codepipline: pipelineName and pipelineVersion attributes (#408)

Add `pipelineName` and `pipelineVersion` attributes to `Pipeline`

packages/@aws-cdk/aws-codepipeline/lib/pipeline.ts

@@ -10,8 +10,17 @@ import validation = require('./validation');
 /**
  * The ARN of a pipeline
  */
-export class PipelineArn extends cdk.Arn {
-}
+export class PipelineArn extends cdk.Arn { }
+
+/**
+ * The name of the pipeline.
+ */
+export class PipelineName extends cdk.Token { }
+
+/**
+ * The pipeline version.
+ */
+export class PipelineVersion extends cdk.Token { }
 
 export interface PipelineProps {
     /**
@@ -62,6 +71,16 @@ export class Pipeline extends cdk.Construct implements events.IEventRuleTarget {
      */
     public readonly pipelineArn: PipelineArn;
 
+    /**
+     * The name of the pipeline
+     */
+    public readonly pipelineName: PipelineName;
+
+    /**
+     * The version of the pipeline
+     */
+    public readonly pipelineVersion: PipelineVersion;
+
     /**
      * Bucket used to store output artifacts
      */
@@ -102,10 +121,13 @@ export class Pipeline extends cdk.Construct implements events.IEventRuleTarget {
 
         this.artifactBucket.grantReadWrite(this.role);
 
+        this.pipelineName = codePipeline.ref;
+        this.pipelineVersion = codePipeline.getAtt('Version');
+
         // Does not expose a Fn::GetAtt for the ARN so we'll have to make it ourselves
         this.pipelineArn = new PipelineArn(cdk.Arn.fromComponents({
             service: 'codepipeline',
-            resource: codePipeline.ref
+            resource: this.pipelineName
         }));
     }