is_displayed(view
));
1555 case REQ_SCROLL_PAGE_DOWN
:
1556 lines
= view
->height
;
1557 case REQ_SCROLL_LINE_DOWN
:
1558 if (view
->offset
+ lines
> view
->lines
)
1559 lines
= view
->lines
- view
->offset
;
1561 if (lines
== 0 || view
->offset
+ view
->height
>= view
->lines
) {
1562 report("Cannot scroll beyond the last line");
1567 case REQ_SCROLL_PAGE_UP
:
1568 lines
= view
->height
;
1569 case REQ_SCROLL_LINE_UP
:
1570 if (lines
> view
->offset
)
1571 lines
= view
->offset
;
1574 report("Cannot scroll beyond the first line");
1582 die("request %d not handled in switch", request
);
1585 do_scroll_view(view
, lines
);
1590 move_view(struct view
*view
, enum request request
)
1592 int scroll_steps
= 0;
1596 case REQ_MOVE_FIRST_LINE
:
1597 steps
= -view
->lineno
;
1600 case REQ_MOVE_LAST_LINE
:
1601 steps
= view
->lines
- view
->lineno
- 1;
1604 case REQ_MOVE_PAGE_UP
:
1605 steps
= view
->height
> view
->lineno
1606 ?
-view
->lineno
: -view
->height
;
1609 case REQ_MOVE_PAGE_DOWN
:
1610 steps
= view
->lineno
+ view
->height
>= view
->lines
1611 ? view
->lines
- view
->lineno
- 1 : view
->height
;
1623 die("request %d not handled in switch", request
);
1626 if (steps
<= 0 && view
->lineno
== 0) {
1627 report("Cannot move beyond the first line");
1630 } else if (steps
>= 0 && view
->lineno
+ 1 >= view
->lines
) {
1631 report("Cannot move beyond the last line");
1635 /* Move the current line */
1636 view
->lineno
+= steps
;
1637 assert(0 <= view
->lineno
&& view
->lineno
< view
->lines
);
1639 /* Check whether the view needs to be scrolled */
1640 if (view
->lineno
< view
->offset
||
1641 view
->lineno
>= view
->offset
+ view
->height
) {
1642 scroll_steps
= steps
;
1643 if (steps
< 0 && -steps
> view
->offset
) {
1644 scroll_steps
= -view
->offset
;
1646 } else if (steps
> 0) {
1647 if (view
->lineno
== view
->lines
- 1 &&
1648 view
->lines
> view
->height
) {
1649 scroll_steps
= view
->lines
- view
->offset
- 1;
1650 if (scroll_steps
>= view
->height
)
1651 scroll_steps
-= view
->height
- 1;
1656 if (!view_is_displayed(view
)) {
1657 view
->offset
+= scroll_steps
;
1658 assert(0 <= view
->offset
&& view
->offset
< view
->lines
);
1659 view
->ops
->select(view
, &view
->line
[view
->lineno
]);
1663 /* Repaint the old "current" line if we be scrolling */
1664 if (ABS(steps
) < view
->height
)
1665 draw_view_line(view
, view
->lineno
- steps
- view
->offset
);
1668 do_scroll_view(view
, scroll_steps
);
1672 /* Draw the current line */
1673 draw_view_line(view
, view
->lineno
- view
->offset
);
1675 redrawwin(view
->win
);
1676 wrefresh(view
->win
);
1685 static void search_view(struct view
*view
, enum request request
);
1688 find_next_line(struct view
*view
, unsigned long lineno
, struct line
*line
)
1690 assert(view_is_displayed(view
));
1692 if (!view
->ops
->grep(view
, line
))
1695 if (lineno
- view
->offset
>= view
->height
) {
1696 view
->offset
= lineno
;
1697 view
->lineno
= lineno
;
1701 unsigned long old_lineno
= view
->lineno
- view
->offset
;
1703 view
->lineno
= lineno
;
1704 draw_view_line(view
, old_lineno
);
1706 draw_view_line(view
, view
->lineno
- view
->offset
);
1707 redrawwin(view
->win
);
1708 wrefresh(view
->win
);
1711 report("Line %ld matches '%s'", lineno
+ 1, view
->grep
);
1716 find_next(struct view
*view
, enum request request
)
1718 unsigned long lineno
= view
->lineno
;
1723 report("No previous search");
1725 search_view(view
, request
);
1735 case REQ_SEARCH_BACK
:
1744 if (request
== REQ_FIND_NEXT
|| request
== REQ_FIND_PREV
)
1745 lineno
+= direction
;
1747 /* Note, lineno is unsigned long so will wrap around in which case it
1748 * will become bigger than view->lines. */
1749 for (; lineno
< view
->lines
; lineno
+= direction
) {
1750 struct line
*line
= &view
->line
[lineno
];
1752 if (find_next_line(view
, lineno
, line
))
1756 report("No match found for '%s'", view
->grep
);
1760 search_view(struct view
*view
, enum request request
)
1765 regfree(view
->regex
);
1768 view
->regex
= calloc(1, sizeof(*view
->regex
));
1773 regex_err
= regcomp(view
->regex
, opt_search
, REG_EXTENDED
);
1774 if (regex_err
!= 0) {
1775 char buf
[SIZEOF_STR
] = "unknown error";
1777 regerror(regex_err
, view
->regex
, buf
, sizeof(buf
));
1778 report("Search failed: %s", buf
);
1782 string_copy(view
->grep
, opt_search
);
1784 find_next(view
, request
);
1788 * Incremental updating
1792 end_update(struct view
*view
)
1796 set_nonblocking_input(FALSE
);
1797 if (view
->pipe
== stdin
)
1805 begin_update(struct view
*view
)
1811 string_copy(view
->cmd
, opt_cmd
);
1813 /* When running random commands, initially show the
1814 * command in the title. However, it maybe later be
1815 * overwritten if a commit line is selected. */
1816 string_copy(view
->ref
, view
->cmd
);
1818 } else if (view
== VIEW(REQ_VIEW_TREE
)) {
1819 const char *format
= view
->cmd_env ? view
->cmd_env
: view
->cmd_fmt
;
1820 char path
[SIZEOF_STR
];
1822 if (strcmp(view
->vid
, view
->id
))
1823 opt_path
[0] = path
[0] = 0;
1824 else if (sq_quote(path
, 0, opt_path
) >= sizeof(path
))
1827 if (!string_format(view
->cmd
, format
, view
->id
, path
))
1831 const char *format
= view
->cmd_env ? view
->cmd_env
: view
->cmd_fmt
;
1832 const char *id
= view
->id
;
1834 if (!string_format(view
->cmd
, format
, id
, id
, id
, id
, id
))
1837 /* Put the current ref_* value to the view title ref
1838 * member. This is needed by the blob view. Most other
1839 * views sets it automatically after loading because the
1840 * first line is a commit line. */
1841 string_copy_rev(view
->ref
, view
->id
);
1844 /* Special case for the pager view. */
1846 view
->pipe
= opt_pipe
;
1849 view
->pipe
= popen(view
->cmd
, "r");
1855 set_nonblocking_input(TRUE
);
1860 string_copy_rev(view
->vid
, view
->id
);
1865 for (i
= 0; i
< view
->lines
; i
++)
1866 if (view
->line
[i
].data
)
1867 free(view
->line
[i
].data
);
1873 view
->start_time
= time(NULL
);
1878 static struct line
*
1879 realloc_lines(struct view
*view
, size_t line_size
)
1881 struct line
*tmp
= realloc(view
->line
, sizeof(*view
->line
) * line_size
);
1887 view
->line_size
= line_size
;
1892 update_view(struct view
*view
)
1894 char in_buffer
[BUFSIZ
];
1895 char out_buffer
[BUFSIZ
* 2];
1897 /* The number of lines to read. If too low it will cause too much
