scripts: add yaml-normalize.py

scripts/yaml-normalize.py

@@ -0,0 +1,22 @@
+#!/usr/bin/python3
+
+# Run the input file through ruamel yaml to obtain a more consistent result.
+
+import argparse
+
+from ruamel.yaml import YAML
+
+
+parser = argparse.ArgumentParser()
+parser.add_argument('infile', help='yaml file to normalize')
+args = parser.parse_args()
+
+yaml = YAML()
+yaml.default_flow_style = False
+yaml.pure = True
+yaml.indent(mapping=2, sequence=2, offset=2)
+
+with open(args.infile, 'r') as fp:
+    data = yaml.load(fp)
+with open(args.infile, 'w') as fp:
+    yaml.dump(data, fp)