codepipelineActions.CodeCommitSourceAction: Default branch is 'Master'

[alexclifton4]

Describe the bug

When creating the resource codepipelineActions.CodeCommitSourceAction, if branch is not specified, it will default to 'master'.

However, when creating a CodeCommit repository through the console, the default branch is 'main', meaning that if everything is kept as default, the pipeline will fail.

Expected Behavior

The default branch on codepipelineActions.CodeCommitSourceAction should be the same as the default branch in CodeCommit

Current Behavior

codepipelineActions.CodeCommitSourceAction defaults to 'master'. If defaults are used, the following error occurs in the pipeline: The action failed because no branch named master was found in the selected AWS CodeCommit repository

Reproduction Steps

1. Create a codecommit repo from the console called 'testRepo'.
2. Upload at least one file through the console - this will create the default branch main

pipeline = codepipeline.Pipeline(self, "testPipeline")
sourceOutput = codepipeline.Artifact()
repo = codecommit.Repository.from_repository_name(self, "testRepo", "testRepo")
pipeline.add_stage(stage_name="Source", actions=[
    codepipelineActions.CodeCommitSourceAction(action_name="CodeCommit", repository=repo, output=sourceOutput)
])

4. Once CDK has deployed, observe the pipeline in the console - it will have failed.

Possible Solution

Change the default branch in CDK from "master" to "main"

Additional Information/Context

No response

CDK CLI Version

2.100.0 (build e1b5c77)

Framework Version

No response

Node.js Version

v18.12.1

OS

macOS 13.5.2 (22G91)

Language

Python

Language Version

Python 3.9.6 (default, Aug 11 2023, 19:44:49)

Other information

No response

[khushail]

Hi @alexclifton4 ,thanks for reporting this. I am able to repro this.

[github-actions]

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