Go Environment Setup

1. Install Golang

1.1. Download

• Downloads - The Go Programming Language

1.2. Configure Environment Variables

On Windows, directly right-click Computer to modify environment variables, then restart for them to take effect. On Linux, generally modify /etc/profile, then run source /etc/profile for it to take effect. Newer versions of Golang can use go env -w VARIABLE_NAME="" to set environment variables, which are stored in <USER_HOME>\AppData\Roaming\go\env.

1.2.1. GOROOT

The installation root directory. It is configured by default and usually does not need to be set.

Important directories include:

• bin directory
• pkg directory
• src directory

1.2.2. GOPATH

Provides a path where .go source code can be found. It is a workspace concept and can contain multiple directories. It needs to contain three folders:

src # stores source files
pkg # stores library files compiled from source files, with the .a suffix
bin # stores executable files

1.2.3. GOBIN

The location where executable files produced by go install are stored. It generally does not need to be configured and defaults to GOPATH/bin.

1.2.4. GOPROXY + GOPRIVATE

GOPROXY.IO - A Global Proxy for Go Modules

1.3. View Environment Variables

Use go env to check whether the configured environment variables are correct.

2. Common Go Commands

2.1. go build

Used to compile the source files in specified packages and their dependencies. During compilation, it looks for source files under $GOPATH/src/package.

2.2. go install

Used to compile and install specified code packages and their dependencies. Compared with go build, it only adds one more step: installing the compiled result files into the specified directory.

2.3. go run

Compiles and runs command source files.

2.4. go tool compile

go tool compile -S xxx.go generates asm.

3. Git Configuration

git.md (the related note has not been published yet)

4. VS Code

4.1. Remote Development

1. vim ~/.ssh/config

Host DEVCLOUD
   HostName server IP
   User <USER>
   Port server port
   IdentityFile <USER_HOME>\.ssh\id_rsa

2. Passwordless login to the server SSH Passwordless Login in Three Steps - CSDN Blog
3. 

5. Goland

5.1. Code Formatting

• Single-line limit

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• Import sorting

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• Spaces in comments

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• Format code

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• Inspect problems

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6. References

• Differences Between GOROOT, GOPATH, and GOBIN - Jianshu
• How a Go Program Starts Running | qcrao
• cuonglm/gocmt: Add missing comment on exported function, method, type, constant, variable in go file