[aws-codebuild] support webhook ''BUILD_BATCH" BuildType

[tjenkinson]

We'd like to set the webhook trigger to trigger a batch build, instead of a standard one.

Use Case

We want to trigger the batch build from a webhook.

Proposed Solution

const gitHubSource = codebuild.Source.gitHub({
  owner: 'awslabs',
  repo: 'aws-cdk',
  webhook: 'BUILD_BATCH', // <---- also support a string/enum
  webhookFilters: [
    codebuild.FilterGroup
      .inEventOf(codebuild.EventAction.PUSH)
      .andBranchIs('master')
      .andCommitMessageIs('the commit message'),
  ], // optional, by default all pushes and Pull Requests will trigger a build
});

Other

The BuildType is not documented yet, but it is mentioned as being supported in this comment: aws-cloudformation/cloudformation-coverage-roadmap#621 (comment)

• 👋 I may be able to implement this feature request
• ⚠️ This feature might incur a breaking change

---

This is a 🚀 Feature Request

[skinny85]

Hey @tjenkinson ,

thanks for opening the issue. Unfortunately, we can't change the type of the webhook property, but we can add a new property, something like startBatchBuild?: boolean.

[tjenkinson]

That would be great 👍

[tjenkinson]

I think I’ve found the starting point for this change so I’ll prepare a pr :)

[github-actions]

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