Set up babel transpiler

Author: Chris Clark

.gitignore

@@ -17,7 +17,7 @@
 
 # Ignore object files.
 *.o
-build/*.js
+build/
 tags
 bin/rippled
 Debug/*.*

.npmignore

@@ -1,2 +1,4 @@
 lib-cov
 coverage.html
+src
+dist/bower

.travis.yml

@@ -1,9 +1,9 @@
 language: node_js
 node_js:
-  - "0.10"
+  - "0.12"
 before_script:
   - npm install -g eslint
-  - curl 'https://raw.githubusercontent.com/ripple/javascript-style-guide/master/eslintrc' > ./eslintrc
+  - curl 'https://raw.githubusercontent.com/ripple/javascript-style-guide/es6/eslintrc' > ./eslintrc
   - eslint --reset -c ./eslintrc $(git --no-pager diff --name-only -M100% --diff-filter=AM --relative $(git merge-base FETCH_HEAD origin/HEAD) FETCH_HEAD | grep "\.js$")
 script: MOCHA_REPORTER=tap npm test --coverage
 after_success:

Gulpfile.js

@@ -1,4 +1,7 @@
+/* eslint-disable no-var, no-param-reassign */
+/* these eslint rules are disabled because gulp does not support babel yet */
 'use strict';
+var _ = require('lodash');
 var gulp = require('gulp');
 var gutil = require('gulp-util');
 var watch = require('gulp-watch');
@@ -15,20 +18,33 @@ var argv = require('yargs').argv;
 
 var pkg = require('./package.json');
 
-function logPluginError(error) {
-  gutil.log(error.toString());
-}
-
-gulp.task('build', function(callback) {
-  webpack({
+function webpackConfig(extension, overrides) {
+  overrides = overrides || {};
+  var defaults = {
     cache: true,
     entry: './src/index.js',
     output: {
       library: 'ripple',
       path: './build/',
-      filename: ['ripple-', '.js'].join(pkg.version)
+      filename: ['ripple-', extension].join(pkg.version)
+    },
+    module: {
+      loaders: [{
+        test: /\.js$/,
+        exclude: /node_modules/,
+        loader: 'babel-loader?optional=runtime'
+      }]
     }
-  }, callback);
+  };
+  return _.assign({}, defaults, overrides);
+}
+
+function logPluginError(error) {
+  gutil.log(error.toString());
+}
+
+gulp.task('build', function(callback) {
+  webpack(webpackConfig('.js'), callback);
 });
 
 gulp.task('build-min', ['build'], function() {
@@ -39,17 +55,8 @@ gulp.task('build-min', ['build'], function() {
 });
 
 gulp.task('build-debug', function(callback) {
-  webpack({
-    cache: true,
-    entry: './src/index.js',
-    output: {
-      library: 'ripple',
-      path: './build/',
-      filename: ['ripple-', '-debug.js'].join(pkg.version)
-    },
-    debug: true,
-    devtool: 'eval'
-  }, callback);
+  var configOverrides = {debug: true, devtool: 'eval'};
+  webpack(webpackConfig('-debug.js', configOverrides), callback);
 });
 
 /**
@@ -64,51 +71,44 @@ function buildUseError(cons) {
 }
 
 gulp.task('build-core', function(callback) {
-  webpack({
-    entry: [
-      './src/remote.js'
-    ],
-    externals: [
-      {
-        './transaction': buildUseError('Transaction'),
-        './orderbook': buildUseError('OrderBook'),
-        './account': buildUseError('Account'),
-        './serializedobject': buildUseError('SerializedObject')
-      }
-    ],
-    output: {
-      library: 'ripple',
-      path: './build/',
-      filename: ['ripple-', '-core.js'].join(pkg.version)
-    },
+  var configOverrides = {
+    cache: false,
+    entry: './src/remote.js',
+    externals: [{
+      './transaction': buildUseError('Transaction'),
+      './orderbook': buildUseError('OrderBook'),
+      './account': buildUseError('Account'),
+      './serializedobject': buildUseError('SerializedObject')
+    }],
     plugins: [
       new webpack.optimize.UglifyJsPlugin()
     ]
-  }, callback);
+  };
+  webpack(webpackConfig('-core.js', configOverrides), callback);
 });
 
 gulp.task('bower-build', ['build'], function() {
   return gulp.src(['./build/ripple-', '.js'].join(pkg.version))
   .pipe(rename('ripple.js'))
-  .pipe(gulp.dest('./dist/'));
+  .pipe(gulp.dest('./dist/bower'));
 });
 
 gulp.task('bower-build-min', ['build-min'], function() {
   return gulp.src(['./build/ripple-', '-min.js'].join(pkg.version))
   .pipe(rename('ripple-min.js'))
-  .pipe(gulp.dest('./dist/'));
+  .pipe(gulp.dest('./dist/bower'));
 });
 
