add better validation checks (part 1)

This patch adds a script for validating YAML files, and replaces the
existing JSON checks with one largely identical to the YAML check.

This also provides a script that can be installed as a pre-commit hook
that will perform this checks when you commit changes.  You can install
the hook by running tools/pre-commit-hook --install.

Change-Id: Ib4742a9db062362cfa61d669c691151bc1ca376c

1 files changed, 33 insertions, 0 deletions

diff --git a/tools/validate-json.py b/tools/validate-json.py
new file mode 100755
index 000000000..d7e1cd873
--- /dev/null
+++ b/tools/validate-json.py
@@ -0,0 +1,33 @@
+#!/usr/bin/python
+
+import os
+import sys
+import argparse
+import json
+import logging
+
+def parse_args():
+    p = argparse.ArgumentParser()
+    p.add_argument('input', nargs='*')
+    return p.parse_args()
+
+def main():
+    args = parse_args()
+    logging.basicConfig()
+    res = 0
+
+    for filename in args.input:
+        with open(filename) as fd:
+            try:
+                data = json.load(fd)
+            except ValueError as error:
+                res = 1
+                logging.error('%s failed validation: %s',
+                              filename, error)
+
+    sys.exit(res)
+
+if __name__ == '__main__':
+    main()
+
+