1898 * redrawing (and possible flickering), if too high responsiveness
1900 unsigned long lines
= view
->height
;
1901 int redraw_from
= -1;
1906 /* Only redraw if lines are visible. */
1907 if (view
->offset
+ view
->height
>= view
->lines
)
1908 redraw_from
= view
->lines
- view
->offset
;
1910 /* FIXME: This is probably not perfect for backgrounded views. */
1911 if (!realloc_lines(view
, view
->lines
+ lines
))
1914 while ((line
= fgets(in_buffer
, sizeof(in_buffer
), view
->pipe
))) {
1915 size_t linelen
= strlen(line
);
1918 line
[linelen
- 1] = 0;
1920 if (opt_iconv
!= ICONV_NONE
) {
1922 size_t inlen
= linelen
;
1924 char *outbuf
= out_buffer
;
1925 size_t outlen
= sizeof(out_buffer
);
1929 ret
= iconv(opt_iconv
, &inbuf
, &inlen
, &outbuf
, &outlen
);
1930 if (ret
!= (size_t) -1) {
1932 linelen
= strlen(out_buffer
);
1936 if (!view
->ops
->read(view
, line
))
1946 lines
= view
->lines
;
1947 for (digits
= 0; lines
; digits
++)
1950 /* Keep the displayed view in sync with line number scaling. */
1951 if (digits
!= view
->digits
) {
1952 view
->digits
= digits
;
1957 if (!view_is_displayed(view
))
1960 if (view
== VIEW(REQ_VIEW_TREE
)) {
1961 /* Clear the view and redraw everything since the tree sorting
1962 * might have rearranged things. */
1965 } else if (redraw_from
>= 0) {
1966 /* If this is an incremental update, redraw the previous line
1967 * since for commits some members could have changed when
1968 * loading the main view. */
1969 if (redraw_from
> 0)
1972 /* Since revision graph visualization requires knowledge
1973 * about the parent commit, it causes a further one-off
1974 * needed to be redrawn for incremental updates. */
1975 if (redraw_from
> 0 && opt_rev_graph
)
1978 /* Incrementally draw avoids flickering. */
1979 redraw_view_from(view
, redraw_from
);
1982 /* Update the title _after_ the redraw so that if the redraw picks up a
1983 * commit reference in view->ref it'll be available here. */
1984 update_view_title(view
);
1987 if (ferror(view
->pipe
)) {
1988 report("Failed to read: %s", strerror(errno
));
1991 } else if (feof(view
->pipe
)) {
1999 report("Allocation failure");
2002 view
->ops
->read(view
, NULL
);
2007 static struct line
*
2008 add_line_data(struct view
*view
, void *data
, enum line_type type
)
2010 struct line
*line
= &view
->line
[view
->lines
++];
2012 memset(line
, 0, sizeof(*line
));
2019 static struct line
*
2020 add_line_text(struct view
*view
, char *data
, enum line_type type
)
2023 data
= strdup(data
);
2025 return data ?
add_line_data(view
, data
, type
) : NULL
;
2034 OPEN_DEFAULT
= 0, /* Use default view switching. */
2035 OPEN_SPLIT
= 1, /* Split current view. */
2036 OPEN_BACKGROUNDED
= 2, /* Backgrounded. */
2037 OPEN_RELOAD
= 4, /* Reload view even if it is the current. */
2041 open_view(struct view
*prev
, enum request request
, enum open_flags flags
)
2043 bool backgrounded
= !!(flags
& OPEN_BACKGROUNDED
);
2044 bool split
= !!(flags
& OPEN_SPLIT
);
2045 bool reload
= !!(flags
& OPEN_RELOAD
);
2046 struct view
*view
= VIEW(request
);
2047 int nviews
= displayed_views();
2048 struct view
*base_view
= display
[0];
2050 if (view
== prev
&& nviews
== 1 && !reload
) {
2051 report("Already in %s view", view
->name
);
2055 if (view
->ops
->open
) {
2056 if (!view
->ops
->open(view
)) {
2057 report("Failed to load %s view", view
->name
);
2061 } else if ((reload
|| strcmp(view
->vid
, view
->id
)) &&
2062 !begin_update(view
)) {
2063 report("Failed to load %s view", view
->name
);
2072 /* Maximize the current view. */
2073 memset(display
, 0, sizeof(display
));
2075 display
[current_view
] = view
;
2078 /* Resize the view when switching between split- and full-screen,
2079 * or when switching between two different full-screen views. */
2080 if (nviews
!= displayed_views() ||
2081 (nviews
== 1 && base_view
!= display
[0]))
2084 if (split
&& prev
->lineno
- prev
->offset
>= prev
->height
) {
2085 /* Take the title line into account. */
2086 int lines
= prev
->lineno
- prev
->offset
- prev
->height
+ 1;
2088 /* Scroll the view that was split if the current line is
2089 * outside the new limited view. */
2090 do_scroll_view(prev
, lines
);
2093 if (prev
&& view
!= prev
) {
2094 if (split
&& !backgrounded
) {
2095 /* "Blur" the previous view. */
2096 update_view_title(prev
);
2099 view
->parent
= prev
;
2102 if (view
->pipe
&& view
->lines
== 0) {
2103 /* Clear the old view and let the incremental updating refill
2112 /* If the view is backgrounded the above calls to report()
2113 * won't redraw the view title. */
2115 update_view_title(view
);
2120 * User request switch noodle
2124 view_driver(struct view
*view
, enum request request
)
2131 case REQ_MOVE_PAGE_UP
:
2132 case REQ_MOVE_PAGE_DOWN
:
2133 case REQ_MOVE_FIRST_LINE
:
2134 case REQ_MOVE_LAST_LINE
:
2135 move_view(view
, request
);
2138 case REQ_SCROLL_LINE_DOWN
:
2139 case REQ_SCROLL_LINE_UP
:
2140 case REQ_SCROLL_PAGE_DOWN
:
2141 case REQ_SCROLL_PAGE_UP
:
2142 scroll_view(view
, request
);
2147 report("No file chosen, press %s to open tree view",
2148 get_key(REQ_VIEW_TREE
));
2151 open_view(view
, request
, OPEN_DEFAULT
);
2154 case REQ_VIEW_PAGER
:
2155 if (!VIEW(REQ_VIEW_PAGER
)->lines
) {
2156 report("No pager content, press %s to run command from prompt",
2157 get_key(REQ_PROMPT
));
2160 open_view(view
, request
, OPEN_DEFAULT
);
2168 case REQ_VIEW_STATUS
:
2169 open_view(view
, request
, OPEN_DEFAULT
);
2174 request
= request
== REQ_NEXT ? REQ_MOVE_DOWN
: REQ_MOVE_UP
;
2176 if ((view
== VIEW(REQ_VIEW_DIFF
) &&
2177 view
->parent
== VIEW(REQ_VIEW_MAIN
)) ||
2178 (view
== VIEW(REQ_VIEW_BLOB
) &&
2179 view
->parent
== VIEW(REQ_VIEW_TREE
))) {
2180 view
= view
->parent
;
2181 move_view(view
, request
);
2182 if (view_is_displayed(view
))
2183 update_view_title(view
);
2185 move_view(view
, request
);
2192 report("Nothing to enter");
2195 return view
->ops
->enter(view
, &view
->line
[view
->lineno
]);
2199 int nviews
= displayed_views();
2200 int next_view
= (current_view
+ 1) % nviews
;
2202 if (next_view
== current_view
) {
2203 report("Only one view is displayed");
2207 current_view
= next_view
;
2208 /* Blur out the title of the previous view. */
2209 update_view_title(view
);
2213 case REQ_TOGGLE_LINENO
:
2214 opt_line_number
= !opt_line_number
;
2218 case REQ_TOGGLE_REV_GRAPH
