---
version: "2"

formatters:
  enable:
    - gci
    - gofumpt
  settings:
    gci:
      sections:
        - standard
        - prefix(github.com/prometheus-community/elasticsearch_exporter)
        - default

linters:
  enable:
    - depguard
    # TODO(@sysadmind): Enable and fix the issues.
    # - errorlint
    - exptostd
    # TODO(@sysadmind): Enable and fix the issues.
    # - gocritic
    # - godot
    - loggercheck
    # TODO(@sysadmind): Enable and fix the issues.
    # - misspell
    - nilnesserr
    - nolintlint
    # TODO(@sysadmind): Enable and fix the issues.
    # - perfsprint
    - predeclared
    - revive
    - sloglint
    - testifylint
    - unconvert
    - unused
    - usestdlibvars
    - whitespace
  exclusions:
    rules:
      # Disable errcheck for test files.
      - linters:
          - errcheck
        path: _test.go

      # Disable errcheck rule for some specific functions.
      - linters:
          - errcheck
        # Taken from the default exclusions in v1.
        text: Error return value of .((os\.)?std(out|err)\..*|.*Close|.*Flush|os\.Remove(All)?|.*print(f|ln)?|os\.(Un)?Setenv). is not checked

  settings:
    revive:
      rules:
        # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md
        - name: blank-imports
        - name: comment-spacings
        - name: context-as-argument
          arguments:
            # Allow functions with test or bench signatures.
            - allowTypesBefore: '*testing.T,testing.TB'
        - name: context-keys-type
        - name: dot-imports
        - name: early-return
          arguments:
            - "preserveScope"
        # A lot of false positives: incorrectly identifies channel draining as "empty code block".
        # See https://github.com/mgechev/revive/issues/386
        - name: empty-block
          disabled: true
        - name: error-naming
        - name: error-return
        - name: error-strings
        - name: errorf
        # TODO(@sysadmind): Enable and fix the issues.
        # - name: exported
        - name: increment-decrement
        - name: indent-error-flow
          arguments:
            - "preserveScope"
        - name: package-comments
          # TODO(beorn7/sysadmind): Currently, we have a lot of missing package doc comments. Maybe we should have them.
          disabled: true
        - name: range
        - name: receiver-naming
        - name: redefines-builtin-id
        - name: superfluous-else
          arguments:
            - "preserveScope"
        - name: time-naming
        # TODO(@sysadmind): Enable and fix the issues.
        # - name: unexported-return
        - name: unreachable-code
        - name: unused-parameter
          severity: warning
          disabled: true
        - name: var-declaration
        - name: var-naming

    depguard:
      rules:
        main:
          deny:
            - pkg: "sync/atomic"
              desc: "Use go.uber.org/atomic instead of sync/atomic"
            - pkg: "github.com/stretchr/testify/assert"
              desc: "Use github.com/stretchr/testify/require instead of github.com/stretchr/testify/assert"
            - pkg: "github.com/go-kit/kit/log"
              desc: "Use github.com/go-kit/log instead of github.com/go-kit/kit/log"
            - pkg: "io/ioutil"
              desc: "Use corresponding 'os' or 'io' functions instead."
            - pkg: "regexp"
              desc: "Use github.com/grafana/regexp instead of regexp"
            - pkg: "github.com/pkg/errors"
              desc: "Use 'errors' or 'fmt' instead of github.com/pkg/errors"
            - pkg: "gzip"
              desc: "Use github.com/klauspost/compress instead of gzip"
            - pkg: "zlib"
              desc: "Use github.com/klauspost/compress instead of zlib"
            - pkg: "golang.org/x/exp/slices"
              desc: "Use 'slices' instead."
issues:
  max-issues-per-linter: 0
  max-same-issues: 0