99: def alias(resource, name)
100:
101: resource.ref =~ /^(.+)\[/
102:
103: newref = "%s[%s]" % [$1 || resource.class.name, name]
104:
105:
106:
107:
108:
109: return if newref == resource.ref
110: if existing = @resource_table[newref]
111: return if existing == resource
112: raise(ArgumentError, "Cannot alias %s to %s; resource %s already exists" % [resource.ref, name, newref])
113: end
114: @resource_table[newref] = resource
115: @aliases[resource.ref] ||= []
116: @aliases[resource.ref] << newref
117: end