dev: use golangci-lint action (#1066)

Author: jirfag

.github/workflows/pr.yml

@@ -1,5 +1,5 @@
 ---
-name: PR build
+name: CI
 on:
   push:
     tags:
@@ -8,7 +8,20 @@ on:
       - master
   pull_request:
 jobs:
+  # We already run the current golangci-lint in tests, but here we test
+  # our GitHub action with the latest stable golangci-lint.
+  golangci-lint:
+    name: golangci-lint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: lint
+        uses: golangci/golangci-lint-action@v0.1.3
+        with:
+          version: v1.26
+          github-token: ${{ secrets.GOLANGCI_LINT_TOKEN }}
   tests-on-windows:
+    needs: golangci-lint # run after golangci-lint action to not produce duplicated errors
     runs-on: windows-latest
     strategy:
       matrix:
@@ -25,6 +38,7 @@ jobs:
         run: make.exe test
         continue-on-error: true
   tests-on-unix:
+    needs: golangci-lint # run after golangci-lint action to not produce duplicated errors
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
@@ -49,6 +63,7 @@ jobs:
       - name: Run tests on Unix-like operating systems
         run: make test
   check_generated:
+    needs: golangci-lint # run after golangci-lint action to not produce duplicated errors
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2

.golangci.example.yml

@@ -23,6 +23,8 @@ run:
   # 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
@@ -35,6 +37,8 @@ run:
   # 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

.golangci.yml

@@ -103,11 +103,17 @@ linters:
     - whitespace
 
   # don't enable:
+  # - asciicheck
   # - gochecknoglobals
   # - gocognit
+  # - godot
   # - godox
+  # - goerr113
   # - maligned
+  # - nestif
   # - prealloc
+  # - testpackage
+  # - wsl
 
 issues:
   # Excluding configuration per-path, per-linter, per-text and per-source

README.md

@@ -1,7 +1,6 @@
 # GolangCI-Lint
 
-[![Build Status](https://travis-ci.com/golangci/golangci-lint.svg?branch=master)](https://travis-ci.com/golangci/golangci-lint)
-[![GolangCI](https://golangci.com/badges/github.com/golangci/golangci-lint.svg)](https://golangci.com)
+![Build Status](https://github.com/golangci/golangci-lint/workflows/CI/badge.svg)
 [![License](https://img.shields.io/github/license/golangci/golangci-lint)](/LICENSE)
 [![Release](https://img.shields.io/github/release/golangci/golangci-lint.svg)](https://github.com/golangci/golangci-lint/releases/latest)
 [![Docker](https://img.shields.io/docker/pulls/golangci/golangci-lint)](https://hub.docker.com/r/golangci/golangci-lint)
@@ -44,6 +43,10 @@ Sponsored by [GolangCI.com](https://golangci.com): SaaS service for running lint
   - [Configuration](#configuration)
     - [Command-Line Options](#command-line-options)
     - [Config File](#config-file)
+  - [Custom Linters](#custom-linters)
+    - [Create a Copy of `golangci-lint` that Can Run with Plugins](#create-a-copy-of-golangci-lint-that-can-run-with-plugins)
+    - [Configure Your Project for Linting](#configure-your-project-for-linting)
+    - [To Create Your Own Custom Linter](#to-create-your-own-custom-linter)
   - [False Positives](#false-positives)
     - [Nolint](#nolint)
   - [FAQ](#faq)
@@ -646,6 +649,8 @@ run:
   # 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
@@ -658,6 +663,8 @@ run:
   # 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
@@ -1104,11 +1111,17 @@ linters:
     - whitespace
 
   # don't enable:
+  # - asciicheck
   # - gochecknoglobals
   # - gocognit
+  # - godot
   # - godox
+  # - goerr113
   # - maligned
+  # - nestif
   # - prealloc
+  # - testpackage
+  # - wsl
 
 issues:
   # Excluding configuration per-path, per-linter, per-text and per-source

