1 files changed, 28 insertions, 4 deletions
diff --git a/scripts/check-config b/scripts/check-config
index 3949869b..d2236619 100755
--- a/scripts/check-config
+++ b/scripts/check-config
@@ -1,14 +1,38 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
+#
+# Copyright (C) 2015 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# File: check-config
+# Purpose:
+#   Checks if the build config file (build/build-config.json) exists.
+#   This is to prevent accidental execution of plumbing make targets
+#   from going too far and failing with confusing errors.
+
 
 import sys
-import os
+import json
 
 import defaults
 
 
 print("Checking build configuration")
 
-if not os.path.exists(defaults.BUILD_CONFIG):
-    print("Build config does not exist")
+try:
+    with open(defaults.BUILD_CONFIG, 'r') as f:
+        build_config = json.load(f)
+except:
+    print("Build config does not exist or is not a valid JSON file")
     print("Please run the ./configure script and try again")
     sys.exit(1)