Part 5: Navigating Pull Requests with AWS CodeCommit

Introduction to AWS CodeCommit and Pull Requests

AWS CodeCommit is a managed version control service that hosts secure and highly scalable Git repositories. While it may not be as feature-rich as some other platforms like GitHub, it is deeply integrated with AWS services, making it a compelling option for those already invested in the AWS ecosystem. Pull requests in AWS CodeCommit provide a means to collaborate, review, and merge code changes in a managed environment.

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Creating a Pull Request in AWS CodeCommit

Creating a pull request in AWS CodeCommit involves these steps:

1. Push your changes to a CodeCommit repository.
2. Open the CodeCommit console and navigate to the repository.
3. Under the ‘Source’ section, choose ‘Pull requests,’ then ‘Create pull request.’
4. Fill in the title and description, specify the source and destination branches.
5. Click ‘Create.’

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Automated Checks with AWS CodeCommit and AWS CodeBuild

AWS CodeCommit can be integrated with AWS CodeBuild for running automated builds and tests when a pull request is created. To do this:

1. Navigate to the AWS CodeBuild console and create a new build project.
2. In the source section, select AWS CodeCommit and choose your repository.
3. Configure the buildspec file or include a buildspec.yml file in your repository for CodeBuild to use. Here is a sample buildspec.yml:
4. Once the CodeBuild project is created, you can trigger it manually, or you can set up a trigger to automatically start a build when a pull request is created in AWS CodeCommit.

version: 0.2
phases:
  install:
    runtime-versions:
      nodejs: 12
  pre_build:
    commands:
      - echo "Running pre-build commands"
  build:
    commands:
      - echo "Running build commands"
  post_build:
    commands:
      - echo "Running post-build commands"
Code language: PHP (php)

This will ensure that any new pull request or updated pull request will automatically trigger a build in AWS CodeBuild, and you can see the status of this build directly in AWS CodeCommit.

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Approving and Rejecting Pull Requests

AWS CodeCommit allows you to define approval rule templates:

1. In the AWS Management Console, go to ‘AWS CodeCommit.’
2. Navigate to ‘Settings,’ then to ‘Approval rule templates.’
3. Create rules to specify the number of required approvals, or enforce certain checks before approval.

To approve a pull request:

1. Navigate to the pull request in AWS CodeCommit.
2. Under ‘Code review,’ choose ‘Approve.’

To reject a pull request:

1. Navigate to the pull request.
2. Under ‘Comments,’ specify the reasons for rejection.
3. Choose ‘Rejected’ from the available actions.

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Conclusion of Part 5

AWS CodeCommit offers robust version control and pull request features with deep integration within the AWS ecosystem. While it may lack some of the community-driven features of platforms like GitHub, it is an excellent choice for enterprises and teams already working with AWS services.

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That brings us to the end of Part 5, focusing on AWS CodeCommit. By now, you should have a comprehensive understanding of pull requests and automated checks across Bitbucket, Azure Repos, GitHub, and AWS CodeCommit. The next section will provide a final comparison and summary, as well as some concluding remarks.

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Stay tuned for the concluding section where we will tie all these threads together to provide a comprehensive view on managing pull requests and automated checks across multiple platforms.