.golangci.example.yml

# This file contains all available configuration options
# with their default values.

# options for analysis running
run:
  # default concurrency is a available CPU number
  concurrency: 4

  # timeout for analysis, e.g. 30s, 5m, default is 1m
  timeout: 1m

  # exit code when at least one issue was found, default is 1
  issues-exit-code: 1

  # include test files or not, default is true
  tests: true

  # list of build tags, all linters use it. Default is empty list.
  build-tags:
    - mytag

  # which dirs to skip: issues from them won't be reported;
  # can use regexp here: generated.*, regexp is applied on full path;
  # default value is empty list, but default dirs are skipped independently
  # from this option's value (see skip-dirs-use-default).
  # "/" will be replaced by current OS file path separator to properly work
  # on Windows.
  skip-dirs:
    - src/external_libs
    - autogenerated_by_my_lib

  # default is true. Enables skipping of directories:
  #   vendor$, third_party$, testdata$, examples$, Godeps$, builtin$
  skip-dirs-use-default: true

  # which files to skip: they will be analyzed, but issues from them
  # won't be reported. Default value is empty list, but there is
  # no need to include all autogenerated files, we confidently recognize
  # autogenerated files. If it's not please let us know.
  # "/" will be replaced by current OS file path separator to properly work
  # on Windows.
  skip-files:
    - ".*\\.my\\.go$"
    - lib/bad.go

  # by default isn't set. If set we pass it to "go list -mod={option}". From "go help modules":
  # If invoked with -mod=readonly, the go command is disallowed from the implicit
  # automatic updating of go.mod described above. Instead, it fails when any changes
  # to go.mod are needed. This setting is most useful to check that go.mod does
  # not need updates, such as in a continuous integration and testing system.
  # If invoked with -mod=vendor, the go command assumes that the vendor
  # directory holds the correct copies of dependencies and ignores
  # the dependency descriptions in go.mod.
  modules-download-mode: readonly|release|vendor

  # Allow multiple parallel golangci-lint instances running.
  # If false (default) - golangci-lint acquires file lock on start.
  allow-parallel-runners: false


# output configuration options
output:
  # colored-line-number|line-number|json|tab|checkstyle|code-climate, default is "colored-line-number"
  format: colored-line-number

  # print lines of code with issue, default is true
  print-issued-lines: true

  # print linter name in the end of issue text, default is true
  print-linter-name: true

  # make issues output unique by line, default is true
  uniq-by-line: true

  # add a prefix to the output file references; default is no prefix
  path-prefix: ""


# all available settings of specific linters
linters-settings:
  dogsled:
    # checks assignments with too many blank identifiers; default is 2
    max-blank-identifiers: 2
  dupl:
    # tokens count to trigger issue, 150 by default
    threshold: 100
  errcheck:
    # report about not checking of errors in type assertions: `a := b.(MyStruct)`;
    # default is false: such cases aren't reported by default.
    check-type-assertions: false

    # report about assignment of errors to blank identifier: `num, _ := strconv.Atoi(numStr)`;
    # default is false: such cases aren't reported by default.
    check-blank: false

    # [deprecated] comma-separated list of pairs of the form pkg:regex
    # the regex is used to ignore names within pkg. (default "fmt:.*").
    # see https://github.com/kisielk/errcheck#the-deprecated-method for details
    ignore: fmt:.*,io/ioutil:^Read.*

    # path to a file containing a list of functions to exclude from checking
    # see https://github.com/kisielk/errcheck#excluding-functions for details
    exclude: /path/to/file.txt
  exhaustive:
    # indicates that switch statements are to be considered exhaustive if a
    # 'default' case is present, even if all enum members aren't listed in the
    # switch
    default-signifies-exhaustive: false
  funlen:
    lines: 60
    statements: 40
  gci:
    # put imports beginning with prefix after 3rd-party packages;
    # only support one prefix
    # if not set, use goimports.local-prefixes
    local-prefixes: github.com/org/project
  gocognit:
    # minimal code complexity to report, 30 by default (but we recommend 10-20)
    min-complexity: 10
  nestif:
    # minimal complexity of if statements to report, 5 by default
    min-complexity: 4
  goconst:
    # minimal length of string constant, 3 by default
    min-len: 3
    # minimal occurrences count to trigger, 3 by default
    min-occurrences: 3
  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:
      - rangeValCopy

    # Which checks should be disabled; can't be combined with 'enabled-checks'; default is empty
    disabled-checks:
      - regexpMust

