feat(codebuild): add startBatchBuild option

packages/@aws-cdk/aws-codebuild/README.md

@@ -90,6 +90,7 @@ const gitHubSource = codebuild.Source.gitHub({
   owner: 'awslabs',
   repo: 'aws-cdk',
   webhook: true, // optional, default: true if `webhookFilters` were provided, false otherwise
+  startBatchBuild: true, // optional, default is false
   webhookFilters: [
     codebuild.FilterGroup
       .inEventOf(codebuild.EventAction.PUSH)

packages/@aws-cdk/aws-codebuild/lib/source.ts

@@ -482,6 +482,13 @@ interface ThirdPartyGitSourceProps extends GitSourceProps {
    */
   readonly webhook?: boolean;
 
+  /**
+   * Start a batch build instead of a standard one.
+   *
+   * @default false
+   */
+  readonly startBatchBuild?: boolean;
+
   /**
    * A list of webhook filters that can constraint what events in the repository will trigger a build.
    * A build is triggered if any of the provided filter groups match.
@@ -500,13 +507,15 @@ abstract class ThirdPartyGitSource extends GitSource {
   protected readonly webhookFilters: FilterGroup[];
   private readonly reportBuildStatus: boolean;
   private readonly webhook?: boolean;
+  private readonly startBatchBuild?: boolean;
 
   protected constructor(props: ThirdPartyGitSourceProps) {
     super(props);
 
     this.webhook = props.webhook;
     this.reportBuildStatus = props.reportBuildStatus === undefined ? true : props.reportBuildStatus;
     this.webhookFilters = props.webhookFilters || [];
+    this.startBatchBuild = props.startBatchBuild;
   }
 
   public bind(_scope: CoreConstruct, _project: IProject): SourceConfig {
@@ -522,6 +531,7 @@ abstract class ThirdPartyGitSource extends GitSource {
       sourceVersion: superConfig.sourceVersion,
       buildTriggers: webhook === undefined ? undefined : {
         webhook,
+        buildType: this.startBatchBuild ? 'BUILD_BATCH' : undefined,
         filterGroups: anyFilterGroupsProvided ? this.webhookFilters.map(fg => fg._toJson()) : undefined,
       },
     };

packages/@aws-cdk/aws-codebuild/test/test.codebuild.ts

@@ -694,6 +694,46 @@ export = {
 
       test.done();
     },
+
+    'with startBatchBuild option'(test: Test) {
+      const stack = new cdk.Stack();
+
+      new codebuild.Project(stack, 'Project', {
+        source: codebuild.Source.gitHub({
+          owner: 'testowner',
+          repo: 'testrepo',
+          cloneDepth: 3,
+          fetchSubmodules: true,
+          webhook: true,
+          startBatchBuild: true,
+          reportBuildStatus: false,
+          webhookFilters: [
+            codebuild.FilterGroup.inEventOf(codebuild.EventAction.PUSH).andTagIsNot('stable'),
+            codebuild.FilterGroup.inEventOf(codebuild.EventAction.PULL_REQUEST_REOPENED).andBaseBranchIs('master'),
+          ],
+        }),
+      });
+
+      expect(stack).to(haveResourceLike('AWS::CodeBuild::Project', {
+        Triggers: {
+          Webhook: true,
+          BuildType: 'BUILD_BATCH',
+          FilterGroups: [
+            [
+              { Type: 'EVENT', Pattern: 'PUSH' },
+              { Type: 'HEAD_REF', Pattern: 'refs/tags/stable', ExcludeMatchedPattern: true },
+            ],
+            [
+              { Type: 'EVENT', Pattern: 'PULL_REQUEST_REOPENED' },
+              { Type: 'BASE_REF', Pattern: 'refs/heads/master' },
+            ],
+          ],
+        },
+      }));
+
+      test.done();
+    },
+
     'fail creating a Project when no build spec is given'(test: Test) {
       const stack = new cdk.Stack();