Git Submodules: Purpose and Use Cases

A submodule is an important concept in Git, which allows a Git repository to be imported as a subdirectory of another Git repository. In the development process of a project, there are times when you need to use code or libraries from another project without copying the entire repository into the current project, and this is where submodules come in handy.

The main function of a submodule includes:

1. Code reuse: By using Submodules, you can import the codebase of another project as a subdirectory into the current project, allowing for code reuse and sharing.
2. Dependency management: If the current project relies on other projects or libraries, you can use Submodule to manage these dependencies, ensuring consistency across different project versions.
3. Managing Submodules: Submodule enables independent management of subprojects, including updating, switching branches, and committing operations.

In short, Submodule offers a flexible way to manage dependencies and code reuse between projects, effectively organizing and managing relationships between multiple projects.