tools: add JSON schema validation tool

src/tools/json-schema-validate.rb

@@ -0,0 +1,17 @@
+#!/usr/bin/env ruby
+
+require 'json'
+require 'jschema'
+
+fail "Required parameters: <schema> <file to validate>" if ARGV.count != 2
+
+content     = JSON.parse File.read(ARGV[1])
+schema_data = JSON.parse File.read(ARGV[0])
+schema      = JSchema.build(schema_data)
+errors      = schema.validate content
+
+exit 0 if errors.empty?
+
+puts errors.join("\n")
+
+exit 1