.golangci-lint.yml

# @see https://golangci-lint.run/usage/linters/
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: true
    # report about assignment of errors to blank identifier: `num, _ := strconv.Atoi(numStr)`;
    # default is false: such cases aren't reported by default.
    check-blank: true
    exclude-functions:
      - encoding/json.Marshal
      - encoding/json.MarshalIndent
  govet:
    # report about shadowed variables
    check-shadowing: false
    # settings per analyzer
    settings:
      printf: # analyzer name, run `go tool vet help` to see all analyzers
        funcs: # run `go tool vet help printf` to see available settings for `printf` analyzer
          - (github.com/golangci/golangci-lint/pkg/logutils.Log).Infof
          - (github.com/golangci/golangci-lint/pkg/logutils.Log).Warnf
          - (github.com/golangci/golangci-lint/pkg/logutils.Log).Errorf
          - (github.com/golangci/golangci-lint/pkg/logutils.Log).Fatalf
  gocyclo:
    # minimal code complexity to report, 30 by default (but we recommend 10-20)
    min-complexity: 20
  misspell:
    # Correct spellings using locale preferences for US or UK.
    # Default is to use a neutral variety of English.
    # Setting locale to US will correct the British spelling of 'colour' to 'color'.
    locale: US
  unused:
    # treat code as a program (not a library) and report unused exported identifiers; default is false.
    # XXX: if you enable this setting, unused will report a lot of false-positives in text editors:
    # if it's called for subdir of a project it can't find funcs usages. All text editor integrations
    # with golangci-lint call it on a directory with the changed file.
    check-exported: false
  unparam:
    # Inspect exported functions, default is false. Set to true if no external program/library imports your code.
    # XXX: if you enable this setting, unparam will report a lot of false-positives in text editors:
    # if it's called for subdir of a project it can't find external interfaces. All text editor integrations
    # with golangci-lint call it on a directory with the changed file.
    check-exported: false
  nakedret:
    # make an issue if func has more lines of code than this setting and it has naked returns; default is 30
    max-func-lines: 30
  prealloc:
    # XXX: we don't recommend using this linter before doing performance profiling.
    # For most programs usage of prealloc will be a premature optimization.
    # Report preallocation suggestions only on simple loops that have no returns/breaks/continues/gotos in them.
    # True by default.
    simple: true
    range-loops: true # Report preallocation suggestions on range loops, true by default
    for-loops: true # Report preallocation suggestions on for loops, false by default
  gocritic:
    # Which checks should be enabled; can't be combined with 'disabled-checks'.
    # See https://go-critic.github.io/overview#checks-overview.
    # To check which checks are enabled run `GL_DEBUG=gocritic golangci-lint run`.
    # By default, list of stable checks is used.
    enabled-checks:
      - nestingReduce
      - unnamedResult
      - ruleguard
      - truncateCmp
    # Enable multiple checks by tags, run `GL_DEBUG=gocritic golangci-lint` run to see all tags and checks.
    # Empty list by default. See https://github.com/go-critic/go-critic#usage -> section "Tags".
    enabled-tags:
      - diagnostic
      - style
      - performance
      - experimental
      - opinionated
    settings: # settings passed to gocritic
      rangeValCopy:
        sizeThreshold: 32
  gofmt:
    # simplify code: gofmt with `-s` option, true by default
    simplify: true
  dupword:
    # Keywords for detecting duplicate words.
    # If this list is not empty, only the words defined in this list will be detected.
    # Default: []
    keywords:
      - 'the'
      - 'and'
      - 'a'
  gci:
    # Section configuration to compare against.
    # Section names are case-insensitive and may contain parameters in ().
    # The default order of sections is `standard > default > custom > blank > dot`,
    # If `custom-order` is `true`, it follows the order of `sections` option.
    # Default: ["standard", "default"]
    sections:
      - standard # Standard section: captures all standard packages.
      - default # Default section: contains all imports that could not be matched to another section type.
      - prefix(github.com/CyberAgentAI/aoc-daifuku) # Custom section: groups all imports with the specified Prefix.
    # Enable custom order of sections.
    # If `true`, make the section order the same as the order of `sections`.
    # Default: false
    custom-order: true
  gofumpt:
    # Select the Go version to target.
    # Default: "1.15"
    # Deprecated: use the global `run.go` instead.
    lang-version: '1.20'
    # Module path which contains the source code being formatted.
    # Default: ""
    module-path: github.com/CyberAgentAI/aoc-daifuku
    # Choose whether to use the extra rules.
    # Default: false
    extra-rules: true
  gomnd:
    ignored-numbers:
      - '0x3f'
      - '0x0f'
      - '1e6'
      - '1e3'
      - '0o644'
      - '0o600'
      - '0o755'
      - '8080'
      - '9090'
      - '9081'
      - '100'
      - '50'
      - '20'
      - '10'
      - '9'
      - '8'
      - '7'
      - '6'
      - '5'
      - '4'
      - '3'
      - '2'
      - '1'
      - '0'
      - '24'
      - '30'
      - '60'
linters:
  enable:
    - errcheck
    - errorlint
    - govet
    - gocyclo
    - misspell
    - megacheck
    - unused
    - nakedret
    - prealloc
    - staticcheck
    - gosimple
    - gofmt
    - durationcheck
    - exportloopref
    - forcetypeassert
    - gci
    - goconst
    - gofumpt
    - gomnd
    - makezero
    - nilerr
    - nlreturn
    - unconvert
    - wastedassign
    - nosprintfhostport
    - loggercheck
    - dupword
    - contextcheck
    - containedctx
    - paralleltest
    - tparallel
    - usestdlibvars
    - gosec
  disable:
    - unparam # TODO:context.Contextをログなどできちんと使うようになったら復活させる
    - errchkjson
    - scopelint   # deprecated
    - deadcode    # deprecated
    - structcheck # deprecated
    - varcheck    # deprecated
  enable-all: false
  presets:
    - bugs
    - unused
  fast: false
issues:
  max-issues-per-linter: 0
  max-same-issues: 0
  # Excluding configuration per-path, per-linter, per-text and per-source
  exclude-rules:
    - text: "don't use an underscore in package name"
      linters:
        - golint
    - text: 'Use of weak random number generator'
      linters:
        - gosec
    - text: 'missing cases in switch of type'
      linters:
        - exhaustive
run:
  timeout: 10m
  skip-dirs:
    - datastore/datastoresql
    - mock
    - service
    - filestore
    - model

  allow-parallel-runners: true