.golangci.yml

run:
  tests: false
  # NOTE: Verify `go.{mod,sum}` is up-to-date by attempting to download dependencies
  # if anything is missing
  modules-download-mode: readonly

output:
  format: colored-line-number
  print-issued-lines: true
  print-linter-name: true

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

  # print linter name in the end of issue text, default is true
  govet:
    check-shadowing: true
  gocyclo:
    # NOTE: Too-low cyclomatic complexity value
    # results into worse code design and readability.
    min-complexity: 25
  maligned:
    suggest-new: true
  dupl:
    threshold: 100
  goconst:
    min-len: 2
    min-occurrences: 2
  depguard:
    list-type: blacklist
    packages:
      # logging is allowed only by logutils.Log, logrus
      # is allowed to use only in logutils package
      - github.com/sirupsen/logrus
      # NOTE: Be very, very wary not to use GPL3 software as library
      - github.com/golangci/golangci-lint
  misspell:
    locale: US
  lll:
    line-length: 140
  goimports:
    local-prefixes: github.com/sumup-oss/gocat
  gocritic:
    enabled-tags:
      - performance

linters:
  enable-all: true
  disable:
    # NOTE: Currently impossible to calculate the optimal order
    # Can be enabled when https://github.com/mdempsky/maligned/issues/9 is merged.
    - maligned
    # NOTE: "effective" golang style is full of arguable practices.
    # We don't need that and besides gofmt does the required minimum of style modifications.
    - golint
    # NOTE: Too much false positives
    - unparam
    # NOTE: It's a great linter, but gets in the way too often by not being customizable.
    - gochecknoglobals
    # NOTE: It considers too much things as magic numbers.
    - gomnd
    # NOTE: False positives.
    - wsl
    # NOTE: Pointless.
    - funlen
    - godox
    - dupl
issues:
  exclude-rules:
    - text: "weak cryptographic primitive"
      linters:
        - gosec