From f674c056066251acdc097b43d0aa910cab4beace Mon Sep 17 00:00:00 2001
From: William Kwon <william.kwon@bigcommerce.com>
Date: Sun, 26 May 2019 23:18:12 -0700
Subject: [PATCH] fix: strf-6383 add check for template size for stencil
 bundling

---
 lib/stencil-bundle.js | 23 +++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

diff --git a/lib/stencil-bundle.js b/lib/stencil-bundle.js
index b0eae989..018a40d7 100644
--- a/lib/stencil-bundle.js
+++ b/lib/stencil-bundle.js
@@ -1,6 +1,6 @@
 'use strict';
-
-const MAX_SIZE_BUNDLE = 1048576 * 50; //50MB
+const MEGABYTE = 1048576
+const MAX_SIZE_BUNDLE = MEGABYTE * 50; 
 const PATHS_TO_ZIP = [
     'assets/**/*',
     '!assets/cdn/**',
@@ -308,12 +308,16 @@ function bundleTaskRunner(callback) {
             bundleThemeFiles(archive, this.themePath, this.configuration);
 
             // zip all generated files
-            bundleParsedFiles(archive, taskResults);
+            const failedTemplates = bundleParsedFiles(archive, taskResults);
 
             fileStream.on('close', () => {
                 const stats = Fs.statSync(bundleZipPath);
                 const size = stats['size'];
 
+                if (failedTemplates.length) {
+                    return console.error(`Error: Your bundle failed as templates generated from the files below are greater than or equal to 1 megabyte in size:\n${failedTemplates.join('\n')}`);
+                }
+
                 if (size > MAX_SIZE_BUNDLE) {
                     return console.error(`Error: Your bundle of size ${size} bytes is above the max size of ${MAX_SIZE_BUNDLE} bytes`);
                 }
@@ -354,12 +358,13 @@ function bundleThemeFiles(archive, themePath, configuration) {
  * Archive all generated files (ex. parsed files)
  * @param {Archive} archive
  * @param {Object} taskResults
+ * @returns {Array}
  */
 function bundleParsedFiles(archive, taskResults) {
     const archiveJsonFile = (data, name) => {
         archive.append(JSON.stringify(data), { name });
     }
-
+    const failedTemplates = [];
     for (let task in taskResults) {
         let data = taskResults[task];
         switch(task) {
@@ -373,8 +378,13 @@ function bundleParsedFiles(archive, taskResults) {
         case 'templates':
             // Create the parsed tree files
             for (let filename in data) {
-                let hash = Crypto.createHash('md5').update(filename).digest('hex');
-                archiveJsonFile(data[filename], `parsed/templates/${hash}.json`);
+                const hash = Crypto.createHash('md5').update(filename).digest('hex');
+                const fileData = data[filename];
+                archiveJsonFile(fileData, `parsed/templates/${hash}.json`);
+                // if file size is greater than 1 megabyte push filename to failedTemplates
+                if (JSON.stringify(fileData).length >= MEGABYTE) {
+                    failedTemplates.push(filename);
+                }
             }
             break;
 
@@ -394,6 +404,7 @@ function bundleParsedFiles(archive, taskResults) {
             break;
         }
     }
+    return failedTemplates;
 }
 
 module.exports = Bundle;