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NAME
CPAN::Meta::Prereqs::Diff - Compare dependencies between releases using CPAN::Meta.
VERSION
version 0.001004
SYNOPSIS
use CPAN::Meta::Prereqs::Diff;
my $diff = CPAN::Meta::Prereqs::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;
}
}
DESCRIPTION
This module allows relatively straight forward routines for comparing and itemizing two sets of CPAN::Meta
prerequisites, plucking out kinds of changes that are interesting.
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
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 <kentnl@cpan.org>
COPYRIGHT AND LICENSE
This software is copyright (c) 2017 by Kent Fredric <kentfredric@gmail.com>.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.