docs: add comments

pkg/result/processors/path_unix.go

@@ -2,6 +2,7 @@
 
 package processors
 
+// normalizePathInRegex it's a noop function on Unix.
 func normalizePathInRegex(path string) string {
 	return path
 }

pkg/result/processors/path_windows.go

@@ -10,12 +10,10 @@ import (
 
 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 {
-	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)
 }

test/testshared/runner.go

@@ -297,7 +297,7 @@ func (r *RunnerResult) ExpectExitCode(possibleCodes ...int) *RunnerResult {
 func (r *RunnerResult) ExpectOutputRegexp(s string) *RunnerResult {
 	r.tb.Helper()
 
-	assert.Regexp(r.tb, normalizeFilePathInRegex(s), r.output, "exit code is %d", r.exitCode)
+	assert.Regexp(r.tb, normalizePathInRegex(s), r.output, "exit code is %d", r.exitCode)
 	return r
 }
 

test/testshared/runner_unix.go

@@ -7,25 +7,30 @@ import (
 	"testing"
 )
 
+// SkipOnWindows it's a noop function on Unix.
 func SkipOnWindows(_ testing.TB) {}
 
+// NormalizeFilePathInJSON it's a noop function on Unix.
 func NormalizeFilePathInJSON(in string) string {
 	return in
 }
 
-// NormalizeFileInString normalizes in quoted string.
+// NormalizeFileInString it's a noop function on Unix.
 func NormalizeFileInString(in string) string {
 	return in
 }
 
+// defaultBinaryName returns the path to the default binary.
 func defaultBinaryName() string {
 	return filepath.Join("..", "golangci-lint")
 }
 
+// normalizeFilePath it's a noop function on Unix.
 func normalizeFilePath(in string) string {
 	return in
 }
 
-func normalizeFilePathInRegex(path string) string {
+// normalizePathInRegex it's a noop function on Unix.
+func normalizePathInRegex(path string) string {
 	return path
 }

test/testshared/runner_windows.go

@@ -9,10 +9,12 @@ import (
 	"testing"
 )
 
+// SkipOnWindows skip test on Windows.
 func SkipOnWindows(tb testing.TB) {
 	tb.Skip("not supported on Windows")
 }
 
+// NormalizeFilePathInJSON find Go file path and replace `/` with `\\\\`.
 func NormalizeFilePathInJSON(in string) string {
 	exp := regexp.MustCompile(`(?:^|\b)[\w-/.]+\.go`)
 
@@ -21,15 +23,17 @@ func NormalizeFilePathInJSON(in string) string {
 	})
 }
 
-func defaultBinaryName() string {
-	return filepath.Join("..", "golangci-lint.exe")
-}
-
-// NormalizeFileInString normalizes in quoted string, ie. `\\\\`.
+// NormalizeFileInString normalizes in quoted string, ie. replace `\\` with `\\\\`.
 func NormalizeFileInString(in string) string {
 	return strings.ReplaceAll(filepath.FromSlash(in), "\\", "\\\\")
 }
 
+// defaultBinaryName returns the path to the default binary.
+func defaultBinaryName() string {
+	return filepath.Join("..", "golangci-lint.exe")
+}
+
+// normalizeFilePath find Go file path and replace `/` with `\\`.
 func normalizeFilePath(in string) string {
 	exp := regexp.MustCompile(`(?:^|\b)[\w-/.]+\.go`)
 
@@ -38,9 +42,10 @@ func normalizeFilePath(in string) string {
 	})
 }
 
-// normalizeFilePathInRegex normalizes path in regular expressions.
-func normalizeFilePathInRegex(path string) string {
-	// This replacing should be safe because "/" are disallowed in Windows
-	// https://docs.microsoft.com/windows/win32/fileio/naming-a-file
+// normalizePathInRegex normalizes path in regular expressions.
+// Replace all `/` with `\\`.
+// 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, "/", regexp.QuoteMeta(string(filepath.Separator)))
 }