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.\" ========================================================================
.\"
.IX Title "File::Spec::Link 3pm"
.TH File::Spec::Link 3pm "2021-01-03" "perl v5.32.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.nh
.SH "NAME"
File::Spec::Link \- Perl extension for reading and resolving symbolic links
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 5
\&    use File::Spec::Link;
\&    my $file = File::Spec::Link\->linked($link); 
\&    my $file = File::Spec::Link\->resolve($link); 
\&    my $dirname = File::Spec::Link\->chopfile($file);
\&    my $newname = File::Spec::Link\->relative_to_file($path, $link);
\&  
\&    my $realname = File::Spec::Link\->full_resolve($file);
\&    my $realname = File::Spec::Link\->resolve_path($file);
\&    my $realname = File::Spec::Link\->resolve_all($file);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\f(CW\*(C`File::Spec::Link\*(C'\fR is an extension to \f(CW\*(C`File::Spec\*(C'\fR, adding methods for
resolving symbolic links; it was created to implement \f(CW\*(C`File::Copy::Link\*(C'\fR.
.ie n .IP """linked($link)""" 4
.el .IP "\f(CWlinked($link)\fR" 4
.IX Item "linked($link)"
Returns the filename linked to by \f(CW$link\fR: by \f(CW\*(C`readlink\*(C'\fRing \f(CW$link\fR,
and resolving that path relative to the directory of \f(CW$link\fR.
.ie n .IP """resolve($link)""" 4
.el .IP "\f(CWresolve($link)\fR" 4
.IX Item "resolve($link)"
Returns the non-link ultimately linked to by \f(CW$link\fR, by repeatedly
calling \f(CW\*(C`linked\*(C'\fR.  Returns \f(CW\*(C`undef\*(C'\fR if the link can not be resolved.
.ie n .IP """chopfile($file)""" 4
.el .IP "\f(CWchopfile($file)\fR" 4
.IX Item "chopfile($file)"
Returns the directory of \f(CW$file\fR, by splitting the path of \f(CW$file\fR
and returning (the volumne and) directory parts.
.ie n .IP """relative_to_file($path, $file)""" 4
.el .IP "\f(CWrelative_to_file($path, $file)\fR" 4
.IX Item "relative_to_file($path, $file)"
Returns the path of \f(CW$path\fR relative to the directory of file
\&\f(CW$file\fR.  If \f(CW$path\fR is absolute, just returns \f(CW$path\fR.
.ie n .IP """resolve_all($file)""" 4
.el .IP "\f(CWresolve_all($file)\fR" 4
.IX Item "resolve_all($file)"
Returns the filename of \f(CW$file\fR with all links in the path resolved,
wihout using \f(CW\*(C`Cwd\*(C'\fR.
.ie n .IP """full_resolve($file)""" 4
.el .IP "\f(CWfull_resolve($file)\fR" 4
.IX Item "full_resolve($file)"
Returns the filename of \f(CW$file\fR with all links in the path resolved.
.Sp
This sub tries to use \f(CW\*(C`Cwd::abs_path\*(C'\fR via \f(CW\*(C`\->resolve_path\*(C'\fR.
.ie n .IP """resolve_path($file)""" 4
.el .IP "\f(CWresolve_path($file)\fR" 4
.IX Item "resolve_path($file)"
Returns the filename of \f(CW$file\fR with all links in the path resolved.
.Sp
This sub uses \f(CW\*(C`Cwd::abs_path\*(C'\fR and is independent of the rest of
\&\f(CW\*(C`File::Spec::Link\*(C'\fR.
.SS "Object methods"
.IX Subsection "Object methods"
.ie n .IP """new([$path])""" 4
.el .IP "\f(CWnew([$path])\fR" 4
.IX Item "new([$path])"
create new path object: stores path as a list
.ie n .IP """path""" 4
.el .IP "\f(CWpath\fR" 4
.IX Item "path"
returns path as a string, using catpath
.ie n .IP """canonical""" 4
.el .IP "\f(CWcanonical\fR" 4
.IX Item "canonical"
returns canonical path, using canonpath
.ie n .IP """vol""" 4
.el .IP "\f(CWvol\fR" 4
.IX Item "vol"
returns volume element of path, see File::Spec\->splitpath
.ie n .IP """dir""" 4
.el .IP "\f(CWdir\fR" 4
.IX Item "dir"
returns directory element of path, as a string, see File::Spec\->splitpath
.ie n .IP """dirs""" 4
.el .IP "\f(CWdirs\fR" 4
.IX Item "dirs"
return list of directory components in path, see File::Spec\->splitdir
.ie n .IP """pop""" 4
.el .IP "\f(CWpop\fR" 4
.IX Item "pop"
remove last component of the path
.ie n .IP """push($file)""" 4
.el .IP "\f(CWpush($file)\fR" 4
.IX Item "push($file)"
add a file component to the path, ignoring empty strings
.ie n .IP """add($file)""" 4
.el .IP "\f(CWadd($file)\fR" 4
.IX Item "add($file)"
add a component to the path:
treating \f(CW\*(C`updir\*(C'\fR as \f(CW\*(C`pop\*(C'\fR,
and ignoring \f(CW\*(C`curdir\*(C'\fR and empty strings
.ie n .IP """split($path)""" 4
.el .IP "\f(CWsplit($path)\fR" 4
.IX Item "split($path)"
populate a path object, using splitpath
.ie n .IP """chop""" 4
.el .IP "\f(CWchop\fR" 4
.IX Item "chop"
remove and return a file component from path, 
an empty string returns means this was root dir.
.ie n .IP """relative($path)""" 4
.el .IP "\f(CWrelative($path)\fR" 4
.IX Item "relative($path)"
replace the path object with the supplied path,
where the new path is relative to the path object
.ie n .IP """follow""" 4
.el .IP "\f(CWfollow\fR" 4
.IX Item "follow"
follow the link, where the path object is a link
.ie n .IP """resolved""" 4
.el .IP "\f(CWresolved\fR" 4
.IX Item "resolved"
resolve the path object, by repeatedly following links
.ie n .IP """resolvedir""" 4
.el .IP "\f(CWresolvedir\fR" 4
.IX Item "resolvedir"
resolve the links at all component levels  within the path object
.SS "Other class methods"
.IX Subsection "Other class methods"
.ie n .IP """canonpath($path)""" 4
.el .IP "\f(CWcanonpath($path)\fR" 4
.IX Item "canonpath($path)"
Wrapper round File::Spec::canonpath, fatal if empty input
.ie n .IP """catdir(@dirs)""" 4
.el .IP "\f(CWcatdir(@dirs)\fR" 4
.IX Item "catdir(@dirs)"
Wrapper round File::Spec::catdir, returns \f(CW\*(C`curdir\*(C'\fR from empty list
.ie n .IP """splitlast($path)""" 4
.el .IP "\f(CWsplitlast($path)\fR" 4
.IX Item "splitlast($path)"
Get component from \f(CW$path\fR (using \f(CW\*(C`chop\*(C'\fR)
and returns remaining path and compenent, as strings.
[Not used]
.SS "\s-1EXPORT\s0"
.IX Subsection "EXPORT"
None \- all subs are methods for \f(CW\*(C`File::Spec::Link\*(C'\fR.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBFile::Spec\fR\|(3) \fBFile::Copy::Link\fR\|(3)
.SH "AUTHOR"
.IX Header "AUTHOR"
Robin Barker, <RMBarker@cpan.org>
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
Copyright 2003, 2005, 2006, 2007, 2011, 2014 by Robin Barker
.PP
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.