file-util.go: nuova funzione IsNamedPipe()

file-util.go

@@ -23,6 +23,13 @@ func FileSize(filePath string) (size int64) {
 	return
 }
 
+// Return true if filePath exists
+func FileExists(filePath string) bool {
+	_, osErr := os.Stat(filePath)
+	return osErr == nil || osErr == os.ErrExist
+}
+
+// Return true if filePath exists and it is a regular file
 func IsRegularFile(filePath string) bool {
 	if filePath != "" {
 		info, err := os.Stat(filePath)
@@ -48,6 +55,22 @@ func IsSymLink(filePath string) bool {
 	return false
 }
 
+func IsSocket(filePath string) bool {
+	if filePath != "" {
+		info, err := os.Stat(filePath)
+		return (err == nil || errors.Is(err, os.ErrExist)) && (info.Mode()&os.ModeSocket != 0)
+	}
+	return false
+}
+
+func IsNamedPipe(filePath string) bool {
+	if filePath != "" {
+		info, err := os.Stat(filePath)
+		return (err == nil || errors.Is(err, os.ErrExist)) && (info.Mode()&os.ModeNamedPipe != 0)
+	}
+	return false
+}
+
 func IsSymLinkByDirEntry(e os.DirEntry) bool {
 	info, _ := e.Info()
 	return info.Mode()&os.ModeSymlink != 0