Submodules and Subtrees

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Nested repositories for managing external dependencies. Submodules track a specific commit of another repo; subtrees copy the content into the parent repo. Both have usability challenges; many teams prefer package managers instead.

Key Properties

• Submodule Pinning
• Subtree Merging
• Dependency Management

Related

• Polyrepo (submodules link polyrepos)

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git advanced submodules