:
2219 opt_rev_graph
= !opt_rev_graph
;
2224 /* Always reload^Wrerun commands from the prompt. */
2225 open_view(view
, opt_request
, OPEN_RELOAD
);
2229 case REQ_SEARCH_BACK
:
2230 search_view(view
, request
);
2235 find_next(view
, request
);
2238 case REQ_STOP_LOADING
:
2239 for (i
= 0; i
< ARRAY_SIZE(views
); i
++) {
2242 report("Stopped loading the %s view", view
->name
),
2247 case REQ_SHOW_VERSION
:
2248 report("tig-%s (built %s)", VERSION
, __DATE__
);
2251 case REQ_SCREEN_RESIZE
:
2254 case REQ_SCREEN_REDRAW
:
2262 case REQ_VIEW_CLOSE
:
2263 /* XXX: Mark closed views by letting view->parent point to the
2264 * view itself. Parents to closed view should never be
2267 view
->parent
->parent
!= view
->parent
) {
2268 memset(display
, 0, sizeof(display
));
2270 display
[current_view
] = view
->parent
;
2271 view
->parent
= view
;
2281 /* An unknown key will show most commonly used commands. */
2282 report("Unknown key, press 'h' for help");
2295 pager_draw(struct view
*view
, struct line
*line
, unsigned int lineno
, bool selected
)
2297 char *text
= line
->data
;
2298 enum line_type type
= line
->type
;
2299 int textlen
= strlen(text
);
2302 wmove(view
->win
, lineno
, 0);
2306 wchgat(view
->win
, -1, 0, type
, NULL
);
2309 attr
= get_line_attr(type
);
2310 wattrset(view
->win
, attr
);
2312 if (opt_line_number
|| opt_tab_size
< TABSIZE
) {
2313 static char spaces
[] = " ";
2314 int col_offset
= 0, col
= 0;
2316 if (opt_line_number
) {
2317 unsigned long real_lineno
= view
->offset
+ lineno
+ 1;
2319 if (real_lineno
== 1 ||
2320 (real_lineno
% opt_num_interval
) == 0) {
2321 wprintw(view
->win
, "%.*d", view
->digits
, real_lineno
);
2324 waddnstr(view
->win
, spaces
,
2325 MIN(view
->digits
, STRING_SIZE(spaces
)));
2327 waddstr(view
->win
, ": ");
2328 col_offset
= view
->digits
+ 2;
2331 while (text
&& col_offset
+ col
< view
->width
) {
2332 int cols_max
= view
->width
- col_offset
- col
;
2336 if (*text
== '\t') {
2338 assert(sizeof(spaces
) > TABSIZE
);
2340 cols
= opt_tab_size
- (col
% opt_tab_size
);
2343 text
= strchr(text
, '\t');
2344 cols
= line ? text
- pos
: strlen(pos
);
2347 waddnstr(view
->win
, pos
, MIN(cols
, cols_max
));
2352 int col
= 0, pos
= 0;
2354 for (; pos
< textlen
&& col
< view
->width
; pos
++, col
++)
2355 if (text
[pos
] == '\t')
2356 col
+= TABSIZE
- (col
% TABSIZE
) - 1;
2358 waddnstr(view
->win
, text
, pos
);
2365 add_describe_ref(char *buf
, size_t *bufpos
, char *commit_id
, const char *sep
)
2367 char refbuf
[SIZEOF_STR
];
2371 if (!string_format(refbuf
, "git describe %s 2>/dev/null", commit_id
))
2374 pipe
= popen(refbuf
, "r");
2378 if ((ref
= fgets(refbuf
, sizeof(refbuf
), pipe
)))
2379 ref
= chomp_string(ref
);
2385 /* This is the only fatal call, since it can "corrupt" the buffer. */
2386 if (!string_nformat(buf
, SIZEOF_STR
, bufpos
, "%s%s", sep
, ref
))
2393 add_pager_refs(struct view
*view
, struct line
*line
)
2395 char buf
[SIZEOF_STR
];
2396 char *commit_id
= line
->data
+ STRING_SIZE("commit ");
2398 size_t bufpos
= 0, refpos
= 0;
2399 const char *sep
= "Refs: ";
2400 bool is_tag
= FALSE
;
2402 assert(line
->type
== LINE_COMMIT
);
2404 refs
= get_refs(commit_id
);
2406 if (view
== VIEW(REQ_VIEW_DIFF
))
2407 goto try_add_describe_ref
;
2412 struct ref
*ref
= refs
[refpos
];
2413 char *fmt
= ref
->tag ?
"%s[%s]" :
2414 ref
->remote ?
"%s<%s>" : "%s%s";
2416 if (!string_format_from(buf
, &bufpos
, fmt
, sep
, ref
->name
))
2421 } while (refs
[refpos
++]->next
);
2423 if (!is_tag
&& view
== VIEW(REQ_VIEW_DIFF
)) {
2424 try_add_describe_ref
:
2425 /* Add <tag>-g<commit_id> "fake" reference. */
2426 if (!add_describe_ref(buf
, &bufpos
, commit_id
, sep
))
2433 if (!realloc_lines(view
, view
->line_size
+ 1))
2436 add_line_text(view
, buf
, LINE_PP_REFS
);
2440 pager_read(struct view
*view
, char *data
)
2447 line
= add_line_text(view
, data
, get_line_type(data
));
2451 if (line
->type
== LINE_COMMIT
&&
2452 (view
== VIEW(REQ_VIEW_DIFF
) ||
2453 view
== VIEW(REQ_VIEW_LOG
)))
2454 add_pager_refs(view
, line
);
2460 pager_enter(struct view
*view
, struct line
*line
)
2464 if (line
->type
== LINE_COMMIT
&&
2465 (view
== VIEW(REQ_VIEW_LOG
) ||
2466 view
== VIEW(REQ_VIEW_PAGER
))) {
2467 open_view(view
, REQ_VIEW_DIFF
, OPEN_SPLIT
);
2471 /* Always scroll the view even if it was split. That way
2472 * you can use Enter to scroll through the log view and
2473 * split open each commit diff. */
2474 scroll_view(view
, REQ_SCROLL_LINE_DOWN
);
2476 /* FIXME: A minor workaround. Scrolling the view will call report("")
2477 * but if we are scrolling a non-current view this won't properly
2478 * update the view title. */
2480 update_view_title(view
);
2486 pager_grep(struct view
*view
, struct line
*line
)
2489 char *text
= line
->data
;
2494 if (regexec(view
->regex
, text
, 1, &pmatch
, 0) == REG_NOMATCH
)
2501 pager_select(struct view
*view
, struct line
*line
)
2503 if (line
->type
== LINE_COMMIT
) {
2504 char *text
= line
->data
+ STRING_SIZE("commit ");
2506 if (view
!= VIEW(REQ_VIEW_PAGER
))
2507 string_copy_rev(view
->ref
, text
);
2508 string_copy_rev(ref_commit
, text
);
2512 static struct view_ops pager_ops
= {
2528 help_open(struct view
*view
)
2531 int lines
= ARRAY_SIZE(req_info
) + 2;
2534 if (view
->lines
> 0)
2537 for (i
= 0; i
< ARRAY_SIZE(req_info
); i
++)
2538 if (!req_info
[i
].request
)
2541 view
->line
= calloc(lines
, sizeof(*view
->line
));
2545 add_line_text(view
, "Quick reference for tig keybindings:", LINE_DEFAULT
);
2547 for (i
= 0; i
< ARRAY_SIZE(req_info
); i
++) {
2550 if (!req_info
[i
].request
) {
2551 add_line_text(view
, "", LINE_DEFAULT
);
2552 add_line_text(view
, req_info
[i
].help
, LINE_DEFAULT
);
2556 key
= get_key(req_info
[i
].request
);
2557 if (!string_format(buf
, " %-25s %s", key
, req_info
[i
].help
))
2560 add_line_text(view
, buf
, LINE_DEFAULT
);
2566 static struct view_ops help_ops
= {
2581 /* Parse output from git-ls-tree(1):
2583 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
2584 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
2585 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
2586 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
2589 #define SIZEOF_TREE_ATTR \
2590 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
2592 #define TREE_UP_FORMAT "040000 tree %s\t.."
