.golangci.yml

run:
  timeout: 5m

linters-settings:
  govet:
    enable-all: true
    disable:
      - fieldalignment
      - shadow
  gocyclo:
    min-complexity: 15
  goconst:
    min-len: 5
    min-occurrences: 3
  misspell:
    locale: US
  funlen:
    lines: -1
    statements: 50
  godox:
    keywords:
      - FIXME
  gofumpt:
    extra-rules: false
  depguard:
    rules:
      main:
        deny:
          - pkg: "github.com/instana/testify"
            desc: not allowed
          - pkg: "github.com/pkg/errors"
            desc: Should be replaced by standard lib errors package
  gocritic:
    enabled-tags:
      - diagnostic
      - style
      - performance
    disabled-checks:
      - sloppyReassign
      - rangeValCopy
      - octalLiteral
      - paramTypeCombine # already handle by gofumpt.extra-rules
      - httpNoBody
      - unnamedResult
      - deferInLoop # TODO(ldez) should be use on the project
    settings:
      hugeParam:
        sizeThreshold: 100
  testifylint:
    disable:
      - go-require
  perfsprint:
    err-error: true
    errorf: true
    sprintf1: true
    strconcat: false

linters:
  enable-all: true
  disable:
    - gomnd # deprecated
    - execinquery # deprecated
    - sqlclosecheck # not relevant (SQL)
    - rowserrcheck # not relevant (SQL)
    - cyclop # duplicate of gocyclo
    - lll
    - dupl
    - wsl
    - nlreturn
    - mnd
    - err113
    - wrapcheck
    - exhaustive
    - exhaustruct
    - testpackage
    - tparallel
    - paralleltest
    - prealloc
    - forcetypeassert
    - bodyclose # Too many false positives: https://github.com/timakin/bodyclose/issues/30
    - varnamelen
    - noctx
    - tagliatelle
    - nilnil
    - ireturn
    - nonamedreturns
    - gochecknoglobals # TODO(ldez) should be use on the project
    - nestif # TODO(ldez) should be use on the project
    - musttag

output:
  show-stats: true
  sort-results: true
  sort-order:
    - linter
    - file

issues:
  exclude-use-default: false
  max-issues-per-linter: 0
  max-same-issues: 0
  exclude-dirs:
    - "internal/holsterv4"
  exclude:
    - 'ST1000: at least one file in a package should have a package comment' # TODO(ldez) must be fixed
    - 'package-comments: should have a package comment'
    - 'Error return value of .((os\\.)?std(out|err)\\..*|.*Close|.*Flush|os\\.Remove(All)?|.*printf?|os\\.(Un)?Setenv). is not checked'
    - 'SA1019: http.CloseNotifier has been deprecated'
    - 'exported: func name will be used as roundrobin.RoundRobinRequestRewriteListener by other packages'# TODO(ldez) must be fixed

  exclude-rules:
    - path: .*_test.go
      linters:
        - funlen
        - gosec
        - goconst
        - canonicalheader
    - path: testutils/.+
      linters:
        - gosec
    - path: cbreaker/cbreaker_test.go
      text: "`statsNetErrors` - `threshold` always receives `0.6`" # TODO(ldez) must be fixed
    - path: buffer/buffer.go
      text: "(cognitive|cyclomatic) complexity \\d+ of func `\\(\\*Buffer\\)\\.ServeHTTP` is high" # TODO(ldez) must be fixed
    - path: buffer/buffer.go
      text: "Function 'ServeHTTP' has too many statements" # TODO(ldez) must be fixed
    - path: forward/fwd.go
      text: "(cognitive|cyclomatic) complexity \\d+ of func `\\(\\*httpForwarder\\)\\.serveWebSocket` is high" # TODO(ldez) must be fixed
    - path: forward/fwd.go
      text: "Function 'serveWebSocket' has too many statements" # TODO(ldez) must be fixed
    - path: utils/handler.go
      text: "ifElseChain: rewrite if-else to switch statement" # TODO(ldez) must be fixed
    - path: memmetrics/ratio_test.go
      text: "float-compare: use assert\\.InEpsilon \\(or InDelta\\)" # TODO(ldez) must be fixed
    - path: memmetrics/roundtrip_test.go
      text: "float-compare: use assert\\.InEpsilon \\(or InDelta\\)" # TODO(ldez) must be fixed
    - path: memmetrics/anomaly_test.go
      text: "float-compare: use assert\\.InEpsilon \\(or InDelta\\)" # TODO(ldez) must be fixed