.golangci.yml

# options for analysis running
run:
  timeout: 5m

linters:
  enable-all: true
  disable:
    - cyclop
    - deadcode
    - dupl
    - funlen
    - gochecknoglobals
    - gocognit
    - gocyclo
    - godot
    - godox
    - goerr113
    - golint
    - gomnd
    - ifshort
    - interfacer
    - lll
    - maligned
    - nestif
    - nlreturn
    - paralleltest
    - revive
    - scopelint
    - tagliatelle
    - testpackage
    - varnamelen
    - wrapcheck
    - wsl

# all available settings of specific linters
linters-settings:

  cyclop:
    # the maximal code complexity to report
    max-complexity: 10
    # the maximal average package complexity. If it's higher than 0.0 (float) the check is enabled (default 0.0)
    package-average: 0.0
    # should ignore tests (default false)
    skip-tests: false

  dogsled:
    # checks assignments with too many blank identifiers; default is 2
    max-blank-identifiers: 2

  dupl:
    # tokens count to trigger issue, 150 by default
    threshold: 100

  errcheck:
    # report about not checking of errors in type assertions: `a := b.(MyStruct)`;
    # default is false: such cases aren't reported by default.
    check-type-assertions: false

    # report about assignment of errors to blank identifier: `num, _ := strconv.Atoi(numStr)`;
    # default is false: such cases aren't reported by default.
    check-blank: false

    # [deprecated] comma-separated list of pairs of the form pkg:regex
    # the regex is used to ignore names within pkg. (default "fmt:.*").
    # see https://github.com/kisielk/errcheck#the-deprecated-method for details
    ignore: fmt:.*,io/ioutil:^Read.*

  errorlint:
    # Check whether fmt.Errorf uses the %w verb for formatting errors. See the readme for caveats
    errorf: true
    # Check for plain type assertions and type switches
    asserts: true
    # Check for plain error comparisons
    comparison: true

  exhaustive:
    # check switch statements in generated files also
    check-generated: false
    # indicates that switch statements are to be considered exhaustive if a
    # 'default' case is present, even if all enum members aren't listed in the
    # switch
    default-signifies-exhaustive: false

  exhaustivestruct:
    # Struct Patterns is list of expressions to match struct packages and names
    # The struct packages have the form example.com/package.ExampleStruct
    # The matching patterns can use matching syntax from https://pkg.go.dev/path#Match
    # If this list is empty, all structs are tested.
    struct-patterns:
      - '*.Test'
      - 'example.com/package.ExampleStruct'

  forbidigo:
    # Forbid the following identifiers (identifiers are written using regexp):
    forbid:
      - ^print.*$
    # - 'fmt\.Print.*'
    # Exclude godoc examples from forbidigo checks.  Default is true.
    exclude_godoc_examples: false

  funlen:
    lines: 60
    statements: 40

  gci:
    # put imports beginning with prefix after 3rd-party packages;
    # only support one prefix
    # if not set, use goimports.local-prefixes
    local-prefixes: github.com/org/project

  gocognit:
    # minimal code complexity to report, 30 by default (but we recommend 10-20)
    min-complexity: 10

  nestif:
    # minimal complexity of if statements to report, 5 by default
    min-complexity: 4

  goconst:
    # minimal length of string constant, 3 by default
    min-len: 3
    # minimal occurrences count to trigger, 3 by default
    min-occurrences: 3

  gocritic:
    enabled-tags:
      - diagnostic
      - experimental
      - opinionated
      - performance
      - style

    disabled-checks:
      - commentedOutCode
      - typeSwitchVar
      - whyNoLint
      - yodaStyleExpr

