dev: improve tests on Windows (#3211)

pkg/golinters/depguard.go

@@ -2,6 +2,8 @@ package golinters
 
 import (
 	"fmt"
+	"path/filepath"
+	"regexp"
 	"strings"
 	"sync"
 
@@ -104,16 +106,31 @@ func (d depGuard) run(pass *analysis.Pass) ([]goanalysis.Issue, error) {
 	return resIssues, nil
 }
 
+var separatorToReplace = regexp.QuoteMeta(string(filepath.Separator))
+
+// normalizePathInRegex normalizes path in regular expressions.
+// noop on Unix.
+// This replacing should be safe because "/" are disallowed in Windows
+// https://docs.microsoft.com/windows/win32/fileio/naming-a-file
+func normalizePathInRegex(path string) string {
+	return strings.ReplaceAll(path, "/", separatorToReplace)
+}
+
 type guardian struct {
 	*depguard.Depguard
 	pkgsWithErrorMessage map[string]string
 }
 
 func newGuardian(settings *config.DepGuardSettings) (*guardian, error) {
+	var ignoreFileRules []string
+	for _, rule := range settings.IgnoreFileRules {
+		ignoreFileRules = append(ignoreFileRules, normalizePathInRegex(rule))
+	}
+
 	dg := &depguard.Depguard{
 		Packages:        settings.Packages,
 		IncludeGoRoot:   settings.IncludeGoRoot,
-		IgnoreFileRules: settings.IgnoreFileRules,
+		IgnoreFileRules: ignoreFileRules,
 	}
 
 	var err error

pkg/result/processors/fixer.go

@@ -10,6 +10,7 @@ import (
 
 	"github.com/pkg/errors"
 
+	"github.com/golangci/golangci-lint/internal/robustio"
 	"github.com/golangci/golangci-lint/pkg/config"
 	"github.com/golangci/golangci-lint/pkg/fsutils"
 	"github.com/golangci/golangci-lint/pkg/logutils"
@@ -104,13 +105,13 @@ func (f Fixer) fixIssuesInFile(filePath string, issues []result.Issue) error {
 
 	if err = f.writeFixedFile(origFileLines, issues, tmpOutFile); err != nil {
 		tmpOutFile.Close()
-		os.Remove(tmpOutFile.Name())
+		_ = robustio.RemoveAll(tmpOutFile.Name())
 		return err
 	}
 
 	tmpOutFile.Close()
-	if err = os.Rename(tmpOutFile.Name(), filePath); err != nil {
+	if err = robustio.Rename(tmpOutFile.Name(), filePath); err != nil {
-		os.Remove(tmpOutFile.Name())
+		_ = robustio.RemoveAll(tmpOutFile.Name())
 		return errors.Wrapf(err, "failed to rename %s -> %s", tmpOutFile.Name(), filePath)
 	}
 

test/testdata/depguard_ignore_file_rules.go

@@ -1,11 +1,9 @@
-//go:build !windows
-
 //golangcitest:args -Edepguard
 //golangcitest:config_path testdata/configs/depguard_ignore_file_rules.yml
 //golangcitest:expected_exitcode 0
 package testdata
 
-// NOTE - No lint errors becuase this file is ignored
+// NOTE - No lint errors because this file is ignored
 import (
 	"compress/gzip"
 	"log"