baseline setup to build with rollup

Author: leeoniya

package.json

@@ -30,48 +30,14 @@
     "dist/*.js"
   ],
   "devDependencies": {
-    "@babel/core": "^7.6.2",
-    "@babel/preset-env": "^7.6.2",
-    "babel-preset-es2015-rollup": "^3.0.0",
-    "clean-css": "^4.2.1",
-    "coveralls": "^3.0.0",
-    "eslint": "^6.0.0",
-    "eslint-config-chartjs": "^0.2.0",
-    "eslint-plugin-html": "^6.0.0",
-    "gitbook-cli": "^2.3.2",
-    "gulp": "^4.0.0",
-    "gulp-eslint": "^6.0.0",
-    "gulp-file": "^0.4.0",
-    "gulp-htmllint": "^0.0.16",
-    "gulp-jsdoc3": "^2.0.0",
-    "gulp-replace": "^1.0.0",
-    "gulp-size": "^3.0.0",
-    "gulp-streamify": "^1.0.2",
-    "gulp-terser": "^1.1.6",
-    "gulp-zip": "^5.0.0",
-    "jasmine": "^3.3.0",
-    "jasmine-core": "^3.3.0",
-    "karma": "^4.0.0",
-    "karma-chrome-launcher": "^3.0.0",
-    "karma-coverage": "^2.0.0",
-    "karma-edge-launcher": "^0.4.2",
-    "karma-firefox-launcher": "^1.0.1",
-    "karma-jasmine": "^2.0.1",
-    "karma-jasmine-html-reporter": "^1.4.0",
-    "karma-rollup-preprocessor": "^7.0.0",
-    "karma-safari-private-launcher": "^1.0.0",
-    "merge-stream": "^1.0.1",
-    "moment": "^2.10.2",
-    "pixelmatch": "^5.0.0",
-    "rollup": "^1.0.0",
-    "rollup-plugin-babel": "^4.3.3",
-    "rollup-plugin-commonjs": "^10.0.0",
-    "rollup-plugin-istanbul": "^2.0.1",
-    "rollup-plugin-node-resolve": "^5.0.0",
-    "rollup-plugin-terser": "^5.0.0",
-    "yargs": "^14.0.0"
+    "@rollup/plugin-buble": "^0.20.0",
+    "@rollup/plugin-node-resolve": "^6.0.0",
+    "rollup": "^1.27.13",
+    "rollup-plugin-cjs-es": "^0.9.0",
+    "rollup-plugin-string": "^3.0.0",
+    "rollup-plugin-terser": "^5.1.3"
   },
   "dependencies": {
-    "chartjs-color": "^2.1.0"
+    "chartjs-color": "^2.4.1"
   }
 }

rollup.config.js

@@ -1,146 +1,59 @@
-/* eslint-env es6 */
+import resolve from '@rollup/plugin-node-resolve';
+import cjs from "rollup-plugin-cjs-es";
+import buble from '@rollup/plugin-buble';
+import { string } from "rollup-plugin-string";
+import { terser } from 'rollup-plugin-terser';
 
-const commonjs = require('rollup-plugin-commonjs');
-const resolve = require('rollup-plugin-node-resolve');
-const babel = require('rollup-plugin-babel');
-const terser = require('rollup-plugin-terser').terser;
-const optional = require('./rollup.plugins').optional;
-const stylesheet = require('./rollup.plugins').stylesheet;
-const pkg = require('./package.json');
-
-const input = 'src/index.js';
-const banner = `/*!
- * Chart.js v${pkg.version}
- * ${pkg.homepage}
- * (c) ${(new Date(process.env.SOURCE_DATE_EPOCH ? (process.env.SOURCE_DATE_EPOCH * 1000) : new Date().getTime())).getFullYear()} Chart.js Contributors
- * Released under the MIT License
- */`;
-
-module.exports = [
-	// ES6 builds
-	// dist/Chart.esm.min.js
-	// dist/Chart.esm.js
+export default [
 	{
-		input: input,
-		plugins: [
-			resolve(),
-			commonjs(),
-			babel({
-				exclude: 'node_modules/**'
-			}),
-			stylesheet({
-				extract: true
-			}),
-		],
+		input: "src/index.js",
 		output: {
-			name: 'Chart',
-			file: 'dist/Chart.esm.js',
-			banner: banner,
-			format: 'esm',
-			indent: false,
-			globals: {
-				moment: 'moment'
-			}
+			file: "dist/Chart.js",
+			format: "iife",
+			name: "Chart",
 		},
-		external: [
-			'moment'
-		]
-	},
-	{
-		input: input,
 		plugins: [
 			resolve(),
-			commonjs(),
-			babel({
-				exclude: 'node_modules/**'
+			string({
+				include: "**/*.css",
 			}),
-			stylesheet({
-				extract: true,
-				minify: true
+			cjs({nested: true}),
+			buble({
+				objectAssign: "Object.assign"
 			}),
-			terser({
-				output: {
-					preamble: banner
-				}
-			})
-		],
-		output: {
-			name: 'Chart',
-			file: 'dist/Chart.esm.min.js',
-			format: 'esm',
-			indent: false,
-			globals: {
-				moment: 'moment'
-			}
-		},
-		external: [
-			'moment'
 		]
 	},
-	// UMD builds
-	// dist/Chart.min.js
-	// dist/Chart.js
 	{
-		input: input,
-		plugins: [
-			resolve(),
-			commonjs(),
-			babel({
-				exclude: 'node_modules/**'
-			}),
-			stylesheet({
-				extract: true
-			}),
-			optional({
-				include: ['moment']
-			})
-		],
+		input: "src/index.js",
 		output: {
-			name: 'Chart',
-			file: 'dist/Chart.js',
-			banner: banner,
-			format: 'umd',
-			indent: false,
-			globals: {
-				moment: 'moment'
-			}
+			file: "dist/Chart.min.js",
+			format: "iife",
+			name: "Chart",
 		},
-		external: [
-			'moment'
-		]
-	},
-	{
-		input: input,
 		plugins: [
 			resolve(),
-			commonjs(),
-			babel({
-				exclude: 'node_modules/**'
+			string({
+				include: "**/*.css",
 			}),
-			optional({
-				include: ['moment']
-			}),
-			stylesheet({
-				extract: true,
-				minify: true
+			cjs({nested: true}),
+			buble({
+				objectAssign: "Object.assign"
 			}),
 			terser({
-				output: {
-					preamble: banner
-				}
+				compress: {
+					inline: 0,
+				//	passes: 3,
+					keep_fargs: false,
+					pure_getters: true,
+					unsafe: true,
+					unsafe_comps: true,
+					unsafe_math: true,
+					unsafe_undefined: true,
+				},
+			//	output: {
+			//		comments: /^!/
+			//	}
 			})
-		],
-		output: {
-			name: 'Chart',
-			file: 'dist/Chart.min.js',
-			format: 'umd',
-			indent: false,
-			globals: {
-				moment: 'moment'
-			}
-		},
-		external: [
-			'moment'
 		]
 	}
-];
+];

src/adapters/adapter.moment.js

@@ -2,7 +2,7 @@
 
 'use strict';
 
-var moment = require('moment');
+//var moment = require('../../node_modules/moment/src/moment.js');
 var adapters = require('../core/core.adapters');
 
 var FORMATS = {