upgrade dev dependencies

package.json

@@ -29,8 +29,8 @@
  },
  "devDependencies": {
  "@jupyter-widgets/base": "^1.1.10",
- "babel-core": "^6.25.0",
- "babel-loader": "^7.1.1",
+ "babel-core": "^6.26.3",
+ "babel-loader": "^7.1.5",
  "babel-plugin-transform-object-rest-spread": "^6.26.0",
  "babel-plugin-transform-react-jsx": "^6.24.1",
  "babel-preset-env": "^1.6.1",
@@ -39,19 +39,21 @@
  "coveralls": "^3.0.0",
  "cross-env": "^5.1.0",
  "css-loader": "^0.28.4",
- "file-loader": "^1.1.5",
- "istanbul-instrumenter-loader": "^3.0.0",
+ "file-loader": "^3.0.1",
+ "istanbul-instrumenter-loader": "^3.0.1",
  "jsdom": "^11.5.1",
- "mocha": "^2.3.4",
- "mocha-webpack": "^1.0.1",
+ "mocha": "^6.1.3",
+ "mochapack": "^1.1.1",
  "null-loader": "^0.1.1",
  "nyc": "^11.2.1",
  "raw-loader": "^0.5.1",
  "standard": "^10.0.3",
  "style-loader": "^0.18.2",
+ "uglifyjs-webpack-plugin": "^2.1.2",
  "url-loader": "^0.6.2",
- "webpack": "^3.8.1",
- "webpack-dev-server": "^2.7.1",
+ "webpack": "^4.30.0",
+ "webpack-cli": "^3.3.0",
+ "webpack-dev-server": "^3.3.1",
  "webpack-merge": "^4.1.0",
  "webpack-node-externals": "^1.6.0"
  },
@@ -76,7 +78,7 @@
  "watch": "./node_modules/.bin/webpack --config webpack.prod.js --watch",
  "start": "./node_modules/.bin/webpack-dev-server --config webpack.dev.js",
  "clean": "rm -r dist/*; rm -r py/escher/static/*",
- "test": "./node_modules/.bin/mocha-webpack --webpack-config webpack.test.js \"src/tests/*.js\"",
+ "test": "./node_modules/.bin/mochapack --webpack-config webpack.test.js \"src/tests/*.js\"",
  "copy": "cp dist/escher.min.js dist/index.js && cp package.json py/escher/static/ && cp jupyter/notebook-extension.js py/escher/static/extension.js && cp dist/escher.min.* py/escher/static/ && mkdir -p py/escher/static/jsonschema; cp jsonschema/* py/escher/static/jsonschema/",
  "coverage": "./node_modules/.bin/cross-env NODE_ENV=coverage ./node_modules/.bin/nyc --reporter=text-lcov npm run test | ./node_modules/.bin/coveralls"
  },

webpack.dev.js

@@ -3,7 +3,9 @@ const common = require('./webpack.common.js')
 
 module.exports = merge.smart(common, {
  entry: './dev-server/index.js',
- output: 'bundle.js',
+ output: {
+ filename: 'bundle.js'
+ },
  devServer: {
  contentBase: './dev-server',
  open: true,

webpack.prod.js

@@ -1,7 +1,7 @@
 const path = require('path')
-const webpack = require('webpack')
 const merge = require('webpack-merge')
 const common = require('./webpack.common.js')
+const UglifyJsPlugin = require('uglifyjs-webpack-plugin')
 
 // to visualize the webpack bundle contents:
 // yarn add -D webpack-bundle-analyzer
@@ -19,12 +19,14 @@ module.exports = merge.smart(common, {
  library: 'escher',
  libraryTarget: 'umd'
  },
- plugins: [
- new webpack.optimize.UglifyJsPlugin({
- include: /\.min\.js$/,
- sourceMap: true
- })
- // new BundleAnalyzerPlugin()
- ],
+ optimization: {
+ minimizer: [
+ new UglifyJsPlugin({
+ include: /\.min\.js$/,
+ sourceMap: true
+ })
+ ]
+ },
+ // plugins: [new BundleAnalyzerPlugin()],
  externals: ['@jupyter-widgets/base']
 })