背景：下面的实践是在golang 1.19版本下进行的
什么是lint
lint是用来进行代码的静态分析工具。既在不运行代码的前提下，找出代码中不规范以及存在bug的地方。存在各种各样的lint
golangci-lint
golangci-lint提供了丰富的linter框架，通过配置可以选择开启或关闭特定的linter。
实践
- 安装
GOPATH_FIRST=$(echo $(go env GOPATH) | awk -F':' '{ print $1}')
curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b ${GOPATH_FIRST}/bin v1.21.0
或者采用下面命令
go install github.com/golangci/golangci-lint/cmd/golangci-lint
- 配置golangci-lint
在项目根目录下新建.golangci.yml文件，文件内容如下：
linters:
disable-all: true # 关闭其他linter
enable: # 下面是开启的linter列表，之后的英文注释介绍了相应linter的功能
- deadcode # Finds unused code
# - errcheck # Errcheck is a program for checking for unchecked errors in go programs. These unchecked errors can be critical bugs in some cases
- gosimple # Linter for Go source code that specializes in simplifying a code
- govet # Vet examines Go source code and reports suspicious constructs, such as Printf calls whose arguments do not align with the format string
- ineffassign # Detects when assignments to existing variables are not used
- staticcheck # Staticcheck is a go vet on steroids, applying a ton of static analysis checks
- structcheck # Finds unused struct fields
- typecheck # Like the front-end of a Go compiler, parses and type-checks Go code
- unused # Checks Go code for unused constants, variables, functions and types
- varcheck # Finds unused global variables and constants
- scopelint # Scopelint checks for unpinned variables in go programs
# - golint # Carry out the stylistic conventions put forth in Effective Go and CodeReviewComments
linters-settings:
govet: # 对于linter govet，我们手动开启了它的某些扫描规则
check-shadowing: true
check-unreachable: true
check-rangeloops: true
check-copylocks: true
配置vscode(可选)
参考：https://itcn.blog/p/3347295113.html，主要是开启golint配置使用
运行下面命令，即可进行检查代码。此命令会检查当前目录下的.golangci.yml文件，然后输出结果
golangci-lint run
