Replaced webpack with rollup; (#4596)

Co-authored-by: Jay <jasonsaayman@gmail.com>

Gruntfile.js

@@ -29,18 +29,6 @@ module.exports = function(grunt) {
       all: {}
     },
 
-    usebanner: {
-      all: {
-        options: {
-          banner: '<%= meta.banner %>',
-          linebreak: false
-        },
-        files: {
-          src: ['dist/*.js']
-        }
-      }
-    },
-
     eslint: {
       target: ['lib/**/*.js']
     },
@@ -77,7 +65,11 @@ module.exports = function(grunt) {
       }
     },
 
-    webpack: require('./webpack.config.js')
+    shell: {
+      rollup: {
+        command: 'rollup -c -m'
+      }
+    }
   });
 
   grunt.registerMultiTask('package2bower', 'Sync package.json to bower.json', function() {
@@ -104,6 +96,6 @@ module.exports = function(grunt) {
   });
 
   grunt.registerTask('test', 'Run the jasmine and mocha tests', ['eslint', 'mochaTest', 'karma:single']);
-  grunt.registerTask('build', 'Run webpack and bundle the source', ['clean', 'webpack', 'usebanner']);
-  grunt.registerTask('version', 'Sync version info for a release', ['usebanner', 'package2bower', 'package2env']);
+  grunt.registerTask('build', 'Run rollup and bundle the source', ['clean', 'shell:rollup']);
+  grunt.registerTask('version', 'Sync version info for a release', ['package2bower', 'package2env']);
 };

package.json

@@ -31,6 +31,11 @@
   },
   "homepage": "https://axios-http.com",
   "devDependencies": {
+    "@rollup/plugin-babel": "^5.3.0",
+    "@rollup/plugin-commonjs": "^15.1.0",
+    "@rollup/plugin-json": "^4.1.0",
+    "@rollup/plugin-multi-entry": "^4.0.0",
+    "@rollup/plugin-node-resolve": "^9.0.0",
     "abortcontroller-polyfill": "^1.7.3",
     "coveralls": "^3.1.1",
     "dtslint": "^4.2.1",
@@ -44,6 +49,7 @@
     "grunt-eslint": "^24.0.0",
     "grunt-karma": "^4.0.2",
     "grunt-mocha-test": "^0.13.3",
+    "grunt-shell": "^3.0.1",
     "grunt-webpack": "^5.0.0",
     "istanbul-instrumenter-loader": "^3.0.1",
     "jasmine-core": "^2.4.1",
@@ -60,6 +66,8 @@
     "load-grunt-tasks": "^5.1.0",
     "minimist": "^1.2.6",
     "mocha": "^8.2.1",
+    "rollup": "^2.67.0",
+    "rollup-plugin-terser": "^7.0.2",
     "sinon": "^4.5.0",
     "terser-webpack-plugin": "^4.2.3",
     "typescript": "^4.6.3",

rollup.config.js

@@ -0,0 +1,60 @@
+import resolve from '@rollup/plugin-node-resolve';
+import commonjs from '@rollup/plugin-commonjs';
+import {terser} from "rollup-plugin-terser";
+import json from '@rollup/plugin-json';
+
+const lib = require("./package.json");
+const outputFileName = 'axios';
+const name = "axios";
+const input = './lib/axios.js';
+
+const buildConfig = (config) => {
+
+  const build = ({minified}) => ({
+    input,
+    ...config,
+    output: {
+      ...config.output,
+      file: `${config.output.file}.${minified ? "min.js" : "js"}`
+    },
+    plugins: [
+      json(),
+      resolve({browser: true}),
+      commonjs(),
+      minified && terser(),
+      ...(config.plugins || []),
+    ]
+  });
+
+  return [
+    build({minified: false}),
+    build({minified: true}),
+  ];
+};
+
+export default async () => {
+  const year = new Date().getFullYear();
+  const banner = `// ${lib.name} v${lib.version} Copyright (c) ${year} ${lib.author}`;
+
+  return [
+    ...buildConfig({
+      output: {
+        file: `dist/${outputFileName}`,
+        name,
+        format: "umd",
+        exports: "default",
+        banner
+      }
+    }),
+
+    ...buildConfig({
+      output: {
+        file: `dist/esm/${outputFileName}`,
+        format: "esm",
+        preferConst: true,
+        exports: "named",
+        banner
+      }
+    })
+  ]
+};