 gulp.task('bower-build-debug', ['build-debug'], function() {
   return gulp.src(['./build/ripple-', '-debug.js'].join(pkg.version))
   .pipe(rename('ripple-debug.js'))
-  .pipe(gulp.dest('./dist/'));
+  .pipe(gulp.dest('./dist/bower'));
 });
 
 gulp.task('bower-version', function() {
-  gulp.src('./dist/bower.json')
+  gulp.src('./dist/bower/bower.json')
   .pipe(bump({version: pkg.version}))
-  .pipe(gulp.dest('./dist/'));
+  .pipe(gulp.dest('./dist/bower'));
 });
 
 gulp.task('bower', ['bower-build', 'bower-build-min', 'bower-build-debug',

npm-shrinkwrap.json

@@ -3,19 +3,19 @@
   "version": "0.12.5-rc2",
   "description": "A JavaScript API for interacting with Ripple in Node.js and the browser",
   "files": [
-    "src/js/*",
+    "dist/npm/*",
     "bin/*",
     "build/*",
     "test/*",
-    "Makefile",
     "Gulpfile.js"
   ],
-  "main": "src/",
+  "main": "dist/npm/",
   "directories": {
     "test": "test"
   },
   "dependencies": {
     "async": "~0.9.0",
+    "babel-runtime": "^5.3.2",
     "bignumber.js": "^2.0.3",
     "extend": "~1.2.1",
     "lodash": "^3.1.0",
@@ -26,6 +26,9 @@
   },
   "devDependencies": {
     "assert-diff": "^1.0.1",
+    "babel": "^5.3.3",
+    "babel-core": "^5.3.2",
+    "babel-loader": "^5.0.0",
     "coveralls": "~2.10.0",
     "eslint": "^0.18.0",
     "gulp": "~3.8.10",
@@ -48,10 +51,12 @@
   },
   "scripts": {
     "build": "gulp",
+    "compile": "babel --optional runtime -d dist/npm/ src/",
+    "prepublish": "npm run compile",
     "postinstall": "cd node_modules/sjcl; ./configure --with-all --compress=none; make",
     "test": "istanbul test _mocha",
     "coveralls": "cat ./coverage/lcov.info | coveralls",
-    "lint": "if ! [ -f eslintrc ]; then curl -o eslintrc 'https://raw.githubusercontent.com/ripple/javascript-style-guide/master/eslintrc'; fi; eslint --reset -c eslintrc src/*.js",
+    "lint": "if ! [ -f eslintrc ]; then curl -o eslintrc 'https://raw.githubusercontent.com/ripple/javascript-style-guide/es6/eslintrc'; fi; eslint --reset -c eslintrc src/*.js",
     "perf": "./scripts/perf_test.sh"
   },
   "repository": {

package.json

@@ -8,4 +8,4 @@ then
   mkdir -p "$DIR/cache"
   curl -L "$URL" > "$DEST"
 fi
-time node "$DIR/verify_ledger_json.js" "$DEST"
+npm run compile && time node "$DIR/verify_ledger_json.js" "$DEST"

scripts/perf_test.sh

@@ -17,15 +17,15 @@ echo "publish to npm"
 npm publish
 exit_on_error
 
-rm -rf dist
+rm -rf dist/bower
 echo ""
 echo "publish to bower"
 
-git clone git@github.com:ripple/bower-ripple.git dist
+git clone git@github.com:ripple/bower-ripple.git dist/bower
 gulp bower
 exit_on_error
 
-cd dist
+cd dist/bower
 version=$(cat bower.json | grep -Eo '([0-9]\.?)+(-rc[0-9])?')
 echo "version: $version"
 git add ripple.js ripple-debug.js ripple-min.js bower.json
@@ -40,4 +40,4 @@ exit_on_error
 git push origin master
 git push --tags origin master
 
-cd ..
+cd ..

scripts/publish

@@ -17,15 +17,15 @@ echo "publish rc to npm"
 npm publish --tag beta
 exit_on_error
 
-rm -rf dist
+rm -rf dist/bower
 echo ""
 echo "publish to bower"
 
-git clone git@github.com:ripple/bower-ripple.git dist
+git clone git@github.com:ripple/bower-ripple.git dist/bower
 gulp bower
 exit_on_error
 
-cd dist
+cd dist/bower
 version=$(cat bower.json | grep -Eo '([0-9]\.?)+(-rc[0-9])?')
 echo "version: $version"
 git add ripple.js ripple-debug.js ripple-min.js bower.json
@@ -40,4 +40,4 @@ exit_on_error
 git push origin master
 git push --tags origin master
 
