From 2a9fe0fa9515e20eac737592834e9fdeeaf809c8 Mon Sep 17 00:00:00 2001
From: Tom Dale <tom@tomdale.net>
Date: Thu, 23 Mar 2017 10:25:23 -0700
Subject: [PATCH] Build @glimmer/interfaces

---
 build/broccoli/build-packages.js | 27 ++++++++++++++++++---------
 1 file changed, 18 insertions(+), 9 deletions(-)

diff --git a/build/broccoli/build-packages.js b/build/broccoli/build-packages.js
index 96be27df87..938a3a3a44 100644
--- a/build/broccoli/build-packages.js
+++ b/build/broccoli/build-packages.js
@@ -31,9 +31,7 @@ function topsortPackages() {
   // that `package.json`.
   let pkgs = glob
     .sync(`${PACKAGES_PATH}/**/package.json`)
-    .map(pkgPath => require(pkgPath))
-    // .filter(pkg => pkg.name === '@glimmer/util')
-    .filter(pkg => pkg.name !== '@glimmer/interfaces');
+    .map(pkgPath => require(pkgPath));
 
   // Get a list of package names discovered in the repo.
   let inRepoDependencies = pkgs.map(pkg => pkg.name);
@@ -77,14 +75,25 @@ function topsortPackages() {
  */
 function treeForPackage(packagePath) {
   let srcTrees = [
-    funnel(packagePath, { exclude: ['test/'] }),
+    funnel(packagePath, { exclude: ['test/**/*'] }),
   ];
 
-  let packageTree = funnel(buildPackage({
-    srcTrees,
-    projectPath: packagePath,
-    tsconfigPath: TSCONFIG_PATH
-  }), { destDir: 'dist' });
+  let packageTree;
+
+  if (fs.existsSync(path.join(packagePath, 'index.d.ts'))) {
+    // @glimmer/interfaces only exports types, so we can copy it verbatim without
+    // any transpilation.
+    packageTree = funnel(packagePath, {
+      destDir: path.join('dist', 'types'),
+      exclude: ['package.json']
+    });
+  } else {
+    packageTree = funnel(buildPackage({
+      srcTrees,
+      projectPath: packagePath,
+      tsconfigPath: TSCONFIG_PATH,
+    }), { destDir: 'dist' });
+  }
 
   let packageJSONTree = treeForPackageJSON(packagePath);