译文 | 介绍Linter以及初步了解golangci-lint
原作者：Santosh Shrestha
发布日期：2020.5.11
原文链接：https://medium.com/wesionary-team/introduction-to-linters-in-go-and-know-about-golangci-lint-6486fb2864b3
golangci-lint官网：https://golangci-lint.run/
欢迎来到学习Golang编程语言中的格式化（formatting）和提示（linting）的道路。在这篇文章中，我将通过实例向你展示GO中常用的linters。然后，我们将讨论在一个单一的包中包含GO中所有linters的linters聚合器（aggregator），并讨论哪一个更好，怎么做到这么好的。
什么是Linter？Linter是一种分析源代码的工具，用于标记编程错误、bug、风格错误和可疑的结构。-- 维基百科
使用 Linter 有很多好处。以下是其中的一些:
发现错误 尽早捕捉错误 加快代码审查 管理代码质量
在Go编程语言中，有超过50个Linter。然而，只有少数是有用的。在开源项目中，常见的方式是使用一些Linters的子集。例如：Go vet、errcheck和golint是流行的linter。
介绍一些根据其工作方式分类的linter，描述如下:
Formatting Check（格式化检查）
gofmt
gofmt是所谓的代码格式化器之一，是一个塑造源代码的工具。例如下面的代码：
package main
import "fmt"
func main() {
fmt.Println("Hello, "+"World")
}
如果使用gofmt将其格式化，会变成下面这样：
package main
import "fmt"
func main() {
fmt.Println("Hello, " + "World")
}
goimports
Goimports会完成gofmt做的所有工作，并且添加缺失的导入并删除未引用的导入。
Complexity check（复杂度检查）
gocyclo
计算并检查函数的的循环复杂性。
nakedret
在大于指定函数长度的函数中找到裸露的返回。
Style check（样式检查）
gochecknoglobals
检查代码中有没有全局变量。
golint
golint和gofmt不同。gofmt 重新格式化 Go 源代码，而 golint 则打印出样式错误。
gosimple
专门用于简化代码。
goconst
寻找可以使用常量替换的重复字符串。
misspell
找到注释中常见的拼写错误的英语单词。
unconvert
删除不必要的类型转换。
Unused code check（未使用代码的检查）
varcheck
找到未使用的全局变量和常量。
unused
检查go源码中未使用的常量、变量、函数和类型。
deadcode
只是简单找到未使用代码。
unparam
报告未使用的函数参数。
ineffassign
检测对现有变量的赋值未被使用的情况。
Performance Check（行为检查）
maligned
检查go中如果对其字段进行排序会使用更少的内存的struct（内存对齐）。
gocritic
The most opinionated Go source code linter.（这是想表达什么？）
prealloc
发现可能可以预分配的切片的声明。
Bug finding（找Bug）
scopelint
检查go代码中不可寻址的变量。
staticcheck
它是go vet的极端版本，会使用大量的静态分析检查。
gosec
对源码的安全问题进行审计。
errcheck
errcheck用来检查go源码中需要检查但未检查的错误，这些未检查的错误在某些情况下是bug。
上面我们讨论了Golang中常用的linters。问题是在我们的Go项目中使用哪一个？我们可以在一开始就启用所有linter，然后再一个个地运行。
运行各种各样的linter
顺序执行
我们可以顺序执行这些linter，但是如果我们写了很多行代码，并且需要运行二三十个linter的话，会花费许多时间。
xargs
xargs并行运行各种linter。但是如果只写了一点点代码的话，并行运行各样的linter，也会很耗时。
gometalinter
开源的linter执行器。集合了所有的linter，并且允许我们只使用一行代码就可以运行所有的linter。并行效率也比xargs高。
golangci-lint
GolangCI-Lint是一个linters聚合器。它很快速：平均比gometalinter快5倍。它很容易集成和使用，有很好的输出，并且错误判断的数量少。
典型的Linter：
执行每个linter都要使用80%的时间去解析代码，然后在linting。
golangci-Lint：
只用解析一遍代码，然后执行每个linter的linting操作。
接下来的文章展示怎么下载和在项目中使用golangci-lint
下载：
强烈建议安装发布页[1]上的特定版本的 golangci-lint。安装golangci-lint有很多方法。然而，我使用支持近两个Go版本的Go源码安装。
GO111MODULE=on
go get github.com/golangci/golangci-lint/cmd/golangci-lint@v1.26.0
快速开始：
要运行golangci-lint，执行：
golangci-lint run
这相当于：
golangci-lint run ./...
