Perl6: How to find all installed modules whose file name matches the pattern?

Question

Is it possible in Perl6 to find all installed modules whose file name matches the template?

In Perl5, I would write this as follows:

use File::Spec::Functions qw( catfile );

my %installed;
for my $dir ( @INC ) {
    my $glob_pattern = catfile $dir, 'App', 'DBBrowser', 'DB', '*.pm';
    map { $installed{$_}++ } glob $glob_pattern;
}

Answer 1

There is currently no way to get the original file name of the installed module. However, you can get the module names.

sub list-installed {
    my @curs       = $*REPO.repo-chain.grep(*.?prefix.?e);
    my @repo-dirs  = @curs>>.prefix;
    my @dist-dirs  = |@repo-dirs.map(*.child('dist')).grep(*.e);
    my @dist-files = |@dist-dirs.map(*.IO.dir.grep(*.IO.f).Slip);

    my $dists := gather for @dist-files -> $file {
        if try { Distribution.new( |%(from-json($file.IO.slurp)) ) } -> $dist {
            my $cur = @curs.first: {.prefix eq $file.parent.parent}
            take $_ for $dist.hash<provides>.keys;
        }
    }
}

.say for list-installed();

see: Zef :: Client.list-installed ()