This is Perl module Daiku.

INSTALLATION

Daiku installation is straightforward. If your CPAN shell is set up,
you should just be able to do

% cpan Daiku

Download it, unpack it, then build it as per the usual:

% perl Makefile.PL
% make && make test

Then install it:

% make install

DOCUMENTATION

Daiku documentation is available as in POD. So you can do:

% perldoc Daiku