Скачать или смотреть How to Use Git Submodules with AWS CodeCommit Successfully

Learn how to properly configure your Git environment to use submodules with AWS CodeCommit, avoiding common errors and ensuring a seamless integration of repositories.
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This video is based on the question https://stackoverflow.com/q/63507695/ asked by the user 'Kev' ( https://stackoverflow.com/u/5594295/ ) and on the answer https://stackoverflow.com/a/64066095/ provided by the user 'Thomas Vandahl' ( https://stackoverflow.com/u/14340850/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Use Git Submodules with AWS CodeCommit Successfully

Git submodules are a powerful feature that allows you to include and manage repositories within other repositories. This is particularly useful for maintaining separate libraries or shared components. However, when it comes to integrating AWS CodeCommit repositories as submodules, you might encounter some common pitfalls. In this guide, we’ll guide you through the process of adding a repository as a submodule in another while avoiding common errors such as the infamous “transport not allowed” issue.

Problem Statement

Suppose you have two repositories in AWS CodeCommit: Repo1 and Repo2. You would like to include Repo2 as a submodule in Repo1. Both repositories are located within a role, rather than in the root account. When you define the submodule in your .gitmodules file like this:

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and run the command:

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You might encounter the following error:

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This error indicates that Git is not set up to permit the codecommit transport protocol for submodules.

Solution Overview

The solution to this problem lies in configuring Git to allow the codecommit transport protocol consistently. Here’s how you can achieve that step by step.

Step 1: Configure the Transport Protocol

You need to instruct Git to always allow the codecommit transport protocol. This can be easily done by executing the following command in your terminal:

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This command modifies your global Git configuration, enabling the use of the codecommit protocol across all repositories.

Step 2: Verify Your Setup

After you’ve made the configuration change, it’s essential to ensure that everything is set up correctly. Here’s what you should do next:

Check Your .gitmodules File: Ensure that your .gitmodules file still contains the correct path and URL for the submodule.

Re-initialize the Submodule: Run the following command to initialize and update the submodule:

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Test the Configuration: To verify that the configuration works as intended, proceed to clone your main repository and check if the submodule syncs without errors.

Conclusion

Integrating AWS CodeCommit repositories as submodules can initially seem tricky, especially with the limitations of the transport protocols. However, by simply allowing the codecommit transport in your Git configuration, you can seamlessly incorporate multiple repositories under a single workflow. Remember to always verify your configuration as any missteps can lead to troubleshooting delays.

Following these steps will enable you to effortlessly manage your projects and keep your code organized. Happy coding!