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|
# Just quick mess-around to see what a DSL would look like.
#
# This is what the executable could look like:
##!/usr/bin/ruby
#
#require 'puppet'
#
#require 'puppet/dsl'
#
#Puppet::DSL.import(ARGV[0])
#
#bucket = Puppet::TransBucket.new
#bucket.type = "top"
#bucket.keyword = "class"
#
#Puppet::DSL.find_all do |name, sub|
# sub.included
#end.each do |name, sub|
# bucket.push sub.export
#end
#
#puts bucket.to_manifest
#
# And here's what an example config could look like:
#
##!/usr/bin/ruby
#
#class Base
# file "/etc/passwd",
# :owner => "root",
# :group => "root",
# :mode => 0644,
# :source => "puppet://puppet/..."
#
#
#
#end
#
#class BSD < Base
# file "/etc/passwd",
# :group => "wheel"
#end
#
#include :bsd
#
class Puppet::DSL
@@subs = {}
@name = :DSLClass
class << self
include Enumerable
attr_accessor :included, :name, :objects
def each
@@subs.each do |name, sub|
yield name, sub
end
end
def export
bucket = nil
if superclass() != Puppet::DSL
bucket = superclass.export
else
bucket = Puppet::TransBucket.new
bucket.keyword = "class"
bucket.type = self.name
end
@objects.each do |type, ary|
ary.each do |name, obj|
if pobj = bucket.find { |sobj| obj.name == sobj.name && obj.type == sobj.type }
obj.each do |param, value|
pobj[param] = value
end
else
bucket.push obj
end
end
end
return bucket
end
def include(name)
if ary = @@subs.find { |n, s| n == name }
ary[1].included = true
else
raise "Could not find class %s" % name
end
end
def inherited(sub)
name = sub.to_s.downcase.gsub(/.+::/, '').intern
@@subs[name] = sub
sub.name = name
sub.initvars
sub
end
def initvars
#if superclass() == Puppet::DSL
@objects = {}
#else
# @objects = superclass.objects
#end
end
def import(file)
text = File.read(file)
# If they don't specify a parent class, then specify one
# for them.
text.gsub!(/^class \S+\s*$/) do |match|
"#{match} < Puppet::DSL"
end
eval(text, binding)
end
def method_missing(method, *args)
if klass = Puppet::Type.type(method)
method = method.intern if method.is_a? String
@objects[method] ||= {}
names = args.shift
hash = args.shift
names = [names] unless names.is_a? Array
names.each do |name|
unless obj = @objects[method][name]
obj = Puppet::TransObject.new(name, method)
@objects[method][name] = obj
end
hash.each do |param, value|
if obj[param]
raise "Cannot override %s in %s[%s]" %
[param, method, name]
else
obj[param] = value
end
end
end
else
raise "No type %s" % method
end
end
end
end
# $Id$
|