golangci-lint

golangci-lint documentation

Version in MegaLinter: 1.52.2
Visit Official Web Site
See How to configure golangci-lint rules
- If custom .golangci.yml config file is not found, .golangci.yml will be used
See How to disable golangci-lint rules in files
See Index of problems detected by golangci-lint

Configuration in MegaLinter

Enable golangci-lint by adding GO_GOLANGCI_LINT in ENABLE_LINTERS variable
Disable golangci-lint by adding GO_GOLANGCI_LINT in DISABLE_LINTERS variable

Variable	Description	Default value
GO_GOLANGCI_LINT_ARGUMENTS	User custom arguments to add in linter CLI call Ex: `-s --foo "bar"`
GO_GOLANGCI_LINT_FILTER_REGEX_INCLUDE	Custom regex including filter Ex: `(src\\|lib)`	Include every file
GO_GOLANGCI_LINT_FILTER_REGEX_EXCLUDE	Custom regex excluding filter Ex: `(test\\|examples)`	Exclude no file
GO_GOLANGCI_LINT_CLI_LINT_MODE	Override default CLI lint mode - `file`: Calls the linter for each file - `list_of_files`: Call the linter with the list of files as argument - `project`: Call the linter from the root of the project	`list_of_files`
GO_GOLANGCI_LINT_FILE_EXTENSIONS	Allowed file extensions. `"*"` matches any extension, `""` matches empty extension. Empty list excludes all files Ex: `[".py", ""]`	`[".go"]`
GO_GOLANGCI_LINT_FILE_NAMES_REGEX	File name regex filters. Regular expression list for filtering files by their base names using regex full match. Empty list includes all files Ex: `["Dockerfile(-.+)?", "Jenkinsfile"]`	Include every file
GO_GOLANGCI_LINT_PRE_COMMANDS	List of bash commands to run before the linter	None
GO_GOLANGCI_LINT_POST_COMMANDS	List of bash commands to run after the linter	None
GO_GOLANGCI_LINT_CONFIG_FILE	golangci-lint configuration file nameUse `LINTER_DEFAULT` to let the linter find it	`.golangci.yml`
GO_GOLANGCI_LINT_RULES_PATH	Path where to find linter configuration file	Workspace folder, then MegaLinter default rules
GO_GOLANGCI_LINT_DISABLE_ERRORS	Run linter but consider errors as warnings	`false`
GO_GOLANGCI_LINT_DISABLE_ERRORS_IF_LESS_THAN	Maximum number of errors allowed	`0`

IDE Integration

Use golangci-lint in your favorite IDE to catch errors before MegaLinter !

IDE	Extension Name	Install
Atom	go-plus	Visit Web Site
Emacs	flycheck-golandci-lint	Visit Web Site
Emacs	SpaceMacs	Visit Web Site
goland	goland	Visit Web Site
Sublime Text	SublimeLinter-contrib-golang-cilint	Visit Web Site
vim	vim-go	Visit Web Site
Visual Studio Code	vscode.Go

MegaLinter Flavours

This linter is available in the following flavours

Flavor	Description	Embedded linters
all	Default MegaLinter Flavor	114
cupcake	MegaLinter for the most commonly used languages	82
go	Optimized for GO based projects	50

Behind the scenes

How are identified applicable files

File extensions: .go

How the linting is performed

golangci-lint is called once with the list of files as arguments (list_of_files CLI lint mode)

Example calls

golangci-lint run myfile.go

golangci-lint run -c .golangci.yml myfile.go

Help content

Smart, fast linters runner.

Usage:
  golangci-lint [flags]
  golangci-lint [command]

Available Commands:
  cache       Cache control and information
  completion  Generate the autocompletion script for the specified shell
  config      Config
  help        Help
  linters     List current linters configuration
  run         Run the linters
  version     Version

Flags:
      --color string              Use color when printing; can be 'always', 'auto', or 'never' (default "auto")
  -j, --concurrency int           Concurrency (default NumCPU) (default 2)
      --cpu-profile-path string   Path to CPU profile output file
  -h, --help                      help for golangci-lint
      --mem-profile-path string   Path to memory profile output file
      --trace-path string         Path to trace output file
  -v, --verbose                   verbose output
      --version                   Print version

Use "golangci-lint [command] --help" for more information about a command.

Installation on mega-linter Docker image

Dockerfile commands :

RUN wget -O- -nv https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh \
    && golangci-lint --version

APK packages (Linux):
- go