diff --git a/fs/file.go b/fs/file.go
index c5d80cc..5000acc 100644
--- a/fs/file.go
+++ b/fs/file.go
@@ -8,3 +8,17 @@ func Exists(path string) bool {
 	_, err := os.Stat(path)
 	return !os.IsNotExist(err)
 }
+
+func TmpFile(name string, contents []byte) (string, error) {
+	f, err := os.CreateTemp("", name)
+	if err != nil {
+		return "", err
+	}
+	defer f.Close()
+
+	if _, err := f.Write(contents); err != nil {
+		return "", err
+	}
+
+	return f.Name(), nil
+}