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CPAN::Changes(3)	       User Contributed Perl Documentation		 CPAN::Changes(3)

       CPAN::Changes - Read and write Changes files

	   # Load from file
	   my $changes = CPAN::Changes->load( 'Changes' );

	   # Create a new Changes file
	   $changes = CPAN::Changes->new(
	       preamble => 'Revision history for perl module Foo::Bar'

	   $changes->add_release( {
	       version => '0.01',
	       date    => '2009-07-06',
	   } );


       It is standard practice to include a Changes file in your distribution. The purpose the
       Changes file is to help a user figure out what has changed since the last release.

       People have devised many ways to write the Changes file. A preliminary specification has
       been created (CPAN::Changes::Spec) to encourage module authors to write clear and concise

       This module will help users programmatically read and write Changes files that conform to
       the specification.

   new( %args )
       Creates a new object using %args as the initial data.

	   Used to passes a regular expression for a "next version" placeholder token.	See
	   "DEALING WITH "NEXT VERSION" PLACEHOLDERS" for an example of its usage.

   load( $filename, %args )
       Parses $filename as per CPAN::Changes::Spec.  If present, the optional %args are passed to
       the underlaying call to "new()".

   load_string( $string, %args )
       Parses $string as per CPAN::Changes::Spec.  If present, the optional %args are passed to
       the underlaying call to "new()".

   preamble( [ $preamble ] )
       Gets/sets the preamble section.

   releases( [ @releases ] )
       Without any arguments, a list of current release objects is returned sorted by ascending
       release date. When arguments are specified, all existing releases are removed and replaced
       with the supplied information. Each release may be either a regular hashref, or a
       CPAN::Changes::Release object.

	   # Hashref argument
	   $changes->releases( { version => '0.01', date => '2009-07-06' } );

	   # Release object argument
	   my $rel = CPAN::Changes::Release->new(
	       version => '0.01', date => '2009-07-06'
	   $changes->releases( $rel );

   add_release( @releases )
       Adds the release to the changes file. If a release at the same version exists, it will be
       overwritten with the supplied data.

   delete_release( @versions )
       Deletes all of the releases specified by the versions supplied to the method.

   release( $version )
       Returns the release object for the specified version. Should there be no matching release
       object, undef is returned.

   serialize( reverse => $boolean, group_sort => \&sorting_function )
       Returns all of the data as a string, suitable for saving as a Changes file.

       If reverse is provided and true, the releases are printed in the reverse order (oldest to

       If group_sort is provided, change groups are sorted according to the given function. If
       not, groups are sorted alphabetically.

   delete_empty_groups( )
       Deletes change groups without changes in all releases.

       In the working copy of a distribution, it's not uncommon to have a "next release"
       placeholder section as the first entry of the "Changes" file.

       For example, the "Changes" file of a distribution using Dist::Zilla and
       Dist::Zilla::Plugin::NextRelease would look like:

	   Revision history for Foo-Bar

	       - Add the 'frobuscate' method.

	   1.0.0     2010-11-30
	       - Convert all comments to Esperanto.

	   0.0.1     2010-09-29
	       - Original version unleashed on an unsuspecting world

       To have "CPAN::Changes" recognizes the "{{$NEXT}}" token as a valid version, you can use
       the "next_token" argument with any of the class' constructors. Note that the resulting
       release object will also be considered the latest release, regardless of its timestamp.

       To continue with our example:

	   # recognizes {{$NEXT}} as a version
	   my $changes = CPAN::Changes->load(
	       next_token => qr/{{\$NEXT}}/,

	   my @releases = $changes->releases;
	   print $releases[-1]->version;       # prints '{{$NEXT}}'

       o   CPAN::Changes::Spec

       o   Test::CPAN::Changes

       Brian Cassidy <bricas@cpan.org>

       Copyright 2011-2013 by Brian Cassidy

       This library is free software; you can redistribute it and/or modify it under the same
       terms as Perl itself.

perl v5.16.3				    2013-05-02				 CPAN::Changes(3)
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