Where is the Go language dependency library installed?

Detailed explanation of the storage location of Go language dependency library

The go modules mechanism introduced in Go version 1.11 greatly simplifies dependency management. Many developers use the go mod download command to download project dependencies, but where are these dependencies stored? This article will answer in detail.

The article mentions whether the dependency library is stored in the go.mod file. The go.mod file records the project's module dependency information (dependency library name and version), but it does not store the source code of the dependent library, it is just a dependency list.

So, where is the actual storage location of the dependency library? The answer depends on your GOPATH environment variable settings. Before go modules, GOPATH specifies the workspace of the Go project, and all dependencies are stored in this directory. Even if go modules are used now, the dependency library downloaded go mod download will still be stored according to GOPATH settings, but the location is more standardized.

Therefore, to find the downloaded dependency library, check the directory pointed to by GOPATH environment variable. This directory is usually located in the user directory, such as $HOME/go (Linux/macOS) or %USERPROFILE%\go (Windows). In this directory, you will find subdirectories such as pkg and src , and the source code and cache files of the dependent library are stored in these subdirectories respectively. The specific path depends on your GOPATH configuration.

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