.golangci.yml

---
# golangci-lint configuration file made by @ccoVeille
# Source: https://github.com/ccoVeille/golangci-lint-config-examples/
# Author: @ccoVeille
# License: MIT
# Variant: 03-safe
# Version: v1.2.0
#
linters:
  # some linters are enabled by default
  # https://golangci-lint.run/usage/linters/
  #
  # enable some extra linters
  enable:
    # Errcheck is a program for checking for unchecked errors in Go code.
    - errcheck

    # Linter for Go source code that specializes in simplifying code.
    - gosimple

    # Vet examines Go source code and reports suspicious constructs.
    - govet

    # Detects when assignments to existing variables are not used.
    - ineffassign

    # It's a set of rules from staticcheck. See https://staticcheck.io/
    - staticcheck

    # Fast, configurable, extensible, flexible, and beautiful linter for Go.
    # Drop-in replacement of golint.
    - revive

    # check imports order and makes it always deterministic.
    - gci

    # make sure to use t.Helper() when needed
    - thelper

    # mirror suggests rewrites to avoid unnecessary []byte/string conversion
    - mirror

    # detect the possibility to use variables/constants from the Go standard library.
    - usestdlibvars

    # Finds commonly misspelled English words.
    - misspell

    # Checks for duplicate words in the source code.
    - dupword

    # linter to detect errors invalid key values count
    - loggercheck

    # detects nested contexts in loops or function literals
    - fatcontext

    # Checks usage of github.com/stretchr/testify/require
    - testifylint

linters-settings:
  gci:  # define the section orders for imports
    sections:
      # Standard section: captures all standard packages.
      - standard
      # Default section: catchall that is not standard or custom
      - default
      # linters that related to local tool, so they should be separated
      - localmodule

  revive:
    rules:
      # Check for commonly mistaken usages of the sync/atomic package
      - name: atomic

      # Blank import should be only in a main or test package, or have a comment justifying it.
      - name: blank-imports

      # Spots comments not starting with a space
      - name: comment-spacings

      # context.Context() should be the first parameter of a function when provided as argument.
      - name: context-as-argument
        arguments:
          - allowTypesBefore: "*testing.T"

      # Basic types should not be used as a key in `context.WithValue`
      - name: context-keys-type

      # warns on some common mistakes when using defer statement.
      - name: defer

      # Importing with `.` makes the programs much harder to understand
      - name: dot-imports

      # suggest to simplify if-then-else constructions when possible
      - name: early-return

      # Empty blocks make code less readable and could be a symptom of a bug or unfinished refactoring.
      - name: empty-block

      # for better readability, variables of type `error` must be named with the prefix `err`.
      - name: error-naming

      # for better readability, the errors should be last in the list of returned values by a function.
      - name: error-return

      # for better readability, error messages should not be capitalized or end with punctuation or a newline.
      - name: error-strings

      # report when replacing `errors.New(fmt.Sprintf())` with `fmt.Errorf()` is possible
      - name: errorf

      # Checking if an error is nil to just after return the error or nil is redundant.
      - name: if-return

      # incrementing an integer variable by 1 is recommended to be done using the `++` operator
      - name: increment-decrement

      # highlights redundant else-blocks that can be eliminated from the code
      - name: indent-error-flow

      # This rule suggests a shorter way of writing ranges that do not use the second value.
      - name: range

      # receiver names in a method should reflect the struct name (p for Person, for example)
      - name: receiver-naming

      # redefining built in names (true, false, append, make) can lead to bugs very difficult to detect.
      - name: redefines-builtin-id

      # redundant else-blocks that can be eliminated from the code.
      - name: superfluous-else

      # prevent confusing name for variables when using `time` package
      - name: time-naming

      # warns when an exported function or method returns a value of an un-exported type.
      - name: unexported-return

      # spots and proposes to remove unreachable code. also helps to spot errors
      - name: unreachable-code

      # Functions or methods with unused parameters can be a symptom of an unfinished refactoring or a bug.
      - name: unused-parameter

      # warns on useless break statements in case clauses of switch and select statements
      - name: useless-break

      # report when a variable declaration can be simplified
      - name: var-declaration

      # warns when initialism, variable or package naming conventions are not followed.
      - name: var-naming

  dupword:
    # Keywords used to ignore detection.
    # Default: []
    ignore:
    #  - "blah" # this will accept "blah blah …" as a valid duplicate word

  misspell:
    # Correct spellings using locale preferences for US or UK.
    # Setting locale to US will correct the British spelling of 'colour' to 'color'.
    # Default ("") is to use a neutral variety of English.
    locale: US

    # List of words to ignore
    # among the one defined in https://github.com/golangci/misspell/blob/master/words.go
    ignore-words:
    #  - valor
    #  - and

    # Extra word corrections.
    extra-words:
    #  - typo: "whattever"
    #    correction: "whatever"