CPAN::Mini::Extract is a Perl module that can create CPAN::Mini mirrors with the archives extracted.

SYNOPSIS

# Create a CPAN extractor
my $cpan = CPAN::Mini::Extract->new(
remote => http://mirrors.kernel.org/cpan/,
local => /home/adam/.minicpan,
trace => 1,
extract => /home/adam/.cpanextracted,
extract_filter => sub { /.pm$/ and ! /b(inc|t)b/ },
extract_check => 1,
);

# Run the minicpan process
my $changes = $cpan->run;

CPAN::Mini::Extract provides a base for implementing systems that download "all" of CPAN, extract the dists and then process the files within.
It provides the same syncronisation functionality as CPAN::Mini except that it also maintains a parallel directory tree that contains a directory located at an identical path to each archive file, with a controllable subset of the files in the archive extracted below.

How does it work

CPAN::Mini::Extract starts with a CPAN::Mini local mirror, which it will optionally update before each run. Once the CPAN::Mini directory is current, it will scan both directory trees, extracting any new archives and removing any extracted archives no longer in the minicpan mirror.