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(pipeline): primaryOutputDirectory doesn't work

See original GitHub issue

What is the problem?

I coded just as mentioned about primaryOutputDirectory, but it fails to work. This is my code snippet.

    // The basic pipeline declaration. This sets the initial structure
    // of our pipeline
    const cdk_infra_path = "packages/cdk-infra";
    const cdk_infra_path_back = "../..";
    const cdk_out_path = "cdk.out";
    const steps = new pipelines.ShellStep("Synth", {
      input: pipelines.CodePipelineSource.codeCommit(repo, "master"),
      commands: [
        "cd " + cdk_infra_path,
        "npx lerna bootstrap --ci",
        "npx lerna run build",
        "npx cdk synth",
        "cd " + cdk_infra_path_back,
        "ln -s " + cdk_infra_path + "/" + cdk_out_path + " " + cdk_out_path,
      ],
      primaryOutputDirectory: cdk_infra_path + "/" + cdk_out_path,
    });

    const pipeline = new pipelines.CodePipeline(this, "Pipeline", {
      pipelineName: SrvConfig.PIPELINE_NAME,
      synth: steps,
    });
  }

However, it fails me at the end with this CodeBuild log output.

< snip >
      Source:
        BuildSpec: |-
          {
            "version": "0.2",
            "phases": {
              "build": {
                "commands": [
                  "cd packages/cdk-infra",
                  "npx lerna bootstrap --ci",
                  "npx lerna run build",
                  "npx cdk synth",
                  "cd ../..",
                  "ln -s packages/cdk-infra/cdk.out cdk.out"
                ]
              }
            },
            "artifacts": {
              "base-directory": "packages/cdk-infra/cdk.out",  <=====
              "files": "**/*"
            }
          }
        Type: CODEPIPELINE
< snip >
[Container] 2022/01/06 18:37:12 Phase complete: BUILD State: SUCCEEDED
[Container] 2022/01/06 18:37:12 Phase context status code:  Message: 
[Container] 2022/01/06 18:37:12 Entering phase POST_BUILD
[Container] 2022/01/06 18:37:12 Phase complete: POST_BUILD State: SUCCEEDED
[Container] 2022/01/06 18:37:12 Phase context status code:  Message: 
[Container] 2022/01/06 18:37:12 Expanding base directory path: cdk.out  <=====
[Container] 2022/01/06 18:37:12 Assembling file list
[Container] 2022/01/06 18:37:12 Expanding cdk.out
[Container] 2022/01/06 18:37:12 Skipping invalid file path cdk.out
[Container] 2022/01/06 18:37:12 Phase complete: UPLOAD_ARTIFACTS State: FAILED
[Container] 2022/01/06 18:37:12 Phase context status code: CLIENT_ERROR Message: no matching base directory path found for cdk.out

The whole log: log-events-viewer-result (1).csv

My two cents on this. Maybe this code (https://github.com/aws/aws-cdk/blob/master/packages/%40aws-cdk/pipelines/lib/main/pipeline-base.ts#L62) is reverting the path to cdk.out?

Please help. I need my CDK v2 + CodePipeline working for my customer.

Reproduction Steps

Enable CDK v2 + CodePipeline as mentioned in https://docs.aws.amazon.com/cdk/v2/guide/cdk_pipeline.html#cdk_pipeline_define
Move the CDK folder to packages/cdk-infra
Keep it working with CDK v2 + CodePipeline but it will fail on CodeBuild stage.