.golangci.yaml
# This code is licensed under the terms of the MIT license https://opensource.org/license/mit
# Copyright (c) 2021 Marat Reymers
## Golden config for golangci-lint v1.61.0
#
# This is the best config for golangci-lint based on my experience and opinion.
# It is very strict, but not extremely strict.
# Feel free to adapt and change it for your needs.
run:
# Timeout for analysis, e.g. 30s, 5m.
# Default: 1m
timeout: 3m
# This file contains only configs which differ from defaults.
# All possible options can be found here https://github.com/golangci/golangci-lint/blob/master/.golangci.reference.yml
linters-settings:
cyclop:
# The maximal code complexity to report.
# Default: 10
max-complexity: 30
# The maximal average package complexity.
# If it's higher than 0.0 (float) the check is enabled
# Default: 0.0
package-average: 10.0
errcheck:
# Report about not checking of errors in type assertions: `a := b.(MyStruct)`.
# Such cases aren't reported by default.
# Default: false
check-type-assertions: true
exhaustive:
# Program elements to check for exhaustiveness.
# Default: [ switch ]
check:
- switch
- map
exhaustruct:
# List of regular expressions to exclude struct packages and their names from checks.
# Regular expressions must match complete canonical struct package/name/structname.
# Default: []
exclude:
# std libs
- "^net/http.Client$"
- "^net/http.Cookie$"
- "^net/http.Request$"
- "^net/http.Response$"
- "^net/http.Server$"
- "^net/http.Transport$"
- "^net/url.URL$"
- "^os/exec.Cmd$"
- "^reflect.StructField$"
# public libs
- "^github.com/Shopify/sarama.Config$"
- "^github.com/Shopify/sarama.ProducerMessage$"
- "^github.com/mitchellh/mapstructure.DecoderConfig$"
- "^github.com/prometheus/client_golang/.+Opts$"
- "^github.com/spf13/cobra.Command$"
- "^github.com/spf13/cobra.CompletionOptions$"
- "^github.com/stretchr/testify/mock.Mock$"
- "^github.com/testcontainers/testcontainers-go.+Request$"
- "^github.com/testcontainers/testcontainers-go.FromDockerfile$"
- "^golang.org/x/tools/go/analysis.Analyzer$"
- "^google.golang.org/protobuf/.+Options$"
- "^gopkg.in/yaml.v3.Node$"
funlen:
# Checks the number of lines in a function.
# If lower than 0, disable the check.
# Default: 60
lines: 100
# Checks the number of statements in a function.
# If lower than 0, disable the check.
# Default: 40
statements: 50
# Ignore comments when counting lines.
# Default false
ignore-comments: true
gocognit:
# Minimal code complexity to report.
# Default: 30 (but we recommend 10-20)
min-complexity: 20
gocritic:
# Settings passed to gocritic.
# The settings key is the name of a supported gocritic checker.
# The list of supported checkers can be find in https://go-critic.github.io/overview.
settings:
captLocal:
# Whether to restrict checker to params only.
# Default: true
paramsOnly: false
underef:
# Whether to skip (*x).method() calls where x is a pointer receiver.
# Default: true
skipRecvDeref: false
gomodguard:
blocked:
# List of blocked modules.
# Default: []
modules:
- github.com/golang/protobuf:
recommendations:
- google.golang.org/protobuf
reason: "see https://developers.google.com/protocol-buffers/docs/reference/go/faq#modules"
- github.com/satori/go.uuid:
recommendations:
- github.com/google/uuid
reason: "satori's package is not maintained"
- github.com/gofrs/uuid:
recommendations:
- github.com/gofrs/uuid/v5
reason: "gofrs' package was not go module before v5"
govet:
# Enable all analyzers.
# Default: false
enable-all: true
# Disable analyzers by name.
# Run `go tool vet help` to see all analyzers.
# Default: []
disable:
- fieldalignment # too strict
# Settings per analyzer.
settings:
shadow:
# Whether to be strict about shadowing; can be noisy.
# Default: false
strict: true
inamedparam:
# Skips check for interface methods with only a single parameter.
# Default: false
skip-single-param: true
mnd:
# List of function patterns to exclude from analysis.
# Values always ignored: `time.Date`,
# `strconv.FormatInt`, `strconv.FormatUint`, `strconv.FormatFloat`,
# `strconv.ParseInt`, `strconv.ParseUint`, `strconv.ParseFloat`.
# Default: []
ignored-functions:
- args.Error
- flag.Arg
- flag.Duration.*
- flag.Float.*
- flag.Int.*
- flag.Uint.*
- os.Chmod
- os.Mkdir.*
- os.OpenFile
- os.WriteFile
- prometheus.ExponentialBuckets.*
- prometheus.LinearBuckets
nakedret:
