From c0f61dcb839895d0ac7d35a6814dd0b122d43cdf Mon Sep 17 00:00:00 2001
From: Hans <hans@hansl.ca>
Date: Mon, 20 Aug 2018 10:39:20 -0700
Subject: [PATCH] build: throw an exception when a package is not found in
 monorepo

---
 lib/packages.ts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/packages.ts b/lib/packages.ts
index 268ced9e45..d418943173 100644
--- a/lib/packages.ts
+++ b/lib/packages.ts
@@ -190,6 +190,12 @@ export const packages: PackageMap =
         // Only build the entry if there's a package name.
         return packages;
       }
+      if (!(name in monorepoPackages)) {
+        throw new Error(
+          `Package ${name} found in ${JSON.stringify(pkg.root)}, not found in .monorepo.json.`,
+        );
+      }
+
       const bin: {[name: string]: string} = {};
       Object.keys(packageJson['bin'] || {}).forEach(binName => {
         let p = path.resolve(pkg.root, packageJson['bin'][binName]);