Lambda Toolkit

Jakefile

/*eslint quotes: [0] */
/*global desc, task, watchTask, complete, jake */

var assert = require('assert');
assert(process.env.NODE_ENV, 'NODE_ENV must be set');

var EXEC_OPTS = { printStdout: true, printStderr: true };

desc('Build the source with webpack');
task('build', { async: true }, function () {
  jake.exec('node_modules/.bin/webpack --config webpack.config.js', EXEC_OPTS, function () {
    jake.logger.log('Build done.');
    complete();
  });
});


desc('Test with a sample event');
task('test', ['build'], { async: true }, function () {
  jake.exec("node -e \"var fs=require('fs');var event=JSON.parse(fs.readFileSync(__dirname+'/event.json'));var terminate=function(){console.log('Function done');console.log.apply(console,arguments)};var index=require('./dist/index');index.handler(event,{done:terminate,fail:terminate,succeed:terminate});\"", EXEC_OPTS, function () {
    jake.logger.log('Test done.');
    complete();
  });
});


desc('Watch and re-test on change');
watchTask('watch', ['test'], { async: true }, function () {
  this.watchFiles.include([
    './src/**/*.js',
  ]);
});


desc('Build then watch');
task('default', ['build', 'watch']);

package.json

{
  "name": "xxx",
  "version": "1.0.0",
  "description": "",
  "main": "",
  "scripts": {
    "build": "node_modules/.bin/webpack --config webpack.config.js",
    "test": "node -e \"var fs=require('fs');var event=JSON.parse(fs.readFileSync(__dirname+'/event.json'));var terminate=function(){console.log('Function done');console.log.apply(console,arguments)};var index=require('./dist/index');index.handler(event,{done:terminate,fail:terminate,succeed:terminate});\"",
    "build-test": "npm run-script -s build && npm run-script -s test",
    "watch": "nodemon -w src/** -x npm -- run-script -s build-test"
  },
  "author": "",
  "license": "",
  "dependencies": {
    "babel-core": "^5.8.22",
    "babel-loader": "^5.3.2",
    "source-map-support": "^0.3.2",
    "webpack": "^1.11.0"
  }
}

test.js

var fs = require('fs');
var event = JSON.parse(fs.readFileSync(__dirname + '/event.json'));

var terminate = function() {
  console.log('Function done');
  console.log.apply(console, arguments);
};

var index = require('./dist/index');
index.handler(event, {
  done: terminate,
  fail: terminate,
  succeed: terminate,
});

webpack.config.js

// some code from http://jlongster.com/Backend-Apps-with-Webpack--Part-I

var webpack = require('webpack');
var path = require('path');
var fs = require('fs');

function includeDir(dirName) {
  fs.readdirSync(dirName)
    .filter(function(x) {
      return ['.bin'].indexOf(x) === -1;
    })
    .forEach(function(mod) {
      nodeModules[mod] = 'commonjs ' + mod;
    });
}

var nodeModules = {};
includeDir('node_modules');
includeDir('../../node_modules');

module.exports = {
  entry: './src/index.js',
  target: 'node',
  node: {
    __filename: true,
    __dirname: true,
  },
  output: {
    library: 'handler',
    libraryTarget: 'commonjs2',
    path: __dirname + '/dist',
    filename: 'index.js',
  },
  module: {
    loaders: [
      { test: /\.js$/, exclude: /node_modules/, loader: 'babel' },
    ],
  },
  externals: nodeModules,
  devtool: 'sourcemap',
  plugins: [
    new webpack.BannerPlugin('require("source-map-support").install();', { raw: true, entryOnly: false }),
  ],
};