2595 tree_compare_entry(enum line_type type1
, char *name1
,
2596 enum line_type type2
, char *name2
)
2598 if (type1
!= type2
) {
2599 if (type1
== LINE_TREE_DIR
)
2604 return strcmp(name1
, name2
);
2608 tree_read(struct view
*view
, char *text
)
2610 size_t textlen
= text ?
strlen(text
) : 0;
2611 char buf
[SIZEOF_STR
];
2613 enum line_type type
;
2614 bool first_read
= view
->lines
== 0;
2616 if (textlen
<= SIZEOF_TREE_ATTR
)
2619 type
= text
[STRING_SIZE("100644 ")] == 't'
2620 ? LINE_TREE_DIR
: LINE_TREE_FILE
;
2623 /* Add path info line */
2624 if (!string_format(buf
, "Directory path /%s", opt_path
) ||
2625 !realloc_lines(view
, view
->line_size
+ 1) ||
2626 !add_line_text(view
, buf
, LINE_DEFAULT
))
2629 /* Insert "link" to parent directory. */
2631 if (!string_format(buf
, TREE_UP_FORMAT
, view
->ref
) ||
2632 !realloc_lines(view
, view
->line_size
+ 1) ||
2633 !add_line_text(view
, buf
, LINE_TREE_DIR
))
2638 /* Strip the path part ... */
2640 size_t pathlen
= textlen
- SIZEOF_TREE_ATTR
;
2641 size_t striplen
= strlen(opt_path
);
2642 char *path
= text
+ SIZEOF_TREE_ATTR
;
2644 if (pathlen
> striplen
)
2645 memmove(path
, path
+ striplen
,
2646 pathlen
- striplen
+ 1);
2649 /* Skip "Directory ..." and ".." line. */
2650 for (pos
= 1 + !!*opt_path
; pos
< view
->lines
; pos
++) {
2651 struct line
*line
= &view
->line
[pos
];
2652 char *path1
= ((char *) line
->data
) + SIZEOF_TREE_ATTR
;
2653 char *path2
= text
+ SIZEOF_TREE_ATTR
;
2654 int cmp
= tree_compare_entry(line
->type
, path1
, type
, path2
);
2659 text
= strdup(text
);
2663 if (view
->lines
> pos
)
2664 memmove(&view
->line
[pos
+ 1], &view
->line
[pos
],
2665 (view
->lines
- pos
) * sizeof(*line
));
2667 line
= &view
->line
[pos
];
2674 if (!add_line_text(view
, text
, type
))
2677 /* Move the current line to the first tree entry. */
2685 tree_enter(struct view
*view
, struct line
*line
)
2687 enum open_flags flags
;
2688 enum request request
;
2690 switch (line
->type
) {
2692 /* Depending on whether it is a subdir or parent (updir?) link
2693 * mangle the path buffer. */
2694 if (line
== &view
->line
[1] && *opt_path
) {
2695 size_t path_len
= strlen(opt_path
);
2696 char *dirsep
= opt_path
+ path_len
- 1;
2698 while (dirsep
> opt_path
&& dirsep
[-1] != '/')
2704 size_t pathlen
= strlen(opt_path
);
2705 size_t origlen
= pathlen
;
2706 char *data
= line
->data
;
2707 char *basename
= data
+ SIZEOF_TREE_ATTR
;
2709 if (!string_format_from(opt_path
, &pathlen
, "%s/", basename
)) {
2710 opt_path
[origlen
] = 0;
2715 /* Trees and subtrees share the same ID, so they are not not
2716 * unique like blobs. */
2717 flags
= OPEN_RELOAD
;
2718 request
= REQ_VIEW_TREE
;
2721 case LINE_TREE_FILE
:
2722 flags
= display
[0] == view ? OPEN_SPLIT
: OPEN_DEFAULT
;
2723 request
= REQ_VIEW_BLOB
;
2730 open_view(view
, request
, flags
);
2736 tree_select(struct view
*view
, struct line
*line
)
2738 char *text
= line
->data
+ STRING_SIZE("100644 blob ");
2740 if (line
->type
== LINE_TREE_FILE
) {
2741 string_copy_rev(ref_blob
, text
);
2743 } else if (line
->type
!= LINE_TREE_DIR
) {
2747 string_copy_rev(view
->ref
, text
);
2750 static struct view_ops tree_ops
= {
2761 blob_read(struct view
*view
, char *line
)
2763 return add_line_text(view
, line
, LINE_DEFAULT
);
2766 static struct view_ops blob_ops
= {
2785 char rev
[SIZEOF_REV
];
2789 char rev
[SIZEOF_REV
];
2791 char name
[SIZEOF_STR
];
2794 /* Get fields from the diff line:
2795 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
2798 status_get_diff(struct status
*file
, char *buf
, size_t bufsize
)
2800 char *old_mode
= buf
+ 1;
2801 char *new_mode
= buf
+ 8;
2802 char *old_rev
= buf
+ 15;
2803 char *new_rev
= buf
+ 56;
2804 char *status
= buf
+ 97;
2806 if (bufsize
!= 99 ||
2807 old_mode
[-1] != ':' ||
2808 new_mode
[-1] != ' ' ||
2809 old_rev
[-1] != ' ' ||
2810 new_rev
[-1] != ' ' ||
2814 file
->status
= *status
;
2816 string_copy_rev(file
->old
.rev
, old_rev
);
2817 string_copy_rev(file
->new.rev
, new_rev
);
2819 file
->old
.mode
= strtoul(old_mode
, NULL
, 8);
2820 file
->new.mode
= strtoul(new_mode
, NULL
, 8);
2828 status_run(struct view
*view
, const char cmd
[], bool diff
, enum line_type type
)
2830 struct status
*file
= NULL
;
2831 char buf
[SIZEOF_STR
* 4];
2835 pipe
= popen(cmd
, "r");
2839 add_line_data(view
, NULL
, type
);
2841 while (!feof(pipe
) && !ferror(pipe
)) {
2845 readsize
= fread(buf
+ bufsize
, 1, sizeof(buf
) - bufsize
, pipe
);
2848 bufsize
+= readsize
;
2850 /* Process while we have NUL chars. */
2851 while ((sep
= memchr(buf
, 0, bufsize
))) {
2852 size_t sepsize
= sep
- buf
+ 1;
2855 if (!realloc_lines(view
, view
->line_size
+ 1))
2858 file
= calloc(1, sizeof(*file
));
2862 add_line_data(view
, file
, type
);
2865 /* Parse diff info part. */
2869 } else if (!file
->status
) {
2870 if (!status_get_diff(file
, buf
, sepsize
))
2874 memmove(buf
, sep
+ 1, bufsize
);
2876 sep
= memchr(buf
, 0, bufsize
);
2879 sepsize
= sep
- buf
+ 1;
2882 /* git-ls-files just delivers a NUL separated
2883 * list of file names similar to the second half
2884 * of the git-diff-* output. */
2885 string_ncopy(file
->name
, buf
, sepsize
);
2887 memmove(buf
, sep
+ 1, bufsize
);
2898 if (!view
->line
[view
->lines
- 1].data
)
2899 add_line_data(view
, NULL
, LINE_STAT_NONE
);
2905 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --cached HEAD"
2906 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
2907 #define STATUS_LIST_OTHER_CMD \
2908 "git ls-files -z --others --exclude-per-directory=.gitignore"
2910 /* First parse staged info using git-diff-index(1), then parse unstaged
2911 * info using git-diff-files(1), and finally untracked files using
