The Battle of Repo Styles: How to Choose Between Mono Repo and Multi Repo#
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In software development, the way code is stored and version controlled greatly affects the workflow and efficiency of the entire project. In this regard, monorepo and multirepo are two main management styles, and the debate between them has always existed. So, what are monorepo and multirepo? And how should we choose? This article will provide a detailed introduction.
Definition of Mono Repo and Multi Repo#
Mono repo means a single repository, which refers to storing all project code in the same code repository. An extreme monorepo model is Google, where they put almost all of the company's code in one massive codebase.
Multi repo means multiple repositories, as the name suggests, code is stored in multiple repositories, and each sub-project or module has its own independent repository.
Pros and Cons of Mono Repo and Multi Repo#
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Pros of Mono Repo
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Facilitates code sharing and reuse.
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Ensures code consistency.
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For large organizations, it provides unified version management and build tools, reducing maintenance costs.
The cons are as follows:
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The repository can become very large, which may put pressure on version control systems or CI/CD systems.
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Difficult to achieve precise access control and permission management.
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Pros of Multi Repo
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Each repository can be developed and deployed independently, facilitating parallel development.
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Better access control - each repository can have its own permission control.
The cons are as follows:
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Maintaining a set of repository build and deployment configurations can be complex.
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Difficult to make changes across repositories.
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How to Choose#
Choosing between mono repo and multi repo depends on the actual needs of your project and team.
If your team has a large amount of code that needs to be shared and reused, and prefers unified build and testing tools, then monorepo may be a better choice. However, this approach requires a strong infrastructure to support it.
On the other hand, if your team prefers modularity and independent development, with each project having its own lifecycle, then multirepo is more suitable for you. This approach offers more flexibility but requires more time to configure and maintain repositories.
Overall, there is no absolute good or bad between mono repo and multi repo, only what is more suitable for your project. Choosing the right approach can help improve the development process and efficiency. It is recommended to first understand the pros and cons of each approach and then make a decision based on your own needs.