linters:
  enable:
    - depguard
    - goimports
    - gosec
    - gosimple
    - govet
    - importas
    - ineffassign
    - misspell
    - revive
    - staticcheck
    - typecheck
    - unconvert
    - unused

  disable:
    - errcheck

  run:
    concurrency: 2
    modules-download-mode: vendor

    skip-dirs:
      - docs

linters-settings:
  importas:
    # Do not allow unaliased imports of aliased packages.
    no-unaliased: true

    alias:
      # Enforce alias to prevent it accidentally being used instead of our
      # own errdefs package (or vice-versa).
      - pkg: github.com/containerd/containerd/errdefs
        alias: cerrdefs

  govet:
    check-shadowing: false
  depguard:
    list-type: blacklist
    include-go-root: true
    packages:
      # The io/ioutil package has been deprecated.
      # https://go.dev/doc/go1.16#ioutil
      - io/ioutil
  revive:
    rules:
      # FIXME make sure all packages have a description. Currently, there's many packages without.
      - name: package-comments
        disabled: true
issues:
  # The default exclusion rules are a bit too permissive, so copying the relevant ones below
  exclude-use-default: false

  exclude-rules:
    # We prefer to use an "exclude-list" so that new "default" exclusions are not
    # automatically inherited. We can decide whether or not to follow upstream
    # defaults when updating golang-ci-lint versions.
    # Unfortunately, this means we have to copy the whole exclusion pattern, as
    # (unlike the "include" option), the "exclude" option does not take exclusion
    # ID's.
    #
    # These exclusion patterns are copied from the default excluses at:
    # https://github.com/golangci/golangci-lint/blob/v1.46.2/pkg/config/issues.go#L10-L104

    # EXC0001
    - text: "Error return value of .((os\\.)?std(out|err)\\..*|.*Close|.*Flush|os\\.Remove(All)?|.*print(f|ln)?|os\\.(Un)?Setenv). is not checked"
      linters:
        - errcheck
    # EXC0006
    - text: "Use of unsafe calls should be audited"
      linters:
        - gosec
    # EXC0007
    - text: "Subprocess launch(ed with variable|ing should be audited)"
      linters:
        - gosec
    # EXC0008
    # TODO: evaluate these and fix where needed: G307: Deferring unsafe method "*os.File" on type "Close" (gosec)
    - text: "(G104|G307)"
      linters:
        - gosec
    # EXC0009
    - text: "(Expect directory permissions to be 0750 or less|Expect file permissions to be 0600 or less)"
      linters:
        - gosec
    # EXC0010
    - text: "Potential file inclusion via variable"
      linters:
        - gosec

    # Looks like the match in "EXC0007" above doesn't catch this one
    # TODO: consider upstreaming this to golangci-lint's default exclusion rules
    - text: "G204: Subprocess launched with a potential tainted input or cmd arguments"
      linters:
        - gosec
    # Looks like the match in "EXC0009" above doesn't catch this one
    # TODO: consider upstreaming this to golangci-lint's default exclusion rules
    - text: "G306: Expect WriteFile permissions to be 0600 or less"
      linters:
        - gosec

    # Exclude some linters from running on tests files.
    - path: _test\.go
      linters:
        - errcheck
        - gosec

    # Suppress golint complaining about generated types in api/types/
    - text: "type name will be used as (container|volume)\\.(Container|Volume).* by other packages, and that stutters; consider calling this"
      path: "api/types/(volume|container)/"
      linters:
        - revive
    # FIXME temporarily suppress these. See #39924
    - text: "SA1019: .*\\.Xattrs has been deprecated since Go 1.10: Use PAXRecords instead"
      linters:
        - staticcheck
    # FIXME temporarily suppress these. See #39926
    - text: "SA1019: httputil.NewClientConn"
      linters:
        - staticcheck
    # FIXME temporarily suppress these (related to the ones above)
    - text: "SA1019: httputil.ErrPersistEOF"
      linters:
        - staticcheck

  # Maximum issues count per one linter. Set to 0 to disable. Default is 50.
  max-issues-per-linter: 0

  # Maximum count of issues with the same text. Set to 0 to disable. Default is 3.
  max-same-issues: 0