feat quickly

Tools/quickly/backend/helpers.go

@@ -0,0 +1,56 @@
+package backend
+
+import (
+	"os"
+	"path/filepath"
+)
+
+func copyDir(src string, dst string) error {
+	srcInfo, err := os.Stat(src)
+	if err != nil {
+		return err
+	}
+
+	if err := os.MkdirAll(dst, srcInfo.Mode()); err != nil {
+		return err
+	}
+
+	entries, err := os.ReadDir(src)
+	if err != nil {
+		return err
+	}
+
+	for _, entry := range entries {
+		srcPath := filepath.Join(src, entry.Name())
+		dstPath := filepath.Join(dst, entry.Name())
+
+		if entry.IsDir() {
+			if err := copyDir(srcPath, dstPath); err != nil {
+				return err
+			}
+		} else {
+			if err := copyFile(srcPath, dstPath); err != nil {
+				return err
+			}
+		}
+	}
+
+	return nil
+}
+
+func copyFile(src string, dst string) error {
+	source, err := os.Open(src)
+	if err != nil {
+		return err
+	}
+	defer source.Close()
+
+	destination, err := os.Create(dst)
+	if err != nil {
+		return err
+	}
+	defer destination.Close()
+
+	_, err = destination.ReadFrom(source)
+	return err
+}