1 ! Copyright (C) 2008 Slava Pestov, Doug Coleman.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors io.backend io.files.info io.files.types
4 io.pathnames kernel math namespaces system vocabs.loader ;
7 HOOK: make-link os ( target symlink -- )
9 HOOK: make-hard-link os ( target link -- )
11 HOOK: read-link os ( symlink -- path )
13 : copy-link ( target symlink -- )
14 [ read-link ] dip make-link ;
16 os unix? [ "io.files.links.unix" require ] when
18 : follow-link ( path -- path' )
19 [ parent-directory ] [ read-link ] bi append-path ;
22 10 symlink-depth set-global
24 ERROR: too-many-symlinks path n ;
28 : (follow-links) ( n path -- path' )
29 over 0 = [ symlink-depth get too-many-symlinks ] when
30 dup link-info type>> +symbolic-link+ =
31 [ [ 1 - ] [ follow-link ] bi* (follow-links) ]
32 [ nip ] if ; inline recursive
36 : follow-links ( path -- path' )
37 [ symlink-depth get ] dip normalize-path (follow-links) ;