backend.rb in terraspace-0.2.0

- old
+ new

@@ -1,18 +1,31 @@
 module Terraspace::Compiler::Dsl::Syntax::Mod
   module Backend
     def backend(name, props={})
       terraform = @structure[:terraform] ||= {}
       backend = terraform[:backend] ||= {}
-      backend_expand_all!(name, props)
+      expansion_all!(name, props)
       backend[name] = props
     end
 
-    def backend_expand_all!(backend_name, props={})
+    def expansion_all!(backend_name, props={})
       Terraspace::Compiler::Expander.new(@mod, backend_name).expand(props)
     end
 
+    # Can set opts to explicitly use an specfic backend. Example:
+    #
+    #    opts = {backend: s3}
+    #
+    # Else Terraspace autodetects the backend installed.
+    #
+    def expansion(string, opts={})
+      expander = Terraspace::Compiler::Expander.autodetect(@mod, opts)
+      expander.expansion(string)
+    end
+
+    # DEPRECATED: Will be removed in future release
     def backend_expand(backend_name, string)
-      Terraspace::Compiler::Expander.new(@mod, backend_name).expand_string(string)
+      logger.info "DEPRECATED backend_expand: instead use expansion(string)"
+      Terraspace::Compiler::Expander.new(@mod, backend_name).expansion(string)
     end
   end
 end