-cd ..
+cd ..

scripts/publish_rc

@@ -1,12 +1,12 @@
-rm -rf dist
-git clone git@github.com:ripple/bower-ripple.git dist
+rm -rf dist/bower
+git clone git@github.com:ripple/bower-ripple.git dist/bower
 gulp bower
-cd dist
+cd dist/bower
 version=$(cat bower.json | grep -Eo '([0-9]\.?)+(-rc[0-9])?')
 echo "version: $version"
 git add ripple.js ripple-debug.js ripple-min.js bower.json
 git commit -m "[TASK] add v$version"
 git tag "v$version"
 git push origin master
 git push --tags origin master
-cd ..
+cd ..

scripts/publish_to_bower

@@ -1,8 +1,8 @@
 'use strict';
 
 var fs = require('fs');
-var Amount = require('../src/js/ripple').Amount;
-var Ledger = require('../src/js/ripple/ledger').Ledger;
+var Amount = require('../dist/npm').Amount;
+var Ledger = require('../dist/npm/ledger').Ledger;
 
 function parse_options(from, flags) {
   var argv = from.slice(),

scripts/verify_ledger_json.js

@@ -542,7 +542,7 @@ Request.prototype.addStream = function(stream, values) {
         break;
     }
   } else if (arguments.length > 1) {
-    for (arg in arguments) {
+    for (var arg in arguments) {
       this.addStream(arguments[arg]);
     }
     return;

src/request.js

@@ -1150,7 +1150,7 @@ describe('Amount', function() {
       var demAmount = Amount.from_json('10/0158415500000000C1F76FF6ECB0BAC600000000/rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh');
       assert.strictEqual(demAmount.to_text_full(), '10/XAU (-0.5%pa)/rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh');
       demAmount = demAmount.applyInterest(459990264);
-      assert.strictEqual(demAmount.to_text_full(), '9.294949401870435/XAU (-0.5%pa)/rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh');
+      assert.strictEqual(demAmount.to_text_full(), '9.294949401870436/XAU (-0.5%pa)/rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh');
 
     });
     it('from_json apply interest XAU', function() {
@@ -1168,7 +1168,7 @@ describe('Amount', function() {
       var demAmount = Amount.from_json('10/0158415500000000C1F76FF6ECB0BAC600000000/rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh');
       assert.strictEqual(demAmount.to_human_full(), '10/XAU (-0.5%pa)/rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh');
       demAmount = demAmount.applyInterest(459990264);
-      assert.strictEqual(demAmount.to_human_full(), '9.294949401870435/XAU (-0.5%pa)/rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh');
+      assert.strictEqual(demAmount.to_human_full(), '9.294949401870436/XAU (-0.5%pa)/rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh');
 
     });
     it('from_json apply interest XAU human', function() {

test/amount-test.js

@@ -272,7 +272,9 @@ describe('Currency', function() {
       assert.equal(0.995, precision(cur.get_interest_at(new Date(timeUtil.fromRipple(443845330 + 31536000))), 14));
 
       // After one demurrage period, 1/e should have occurred
-      assert.equal(1/Math.E, cur.get_interest_at(443845330 + 6291418827.05));
+      var epsilon = 1e-14;
+      assert(Math.abs(
+        1/Math.E - cur.get_interest_at(443845330 + 6291418827.05)) < epsilon);
 
       // One year before start, it should be (roughly) 0.5% higher.
       assert.equal(1.005, precision(cur.get_interest_at(443845330 - 31536000), 4));

test/currency-test.js

@@ -7,7 +7,7 @@ var Ledger = require('ripple-lib').Ledger;
 * @param ledger_index {Number}
 * Expects a corresponding ledger dump in $repo/test/fixtures/ folder
 */
-create_ledger_test = function (ledger_index) {
+var create_ledger_test = function (ledger_index) {
   describe(String(ledger_index), function() {
 
     var path = __dirname + '/fixtures/ledger-full-'+ledger_index+'.json';

test/ledger-test.js

@@ -1 +1 @@
---reporter spec --timeout 10000 --slow 500
+--reporter spec --timeout 10000 --slow 500 --compilers js:babel/register

test/mocha.opts

@@ -510,7 +510,7 @@ describe('Request', function() {
 
   it('Timeout', function(done) {
     var server = makeServer('wss://localhost:5006');
-    var successEmited = false;
+    var successEmitted = false;
 
     server._request = function(req) {
       assert(req instanceof Request);
@@ -542,7 +542,7 @@ describe('Request', function() {
 
   it('Timeout - satisfied', function(done) {
     var server = makeServer('wss://localhost:5006');
-    var successEmited = false;
+    var successEmitted = false;
 
     server._request = function(req) {
       assert(req instanceof Request);