2912 * git-ls-files(1). */
2914 status_open(struct view
*view
)
2916 struct stat statbuf
;
2917 char exclude
[SIZEOF_STR
];
2918 char cmd
[SIZEOF_STR
];
2921 for (i
= 0; i
< view
->lines
; i
++)
2922 free(view
->line
[i
].data
);
2924 view
->lines
= view
->line_size
= 0;
2927 if (!realloc_lines(view
, view
->line_size
+ 6))
2930 if (!string_format(exclude
, "%s/info/exclude", opt_git_dir
))
2933 string_copy(cmd
, STATUS_LIST_OTHER_CMD
);
2935 if (stat(exclude
, &statbuf
) >= 0) {
2936 size_t cmdsize
= strlen(cmd
);
2938 if (!string_format_from(cmd
, &cmdsize
, " %s", "--exclude-from=") ||
2939 sq_quote(cmd
, cmdsize
, exclude
) >= sizeof(cmd
))
2943 if (!status_run(view
, STATUS_DIFF_INDEX_CMD
, TRUE
, LINE_STAT_STAGED
) ||
2944 !status_run(view
, STATUS_DIFF_FILES_CMD
, TRUE
, LINE_STAT_UNSTAGED
) ||
2945 !status_run(view
, cmd
, FALSE
, LINE_STAT_UNTRACKED
))
2952 status_draw(struct view
*view
, struct line
*line
, unsigned int lineno
, bool selected
)
2954 struct status
*status
= line
->data
;
2956 wmove(view
->win
, lineno
, 0);
2959 wattrset(view
->win
, get_line_attr(LINE_CURSOR
));
2960 wchgat(view
->win
, -1, 0, LINE_CURSOR
, NULL
);
2962 } else if (!status
&& line
->type
!= LINE_STAT_NONE
) {
2963 wattrset(view
->win
, get_line_attr(LINE_STAT_SECTION
));
2964 wchgat(view
->win
, -1, 0, LINE_STAT_SECTION
, NULL
);
2967 wattrset(view
->win
, get_line_attr(line
->type
));
2973 switch (line
->type
) {
2974 case LINE_STAT_STAGED
:
2975 text
= "Changes to be committed:";
2978 case LINE_STAT_UNSTAGED
:
2979 text
= "Changed but not updated:";
2982 case LINE_STAT_UNTRACKED
:
2983 text
= "Untracked files:";
2986 case LINE_STAT_NONE
:
2987 text
= " (no files)";
2994 waddstr(view
->win
, text
);
2998 waddch(view
->win
, status
->status
);
3000 wattrset(view
->win
, A_NORMAL
);
3001 wmove(view
->win
, lineno
, 4);
3002 waddstr(view
->win
, status
->name
);
3008 status_enter(struct view
*view
, struct line
*line
)
3010 struct status
*status
= line
->data
;
3011 char cmd
[SIZEOF_STR
];
3012 char buf
[SIZEOF_STR
];
3022 line
->type
!= LINE_STAT_UNTRACKED
&&
3023 !string_format_from(cmd
, &cmdsize
, "cd %s;", opt_cdup
))
3026 switch (line
->type
) {
3027 case LINE_STAT_STAGED
:
3028 if (!string_format_from(buf
, &bufsize
, "%06o %s\t%s%c",
3034 string_add(cmd
, cmdsize
, "git update-index -z --index-info");
3037 case LINE_STAT_UNSTAGED
:
3038 case LINE_STAT_UNTRACKED
:
3039 if (!string_format_from(buf
, &bufsize
, "%s%c", status
->name
, 0))
3042 string_add(cmd
, cmdsize
, "git update-index -z --add --remove --stdin");
3049 pipe
= popen(cmd
, "w");
3053 while (!ferror(pipe
) && written
< bufsize
) {
3054 written
+= fwrite(buf
+ written
, 1, bufsize
- written
, pipe
);
3059 if (written
!= bufsize
)
3062 open_view(view
, REQ_VIEW_STATUS
, OPEN_RELOAD
);
3067 status_select(struct view
*view
, struct line
*line
)
3071 switch (line
->type
) {
3072 case LINE_STAT_STAGED
:
3073 text
= "Press Enter to unstage file for commit";
3076 case LINE_STAT_UNSTAGED
:
3077 text
= "Press Enter to stage file for commit ";
3080 case LINE_STAT_UNTRACKED
:
3081 text
= "Press Enter to stage file for addition";
3084 case LINE_STAT_NONE
:
3091 string_ncopy(view
->ref
, text
, strlen(text
));
3095 status_grep(struct view
*view
, struct line
*line
)
3097 struct status
*status
= line
->data
;
3098 enum { S_STATUS
, S_NAME
, S_END
} state
;
3105 for (state
= S_STATUS
; state
< S_END
; state
++) {
3109 case S_NAME
: text
= status
->name
; break;
3111 buf
[0] = status
->status
;
3119 if (regexec(view
->regex
, text
, 1, &pmatch
, 0) != REG_NOMATCH
)
3126 static struct view_ops status_ops
= {
3142 char id
[SIZEOF_REV
]; /* SHA1 ID. */
3143 char title
[128]; /* First line of the commit message. */
3144 char author
[75]; /* Author of the commit. */
3145 struct tm time
; /* Date from the author ident. */
3146 struct ref
**refs
; /* Repository references. */
3147 chtype graph
[SIZEOF_REVGRAPH
]; /* Ancestry chain graphics. */
3148 size_t graph_size
; /* The width of the graph array. */
3151 /* Size of rev graph with no "padding" columns */
3152 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
3155 struct rev_graph
*prev
, *next
, *parents
;
3156 char rev
[SIZEOF_REVITEMS
][SIZEOF_REV
];
3158 struct commit
*commit
;
3162 /* Parents of the commit being visualized. */
3163 static struct rev_graph graph_parents
[4];
3165 /* The current stack of revisions on the graph. */
3166 static struct rev_graph graph_stacks
[4] = {
3167 { &graph_stacks
[3], &graph_stacks
[1], &graph_parents
[0] },
3168 { &graph_stacks
[0], &graph_stacks
[2], &graph_parents
[1] },
3169 { &graph_stacks
[1], &graph_stacks
[3], &graph_parents
[2] },
3170 { &graph_stacks
[2], &graph_stacks
[0], &graph_parents
[3] },
3174 graph_parent_is_merge(struct rev_graph
*graph
)
3176 return graph
->parents
->size
> 1;
3180 append_to_rev_graph(struct rev_graph
*graph
, chtype symbol
)
3182 struct commit
*commit
= graph
->commit
;
3184 if (commit
->graph_size
< ARRAY_SIZE(commit
->graph
) - 1)
3185 commit
->graph
[commit
->graph_size
++] = symbol
;
3189 done_rev_graph(struct rev_graph
*graph
)
3191 if (graph_parent_is_merge(graph
) &&
3192 graph
->pos
< graph
->size
- 1 &&
3193 graph
->next
->size
== graph
->size
+ graph
->parents
->size
- 1) {
3194 size_t i
= graph
->pos
+ graph
->parents
->size
- 1;
3196 graph
->commit
->graph_size
= i
* 2;
3197 while (i
< graph
->next
->size
- 1) {
3198 append_to_rev_graph(graph
, ' ');
3199 append_to_rev_graph(graph
, '\\');
3204 graph
->size
= graph
->pos
= 0;
3205 graph
->commit
= NULL
;
3206 memset(graph
->parents
, 0, sizeof(*graph
->parents
));
3210 push_rev_graph(struct rev_graph
*graph
, char *parent
)
3214 /* "Collapse" duplicate parents lines.
