From 2ababdf66335ccf2247b6643ea85bb5142dfda7e Mon Sep 17 00:00:00 2001
From: Alex Eagle <alexeagle@google.com>
Date: Thu, 12 Sep 2019 07:13:34 -0700
Subject: [PATCH] fix(rollup): npm requires an index.js file

---
 packages/rollup/src/BUILD.bazel | 1 +
 packages/rollup/src/index.js    | 9 +++++++++
 2 files changed, 10 insertions(+)
 create mode 100644 packages/rollup/src/index.js

diff --git a/packages/rollup/src/BUILD.bazel b/packages/rollup/src/BUILD.bazel
index 708531e0f9..b77e180631 100644
--- a/packages/rollup/src/BUILD.bazel
+++ b/packages/rollup/src/BUILD.bazel
@@ -33,6 +33,7 @@ filegroup(
     srcs = [
         "BUILD.bazel",
         "index.bzl",
+        "index.js",
         "package.json",
         "rollup.config.js",
         "rollup_bundle.bzl",
diff --git a/packages/rollup/src/index.js b/packages/rollup/src/index.js
new file mode 100644
index 0000000000..290e27c4d3
--- /dev/null
+++ b/packages/rollup/src/index.js
@@ -0,0 +1,9 @@
+// npm install throws if there is no JS in the package
+// npm ERR! path /home/alexeagle/Projects/angular/node_modules/@bazel/rollup/index.js
+// npm ERR! code ENOENT
+// npm ERR! errno -2
+// npm ERR! syscall chmod
+// npm ERR! enoent ENOENT: no such file or directory, chmod
+// '/home/alexeagle/Projects/angular/node_modules/@bazel/rollup/index.js' npm ERR! enoent This is
+// related to npm not being able to find a file. npm ERR! enoent
+throw new Error('@bazel/rollup package has no executable JS code');