output:
  # Make output more digestible with quickfix in vim/emacs/etc.
  sort-results: true
  print-issued-lines: false

linters:
  # We'll track the golangci-lint default linters manually
  # instead of letting them change without our control.
  disable-all: true
  enable:
    # golangci-lint defaults:
    - gosimple
    - govet
    - ineffassign
    - staticcheck
    - unused

    # Our own extras:
    - gofumpt
    - nolintlint # lints nolint directives
    - revive
    - errorlint

    # License header check
    - goheader

linters-settings:
  govet:
    # These govet checks are disabled by default, but they're useful.
    enable:
      - niliness
      - reflectvaluecompare
      - sortslice
      - unusedwrite

  goheader:
    values:
      const:
        COMPANY: 'Uber Technologies, Inc.'
      regexp:
        YEAR_RANGE: '\d{4}(-\d{4})?'
    template: |-
      Copyright (c) {{ YEAR_RANGE }} {{ COMPANY }}

      Permission is hereby granted, free of charge, to any person obtaining a copy
      of this software and associated documentation files (the "Software"), to deal
      in the Software without restriction, including without limitation the rights
      to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
      copies of the Software, and to permit persons to whom the Software is
      furnished to do so, subject to the following conditions:

      The above copyright notice and this permission notice shall be included in
      all copies or substantial portions of the Software.

      THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
      IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
      AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
      OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
      THE SOFTWARE.

issues:
  # Print all issues reported by all linters.
  max-issues-per-linter: 0
  max-same-issues: 0

  # Don't ignore some of the issues that golangci-lint considers okay.
  # This includes documenting all exported entities.
  exclude-use-default: false

  exclude-rules:
    # Don't warn on unused parameters.
    # Parameter names are useful; replacing them with '_' is undesirable.
    - linters: [revive]
      text: 'unused-parameter: parameter \S+ seems to be unused, consider removing or renaming it as _'

    # staticcheck already has smarter checks for empty blocks.
    # revive's empty-block linter has false positives.
    # For example, as of writing this, the following is not allowed.
    #   for foo() { }
    - linters: [revive]
      text: 'empty-block: this block is empty, you can remove it'

    # It's okay if internal packages and examples in docs/
    # don't have package comments.
    - linters: [revive]
      path: '.+/internal/.+|^internal/.+'
      text: 'should have a package comment'