Feat: Copy several files to destination directory (optionally)

Editor/IO/Files/CopyFilesToDirectory.cs

@@ -0,0 +1,46 @@
+using System.IO;
+using System.Threading.Tasks;
+using UnityEditor;
+using UnityEngine;
+
+namespace UniTools.Build
+{
+    [CreateAssetMenu(
+        fileName = nameof(CopyFilesToDirectory),
+        menuName = MenuPaths.IO + nameof(CopyFilesToDirectory)
+    )]
+    public sealed class CopyFilesToDirectory : BuildStep
+    {
+        [SerializeField] private PathProperty m_sourceDirectory = default;
+        [SerializeField] private PathProperty[] m_sourceFiles = default;
+        [SerializeField] private PathProperty m_destinationDirectory = default;
+
+        public override async Task Execute()
+        {
+            var sourceFolder = m_sourceDirectory.ToString();
+            var hasNoSourceFolder = string.IsNullOrEmpty(sourceFolder);
+            var destinationFolder = m_destinationDirectory.ToString();
+
+            if (!hasNoSourceFolder && !Directory.Exists(sourceFolder))
+            {
+                throw new DirectoryNotFoundException($"Source folder: {sourceFolder} does not exist!");
+            }
+            if (!Directory.Exists(destinationFolder))
+            {
+                throw new DirectoryNotFoundException($"Destination folder {destinationFolder} does not exist!");
+            }
+
+            foreach (var sourceFile in m_sourceFiles)
+            {
+                var filePath = sourceFile.ToString();
+                var fileName = Path.GetFileName(filePath);
+                var source = hasNoSourceFolder ? filePath : Path.Combine(sourceFolder, filePath);
+                var destination = Path.Combine(destinationFolder, fileName);
+                FileUtil.DeleteFileOrDirectory(destination);
+                FileUtil.CopyFileOrDirectory(source, destination);
+            }
+
+            await Task.CompletedTask;
+        }
+    }
+}