1 files changed, 37 insertions, 0 deletions
diff --git a/taskcluster/taskgraph/util/yaml.py b/taskcluster/taskgraph/util/yaml.py
new file mode 100644
index 0000000000..9f1015c541
--- /dev/null
+++ b/taskcluster/taskgraph/util/yaml.py
@@ -0,0 +1,37 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+from __future__ import absolute_import, print_function, unicode_literals
+
+import os
+
+from yaml.loader import SafeLoader
+
+
+class UnicodeLoader(SafeLoader):
+    def construct_yaml_str(self, node):
+        return self.construct_scalar(node)
+
+
+UnicodeLoader.add_constructor("tag:yaml.org,2002:str", UnicodeLoader.construct_yaml_str)
+
+
+def load_stream(stream):
+    """
+    Parse the first YAML document in a stream
+    and produce the corresponding Python object.
+    """
+    loader = UnicodeLoader(stream)
+    try:
+        return loader.get_single_data()
+    finally:
+        loader.dispose()
+
+
+def load_yaml(*parts):
+    """Convenience function to load a YAML file in the given path.  This is
+    useful for loading kind configuration files from the kind path."""
+    filename = os.path.join(*parts)
+    with open(filename, "rb") as f:
+        return load_stream(f)