version: "2"
run:
  build-tags:
    - hack
  modules-download-mode: readonly
  tests: true
  allow-parallel-runners: true
linters:
  enable:
    - copyloopvar       # Detects unnecessary copies of loop variables for Go >= 1.22
    - depguard          # Checks if package imports are in a list of acceptable packages
    - dupword           # Finds word repetitions
    - errorlint         # Find code that will cause problems with Go's error wrapping scheme
    - exptostd          # Detects functions from golang.org/x/exp/ that can be replaced by std functions
    - gocritic          # another style/metalinter (dynamic rules supported)
    - goheader          # Checks is file headers matches a given pattern
    - intrange          # Checking for loops that could use an integer range
    - nilnesserr        # Reports constructs that check for err != nil but return a different nil value error
    - nolintlint        # Find ill-formed or insufficiently explained nolint directives
    - nosprintfhostport # Detects misuses of Sprintf to construct hosts with ports in a URL
    - perfsprint        # Checks for faster fmt.Sprintf alternatives
    - revive            # Stricter drop-in replacement for golint
    - testifylint       # Checks usage of github.com/stretchr/testify
    - unconvert         # Checks for unnecessary type conversions
    - unparam           # Checks for unused function parameters
    - usestdlibvars     # Checks for things that are provided by the standard library
    - usetesting        # Reports usages of functions that have a replacement within the testing package
  settings:
    depguard:
      rules:
        cloud-provider:
          list-mode: lax
          files:
            - '!**/pkg/k0scloudprovider/*.go'
          deny:
            - pkg: k8s.io/cloud-provider
              desc: >-
                Usages of the k8s cloud provider are only allowed from within the
                k0s cloud provider package. This is to ensure that it's not
                leaking global flags into k0s.
        inttests:
          list-mode: lax
          files:
            - '!**/inttest/**/*'
          deny:
            - pkg: github.com/k0sproject/k0s/inttest
              desc: Usage of integration test code outside of integration tests.
        replacements:
          list-mode: lax
          deny:
            - pkg: gopkg.in/yaml.v2
              desc: Use sigs.k8s.io/yaml.
            - pkg: gopkg.in/yaml.v3
              desc: Use sigs.k8s.io/yaml.
            - pkg: k8s.io/utils/pointer
              desc: Use k8s.io/utils/ptr.
        tests:
          list-mode: lax
          files:
            - '!$test'
            - '!**/internal/testutil/**'
            - '!**/internal/autopilot/testutil/**'
            - '!**/inttest/**'
          deny:
            - pkg: github.com/k0sproject/k0s/internal/testutil
              desc: Usage of test code outside of tests.
            - pkg: github.com/k0sproject/k0s/internal/autopilot/testutil
              desc: Usage of test code outside of tests.
            - pkg: github.com/stretchr/testify
              desc: Usage of test code outside of tests.
    gocritic:
      disabled-checks:
        - singleCaseSwitch
      settings:
        ifElseChain:
          minThreshold: 5
    goheader:
      values:
        regexp:
          year: 202[0-9]
      template-path: .go-header.txt
    revive:
      rules:
        # This forbids to name variables "close", which seems natural for "close" functions.
        - name: redefines-builtin-id
          disabled: true
    testifylint:
      enable-all: true
      disable:
        - require-error # flags too many legitimate use cases
        - suite-thelper # flags too many legitimate use cases
  exclusions:
    generated: lax
    presets:
      - comments
      - common-false-positives
      - legacy
      - std-error-handling
    rules:
      - linters:
          - goheader
        source: ^//go:build
      - linters:
          - staticcheck
        text: '^SA1019:'
      - linters:
          - goheader
        path: pkg/component/controller/cplb/tcpproxy/.*
    paths:
      - zz_*
      - build
      - docs
      - embedded-bins
      - examples
issues:
  max-issues-per-linter: 0
  max-same-issues: 0
formatters:
  enable:
    - gofmt
  exclusions:
    generated: lax
    paths:
      - zz_*
      - build
      - docs
      - embedded-bins
      - examples