feat: v2 (#599)

Read https://github.com/filebrowser/filebrowser/pull/575.

fileutils/dir.go

@@ -0,0 +1,62 @@
+package fileutils
+
+import (
+	"errors"
+
+	"github.com/spf13/afero"
+)
+
+// CopyDir copies a directory from source to dest and all
+// of its sub-directories. It doesn't stop if it finds an error
+// during the copy. Returns an error if any.
+func CopyDir(fs afero.Fs, source string, dest string) error {
+	// Get properties of source.
+	srcinfo, err := fs.Stat(source)
+	if err != nil {
+		return err
+	}
+
+	// Create the destination directory.
+	err = fs.MkdirAll(dest, srcinfo.Mode())
+	if err != nil {
+		return err
+	}
+
+	dir, _ := fs.Open(source)
+	obs, err := dir.Readdir(-1)
+	if err != nil {
+		return err
+	}
+
+	var errs []error
+
+	for _, obj := range obs {
+		fsource := source + "/" + obj.Name()
+		fdest := dest + "/" + obj.Name()
+
+		if obj.IsDir() {
+			// Create sub-directories, recursively.
+			err = CopyDir(fs, fsource, fdest)
+			if err != nil {
+				errs = append(errs, err)
+			}
+		} else {
+			// Perform the file copy.
+			err = CopyFile(fs, fsource, fdest)
+			if err != nil {
+				errs = append(errs, err)
+			}
+		}
+	}
+
+	var errString string
+	for _, err := range errs {
+		errString += err.Error() + "\n"
+	}
+
+	if errString != "" {
+		return errors.New(errString)
+	}
+
+	return nil
+}