3216 * FIXME: This needs to also update update the drawn graph but
3217 * for now it just serves as a method for pruning graph lines. */
3218 for (i
= 0; i
< graph
->size
; i
++)
3219 if (!strncmp(graph
->rev
[i
], parent
, SIZEOF_REV
))
3222 if (graph
->size
< SIZEOF_REVITEMS
) {
3223 string_copy_rev(graph
->rev
[graph
->size
++], parent
);
3228 get_rev_graph_symbol(struct rev_graph
*graph
)
3232 if (graph
->parents
->size
== 0)
3233 symbol
= REVGRAPH_INIT
;
3234 else if (graph_parent_is_merge(graph
))
3235 symbol
= REVGRAPH_MERGE
;
3236 else if (graph
->pos
>= graph
->size
)
3237 symbol
= REVGRAPH_BRANCH
;
3239 symbol
= REVGRAPH_COMMIT
;
3245 draw_rev_graph(struct rev_graph
*graph
)
3248 chtype separator
, line
;
3250 enum { DEFAULT
, RSHARP
, RDIAG
, LDIAG
};
3251 static struct rev_filler fillers
[] = {
3252 { ' ', REVGRAPH_LINE
},
3257 chtype symbol
= get_rev_graph_symbol(graph
);
3258 struct rev_filler
*filler
;
3261 filler
= &fillers
[DEFAULT
];
3263 for (i
= 0; i
< graph
->pos
; i
++) {
3264 append_to_rev_graph(graph
, filler
->line
);
3265 if (graph_parent_is_merge(graph
->prev
) &&
3266 graph
->prev
->pos
== i
)
3267 filler
= &fillers
[RSHARP
];
3269 append_to_rev_graph(graph
, filler
->separator
);
3272 /* Place the symbol for this revision. */
3273 append_to_rev_graph(graph
, symbol
);
3275 if (graph
->prev
->size
> graph
->size
)
3276 filler
= &fillers
[RDIAG
];
3278 filler
= &fillers
[DEFAULT
];
3282 for (; i
< graph
->size
; i
++) {
3283 append_to_rev_graph(graph
, filler
->separator
);
3284 append_to_rev_graph(graph
, filler
->line
);
3285 if (graph_parent_is_merge(graph
->prev
) &&
3286 i
< graph
->prev
->pos
+ graph
->parents
->size
)
3287 filler
= &fillers
[RSHARP
];
3288 if (graph
->prev
->size
> graph
->size
)
3289 filler
= &fillers
[LDIAG
];
3292 if (graph
->prev
->size
> graph
->size
) {
3293 append_to_rev_graph(graph
, filler
->separator
);
3294 if (filler
->line
!= ' ')
3295 append_to_rev_graph(graph
, filler
->line
);
3299 /* Prepare the next rev graph */
3301 prepare_rev_graph(struct rev_graph
*graph
)
3305 /* First, traverse all lines of revisions up to the active one. */
3306 for (graph
->pos
= 0; graph
->pos
< graph
->size
; graph
->pos
++) {
3307 if (!strcmp(graph
->rev
[graph
->pos
], graph
->commit
->id
))
3310 push_rev_graph(graph
->next
, graph
->rev
[graph
->pos
]);
3313 /* Interleave the new revision parent(s). */
3314 for (i
= 0; i
< graph
->parents
->size
; i
++)
3315 push_rev_graph(graph
->next
, graph
->parents
->rev
[i
]);
3317 /* Lastly, put any remaining revisions. */
3318 for (i
= graph
->pos
+ 1; i
< graph
->size
; i
++)
3319 push_rev_graph(graph
->next
, graph
->rev
[i
]);
3323 update_rev_graph(struct rev_graph
*graph
)
3325 /* If this is the finalizing update ... */
3327 prepare_rev_graph(graph
);
3329 /* Graph visualization needs a one rev look-ahead,
3330 * so the first update doesn't visualize anything. */
3331 if (!graph
->prev
->commit
)
3334 draw_rev_graph(graph
->prev
);
3335 done_rev_graph(graph
->prev
->prev
);
3344 main_draw(struct view
*view
, struct line
*line
, unsigned int lineno
, bool selected
)
3346 char buf
[DATE_COLS
+ 1];
3347 struct commit
*commit
= line
->data
;
3348 enum line_type type
;
3354 if (!*commit
->author
)
3357 wmove(view
->win
, lineno
, col
);
3361 wattrset(view
->win
, get_line_attr(type
));
3362 wchgat(view
->win
, -1, 0, type
, NULL
);
3365 type
= LINE_MAIN_COMMIT
;
3366 wattrset(view
->win
, get_line_attr(LINE_MAIN_DATE
));
3369 timelen
= strftime(buf
, sizeof(buf
), DATE_FORMAT
, &commit
->time
);
3370 waddnstr(view
->win
, buf
, timelen
);
3371 waddstr(view
->win
, " ");
3374 wmove(view
->win
, lineno
, col
);
3375 if (type
!= LINE_CURSOR
)
3376 wattrset(view
->win
, get_line_attr(LINE_MAIN_AUTHOR
));
3379 authorlen
= utf8_length(commit
->author
, AUTHOR_COLS
- 2, &col
, &trimmed
);
3381 authorlen
= strlen(commit
->author
);
3382 if (authorlen
> AUTHOR_COLS
- 2) {
3383 authorlen
= AUTHOR_COLS
- 2;
3389 waddnstr(view
->win
, commit
->author
, authorlen
);
3390 if (type
!= LINE_CURSOR
)
3391 wattrset(view
->win
, get_line_attr(LINE_MAIN_DELIM
));
3392 waddch(view
->win
, '~');
3394 waddstr(view
->win
, commit
->author
);
3398 if (type
!= LINE_CURSOR
)
3399 wattrset(view
->win
, A_NORMAL
);
3401 if (opt_rev_graph
&& commit
->graph_size
) {
3404 wmove(view
->win
, lineno
, col
);
3405 /* Using waddch() instead of waddnstr() ensures that
3406 * they'll be rendered correctly for the cursor line. */
3407 for (i
= 0; i
< commit
->graph_size
; i
++)
3408 waddch(view
->win
, commit
->graph
[i
]);
3410 waddch(view
->win
, ' ');
3411 col
+= commit
->graph_size
+ 1;
3414 wmove(view
->win
, lineno
, col
);
3420 if (type
== LINE_CURSOR
)
3422 else if (commit
->refs
[i
]->tag
)
3423 wattrset(view
->win
, get_line_attr(LINE_MAIN_TAG
));
3424 else if (commit
->refs
[i
]->remote
)
3425 wattrset(view
->win
, get_line_attr(LINE_MAIN_REMOTE
));
3427 wattrset(view
->win
, get_line_attr(LINE_MAIN_REF
));
3428 waddstr(view
->win
, "[");
3429 waddstr(view
->win
, commit
->refs
[i
]->name
);
3430 waddstr(view
->win
, "]");
3431 if (type
!= LINE_CURSOR
)
3432 wattrset(view
->win
, A_NORMAL
);
3433 waddstr(view
->win
, " ");
3434 col
+= strlen(commit
->refs
[i
]->name
) + STRING_SIZE("[] ");
3435 } while (commit
->refs
[i
++]->next
);
3438 if (type
!= LINE_CURSOR
)
3439 wattrset(view
->win
, get_line_attr(type
));
3442 int titlelen
= strlen(commit
->title
);
3444 if (col
+ titlelen
> view
->width
)
3445 titlelen
= view
->width
- col
;
3447 waddnstr(view
->win
, commit
->title
, titlelen
);
3453 /* Reads git log --pretty=raw output and parses it into the commit struct. */
3455 main_read(struct view
*view
, char *line
)
3457 static struct rev_graph
*graph
= graph_stacks
;
3458 enum line_type type
;
3459 struct commit
*commit
;
3462 update_rev_graph(graph
);
3466 type
= get_line_type(line
);
3467 if (type
== LINE_COMMIT
) {
3468 commit
= calloc(1, sizeof(struct commit
));
3472 string_copy_rev(commit
->id
, line
+ STRING_SIZE("commit "));
3473 commit
->refs
= get_refs(commit
->id
);
3474 graph
->commit
= commit
;
3475 add_line_data(view
, commit
, LINE_MAIN_COMMIT
);
3481 commit
= view
->line
[view
->lines
- 1].data
;
3485 push_rev_graph(graph
->parents
, line
+ STRING_SIZE("parent "));
3490 /* Parse author lines where the name may be empty:
3491 * author <email@address.tld> 1138474660 +0100
3493 char *ident
= line
+ STRING_SIZE("author ");
3494 char *nameend
= strchr(ident
, '<');
3495 char *emailend
= strchr(ident
, '>');
3497 if (!nameend
|| !emailend
)
3500 update_rev_graph(graph
);
3501 graph
= graph
->next
;
3503 *nameend
= *emailend
= 0;
3504 ident
= chomp_string(ident
);
3506 ident
= chomp_string(nameend
+ 1);
3511 string_ncopy(commit
->author
, ident
, strlen(ident
));
3513 /* Parse epoch and timezone */
3514 if (emailend
[1] == ' ') {
3515 char *secs
= emailend
+ 2;
3516 char *zone
= strchr(secs
, ' ');
3517 time_t time
= (time_t) atol(secs
);
3519 if (zone
&& strlen(zone
) == STRING_SIZE(" +0700")) {
3523 tz
= ('0' - zone
[1]) * 60 * 60 * 10;
3524 tz
+= ('0' - zone
[2]) * 60 * 60;
3525 tz
+= ('0' - zone
[3]) * 60;
3526 tz
+= ('0' - zone
[4]) * 60;
3534 gmtime_r(&time
, &commit
->time
);
3539 /* Fill in the commit title if it has not already been set. */
3540 if (commit
->title
[0])
3543 /* Require titles to start with a non-space character at the
3544 * offset used by git log. */
3545 if (strncmp(line
, " ", 4))
3548 /* Well, if the title starts with a whitespace character,
3549 * try to be forgiving. Otherwise we end up with no title. */
3550 while (isspace(*line
))
3554 /* FIXME: More graceful handling of titles; append "..." to
3555 * shortened titles, etc. */
3557 string_ncopy(commit
->title
, line
, strlen(line
));
3564 main_enter(struct view
*view
, struct line
*line
)
3566 enum open_flags flags
= display
[0] == view ? OPEN_SPLIT
: OPEN_DEFAULT
;
3568 open_view(view
, REQ_VIEW_DIFF
, flags
);
3573 main_grep(struct view
*view
, struct line
*line
)
3575 struct commit
*commit
= line
->data
;
3576 enum { S_TITLE
, S_AUTHOR
, S_DATE
, S_END
} state
;
3577 char buf
[DATE_COLS
+ 1];
3580 for (state
= S_TITLE
; state
< S_END
; state
++) {
3584 case S_TITLE
: text
= commit
->title
; break;
3585 case S_AUTHOR
: text
= commit
->author
; break;
3587 if (!strftime(buf
, sizeof(buf
), DATE_FORMAT
, &commit
->time
))
3596 if (regexec(view
->regex
, text
, 1, &pmatch
, 0) != REG_NOMATCH
)
3604 main_select(struct view
*view
, struct line
*line
)
3606 struct commit
*commit
= line
->data
;
3608 string_copy_rev(view
->ref
, commit
->id
);
3609 string_copy_rev(ref_commit
, view
->ref
);
3612 static struct view_ops main_ops
= {
3624 * Unicode / UTF-8 handling
3626 * NOTE: Much of the following code for dealing with unicode is derived from
3627 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
3628 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
3631 /* I've (over)annotated a lot of code snippets because I am not entirely
3632 * confident that the approach taken by this small UTF-8 interface is correct.
