CDK CodeBuild Pipeline - possible to skip a phase on last github commit message?

Hi, Thank you for your reply. Do you know how I can put multiline commands (Such as conditionals) in my buildspec in CDK? Here is a starter buildspec I've written:

          version: '0.2',
          phases: {
            install: {
              commands: [
                `CODEBUILD_COMMIT_MESSAGE="$(git log -1 --pretty=%B)"`
              ],
              onFailure: 'ABORT'
            },
            pre_build: {
              commands: [
                `if [[ $CODEBUILD_COMMIT_MESSAGE == *"SKIP_BUILD"* ]]; then`,
                `echo "Skipping build actions"`,
                `else`,
                `build.sh`,
                `fi`
              ],
              onFailure: 'ABORT'
            },
            build: { commands: [`echo reached home safely`] },
            post_build: { commands: [`echo reached home safely`] }
          },
          proxy: {
            uploadArtifacts: 'no'
          }
        }),```

Unfortunately, JSON does not allow multi-line strings which you need for conditional shell commands. You can use the \n control character, but this affects the readability. Alternatively you can write your buildspec in YAML because YAML is the native format for buildspecs: https://docs.aws.amazon.com/codebuild/latest/userguide/build-spec-ref.html. Use the | character for a multi-line string value in YAML. CDK does not expose a method to inline a YAML buildspec at synth-time. You could do this yourself by parsing existing YAML into a JS object and passing the result to BuildSpec.fromObject.