    # 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:
      - performance
    disabled-tags:
      - experimental

    settings: # settings passed to gocritic
      captLocal: # must be valid enabled check name
        paramsOnly: true
      rangeValCopy:
        sizeThreshold: 32
  gocyclo:
    # minimal code complexity to report, 30 by default (but we recommend 10-20)
    min-complexity: 10
  godot:
    # check all top-level comments, not only declarations
    check-all: false
  godox:
    # report any comments starting with keywords, this is useful for TODO or FIXME comments that
    # might be left in the code accidentally and should be resolved before merging
    keywords: # default keywords are TODO, BUG, and FIXME, these can be overwritten by this setting
      - NOTE
      - OPTIMIZE # marks code that should be optimized before merging
      - HACK # marks hack-arounds that should be removed before merging
  gofmt:
    # simplify code: gofmt with `-s` option, true by default
    simplify: true
  goheader:
    values:
      const:
        # define here const type values in format k:v, for example:
        # YEAR: 2020
        # COMPANY: MY COMPANY
      regexp:
        # define here regexp type values, for example
        # AUTHOR: .*@mycompany\.com
    template:
      # put here copyright header template for source code files, for example:
      #    {{ AUTHOR }} {{ COMPANY }} {{ YEAR }}
      #    SPDX-License-Identifier: Apache-2.0
      #
      #    Licensed under the Apache License, Version 2.0 (the "License");
      #    you may not use this file except in compliance with the License.
      #    You may obtain a copy of the License at:
      #
      #      http://www.apache.org/licenses/LICENSE-2.0
      #
      #    Unless required by applicable law or agreed to in writing, software
      #    distributed under the License is distributed on an "AS IS" BASIS,
      #    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      #    See the License for the specific language governing permissions and
      #    limitations under the License.
    template-path:
      # also as alternative of directive 'template' you may put the path to file with the template source
  goimports:
    # put imports beginning with prefix after 3rd-party packages;
    # it's a comma-separated list of prefixes
    local-prefixes: github.com/org/project
  golint:
    # minimal confidence for issues, default is 0.8
    min-confidence: 0.8
  gomnd:
    settings:
      mnd:
        # the list of enabled checks, see https://github.com/tommy-muehle/go-mnd/#checks for description.
        checks: argument,case,condition,operation,return,assign
  gomodguard:
    allowed:
      modules:                                                        # List of allowed modules
        # - gopkg.in/yaml.v2
      domains:                                                        # List of allowed module domains
        # - golang.org
    blocked:
      modules:                                                        # List of blocked modules
        # - github.com/uudashr/go-module:                             # Blocked module
        #     recommendations:                                        # Recommended modules that should be used instead (Optional)
        #       - golang.org/x/mod
        #     reason: "`mod` is the official go.mod parser library."  # Reason why the recommended module should be used (Optional)
      versions:                                                       # List of blocked module version constraints
        # - github.com/mitchellh/go-homedir:                          # Blocked module with version constraint
        #     version: "< 1.1.0"                                      # Version constraint, see https://github.com/Masterminds/semver#basic-comparisons
        #     reason: "testing if blocked version constraint works."  # Reason why the version constraint exists. (Optional)
  govet:
    # report about shadowed variables
    check-shadowing: true

    # 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

    # enable or disable analyzers by name
    enable:
      - atomicalign
    enable-all: false
    disable:
      - shadow
    disable-all: false
  depguard:
    list-type: blacklist
    include-go-root: false
    packages:
      - github.com/sirupsen/logrus
    packages-with-error-message:
      # specify an error message to output when a blacklisted package is used
      - github.com/sirupsen/logrus: "logging is allowed only by logutils.Log"
  lll:
    # max line length, lines longer will be reported. Default is 120.
    # '\t' is counted as 1 character by default, and can be changed with the tab-width option
    line-length: 120
    # tab width in spaces. Default to 1.
    tab-width: 1
  maligned:
    # print struct with more effective memory layout or not, false by default
    suggest-new: true
  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
    ignore-words:
      - someword
  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: false # Report preallocation suggestions on for loops, false by default
  nolintlint:
    # Enable to ensure that nolint directives are all used. Default is true.
    allow-unused: false
    # Disable to ensure that nolint directives don't have a leading space. Default is true.
    allow-leading-space: true
    # Exclude following linters from requiring an explanation.  Default is [].
    allow-no-explanation: []
    # Enable to require an explanation of nonzero length after each nolint directive. Default is false.
    require-explanation: true
    # Enable to require nolint directives to mention the specific linter being suppressed. Default is false.
    require-specific: true
  rowserrcheck:
    packages:
      - github.com/jmoiron/sqlx
  testpackage:
    # regexp pattern to skip files
    skip-regexp: (export|internal)_test\.go
  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
  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
  whitespace:
    multi-if: false   # Enforces newlines (or comments) after every multi-line if statement
    multi-func: false # Enforces newlines (or comments) after every multi-line function signature
  wsl:
    # If true append is only allowed to be cuddled if appending value is
    # matching variables, fields or types on line above. Default is true.
    strict-append: true
    # Allow calls and assignments to be cuddled as long as the lines have any
    # matching variables, fields or types. Default is true.
    allow-assign-and-call: true
    # Allow multiline assignments to be cuddled. Default is true.
    allow-multiline-assign: true
    # Allow declarations (var) to be cuddled.
    allow-cuddle-declarations: false
    # Allow trailing comments in ending of blocks
    allow-trailing-comment: false
    # Force newlines in end of case at this limit (0 = never).
    force-case-trailing-whitespace: 0
    # Force cuddling of err checks with err var assignment
    force-err-cuddling: false
    # Allow leading comments to be separated with empty liens
    allow-separated-leading-comment: false
  gofumpt:
    # Choose whether or not to use the extra rules that are disabled
    # by default
    extra-rules: false

