This is a nice trick, but it won't work if the script or or any modules that are loaded do a use lib or unshift @INC

Something like this should work, as long as require is not overriden elsewhere:

package ShowDependencies;
use strict;

*CORE::GLOBAL::require = \&show_require;

sub show_require (;$)  {
    my $module = shift;
    print STDERR $module, $/;
    my $retval = eval "CORE::require( $module )";
    die $@ if $@;
    return $retval;
}
1;

[download]

There is also a module (Module::Dependency) on the CPAN that builds a list of dependencies.

update: added use strict

-- simonflk

In reply to Re: robustly list any Perl code's module dependencies by simonflk
in thread robustly list any Perl code's module dependencies by Aristotle

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