From 1e2c80849657030c90aaae5b8568611148227797 Mon Sep 17 00:00:00 2001
From: Daniel Rozenberg <rodaniel@amp.dev>
Date: Tue, 7 Sep 2021 12:32:41 -0400
Subject: [PATCH] =?UTF-8?q?=F0=9F=8F=97=20Parallelize=20`dist`=20steps=20(?=
 =?UTF-8?q?#35943)?=
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---
 build-system/tasks/dist.js | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/build-system/tasks/dist.js b/build-system/tasks/dist.js
index bb5294b4b016..de528f13699c 100644
--- a/build-system/tasks/dist.js
+++ b/build-system/tasks/dist.js
@@ -113,17 +113,18 @@ async function dist() {
   await runPreDistSteps(options);
 
   // These steps use closure compiler. Small ones before large (parallel) ones.
+  const steps = [];
   if (argv.core_runtime_only) {
-    await compileCoreRuntime(options);
+    steps.push(compileCoreRuntime(options));
   } else {
-    await buildExperiments();
-    await buildLoginDone('0.1');
-    await buildWebPushPublisherFiles();
-    await compileAllJs(options);
+    steps.push(buildExperiments());
+    steps.push(buildLoginDone('0.1'));
+    steps.push(buildWebPushPublisherFiles());
+    steps.push(compileAllJs(options));
   }
 
   // This step internally parses the various extension* flags.
-  await buildExtensions(options);
+  steps.push(buildExtensions(options));
 
   // This step is to be run only during a full `amp dist`.
   if (
@@ -132,9 +133,11 @@ async function dist() {
     !argv.extensions_from &&
     !argv.noextensions
   ) {
-    await buildVendorConfigs(options);
+    steps.push(buildVendorConfigs(options));
   }
 
+  await Promise.all(steps);
+
   // This step is required no matter which binaries are built.
   await formatExtractedMessages();