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by set_uk (Pilgrim)
on Apr 12, 2003 at 12:57 UTC ( #250051=perlquestion: print w/replies, xml ) Need Help??

set_uk has asked for the wisdom of the Perl Monks concerning the following question:

I need to auto-generate a mostly static HTML site and I am trying to get to grips with HTML::Mason and the example they give in the handbook. When I run the following code:-
#!/usr/bin/perl -w use strict; # Always use strict! use Cwd; use File::Basename; use File::Find; use File::Path; use File::Spec; use HTML::Mason; # These are directories. The canonpath method removes any cruft # like doubled slashes. my ($source, $target) = map { File::Spec->canonpath($_) } @ARGV; die "Need a source and target\n" unless defined $source && defined $target; # Make target absolute because File::Find changes the current workin +g # directory as it runs. $target = File::Spec->rel2abs($target); my $interp = #HTML::Mason::Interp->new( comp_root => '/export/home/set/script +s/perl/site_build/base_dir/lib' ); HTML::Mason::Interp->new( comp_root => File::Spec->rel2abs(cwd) +); find( \&convert, $source ); sub convert { # We don't want to try to convert our autohandler or .mas # components. $_ contains the filename return unless /\.html$/; my $buffer; # This will save the component's output in $buffer $interp->out_method(\$buffer); # We want to split the path to the file into its components and # join them back together with a forward slash in order to make # a component path for Mason # # $File::Find::name has the path to the file we are looking at, # relative to the starting directory my $comp_path = join '/', File::Spec->splitdir($File::Find::name +); $interp->exec("/$comp_path"); # Strip off leading part of path that matches source directory my $name = $File::Find::name; $name =~ s/^$source//; # Generate absolute path to output file my $out_file = File::Spec->catfile( $target, $name ); # In case the directory doesn't exist, we make it mkpath(dirname($out_file)); local *RESULT; open RESULT, "> $out_file" or die "Cannot write to $out_file: $! +"; print RESULT $buffer or die "Cannot write to $out_file: $!"; close RESULT or die "Cannot close $out_file: $!"; }
With the following parameters:-
./gen* /export/home/set/scripts/perl/site_build/base_dir/htdocs/review +s /tmp
I get the following error:-
Your component path (/export/home/set/scripts/perl/site_build/base_dir +/htdocs/reviews/test.html) matches a real file on disk (/export/home/ +set/scripts/perl/site_build/base_dir/htdocs/reviews/test.html). Have + you read about the component root in the Administrator's Manual (HTM +L::Mason::Admin)? at /usr/local/lib/perl5/site_perl/5.8.0/HTML/Mason/ +Resolver/ line 91. could not find component for initial path '/export/home/set/scripts/pe +rl/site_build/base_dir/htdocs/reviews/test.html' Stack: [/usr/local/lib/perl5/site_perl/5.8.0/Exception/] [/usr/local/lib/perl5/site_perl/5.8.0/HTML/Mason/] [/usr/local/lib/perl5/site_perl/5.8.0/HTML/Mason/] [/usr/local/lib/perl5/site_perl/5.8.0/Class/] [/usr/local/lib/perl5/site_perl/5.8.0/Class/] [/usr/local/lib/perl5/site_perl/5.8.0/HTML/Mason/] [/usr/local/lib/perl5/site_perl/5.8.0/HTML/Mason/] [./] [/usr/local/lib/perl5/5.8.0/File/] [/usr/local/lib/perl5/5.8.0/File/] [/usr/local/lib/perl5/5.8.0/File/] [./] Stack: [/usr/local/lib/perl5/site_perl/5.8.0/HTML/Mason/] [/usr/local/lib/perl5/site_perl/5.8.0/HTML/Mason/] [/usr/local/lib/perl5/site_perl/5.8.0/HTML/Mason/]
I dont know enough yet to identify what the issue is - but as I am running it out of the box as it were I thought others might also have had the same issue and could point me in the right direction.

Replies are listed 'Best First'.
Re: HTML::Mason
by IlyaM (Parson) on Apr 12, 2003 at 13:51 UTC
    Paths to components are always relative to component root. If your component root is /foo/bar and your component path is /foo/bar than it corresponds to file /foo/bar/foo/bar. It seems that Mason treats this situation as error (as it is very unlickely that a component root is same as a component path) so it produces this error.

    Solution: if you want to use a component paths which match filenames use component root == '/' (BTW I think it is default when you use HTML::Mason in standalone mode but I'm not sure). Or set component root to something else and use correct component paths.

    Ilya Martynov,
    CTO IPonWEB (UK) Ltd
    Quality Perl Programming and Unix Support UK managed @ offshore prices -
    Personal website -

      Tried that and it then complains saying it cant find the components from / as follows:-
      could not find component for path '/lib/header.mas' Stack: [/usr/local/lib/perl5/site_perl/5.8.0/Exception/] [/usr/local/lib/perl5/site_perl/5.8.0/HTML/Mason/] [/export/home/set/scripts/perl/site_build/base_dir/htdocs/reviews/au +tohandler:9] Stack: [/usr/local/lib/perl5/site_perl/5.8.0/HTML/Mason/] [/usr/local/lib/perl5/site_perl/5.8.0/HTML/Mason/] [/usr/local/lib/perl5/site_perl/5.8.0/HTML/Mason/]
      I'm assuming that this just doesn't work out of the box as a good example.

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