3636 unicode_width(unsigned long c
)
3639 (c
<= 0x115f /* Hangul Jamo */
3642 || (c
>= 0x2e80 && c
<= 0xa4cf && c
!= 0x303f)
3644 || (c
>= 0xac00 && c
<= 0xd7a3) /* Hangul Syllables */
3645 || (c
>= 0xf900 && c
<= 0xfaff) /* CJK Compatibility Ideographs */
3646 || (c
>= 0xfe30 && c
<= 0xfe6f) /* CJK Compatibility Forms */
3647 || (c
>= 0xff00 && c
<= 0xff60) /* Fullwidth Forms */
3648 || (c
>= 0xffe0 && c
<= 0xffe6)
3649 || (c
>= 0x20000 && c
<= 0x2fffd)
3650 || (c
>= 0x30000 && c
<= 0x3fffd)))
3656 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
3657 * Illegal bytes are set one. */
3658 static const unsigned char utf8_bytes
[256] = {
3659 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,
3660 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,
3661 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,
3662 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,
3663 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,
3664 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,
3665 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,
3666 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,
3669 /* Decode UTF-8 multi-byte representation into a unicode character. */
3670 static inline unsigned long
3671 utf8_to_unicode(const char *string
, size_t length
)
3673 unsigned long unicode
;
3677 unicode
= string
[0];
3680 unicode
= (string
[0] & 0x1f) << 6;
3681 unicode
+= (string
[1] & 0x3f);
3684 unicode
= (string
[0] & 0x0f) << 12;
3685 unicode
+= ((string
[1] & 0x3f) << 6);
3686 unicode
+= (string
[2] & 0x3f);
3689 unicode
= (string
[0] & 0x0f) << 18;
3690 unicode
+= ((string
[1] & 0x3f) << 12);
3691 unicode
+= ((string
[2] & 0x3f) << 6);
3692 unicode
+= (string
[3] & 0x3f);
3695 unicode
= (string
[0] & 0x0f) << 24;
3696 unicode
+= ((string
[1] & 0x3f) << 18);
3697 unicode
+= ((string
[2] & 0x3f) << 12);
3698 unicode
+= ((string
[3] & 0x3f) << 6);
3699 unicode
+= (string
[4] & 0x3f);
3702 unicode
= (string
[0] & 0x01) << 30;
3703 unicode
+= ((string
[1] & 0x3f) << 24);
3704 unicode
+= ((string
[2] & 0x3f) << 18);
3705 unicode
+= ((string
[3] & 0x3f) << 12);
3706 unicode
+= ((string
[4] & 0x3f) << 6);
3707 unicode
+= (string
[5] & 0x3f);
3710 die("Invalid unicode length");
3713 /* Invalid characters could return the special 0xfffd value but NUL
3714 * should be just as good. */
3715 return unicode
> 0xffff ?
0 : unicode
;
3718 /* Calculates how much of string can be shown within the given maximum width
3719 * and sets trimmed parameter to non-zero value if all of string could not be
3722 * Additionally, adds to coloffset how many many columns to move to align with
3723 * the expected position. Takes into account how multi-byte and double-width
3724 * characters will effect the cursor position.
3726 * Returns the number of bytes to output from string to satisfy max_width. */
3728 utf8_length(const char *string
, size_t max_width
, int *coloffset
, int *trimmed
)
3730 const char *start
= string
;
3731 const char *end
= strchr(string
, '\0');
3737 while (string
< end
) {
3738 int c
= *(unsigned char *) string
;
3739 unsigned char bytes
= utf8_bytes
[c
];
3741 unsigned long unicode
;
3743 if (string
+ bytes
> end
)
3746 /* Change representation to figure out whether
3747 * it is a single- or double-width character. */
3749 unicode
= utf8_to_unicode(string
, bytes
);
3750 /* FIXME: Graceful handling of invalid unicode character. */
3754 ucwidth
= unicode_width(unicode
);
3756 if (width
> max_width
) {
3761 /* The column offset collects the differences between the
3762 * number of bytes encoding a character and the number of
3763 * columns will be used for rendering said character.
3765 * So if some character A is encoded in 2 bytes, but will be
3766 * represented on the screen using only 1 byte this will and up
3767 * adding 1 to the multi-byte column offset.
3769 * Assumes that no double-width character can be encoding in
3770 * less than two bytes. */
3771 if (bytes
> ucwidth
)
3772 mbwidth
+= bytes
- ucwidth
;
3777 *coloffset
+= mbwidth
;
3779 return string
- start
;
3787 /* Whether or not the curses interface has been initialized. */
3788 static bool cursed
= FALSE
;
3790 /* The status window is used for polling keystrokes. */
3791 static WINDOW
*status_win
;
3793 static bool status_empty
= TRUE
;
3795 /* Update status and title window. */
3797 report(const char *msg
, ...)
