TrueBlocks / trueblocks-core

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Handling submodules #3665

Closed tjayrush closed 1 month ago

tjayrush commented 2 months ago

My Question:

If my github module has submodules, how can I make sure the branches stay in sync? I have main, develop, and an issue branch on the super-module repo and the sub-module repo. How do I merge into develop? What's the sequence?

ChatGPT

When working with submodules in Git, keeping the branches of both the supermodule (main project) and the submodule (nested project) in sync involves careful management of changes across both repositories. Here’s a general sequence you can follow to ensure your branches are in sync when merging changes into the develop branch:

1. Update and Merge Changes in the Submodule

First, ensure that the submodule is updated and that all necessary changes are merged into its develop branch:

Switch to the correct branch in the submodule:

cd path/to/submodule
git checkout develop

Pull the latest changes (if any):

git pull origin develop

Make and commit your changes (if you are working on a new issue or updates):

# Make your changes
git add .
git commit -m "Describe your changes here"

Push your changes:

git push origin develop

2. Update the Supermodule to Point to the Updated Submodule

After updating the submodule, you need to update the supermodule to reference the new commit of the submodule:

Go back to the supermodule directory and switch to the correct branch:

cd path/to/supermodule
git checkout develop

Update the submodule reference in the supermodule:

git submodule update --remote --merge

Commit the updated submodule reference:

git add path/to/submodule
git commit -m "Updated submodule to latest develop commit"

Push the changes in the supermodule:

git push origin develop

3. Regularly Sync and Handle Conflicts

Regular updates: Regularly pull changes from both the submodule and the supermodule to keep local copies up-to-date and reduce conflicts. Handle conflicts: If there are conflicts, especially in the submodule reference, you'll need to resolve these in the supermodule's branch before completing the merge or push.

4. Use a Continuous Integration (CI) System

Consider using a CI system to automate checks for submodule updates whenever changes are pushed to the supermodule. This can help ensure that your branches are consistently in sync and can help detect issues early.

5. Document the Process

To ensure that all contributors follow the same procedure, document the steps involved in handling submodules and the specific sequence you've established for merging branches. This documentation can be part of your project's README or in a separate CONTRIBUTING file.

By following these steps, you can effectively manage and synchronize your Git submodules and their respective branches.