  # The custom section can be used to define linter plugins to be loaded at runtime. See README doc
  #  for more info.
  custom:
    # Each custom linter should have a unique name.
     example:
      # The path to the plugin *.so. Can be absolute or local. Required for each custom linter
      path: /path/to/example.so
      # The description of the linter. Optional, just for documentation purposes.
      description: This is an example usage of a plugin linter.
      # Intended to point to the repo location of the linter. Optional, just for documentation purposes.
      original-url: github.com/golangci/example-linter

linters:
  enable:
    - megacheck
    - govet
  disable:
    - maligned
    - prealloc
  disable-all: false
  presets:
    - bugs
    - unused
  fast: false


issues:
  # List of regexps of issue texts to exclude, empty list by default.
  # But independently from this option we use default exclude patterns,
  # it can be disabled by `exclude-use-default: false`. To list all
  # excluded by default patterns execute `golangci-lint run --help`
  exclude:
    - abcdef

  # Excluding configuration per-path, per-linter, per-text and per-source
  exclude-rules:
    # Exclude some linters from running on tests files.
    - path: _test\.go
      linters:
        - gocyclo
        - errcheck
        - dupl
        - gosec

    # Exclude known linters from partially hard-vendored code,
    # which is impossible to exclude via "nolint" comments.
    - path: internal/hmac/
      text: "weak cryptographic primitive"
      linters:
        - gosec

    # Exclude some staticcheck messages
    - linters:
        - staticcheck
      text: "SA9003:"

    # Exclude lll issues for long lines with go:generate
    - linters:
        - lll
      source: "^//go:generate "

  # Independently from option `exclude` we use default exclude patterns,
  # it can be disabled by this option. To list all
  # excluded by default patterns execute `golangci-lint run --help`.
  # Default value for this option is true.
  exclude-use-default: false

  # The default value is false. If set to true exclude and exclude-rules
  # regular expressions become case sensitive.
  exclude-case-sensitive: false

  # The list of ids of default excludes to include or disable. By default it's empty.
  include:
    - EXC0002 # disable excluding of issues about comments from golint

  # 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

  # Show only new issues: if there are unstaged changes or untracked files,
  # only those changes are analyzed, else only changes in HEAD~ are analyzed.
  # It's a super-useful option for integration of golangci-lint into existing
  # large codebase. It's not practical to fix all existing issues at the moment
  # of integration: much better don't allow issues in new code.
  # Default is false.
  new: false

  # Show only new issues created after git revision `REV`
  new-from-rev: REV

  # Show only new issues created in git patch with set file path.
  new-from-patch: path/to/patch/file

severity:
  # Default value is empty string.
  # Set the default severity for issues. If severity rules are defined and the issues 
  # do not match or no severity is provided to the rule this will be the default 
  # severity applied. Severities should match the supported severity names of the 
  # selected out format.
  # - Code climate: https://docs.codeclimate.com/docs/issues#issue-severity
  # -   Checkstyle: https://checkstyle.sourceforge.io/property_types.html#severity
  # -       Github: https://help.github.com/en/actions/reference/workflow-commands-for-github-actions#setting-an-error-message
  default-severity: error

  # The default value is false. 
  # If set to true severity-rules regular expressions become case sensitive.
  case-sensitive: false

  # Default value is empty list.
  # When a list of severity rules are provided, severity information will be added to lint
  # issues. Severity rules have the same filtering capability as exclude rules except you 
  # are allowed to specify one matcher per severity rule.
  # Only affects out formats that support setting severity information.
  rules:
    - linters:
      - dupl
      severity: info