[dbsrgits/DBIx-Class-DeploymentHandler.git] / lib / DBIx / Class / DeploymentHandler / HandlesVersioning.pm

package DBIx::Class::DeploymentHandler::HandlesVersioning;
use Moose::Role;

requires 'next_version_set';

1;

__END__

# normally a VersionHandler will take
# a to_version and yeild an iterator of
# "version sets" or something like that.
#
# A "version set" is basically an arrayref
# of "version numbers" (which we already know
# is vague as is.)  Typically an call to a
# VH w/ a db version of 1 and a "to_version"
# of 5 will iterate over something like this:
# [1, 2]
# [2, 3]
# [3, 4]
# [4, 5]
#
# Of course rob wants to be able to have dep
# management with his versions, so I *think* his
# would work like this:
#
# to_version = 7, db_version = 1
# [1]
# [5]
# [7]
#
# Because 7 depended on 5, 5 was installed first;
# note that this potentially never released module
# doesn't use version pairs, instead it just yeilds
# versions.  Version pairs are too much work for users
# to have to deal with in that sitation.  We may
# actually switch to this for other versioners.
#
# The upshot of all this is that the DeploymentMethod
# needs to be able to take an ArrayRef[VersionNumber],
# instead of just a pair of VersionNumber.
vim: ts=2 sw=2 expandtab
Commit	Line	Data
24794769	1	package DBIx::Class::DeploymentHandler::HandlesVersioning;
	2	use Moose::Role;
	3
	4	requires 'next_version_set';
	5
24794769	6	1;
	7
	8	__END__
	9
	10	# normally a VersionHandler will take
	11	# a to_version and yeild an iterator of
	12	# "version sets" or something like that.
	13	#
	14	# A "version set" is basically an arrayref
	15	# of "version numbers" (which we already know
	16	# is vague as is.) Typically an call to a
	17	# VH w/ a db version of 1 and a "to_version"
	18	# of 5 will iterate over something like this:
	19	# [1, 2]
	20	# [2, 3]
	21	# [3, 4]
	22	# [4, 5]
	23	#
	24	# Of course rob wants to be able to have dep
	25	# management with his versions, so I think his
	26	# would work like this:
	27	#
	28	# to_version = 7, db_version = 1
	29	# [1]
	30	# [5]
	31	# [7]
	32	#
	33	# Because 7 depended on 5, 5 was installed first;
	34	# note that this potentially never released module
	35	# doesn't use version pairs, instead it just yeilds
	36	# versions. Version pairs are too much work for users
	37	# to have to deal with in that sitation. We may
	38	# actually switch to this for other versioners.
	39	#
	40	# The upshot of all this is that the DeploymentMethod
	41	# needs to be able to take an ArrayRef[VersionNumber],
	42	# instead of just a pair of VersionNumber.
	43	vim: ts=2 sw=2 expandtab