    settings:
      captLocal: # must be valid enabled check name
        # whether to restrict checker to params only (default true)
        paramsOnly: true
      elseif:
        # whether to skip balanced if-else pairs (default true)
        skipBalanced: true
      hugeParam:
        # size in bytes that makes the warning trigger (default 80)
        sizeThreshold: 80
      nestingReduce:
        # min number of statements inside a branch to trigger a warning (default 5)
        bodyWidth: 5
      rangeExprCopy:
        # size in bytes that makes the warning trigger (default 512)
        sizeThreshold: 512
        # whether to check test functions (default true)
        skipTestFuncs: true
      rangeValCopy:
        # size in bytes that makes the warning trigger (default 128)
        sizeThreshold: 32
        # whether to check test functions (default true)
        skipTestFuncs: true
      ruleguard:
        # path to a gorules file for the ruleguard checker
        rules: ''
      truncateCmp:
        # whether to skip int/uint/uintptr types (default true)
        skipArchDependent: true
      underef:
        # whether to skip (*x).method() calls where x is a pointer receiver (default true)
        skipRecvDeref: true
      unnamedResult:
        # whether to check exported functions
        checkExported: true

  gocyclo:
    # minimal code complexity to report, 30 by default (but we recommend 10-20)
    min-complexity: 10

  gofmt:
    # simplify code: gofmt with `-s` option, true by default
    simplify: true

  gofumpt:
    # Choose whether or not to use the extra rules that are disabled
    # by default
    extra-rules: false

  goimports:

  gomoddirectives:
    # Allow local `replace` directives. Default is false.
    replace-local: false
    # List of allowed `replace` directives. Default is empty.
    replace-allow-list:
      - launchpad.net/gocheck
    # Allow to not explain why the version has been retracted in the `retract` directives. Default is false.
    retract-allow-no-explanation: false
    # Forbid the use of the `exclude` directives. Default is false.
    exclude-forbidden: false

  gosec:
    # To select a subset of rules to run.
    # Available rules: https://github.com/securego/gosec#available-rules
    includes:
      - G401
      - G306
      - G101
    # To specify a set of rules to explicitly exclude.
    # Available rules: https://github.com/securego/gosec#available-rules
    excludes:
      - G204
    # To specify the configuration of rules.
    # The configuration of rules is not fully documented by gosec:
    # https://github.com/securego/gosec#configuration
    # https://github.com/securego/gosec/blob/569328eade2ccbad4ce2d0f21ee158ab5356a5cf/rules/rulelist.go#L60-L102
    config:
      G306: "0600"
      G101:
        pattern: "(?i)example"
        ignore_entropy: false
        entropy_threshold: "80.0"
        per_char_threshold: "3.0"
        truncate: "32"

  gosimple:
    # Select the Go version to target. The default is '1.13'.
    go: "1.16"
    # https://staticcheck.io/docs/options#checks
    checks: [ "all" ]

  govet:
    # report about shadowed variables
    check-shadowing: false

    # settings per analyzer
    settings:
      printf: # analyzer name, run `go tool vet help` to see all analyzers
        funcs: # run `go tool vet help printf` to see available settings for `printf` analyzer
          - (github.com/golangci/golangci-lint/pkg/logutils.Log).Infof
          - (github.com/golangci/golangci-lint/pkg/logutils.Log).Warnf
          - (github.com/golangci/golangci-lint/pkg/logutils.Log).Errorf
          - (github.com/golangci/golangci-lint/pkg/logutils.Log).Fatalf

    enable-all: true
    disable:
      - shadow

  lll:
    # max line length, lines longer will be reported. Default is 120.
    # '\t' is counted as 1 character by default, and can be changed with the tab-width option
    line-length: 120
    # tab width in spaces. Default to 1.
    tab-width: 1

  makezero:
    # Allow only slices initialized with a length of zero. Default is false.
    always: false

  misspell:
    # Correct spellings using locale preferences for US or UK.
    # Default is to use a neutral variety of English.
    # Setting locale to US will correct the British spelling of 'colour' to 'color'.
    locale: US

  nakedret:
    # make an issue if func has more lines of code than this setting and it has naked returns; default is 30
    max-func-lines: 30

  prealloc:
    # XXX: we don't recommend using this linter before doing performance profiling.
    # For most programs usage of prealloc will be a premature optimization.

