NAME CPAN::Meta::Prereqs::Diff - Compare dependencies between releases using CPAN::Meta. VERSION version 0.001002 SYNOPSIS use CPAN::Meta::Prereqs::Diff; my $diff = CPAN::Meta::Diff->new( new_prereqs => CPAN::Meta->load_file('Dist-Foo-1.01/META.json')->effective_prereqs old_prereqs => CPAN::Meta->load_file('Dist-Foo-1.00/META.json')->effective_prereqs ); my @changes = $diff->diff( phases => [qw( runtime build configure test )], types => [qw( requires suggests configures conflicts )], ); ## Here, the examples with printf are not needed because ->describe exists ## But they're there any way for example reasons. for my $dep (@prereqs) { if ( $dep->is_addition ) { # runtime.requires: + Foo::Bar 0.4 printf "%s.%s : + %s %s", $dep->phase, $dep->type, $dep->module, $dep->requirement; next; } if ( $dep->is_removal ) { # runtime.requires: - Foo::Bar 0.4 printf "%s.%s : - %s %s", $dep->phase, $dep->type, $dep->module, $dep->requirement; next; } if ( $dep->is_change ) { if ( $dep->is_upgrade ) { # runtime.requires: ↑ Foo::Bar 0.4 → 0.5 printf "%s.%s : \x{2191} %s \x{2192} %s", $dep->phase, $dep->type, $dep->module, $dep->old_requirement, $dep->new_requirement; next; } if ( $dep->is_downgrade ) { # runtime.requires: ↓ Foo::Bar 0.5 → 0.4 printf "%s.%s : \x{2193} %s %s \x{2192} %s", $dep->phase, $dep->type, $dep->module, $dep->old_requirement, $dep->new_requirement; next; } # changes that can't be easily determined upgrades or downgrades # runtime.requires: ~ Foo::Bar >=0.5, <=0.7 → >=0.4, <=0.8 printf "%s.%s : ~ %s %s \x{2192} %s", $dep->phase, $dep->type, $dep->module, $dep->old_requirement, $dep->new_requirement; next; } } METHODS "diff" my @out = $diff->diff( %options ); Returns a list of "Objects" that "do" "CPAN::Meta::Prereqs::Diff::Role::Change", describing the changes between "old_prereqs" and "new_prereqs" * "Addition" * "Change" * "Upgrade" * "Downgrade" * "Removal" "diff.%options" "diff.options.phases" my @out = $diff->diff( phases => [ ... ] ); ArrayRef default = [qw( configure build runtime test )] valid options = [qw( configure build runtime test develop )] "diff.options.types" my @out = $diff->diff( types => [ ... ] ); ArrayRef default = [qw( requires recommends suggests conflicts )] valid options = [qw( requires recommends suggests conflicts )] ATTRIBUTES "new_prereqs" required HashRef | CPAN::Meta::Prereqs | CPAN::Meta "old_prereqs" required HashRef | CPAN::Meta::Prereqs | CPAN::Meta AUTHOR Kent Fredric COPYRIGHT AND LICENSE This software is copyright (c) 2014 by Kent Fredric . This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.