.golangci.yml

run:
  skip-dirs:
    - node_modules

linters:
  disable-all: true
  enable:
    # Enabled by default:
    - errcheck # Finds unchecked errors.
    - gosimple # Finds potential simplifications. See also: https://staticcheck.io/docs/checks/#S.
    - govet # See "go tool vet help".
    - ineffassign # Finds assignments that are not used.
    - staticcheck # See also: https://staticcheck.io/docs/checks/#SA.
    - typecheck # Parses and type-checks Go code.
    - unused # Finds unused consts, vars, funcs and types.

    # Enabled manually:
    - asciicheck # Finds non-ASCII identifiers.
    - bodyclose # Finds HTTP response bodies that are not closed.
    - copyloopvar # Finds for loop variables that are overwritten.
    - errorlint # Finds problems with error wrapping.
    - goconst # Finds repeated strings that could be replaced by a const.
    - gocyclo # Finds funcs with high cyclomatic complexity.
    - godot # Finds comments that do not end with a period.
    - gofumpt # Finds files that were not gofumpt-ed.
    - gosec # Finds security problems.
    - lll # Finds lines that exceed the line length limit.
    - makezero # Finds combinations of `make([]T, n)` and `append()`.
    - nakedret # Finds naked returns.
    - nilnil # Finds `return nil, nil`.
    - paralleltest # Finds tests that could be executed in parallel.
    - prealloc # Finds slice declarations that could be pre-allocated.
    - revive # Runs `revive` with our existing config.
    - rowserrcheck # Finds incorrect error checking when working with sql.Rows.
    - sqlclosecheck # Finds missing `Close()` when working with sql.Rows.
    - stylecheck # See also: https://staticcheck.io/docs/checks/#ST.
    - tenv # Finds incorrect use of `os.Setenv()` in tests.
    - thelper # Finds test utilities witout `t.Helper()`.
    - tparallel # Finds incorrect use of `t.Parallel()` in tests.
    - unconvert # Finds unnecessary type conversions.
    - unparam # Finds unused function parameters.

linters-settings:
  goconst:
    min-len: 5
    min-occurrences: 5

  gocyclo:
    min-complexity: 20

  godot:
    capital: true
    period: true

  gosec:
    exclude-generated: true

  lll:
    line-length: 120
    tab-width: 2

  nakedret:
    max-func-lines: 20

  revive:
    enable-all-rules: true
    rules:
      - name: add-constant
        disabled: true # Already checked by goconst.
      - name: argument-limit
        arguments: [8] # We may want to lower this, because it's a lot.
      - name: bare-return
        disabled: true # Already checked by nakedret.
      - name: banned-characters
        disabled: true # We don't have any.
      - name: cognitive-complexity
        disabled: true # We may want to enable this in the future.
      - name: confusing-naming
        disabled: true # We do actually use methods that only differ by capitalization.
      - name: cyclomatic
        disabled: true # Already checked by gocyclo.
      - name: file-header
        arguments: ['The Things Network Foundation, The Things Industries B.V.']
      - name: flag-parameter
        disabled: true # We do actually take boolean parameters in funcs.
      - name: function-length
        disabled: true # We do actually have some very long funcs.
      - name: function-result-limit
        arguments: [3]
      - name: line-length-limit
        disabled: true # Already checked by lll.
      - name: max-public-structs
        disabled: true
      - name: nested-structs
        disabled: true
      - name: unhandled-error
        disabled: true # Already checked by errcheck.

  stylecheck:
    checks:
      - all

issues:
  include:
    - EXC0002 # golint: comments on exported things
    - EXC0005 # staticcheck: unnecessary "break" in "switch"
    - EXC0011 # stylecheck: comments on exported things
    - EXC0012 # revive: comments on exported things
    - EXC0013 # revive: package comments starting with package name
    - EXC0014 # revive: exported thing comment starting with exported thing
  exclude-rules:
    # False positive: https://github.com/kunwardeep/paralleltest/issues/8.
    - linters:
        - paralleltest
      text: 'does not use range value in test Run'