也可以指定需要分析的项目：
golangci-lint run dir1 dir2/... dir3/file1.go
通过参数关闭或开启某些linter：
// To run all the linters
golangci-lint run --enable
// To disable all the linters
golangci-lint run --enable-all
// To run specific linter
golangci-lint run --disable-all -E errcheck
查看支持的linter列表，以及哪些linter是默认开启/关闭的：
golangci-lint help linters
当然，也可以通过配置文件来修改默认开启和关闭的linter：
golangci-lint会自动寻找项目中的以下配置文件：
.golangci.yml .golangci.yaml .golangci.json golangci.toml
比如.golangci.example.yml配置文件的例子:
# 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|vendor|mod
# 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|junit-xml|github-actions
# 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: ""
# sorts results by: filepath, line and column
sort-results: false
# all available settings of specific linters
linters-settings:
cyclop:
# the maximal code complexity to report
max-complexity: 10
# the maximal average package complexity. If it's higher than 0.0 (float) the check is enabled (default 0.0)
package-average: 0.0
# should ignore tests (default false)
skip-tests: false
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.*
# [deprecated] use exclude-functions instead.
# 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
# list of functions to exclude from checking, where each entry is a single function to exclude.
# see https://github.com/kisielk/errcheck#excluding-functions for details
exclude-functions:
- io/ioutil.ReadFile
- io.Copy(*bytes.Buffer)
- io.Copy(os.Stdout)
errorlint:
# Check whether fmt.Errorf uses the %w verb for formatting errors. See the readme for caveats
errorf: true
# Check for plain type assertions and type switches
asserts: true
# Check for plain error comparisons
comparison: true
exhaustive:
# check switch statements in generated files also
check-generated: false
# 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
exhaustivestruct:
# Struct Patterns is list of expressions to match struct packages and names
# The struct packages have the form example.com/package.ExampleStruct
# The matching patterns can use matching syntax from https://pkg.go.dev/path#Match
# If this list is empty, all structs are tested.
struct-patterns:
- '*.Test'
- 'example.com/package.ExampleStruct'
forbidigo:
# Forbid the following identifiers (identifiers are written using regexp):
forbid:
- ^print.*$
- 'fmt\.Print.*'
# Exclude godoc examples from forbidigo checks. Default is true.
exclude_godoc_examples: 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
# minimum occurrences of constant string count to trigger issue, 3 by default
min-occurrences: 3
# ignore test files, false by default
ignore-tests: false
# look for existing constants matching the values, true by default
match-constant: true
# search also for duplicated numbers, false by default
numbers: false
# minimum value, only works with goconst.numbers, 3 by default
min: 3
# maximum value, only works with goconst.numbers, 3 by default
max: 3
# ignore when constant is not used as function argument, true by default
ignore-calls: true
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 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: # must be valid enabled check name
# whether to restrict checker to params only (default true)
paramsOnly: true
elseif:
# whether to skip balanced if-else pairs (default true)
skipBalanced: true
hugeParam:
# size in bytes that makes the warning trigger (default 80)
sizeThreshold: 80
nestingReduce:
# min number of statements inside a branch to trigger a warning (default 5)
bodyWidth: 5
rangeExprCopy:
# size in bytes that makes the warning trigger (default 512)
sizeThreshold: 512
# whether to check test functions (default true)
skipTestFuncs: true
rangeValCopy:
# size in bytes that makes the warning trigger (default 128)
sizeThreshold: 32
# whether to check test functions (default true)
skipTestFuncs: true
ruleguard:
# path to a gorules file for the ruleguard checker
rules: ''
truncateCmp:
# whether to skip int/uint/uintptr * (default true)
skipArchDependent: true
underef:
# whether to skip (*x).method() calls where x is a pointer receiver (default true)
skipRecvDeref: true
unnamedResult:
# whether to check exported functions
checkExported: true
gocyclo:
# minimal code complexity to report, 30 by default (but we recommend 10-20)
min-complexity: 10
godot:
# comments to be checked: `declarations`, `toplevel`, or `all`
scope: declarations
# list of regexps for excluding particular comment lines from check
exclude:
# example: exclude comments which contain numbers
# - '[0-9]+'
# check that each sentence starts with a capital letter
capital: 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
gofumpt:
# Select the Go version to target. The default is `1.15`.
lang-version: "1.15"
# Choose whether or not to use the extra rules that are disabled
# by default
extra-rules: false
goheader:
values:
const:
# define here const type values in format k:v, for example:
# 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:
# Note: {{ YEAR }} is a builtin value that returns the year relative to the current machine time.
#
# {{ 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
# ignored-numbers: 1000
# ignored-files: magic_.*.go
# ignored-functions: math.*
gomoddirectives:
# Allow local `replace` directives. Default is false.
replace-local: false
# List of allowed `replace` directives. Default is empty.
replace-allow-list:
- launchpad.net/gocheck
# Allow to not explain why the version has been retracted in the `retract` directives. Default is false.
retract-allow-no-explanation: false
# Forbid the use of the `exclude` directives. Default is false.
exclude-forbidden: false
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)
local_replace_directives: false # Set to true to raise lint issues for packages that are loaded from a local path via replace directive
gosec:
# To select a subset of rules to run.
# Available rules: https://github.com/securego/gosec#available-rules
includes:
- G401
- G306
- G101
# To specify a set of rules to explicitly exclude.
# Available rules: https://github.com/securego/gosec#available-rules
excludes:
- G204
# To specify the configuration of rules.
# The configuration of rules is not fully documented by gosec:
# https://github.com/securego/gosec#configuration
# https://github.com/securego/gosec/blob/569328eade2ccbad4ce2d0f21ee158ab5356a5cf/rules/rulelist.go#L60-L102
config:
G306: "0600"
G101:
pattern: "(?i)example"
ignore_entropy: false
entropy_threshold: "80.0"
per_char_threshold: "3.0"
truncate: "32"
gosimple:
# Select the Go version to target. The default is '1.13'.
go: "1.15"
# https://staticcheck.io/docs/options#checks
checks: [ "all" ]
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
# run `go tool vet help` to see all analyzers
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"
ifshort:
# Maximum length of variable declaration measured in number of lines, after which linter won't suggest using short syntax.
# Has higher priority than max-decl-chars.
max-decl-lines: 1
# Maximum length of variable declaration measured in number of characters, after which linter won't suggest using short syntax.
max-decl-chars: 30
importas:
# if set to `true`, force to use alias.
no-unaliased: true
# List of aliases
alias:
# using `servingv1` alias for `knative.dev/serving/pkg/apis/serving/v1` package
- pkg: knative.dev/serving/pkg/apis/serving/v1
alias: servingv1
# using `autoscalingv1alpha1` alias for `knative.dev/serving/pkg/apis/autoscaling/v1alpha1` package
- pkg: knative.dev/serving/pkg/apis/autoscaling/v1alpha1
alias: autoscalingv1alpha1
# You can specify the package path by regular expression,
# and alias by regular expression expansion syntax like below.
# see https://github.com/julz/importas#use-regular-expression for details
- pkg: knative.dev/serving/pkg/apis/(\w+)/(v[\w\d]+)
alias: $1$2
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
makezero:
# Allow only slices initialized with a length of zero. Default is false.
always: false
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
promlinter:
# Promlinter cannot infer all metrics name in static analysis.
# Enable strict mode will also include the errors caused by failing to parse the args.
strict: false
# Please refer to https://github.com/yeya24/promlinter#usage for detailed usage.
disabled-linters:
# - "Help"
# - "MetricUnits"
# - "Counter"
# - "HistogramSummaryReserved"
# - "MetricTypeInName"
# - "ReservedChars"
# - "CamelCase"
# - "lintUnitAbbreviations"
predeclared:
# comma-separated list of predeclared identifiers to not report on
ignore: ""
# include method names and field names (i.e., qualified names) in checks
q: false
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
revive:
# see https://github.com/mgechev/revive#available-rules for details.
ignore-generated-header: true
severity: warning
rules:
- name: indent-error-flow
severity: warning
- name: add-constant
severity: warning
arguments:
- maxLitCount: "3"
allowStrs: '""'
allowInts: "0,1,2"
allowFloats: "0.0,0.,1.0,1.,2.0,2."
staticcheck:
# Select the Go version to target. The default is '1.13'.
go: "1.15"
# https://staticcheck.io/docs/options#checks
checks: [ "all" ]
stylecheck:
# Select the Go version to target. The default is '1.13'.
go: "1.15"
# https://staticcheck.io/docs/options#checks
checks: [ "all", "-ST1000", "-ST1003", "-ST1016", "-ST1020", "-ST1021", "-ST1022" ]
# https://staticcheck.io/docs/options#dot_import_whitelist
dot-import-whitelist:
- fmt
# https://staticcheck.io/docs/options#initialisms
initialisms: [ "ACL", "API", "ASCII", "CPU", "CSS", "DNS", "EOF", "GUID", "HTML", "HTTP", "HTTPS", "ID", "IP", "JSON", "QPS", "RAM", "RPC", "SLA", "SMTP", "SQL", "SSH", "TCP", "TLS", "TTL", "UDP", "UI", "GID", "UID", "UUID", "URI", "URL", "UTF8", "VM", "XML", "XMPP", "XSRF", "XSS" ]
# https://staticcheck.io/docs/options#http_status_code_whitelist
http-status-code-whitelist: [ "200", "400", "404", "500" ]
tagliatelle:
# check the struck tag name case
case:
# use the struct field name to check the name of the struct tag
use-field-name: true
rules:
# any struct tag type can be used.
# support string case: `camel`, `pascal`, `kebab`, `snake`, `goCamel`, `goPascal`, `goKebab`, `goSnake`, `upper`, `lower`
json: camel
yaml: camel
xml: camel
bson: camel
avro: snake
mapstructure: kebab
testpackage:
# regexp pattern to skip files
skip-regexp: (export|internal)_test\.go
thelper:
# The following configurations enable all checks. It can be omitted because all checks are enabled by default.
# You can enable only required checks deleting unnecessary checks.
test:
first: true
name: true
begin: true
benchmark:
first: true
name: true
begin: true
tb:
first: true
name: true
begin: true
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:
# Select the Go version to target. The default is '1.13'.
go: "1.15"
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
wrapcheck:
# An array of strings that specify substrings of signatures to ignore.
# If this set, it will override the default set of ignored signatures.
# See https://github.com/tomarrell/wrapcheck#configuration for more information.
ignoreSigs:
- .Errorf(
- errors.New(
- errors.Unwrap(
- .Wrap(
- .Wrapf(
- .WithMessage(
- .WithMessagef(
- .WithStack(
ignorePackageGlobs:
- encoding/*
- github.com/pkg/*
wsl:
# See https://github.com/bombsimon/wsl/blob/master/doc/configuration.md for
# documentation of available settings. These are the defaults for
# `golangci-lint`.
allow-assign-and-anything: false
allow-assign-and-call: true
allow-cuddle-declarations: false
allow-multiline-assign: true
allow-separated-leading-comment: false
allow-trailing-comment: false
force-case-trailing-whitespace:
force-err-cuddling: false
force-short-decl-cuddling: false
strict-append: true
# 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:
disable-all: true
enable:
- megacheck
- govet
enable-all: true
disable:
- maligned
- prealloc
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:
# Maximum count of issues with the same text. Set to 0 to disable. Default is 3.
max-same-issues:
# 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
# Fix found issues (if it's supported by the linter)
fix: true
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_*.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
参考资料
golangci-lint 发布页: https://github.com/golangci/golangci-lint/releases
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