3799 struct view
*view
= display
[current_view
];
3804 if (!status_empty
|| *msg
) {
3807 va_start(args
, msg
);
3809 wmove(status_win
, 0, 0);
3811 vwprintw(status_win
, msg
, args
);
3812 status_empty
= FALSE
;
3814 status_empty
= TRUE
;
3816 wclrtoeol(status_win
);
3817 wrefresh(status_win
);
3822 update_view_title(view
);
3823 update_display_cursor(view
);
3826 /* Controls when nodelay should be in effect when polling user input. */
3828 set_nonblocking_input(bool loading
)
3830 static unsigned int loading_views
;
3832 if ((loading
== FALSE
&& loading_views
-- == 1) ||
3833 (loading
== TRUE
&& loading_views
++ == 0))
3834 nodelay(status_win
, loading
);
3842 /* Initialize the curses library */
3843 if (isatty(STDIN_FILENO
)) {
3844 cursed
= !!initscr();
3846 /* Leave stdin and stdout alone when acting as a pager. */
3847 FILE *io
= fopen("/dev/tty", "r+");
3850 die("Failed to open /dev/tty");
3851 cursed
= !!newterm(NULL
, io
, io
);
3855 die("Failed to initialize curses");
3857 nonl(); /* Tell curses not to do NL->CR/NL on output */
3858 cbreak(); /* Take input chars one at a time, no wait for \n */
3859 noecho(); /* Don't echo input */
3860 leaveok(stdscr
, TRUE
);
3865 getmaxyx(stdscr
, y
, x
);
3866 status_win
= newwin(1, 0, y
- 1, 0);
3868 die("Failed to create status window");
3870 /* Enable keyboard mapping */
3871 keypad(status_win
, TRUE
);
3872 wbkgdset(status_win
, get_line_attr(LINE_STATUS
));
3876 read_prompt(const char *prompt
)
3878 enum { READING
, STOP
, CANCEL
} status
= READING
;
3879 static char buf
[sizeof(opt_cmd
) - STRING_SIZE("git \0")];
3882 while (status
== READING
) {
3888 foreach_view (view
, i
)
3893 mvwprintw(status_win
, 0, 0, "%s%.*s", prompt
, pos
, buf
);
3894 wclrtoeol(status_win
);
3896 /* Refresh, accept single keystroke of input */
3897 key
= wgetch(status_win
);
3902 status
= pos ? STOP
: CANCEL
;
3920 if (pos
>= sizeof(buf
)) {
3921 report("Input string too long");
3926 buf
[pos
++] = (char) key
;
3930 /* Clear the status window */
3931 status_empty
= FALSE
;
3934 if (status
== CANCEL
)
3943 * Repository references
3946 static struct ref
*refs
;
3947 static size_t refs_size
;
3949 /* Id <-> ref store */
3950 static struct ref
***id_refs
;
3951 static size_t id_refs_size
;
3953 static struct ref
**
3956 struct ref
***tmp_id_refs
;
3957 struct ref
**ref_list
= NULL
;
3958 size_t ref_list_size
= 0;
3961 for (i
= 0; i
< id_refs_size
; i
++)
3962 if (!strcmp(id
, id_refs
[i
][0]->id
))
3965 tmp_id_refs
= realloc(id_refs
, (id_refs_size
+ 1) * sizeof(*id_refs
));
3969 id_refs
= tmp_id_refs
;
3971 for (i
= 0; i
< refs_size
; i
++) {
3974 if (strcmp(id
, refs
[i
].id
))
3977 tmp
= realloc(ref_list
, (ref_list_size
+ 1) * sizeof(*ref_list
));
3985 if (ref_list_size
> 0)
3986 ref_list
[ref_list_size
- 1]->next
= 1;
3987 ref_list
[ref_list_size
] = &refs
[i
];
3989 /* XXX: The properties of the commit chains ensures that we can
3990 * safely modify the shared ref. The repo references will
3991 * always be similar for the same id. */
3992 ref_list
[ref_list_size
]->next
= 0;
3997 id_refs
[id_refs_size
++] = ref_list
;
4003 read_ref(char *id
, size_t idlen
, char *name
, size_t namelen
)
4007 bool remote
= FALSE
;
4009 if (!strncmp(name
, "refs/tags/", STRING_SIZE("refs/tags/"))) {
4010 /* Commits referenced by tags has "^{}" appended. */
4011 if (name
[namelen
- 1] != '}')
4014 while (namelen
> 0 && name
[namelen
] != '^')
4018 namelen
-= STRING_SIZE("refs/tags/");
4019 name
+= STRING_SIZE("refs/tags/");
4021 } else if (!strncmp(name
, "refs/remotes/", STRING_SIZE("refs/remotes/"))) {
4023 namelen
-= STRING_SIZE("refs/remotes/");
4024 name
+= STRING_SIZE("refs/remotes/");
4026 } else if (!strncmp(name
, "refs/heads/", STRING_SIZE("refs/heads/"))) {
4027 namelen
-= STRING_SIZE("refs/heads/");
4028 name
+= STRING_SIZE("refs/heads/");
4030 } else if (!strcmp(name
, "HEAD")) {
4034 refs
= realloc(refs
, sizeof(*refs
) * (refs_size
+ 1));
4038 ref
= &refs
[refs_size
++];
4039 ref
->name
= malloc(namelen
+ 1);
4043 strncpy(ref
->name
, name
, namelen
);
4044 ref
->name
[namelen
] = 0;
4046 ref
->remote
= remote
;
4047 string_copy_rev(ref
->id
, id
);
4055 const char *cmd_env
= getenv("TIG_LS_REMOTE");
4056 const char *cmd
= cmd_env
&& *cmd_env ? cmd_env
: TIG_LS_REMOTE
;
4058 return read_properties(popen(cmd
, "r"), "\t", read_ref
);
4062 read_repo_config_option(char *name
, size_t namelen
, char *value
, size_t valuelen
)
4064 if (!strcmp(name
, "i18n.commitencoding"))
4065 string_ncopy(opt_encoding
, value
, valuelen
);
4071 load_repo_config(void)
4073 return read_properties(popen("git repo-config --list", "r"),
4074 "=", read_repo_config_option
);
4078 read_repo_info(char *name
, size_t namelen
, char *value
, size_t valuelen
)
4080 if (!opt_git_dir
[0])
4081 string_ncopy(opt_git_dir
, name
, namelen
);
4083 string_ncopy(opt_cdup
, name
, namelen
);
4087 /* XXX: The line outputted by "--show-cdup" can be empty so the option
4088 * must be the last one! */
4090 load_repo_info(void)
4092 return read_properties(popen("git rev-parse --git-dir --show-cdup", "r"),
4093 "=", read_repo_info
);
4097 read_properties(FILE *pipe
, const char *separators
,
4098 int (*read_property
)(char *, size_t, char *, size_t))
4100 char buffer
[BUFSIZ
];
4107 while (state
== OK
&& (name
= fgets(buffer
, sizeof(buffer
), pipe
))) {
4112 name
= chomp_string(name
);
4113 namelen
= strcspn(name
, separators
);
4115 if (name
[namelen
]) {
4117 value
= chomp_string(name
+ namelen
+ 1);
4118 valuelen
= strlen(value
);
4125 state
= read_property(name
, namelen
, value
, valuelen
);
4128 if (state
!= ERR
&& ferror(pipe
))
4141 static void __NORETURN
4144 /* XXX: Restore tty modes and let the OS cleanup the rest! */
4150 static void __NORETURN
4151 die(const char *err
, ...)
4157 va_start(args
, err
);
4158 fputs("tig: ", stderr
);
4159 vfprintf(stderr
, err
, args
);
4160 fputs("\n", stderr
);
4167 main(int argc
, char *argv
[])
4170 enum request request
;
4173 signal(SIGINT
, quit
);
4175 if (setlocale(LC_ALL
, "")) {
4176 char *codeset
= nl_langinfo(CODESET
);
4178 string_ncopy(opt_codeset
, codeset
, strlen(codeset
));
4181 if (load_options() == ERR
)
4182 die("Failed to load user config.");
4184 /* Load the repo config file so options can be overwritten from
4185 * the command line. */
4186 if (load_repo_config() == ERR
)
4187 die("Failed to load repo config.");
4189 if (load_repo_info() == ERR
)
4190 die("Failed to load repo info.");
4192 if (!parse_options(argc
, argv
))
4195 if (*opt_codeset
&& strcmp(opt_codeset
, opt_encoding
)) {
4196 opt_iconv
= iconv_open(opt_codeset
, opt_encoding
);
4197 if (opt_iconv
== ICONV_NONE
)
4198 die("Failed to initialize character set conversion");
4201 if (load_refs() == ERR
)
4202 die("Failed to load refs.");
4204 /* Require a git repository unless when running in pager mode. */
4205 if (refs_size
== 0 && opt_request
!= REQ_VIEW_PAGER
)
4206 die("Not a git repository");
4208 for (i
= 0; i
< ARRAY_SIZE(views
) && (view
= &views
[i
]); i
++)
4209 view
->cmd_env
= getenv(view
->cmd_env
);
4211 request
= opt_request
;
4215 while (view_driver(display
[current_view
], request
)) {
4219 foreach_view (view
, i
)
4222 /* Refresh, accept single keystroke of input */
4223 key
= wgetch(status_win
);
4225 /* wgetch() with nodelay() enabled returns ERR when there's no
4232 request
= get_keybinding(display
[current_view
]->keymap
, key
);
4234 /* Some low-level request handling. This keeps access to
4235 * status_win restricted. */
4239 char *cmd
= read_prompt(":");
4241 if (cmd
&& string_format(opt_cmd
, "git %s", cmd
)) {
4242 if (strncmp(cmd
, "show", 4) && isspace(cmd
[4])) {
4243 opt_request
= REQ_VIEW_DIFF
;
4245 opt_request
= REQ_VIEW_PAGER
;
4254 case REQ_SEARCH_BACK
:
4256 const char *prompt
= request
== REQ_SEARCH
4258 char *search
= read_prompt(prompt
);
4261 string_ncopy(opt_search
, search
, strlen(search
));
4266 case REQ_SCREEN_RESIZE
:
4270 getmaxyx(stdscr
, height
, width
);
4272 /* Resize the status view and let the view driver take
4273 * care of resizing the displayed views. */
4274 wresize(status_win
, 1, width
);
4275 mvwin(status_win
, height
- 1, 0);
4276 wrefresh(status_win
);