# Make an issue if func has more lines of code than this setting, and it has naked returns.
# Default: 30
max-func-lines: 0
nolintlint:
# Exclude following linters from requiring an explanation.
# Default: []
allow-no-explanation: [funlen, gocognit, lll]
# Enable to require an explanation of nonzero length after each nolint directive.
# Default: false
require-explanation: true
# Enable to require nolint directives to mention the specific linter being suppressed.
# Default: false
require-specific: true
perfsprint:
# Optimizes into strings concatenation.
# Default: true
strconcat: false
rowserrcheck:
# database/sql is always checked
# Default: []
packages:
- github.com/jmoiron/sqlx
sloglint:
# Enforce not using global loggers.
# Values:
# - "": disabled
# - "all": report all global loggers
# - "default": report only the default slog logger
# https://github.com/go-simpler/sloglint?tab=readme-ov-file#no-global
# Default: ""
no-global: "all"
# Enforce using methods that accept a context.
# Values:
# - "": disabled
# - "all": report all contextless calls
# - "scope": report only if a context exists in the scope of the outermost function
# https://github.com/go-simpler/sloglint?tab=readme-ov-file#context-only
# Default: ""
context: "scope"
tenv:
# The option `all` will run against whole test files (`_test.go`) regardless of method/function signatures.
# Otherwise, only methods that take `*testing.T`, `*testing.B`, and `testing.TB` as arguments are checked.
# Default: false
all: true
linters:
disable-all: true
enable:
## enabled by default
- errcheck # checking for unchecked errors, these unchecked errors can be critical bugs in some cases
- gosimple # specializes in simplifying a code
- govet # reports suspicious constructs, such as Printf calls whose arguments do not align with the format string
- ineffassign # detects when assignments to existing variables are not used
- staticcheck # is a go vet on steroids, applying a ton of static analysis checks
- typecheck # like the front-end of a Go compiler, parses and type-checks Go code
- unused # checks for unused constants, variables, functions and types
## disabled by default
- asasalint # checks for pass []any as any in variadic func(...any)
- asciicheck # checks that your code does not contain non-ASCII identifiers
- bidichk # checks for dangerous unicode character sequences
- bodyclose # checks whether HTTP response body is closed successfully
- canonicalheader # checks whether net/http.Header uses canonical header
- copyloopvar # detects places where loop variables are copied (Go 1.22+)
- cyclop # checks function and package cyclomatic complexity
- dupl # tool for code clone detection
- durationcheck # checks for two durations multiplied together
- errname # checks that sentinel errors are prefixed with the Err and error types are suffixed with the Error
- errorlint # finds code that will cause problems with the error wrapping scheme introduced in Go 1.13
- exhaustive # checks exhaustiveness of enum switch statements
- fatcontext # detects nested contexts in loops
- forbidigo # forbids identifiers
- funlen # tool for detection of long functions
- gocheckcompilerdirectives # validates go compiler directive comments (//go:)
- gochecknoglobals # checks that no global variables exist
- gochecknoinits # checks that no init functions are present in Go code
- gochecksumtype # checks exhaustiveness on Go "sum types"
- gocognit # computes and checks the cognitive complexity of functions
- goconst # finds repeated strings that could be replaced by a constant
- gocritic # provides diagnostics that check for bugs, performance and style issues
- gocyclo # computes and checks the cyclomatic complexity of functions
- godot # checks if comments end in a period
- goimports # in addition to fixing imports, goimports also formats your code in the same style as gofmt
- gomoddirectives # manages the use of 'replace', 'retract', and 'excludes' directives in go.mod
- gomodguard # allow and block lists linter for direct Go module dependencies. This is different from depguard where there are different block types for example version constraints and module recommendations
- goprintffuncname # checks that printf-like functions are named with f at the end
- gosec # inspects source code for security problems
- intrange # finds places where for loops could make use of an integer range
- lll # reports long lines
- loggercheck # checks key value pairs for common logger libraries (kitlog,klog,logr,zap)
- makezero # finds slice declarations with non-zero initial length
- mirror # reports wrong mirror patterns of bytes/strings usage
- mnd # detects magic numbers
- musttag # enforces field tags in (un)marshaled structs
- nakedret # finds naked returns in functions greater than a specified function length
- nestif # reports deeply nested if statements
- nilerr # finds the code that returns nil even if it checks that the error is not nil
- nilnil # checks that there is no simultaneous return of nil error and an invalid value
- noctx # finds sending http request without context.Context
- nolintlint # reports ill-formed or insufficient nolint directives
- nonamedreturns # reports all named returns
