Golang practices - go mod

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Golang-practices-go-mod
date
Mar 9, 2023
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技术&产品
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Post
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Published
Last edited time
Mar 10, 2023 01:59 AM

自建模块并跨项目调用

搭建mod私有库

Golang Practices - Go Mod

Introduction

Go is a powerful programming language that has been gaining popularity in recent years. One of the reasons for its popularity is its dependency management system, Go Modules, also known as "go mod". In this blog post, we will discuss the best practices for using go mod in your Go projects.

Creating a Private Go Module Library

One of the best practices for using go mod is to create a private module library. This is especially useful when you have multiple projects that share the same dependencies. Instead of having to download and manage the same dependencies in each project, you can create a private module library and import the necessary packages from there. To create a private module library, you can follow these steps:
  1. Create a new module by running the command go mod init {module_name} in the root directory of your project.
  1. Create a new repository on your preferred hosting platform (e.g. GitHub, GitLab, Bitbucket).
  1. Push the newly created module to the repository.
  1. In your other projects, add the following line to the go.mod file: require {module_name} v0.0.0-00010101000000-000000000000 where the version number is the latest commit hash of the module in the repository.
  1. Import the necessary packages from the private module library in your project.

Managing Dependencies

Another best practice for using go mod is to manage your dependencies carefully. It is important to keep your dependencies up-to-date to ensure that your code is secure and free of bugs. You can use the following commands to manage your dependencies:
  1. go mod tidy: This command removes unused dependencies and adds missing dependencies to your go.mod file.
  1. go mod vendor: This command creates a vendor directory in your project and copies all the necessary dependencies to that directory. This is useful when you want to build your project in an environment without internet access.
  1. go mod verify: This command verifies that the downloaded module files and the cached checksums match the entries in go.sum.

Cross-Project Dependency Management

Go mod also allows for cross-project dependency management. This means that you can share dependencies between different projects. To do this, you can follow these steps:
  1. Create a new module in the root directory of your project by running the command go mod init {module_name}.
  1. Add the necessary dependencies to the go.mod file.
  1. In your other projects, add the following line to the go.mod file: replace {module_name} => {path_to_module_directory}.
  1. Import the necessary packages from the module in your project.

Conclusion

Go mod is a powerful dependency management system that can make the development process smoother and more efficient. By following the best practices outlined in this blog post, you can ensure that your projects are well-organized, secure, and easy to manage. Happy coding!

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