run:
  skip-files:
    # Skip autogenerated files.
    - ^.*\.(pb|y)\.go$
  timeout: 5m

output:
  sort-results: true

linters:
  enable:
    - depguard
    - errorlint
    - gofumpt
    - goimports
    - revive
    - misspell

issues:
  max-issues-per-linter: 0
  max-same-issues: 0
  exclude-rules:
    - path: _test.go
      linters:
        - errcheck

linters-settings:
  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: github.com/pkg/errors
            desc: "Use errors or fmt instead of github.com/pkg/errors"
  errcheck:
    exclude-functions:
      # Don't flag lines such as "io.Copy(io.Discard, resp.Body)".
      - io.Copy
      # The next two are used in HTTP handlers, any error is handled by the server itself.
      - io.WriteString
      - (net/http.ResponseWriter).Write
      # No need to check for errors on server's shutdown.
      - (*net/http.Server).Shutdown
      # Never check for logger errors.
      - (github.com/go-kit/log.Logger).Log
      # Never check for rollback errors as Rollback() is called when a previous error was detected.
      - (github.com/prometheus/prometheus/storage.Appender).Rollback
  goimports:
    local-prefixes: github.com/prometheus/alertmanager
  gofumpt:
    extra-rules: true
  revive:
    rules:
      - name: exported
        arguments: ["disableStutteringCheck"]
      - name: blank-imports
      - name: context-as-argument
      - name: error-return
      - name: error-strings
      - name: error-naming
      - name: if-return
      - name: increment-decrement
      - name: var-naming
      - name: var-declaration
      - name: package-comments
      - name: range
      - name: receiver-naming
      - name: time-naming
      - name: unexported-return
      - name: indent-error-flow
      - name: errorf