From 31f5fc6c415ed72feb14dc97dcc8e9cbc4dcf735 Mon Sep 17 00:00:00 2001
From: Benjamin <benjamin.a.king@nasa.gov>
Date: Wed, 6 Sep 2017 15:18:43 -0400
Subject: [PATCH] added browserify script #494

---
 package.json   |  8 +++++-
 tasks/build-js | 78 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 85 insertions(+), 1 deletion(-)
 create mode 100644 tasks/build-js

diff --git a/package.json b/package.json
index 4097aaf4a3..b5673a3130 100644
--- a/package.json
+++ b/package.json
@@ -11,12 +11,17 @@
   "scripts": {
     "test": "grunt test lint",
     "start": "node ./bin/www",
-    "preinstall": "node version-check.js"
+    "preinstall": "node version-check.js",
+    "build-js": "node ./tasks/build-js"
   },
   "devDependencies": {
     "autoprefixer": "7.1.1",
     "babel-polyfill": "6.16.0",
+    "babel-preset-es2015": "^6.24.1",
+    "babel-preset-react": "^6.24.1",
+    "babelify": "^7.3.0",
     "bluebird": "3.4.6",
+    "browserify": "^14.4.0",
     "buster": "0.7.12",
     "chromedriver": "2.25.1",
     "express": "4.15.2",
@@ -55,6 +60,7 @@
     "selenium-server-standalone-jar": "3.0.1",
     "stylefmt": "^6.0.0",
     "stylelint": "^8.0.0",
+    "watchify": "^3.9.0",
     "worldview-components": "1.3.3"
   }
 }
diff --git a/tasks/build-js b/tasks/build-js
new file mode 100644
index 0000000000..534d88cb57
--- /dev/null
+++ b/tasks/build-js
@@ -0,0 +1,78 @@
+#!/usr/bin/env node
+// template from https://github.com/petesaia/node-native-task-runner/blob/master/bin/build-js
+
+//const UglifyJS = require('uglify-js');
+const fs = require('fs');
+const browserify = require('browserify');
+const watchify = require('watchify');
+
+const entry = 'wv.main.js';
+const output = './build/js.js';
+const outputMin = './build/js.mins.js';
+
+// override, should set this from an argument: --dev or --prod
+// and default to dev
+process.env.NODE_ENV = 'development';
+
+const b = browserify(entry, {
+  debug: true,
+  sourceMaps: true,
+  cache: {},
+  packageCache: {},
+  plugin: [process.env.NODE_ENV !== 'production' ? watchify : null],
+  basedir: './web/js'
+})
+  .transform('babelify', {
+    plugins: [ ],
+    presets: [
+      'es2015',
+      'react'
+    ]
+  });
+
+function bundle() {
+  const stream = fs.createWriteStream(output);
+
+  const onComplete = (function() {
+    const begin = Date.now();
+
+    return function() {
+      console.log('Build complete in ' + (Date.now() - begin) / 1000 + 'secs');
+    };
+  })();
+
+  b.bundle()
+    .on('error', function(err) {
+      console.error(err);
+      this.emit('end');
+    })
+    .pipe(stream)
+
+  stream.on('finish', function() {
+    if (process.env.NODE_ENV === 'production') {
+      // console.log('Complete, now compressing because production.');
+
+      // const minified = UglifyJS.minify(fs.readFileSync(output, 'utf8'), {
+      //   // warnings: true,
+      //   compress: {
+      //     dead_code: true
+      //   }
+      // });
+
+      // if (minified.error) {
+      //   return console.error('UGLIFY Error:', minified.error);
+      // }
+
+      // fs.writeFileSync(outputMin, minified.code);
+      // onComplete();
+
+    } else {
+      console.log('All done! (dev mode - not compressing)');
+      onComplete();
+    }
+  });
+}
+
+bundle();
+
+b.on('update', bundle);
\ No newline at end of file