// Mac
brew install go

// in $HOME/.profile or .zshrc
export GOPATH=$HOME
export PATH=$PATH:$GOPATH/bin

• go fmt formatting codes in standard format
• goimports -l -w . sort import lines
• golint ./... according to style guide, suggests proper var name, error message formatting, comment placement etc.
• go vet ./... capturing unintentional but syntactically correct code
• golanci-lint run integrating code quality tools ( with .golangci.yml file )
• go build -o [output] [target]

• go list -m -versions [module] go list shows used packages. -m flag make it show used module instead of pkgs. and -version flag module's available versions.
• go get [repository] updates dependency of module. ( attach like @v1.2.0 for specific version) ( -u flag for update. -u=patch allows only patch updates)
• go mod tiny removes non-using versions.
• go mod vendor stores all dependencies in folder named vendor. If you wanna keep it up to date, you have to use this command everytime you change any dependency.

The code below is basic template of makefile for Go. the indent must be tab.

.DEFAULT_GOAL := build

fmt:
	go fmt ./...
.PHONY:fmt

lint: fmt
	golint ./...
.PHONY:lint

vet: fmt
	go vet ./...
	shadow ./... # this tool detects shadowing variables
.PHONY:vet

build: vet
	go build
.PHONY:build

• pkg.go.dev this service automatically indexes every open source Go projects.