- nosprintfhostport # checks for misuse of Sprintf to construct a host with port in a URL
- perfsprint # checks that fmt.Sprintf can be replaced with a faster alternative
- predeclared # finds code that shadows one of Go's predeclared identifiers
- promlinter # checks Prometheus metrics naming via promlint
- protogetter # reports direct reads from proto message fields when getters should be used
- reassign # checks that package variables are not reassigned
- revive # fast, configurable, extensible, flexible, and beautiful linter for Go, drop-in replacement of golint
- rowserrcheck # checks whether Err of rows is checked successfully
- sloglint # ensure consistent code style when using log/slog
- spancheck # checks for mistakes with OpenTelemetry/Census spans
- sqlclosecheck # checks that sql.Rows and sql.Stmt are closed
- stylecheck # is a replacement for golint
- tenv # detects using os.Setenv instead of t.Setenv since Go1.17
- testableexamples # checks if examples are testable (have an expected output)
- testifylint # checks usage of github.com/stretchr/testify
- testpackage # makes you use a separate _test package
- tparallel # detects inappropriate usage of t.Parallel() method in your Go test codes
- unconvert # removes unnecessary type conversions
- unparam # reports unused function parameters
- usestdlibvars # detects the possibility to use variables/constants from the Go standard library
- wastedassign # finds wasted assignment statements
- whitespace # detects leading and trailing whitespace
## you may want to enable
#- decorder # checks declaration order and count of types, constants, variables and functions
#- exhaustruct # [highly recommend to enable] checks if all structure fields are initialized
#- gci # controls golang package import order and makes it always deterministic
#- ginkgolinter # [if you use ginkgo/gomega] enforces standards of using ginkgo and gomega
#- godox # detects FIXME, TODO and other comment keywords
#- goheader # checks is file header matches to pattern
#- inamedparam # [great idea, but too strict, need to ignore a lot of cases by default] reports interfaces with unnamed method parameters
#- interfacebloat # checks the number of methods inside an interface
#- ireturn # accept interfaces, return concrete types
#- prealloc # [premature optimization, but can be used in some cases] finds slice declarations that could potentially be preallocated
#- tagalign # checks that struct tags are well aligned
#- varnamelen # [great idea, but too many false positives] checks that the length of a variable's name matches its scope
#- wrapcheck # checks that errors returned from external packages are wrapped
#- zerologlint # detects the wrong usage of zerolog that a user forgets to dispatch zerolog.Event
## disabled
#- containedctx # detects struct contained context.Context field
#- contextcheck # [too many false positives] checks the function whether use a non-inherited context
#- depguard # [replaced by gomodguard] checks if package imports are in a list of acceptable packages
#- dogsled # checks assignments with too many blank identifiers (e.g. x, _, _, _, := f())
#- dupword # [useless without config] checks for duplicate words in the source code
#- err113 # [too strict] checks the errors handling expressions
#- errchkjson # [don't see profit + I'm against of omitting errors like in the first example https://github.com/breml/errchkjson] checks types passed to the json encoding functions. Reports unsupported types and optionally reports occasions, where the check for the returned error can be omitted
#- execinquery # [deprecated] checks query string in Query function which reads your Go src files and warning it finds
#- exportloopref # [not necessary from Go 1.22] checks for pointers to enclosing loop variables
#- forcetypeassert # [replaced by errcheck] finds forced type assertions
#- gofmt # [replaced by goimports] checks whether code was gofmt-ed
#- gofumpt # [replaced by goimports, gofumports is not available yet] checks whether code was gofumpt-ed
#- gosmopolitan # reports certain i18n/l10n anti-patterns in your Go codebase
#- grouper # analyzes expression groups
#- importas # enforces consistent import aliases
#- maintidx # measures the maintainability index of each function
#- misspell # [useless] finds commonly misspelled English words in comments
#- nlreturn # [too strict and mostly code is not more readable] checks for a new line before return and branch statements to increase code clarity
#- paralleltest # [too many false positives] detects missing usage of t.Parallel() method in your Go test
#- tagliatelle # checks the struct tags
#- thelper # detects golang test helpers without t.Helper() call and checks the consistency of test helpers
#- wsl # [too strict and mostly code is not more readable] whitespace linter forces you to use empty lines
issues:
# Maximum count of issues with the same text.
# Set to 0 to disable.
# Default: 3
max-same-issues: 50
exclude-rules:
- source: "(noinspection|TODO)"
linters: [godot]
- source: "//noinspection"
linters: [gocritic]
- path: "_test\\.go"
linters:
- bodyclose
- dupl
- funlen
- goconst
- gosec
- noctx
- wrapcheck