Add script for checking whether data files have valid JSON syntax

scripts/check_data.py

@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+
+import sys
+import json
+from glob import glob
+from os.path import relpath, abspath, dirname
+from pathlib import Path
+
+BASE_DIR = str(Path(dirname(abspath(__file__))).parent)
+
+def get_json_files(base):
+  '''Returns a list of all JSON files in the /data/ directory'''
+  files = glob(f'{base}/data/**/*.json', recursive=True)
+  files.sort()
+  return files
+
+def read_json_file(file):
+  '''Reads a single JSON and returns a dict of its contents'''
+  with open(file) as json_file:
+    return json.load(json_file)
+
+def print_json_error(file, err):
+  '''Outputs error status'''
+  print(f'{file}: {err}')
+
+def main(base):
+  '''Runs a check on all the project's JSON files to see if they have valid syntax'''
+  files = get_json_files(base)
+  errors = False
+
+  for file in files:
+    fpath = relpath(file, base)
+    try:
+      read_json_file(file)
+    except json.decoder.JSONDecodeError as err:
+      print_json_error(fpath, err)
+      errors = True
+    except:
+      print_json_error(fpath, 'Unknown error')
+      errors = True
+  
+  if errors:
+    sys.exit(1)
+
+if __name__== "__main__":
+  main(BASE_DIR)