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Steps with Examples:

1. Navigate to Your Repository

Open your terminal and navigate to the root directory of your repository:

cd /path/to/your/repo

For example:

cd ~/projects/my-main-repo

2. Add the Submodule

Use the git submodule add command to include another repository as a submodule:

git submodule add <repository-url> <path>

Example:

git submodule add https://github.com/example/library.git libs/library

Here:

• https://github.com/example/library.git is the URL of the submodule repository.
• libs/library is the directory where the submodule will be added.

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3. Commit the Changes

After adding the submodule, commit the .gitmodules file and the new submodule directory.

git add .gitmodules libs/library
git commit -m "Add submodule: library"

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4. Initialize and Update the Submodule

Fetch the contents of the submodule:

git submodule update --init --recursive

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Additional Operations:

Update Submodules

To update the submodules to the latest version:

git submodule update --remote

Remove a Submodule

If you need to remove the submodule:

1. Unstage and remove the submodule:

git rm --cached libs/library

2. Remove the submodule directory:

rm -rf libs/library

3. Delete the entry from .gitmodules:

git config -f .gitmodules --remove-section submodule.libs/library

4. Commit the changes:

git add .gitmodules
git commit -m "Remove submodule: library"

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This should guide you through adding, updating, and removing submodules with practical examples.