    # Report preallocation suggestions only on simple loops that have no returns/breaks/continues/gotos in them.
    # True by default.
    simple: true
    range-loops: true # Report preallocation suggestions on range loops, true by default
    for-loops: false # Report preallocation suggestions on for loops, false by default

  promlinter:
    # Promlinter cannot infer all metrics name in static analysis.
    # Enable strict mode will also include the errors caused by failing to parse the args.
    strict: false
    # Please refer to https://github.com/yeya24/promlinter#usage for detailed usage.
    disabled-linters:
    #  - "Help"
    #  - "MetricUnits"
    #  - "Counter"
    #  - "HistogramSummaryReserved"
    #  - "MetricTypeInName"
    #  - "ReservedChars"
    #  - "CamelCase"
    #  - "lintUnitAbbreviations"

  predeclared:
    # comma-separated list of predeclared identifiers to not report on
    ignore: ""
    # include method names and field names (i.e., qualified names) in checks
    q: false

  nolintlint:
    # Enable to ensure that nolint directives are all used. Default is true.
    allow-unused: false
    # Disable to ensure that nolint directives don't have a leading space. Default is true.
    allow-leading-space: true
    # Exclude following linters from requiring an explanation.  Default is [].
    allow-no-explanation: []
    # Enable to require an explanation of nonzero length after each nolint directive. Default is false.
    require-explanation: false
    # Enable to require nolint directives to mention the specific linter being suppressed. Default is false.
    require-specific: true

  staticcheck:
    # Select the Go version to target. The default is '1.13'.
    go: "1.16"
    # https://staticcheck.io/docs/options#checks
    checks: [ "all" ]

  stylecheck:
    # Select the Go version to target. The default is '1.13'.
    go: "1.16"
    # https://staticcheck.io/docs/options#checks
    checks: [ "all", "-ST1000", "-ST1003", "-ST1016", "-ST1017", "-ST1020", "-ST1021", "-ST1022" ]
    # https://staticcheck.io/docs/options#dot_import_whitelist
    dot-import-whitelist:
      - fmt
    # https://staticcheck.io/docs/options#initialisms
    initialisms: [ "ACL", "API", "ASCII", "CPU", "CSS", "DNS", "EOF", "GUID", "HTML", "HTTP", "HTTPS", "ID", "IP", "JSON", "QPS", "RAM", "RPC", "SLA", "SMTP", "SQL", "SSH", "TCP", "TLS", "TTL", "UDP", "UI", "GID", "UID", "UUID", "URI", "URL", "UTF8", "VM", "XML", "XMPP", "XSRF", "XSS" ]
    # https://staticcheck.io/docs/options#http_status_code_whitelist
    http-status-code-whitelist: [ "200", "400", "404", "500" ]

  testpackage:
    # regexp pattern to skip files
    skip-regexp: (export|internal)_test\.go

  thelper:
    # The following configurations enable all checks. It can be omitted because all checks are enabled by default.
    # You can enable only required checks deleting unnecessary checks.
    test:
      first: true
      name: true
      begin: true
    benchmark:
      first: true
      name: true
      begin: true
    tb:
      first: true
      name: true
      begin: true

  unparam:
    # Inspect exported functions, default is false. Set to true if no external program/library imports your code.
    # XXX: if you enable this setting, unparam will report a lot of false-positives in text editors:
    # if it's called for subdir of a project it can't find external interfaces. All text editor integrations
    # with golangci-lint call it on a directory with the changed file.
    check-exported: false

  unused:
    go: "1.16"

  whitespace:
    multi-if: false   # Enforces newlines (or comments) after every multi-line if statement
    multi-func: false # Enforces newlines (or comments) after every multi-line function signature

severity:
  # Default value is empty string.
  # Set the default severity for issues. If severity rules are defined and the issues
  # do not match or no severity is provided to the rule this will be the default
  # severity applied. Severities should match the supported severity names of the
  # selected out format.
  # - Code climate: https://docs.codeclimate.com/docs/issues#issue-severity
  # -   Checkstyle: https://checkstyle.sourceforge.io/property_types.html#severity
  # -       Github: https://help.github.com/en/actions/reference/workflow-commands-for-github-actions#setting-an-error-message
  default-severity: error

  # The default value is false.
  # If set to true severity-rules regular expressions become case sensitive.
  case-sensitive: false