1 files changed, 15 insertions, 0 deletions
diff --git a/files/data_io/utils/file_utils.py b/files/data_io/utils/file_utils.py
new file mode 100644
index 0000000..0a1e846
--- /dev/null
+++ b/files/data_io/utils/file_utils.py
@@ -0,0 +1,15 @@
+import os
+
+def ensure_dir(path: str):
+    """Ensure that a directory exists."""
+    if not os.path.exists(path):
+        os.makedirs(path)
+
+def list_files(root: str, suffix: str):
+    """Recursively list files ending with suffix."""
+    matches = []
+    for dirpath, _, filenames in os.walk(root):
+        for f in filenames:
+            if f.endswith(suffix):
+                matches.append(os.path.join(dirpath, f))
+    return matches