README.tmpl.md

@@ -1,7 +1,6 @@
 # GolangCI-Lint
 
-[![Build Status](https://travis-ci.com/golangci/golangci-lint.svg?branch=master)](https://travis-ci.com/golangci/golangci-lint)
-[![GolangCI](https://golangci.com/badges/github.com/golangci/golangci-lint.svg)](https://golangci.com)
+![Build Status](https://github.com/golangci/golangci-lint/workflows/CI/badge.svg)
 [![License](https://img.shields.io/github/license/golangci/golangci-lint)](/LICENSE)
 [![Release](https://img.shields.io/github/release/golangci/golangci-lint.svg)](https://github.com/golangci/golangci-lint/releases/latest)
 [![Docker](https://img.shields.io/docker/pulls/golangci/golangci-lint)](https://hub.docker.com/r/golangci/golangci-lint)
@@ -44,6 +43,10 @@ Sponsored by [GolangCI.com](https://golangci.com): SaaS service for running lint
   - [Configuration](#configuration)
     - [Command-Line Options](#command-line-options)
     - [Config File](#config-file)
+  - [Custom Linters](#custom-linters)
+    - [Create a Copy of `golangci-lint` that Can Run with Plugins](#create-a-copy-of-golangci-lint-that-can-run-with-plugins)
+    - [Configure Your Project for Linting](#configure-your-project-for-linting)
+    - [To Create Your Own Custom Linter](#to-create-your-own-custom-linter)
   - [False Positives](#false-positives)
     - [Nolint](#nolint)
   - [FAQ](#faq)

go.sum

@@ -266,6 +266,7 @@ github.com/spf13/viper v1.3.2/go.mod h1:ZiWeW+zYFKm7srdB9IoDzzZXaJaI5eL9QjNiN/DM
 github.com/spf13/viper v1.6.1 h1:VPZzIkznI1YhVMRi6vNFLHSwhnhReBfgTxIPccpfdZk=
 github.com/spf13/viper v1.6.1/go.mod h1:t3iDnF5Jlj76alVNuyFBk5oUMCvsrkbvZK0WQdfDi5k=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/objx v0.1.1 h1:2vfRuCMp5sSVIDSqO8oNnWJq7mPa6KVP3iPIwFBuy8A=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.2.0 h1:Hbg2NidpLE8veEBkEZTL3CvlkUIVzuU9jDplZO54c48=
 github.com/stretchr/objx v0.2.0/go.mod h1:qt09Ya8vawLte6SNmTgCsAVtYtaKzEcn8ATUoHMkEqE=

pkg/result/processors/skip_dirs.go

@@ -31,6 +31,7 @@ const goFileSuffix = ".go"
 func NewSkipDirs(patterns []string, log logutils.Log, runArgs []string) (*SkipDirs, error) {
 	var patternsRe []*regexp.Regexp
 	for _, p := range patterns {
+		p = normalizePathInRegex(p)
 		patternRe, err := regexp.Compile(p)
 		if err != nil {
 			return nil, errors.Wrapf(err, "can't compile regexp %q", p)

pkg/result/processors/skip_files.go

@@ -16,6 +16,7 @@ var _ Processor = SkipFiles{}
 func NewSkipFiles(patterns []string) (*SkipFiles, error) {
 	var patternsRe []*regexp.Regexp
 	for _, p := range patterns {
+		p = normalizePathInRegex(p)
 		patternRe, err := regexp.Compile(p)
 		if err != nil {
 			return nil, fmt.Errorf("can't compile regexp %q: %s", p, err)

pkg/result/processors/utils.go

@@ -1,6 +1,10 @@
 package processors
 
 import (
+	"path/filepath"
+	"regexp"
+	"strings"
+
 	"github.com/pkg/errors"
 
 	"github.com/golangci/golangci-lint/pkg/result"
@@ -44,3 +48,15 @@ func transformIssues(issues []result.Issue, transform func(i *result.Issue) *res
 
 	return retIssues
 }
+
+var separatorToReplace = regexp.QuoteMeta(string(filepath.Separator))
+
+func normalizePathInRegex(path string) string {
+	if filepath.Separator == '/' {
+		return path
+	}
+
+	// This replacing should be safe because "/" are disallowed in Windows
+	// https://docs.microsoft.com/ru-ru/windows/win32/fileio/naming-a-file
+	return strings.ReplaceAll(path, "/", separatorToReplace)
+}