From fda683b8743700b8fdc1ff7a4df1ef38b5a1782c Mon Sep 17 00:00:00 2001
From: Charles Lyding <19598772+clydin@users.noreply.github.com>
Date: Tue, 19 Mar 2019 10:21:51 -0400
Subject: [PATCH] build: only generate types for actual JSON schemas

---
 scripts/build-schema.ts | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/scripts/build-schema.ts b/scripts/build-schema.ts
index 3587d0584c..a5d64ae462 100644
--- a/scripts/build-schema.ts
+++ b/scripts/build-schema.ts
@@ -60,9 +60,15 @@ export default async function(
     }
     const content = fs.readFileSync(fileName, 'utf-8');
 
-    const json = JSON.parse(content);
-    if (!json.$schema) {
-      // Skip non-schema files.
+    let json;
+    try {
+      json = JSON.parse(content);
+      if (typeof json.$schema !== 'string' || !json.$schema.startsWith('http://json-schema.org/')) {
+        // Skip non-schema files.
+        continue;
+      }
+    } catch {
+      // malformed or JSON5
       continue;
     }
     const tsContent = await quicktypeRunner.generate(fileName);