From 13c07e6ce9f64b649f43b0e64820545dc4a7793e Mon Sep 17 00:00:00 2001
From: mattpen <matthew.pennington@colorado.edu>
Date: Thu, 14 Mar 2019 13:55:09 -0600
Subject: [PATCH] Added LZMA asset for #746

---
 js/grunt/buildRunnable.js | 18 +++++++++++++++++-
 package.json              |  5 +++--
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/js/grunt/buildRunnable.js b/js/grunt/buildRunnable.js
index 9473fbe6b..f72912970 100644
--- a/js/grunt/buildRunnable.js
+++ b/js/grunt/buildRunnable.js
@@ -16,6 +16,7 @@ const ChipperConstants = require( '../common/ChipperConstants' );
 const ChipperStringUtils = require( '../common/ChipperStringUtils' );
 const copyDirectory = require( './copyDirectory' );
 const copySupplementalPhetioFiles = require( './phet-io/copySupplementalPhetioFiles' );
+const fs = require( 'fs' );
 const generateThumbnails = require( './generateThumbnails' );
 const generateTwitterCard = require( './generateTwitterCard' );
 const getA11yViewHTMLFromTemplate = require( './getA11yViewHTMLFromTemplate' );
@@ -30,6 +31,7 @@ const getTitleStringKey = require( './getTitleStringKey' );
 const grunt = require( 'grunt' );
 const jimp = require( 'jimp' );
 const loadFileAsDataURI = require( '../common/loadFileAsDataURI' );
+const lzma = require( 'lzma-native' ); // eslint-disable-line require-statement-match
 const minify = require( './minify' );
 const nodeHTMLEncoder = require( 'node-html-encoder' ); // eslint-disable-line require-statement-match
 const packageRunnable = require( './packageRunnable' );
@@ -187,13 +189,27 @@ module.exports = async function( repo, minifyOptions, instrument, allHTML, brand
       includeAllLocales: true,
       isDebugBuild: false
     }, commonInitializationOptions ) );
-    grunt.file.write( `${buildDir}/${repo}_all_${brand}.html`, packageRunnable( {
+
+    const allHTMLFilename = `${buildDir}/${repo}_all_${brand}.html`;
+
+    grunt.file.write( allHTMLFilename, packageRunnable( {
       repo: repo,
       stringMap: stringMap,
       htmlHeader: htmlHeader,
       locale: ChipperConstants.FALLBACK_LOCALE,
       scripts: [ initializationScript, splashScript, mipmapsJavaScript, ...productionPreloads, chipperStringsScript, productionJS ]
     } ) );
+
+    try {
+      // Create LZMA compressed asset
+      fs.createReadStream( allHTMLFilename )
+        .pipe( lzma.createCompressor() )
+        .pipe( fs.createWriteStream( `${allHTMLFilename}.xz` ) );
+    }
+    catch ( error ) {
+      grunt.log.error( error );
+      throw new Error( 'lzma compression failed' );
+    }
   }
 
   // Debug build (always included)
diff --git a/package.json b/package.json
index d39a1b280..24295814a 100644
--- a/package.json
+++ b/package.json
@@ -17,16 +17,17 @@
     "jscpd": "^0.6.18",
     "jsdoc": "~3.5.5",
     "lodash": "^4.17.10",
+    "lzma-native": "^4.0.3",
     "md5": "~2",
     "node-html-encoder": "~0.0.2",
     "pngjs": "~0.4.0",
     "qunit": "~2.4.1",
     "request": "^2.87.0",
-    "request-promise-native": "~1.0.5",
+    "request-promise-native": "^1.0.7",
     "requirejs": "~2.3.5",
     "uglify-es": "~3.1.10"
   },
   "eslintConfig": {
     "extends": "../chipper/eslint/sim_eslintrc.js"
   }
-}
\ No newline at end of file
+}