fix: build hydrogen using parcel

.github/workflows/CI.yml

@@ -27,6 +27,7 @@ jobs:
       - name: Install dependencies and build
         run: |
           apm install
+          npm run tsc || echo done
           npm run build
 
       - name: Run tests 👩🏾‍💻

.npmrc

@@ -1,4 +1,3 @@
 public-hoist-pattern[]=*
-package-lock=false
 lockfile=true
 prefer-frozen-lockfile=false

babel.config.json

@@ -0,0 +1,6 @@
+{
+  "plugins": [
+    ["@babel/plugin-proposal-decorators", { "legacy": true }],
+    ["@babel/plugin-proposal-class-properties", { "loose": true }]
+  ]
+}

package.json

@@ -1,6 +1,6 @@
 {
   "name": "Hydrogen",
-  "main": "./dist/main",
+  "main": "./dist/main.js",
   "version": "2.16.2",
   "description": "Run code interactively, inspect data, and plot. All the power of Jupyter kernels, inside your favorite text editor.",
   "author": "nteract contributors",
@@ -42,12 +42,13 @@
     "build.test": "npm run build && npm run test",
     "test": "echo 'test without rebuilding' && atom --test spec",
     "clean": "shx rm -rf dist",
-    "dev": "npm run clean && tsc -p lib/tsconfig.json --watch",
-    "build": "npm run clean && tsc -p lib/tsconfig.json || echo done",
+    "tsc": "tsc -p lib/tsconfig.json",
+    "dev": "npm run tsc -- --watch",
+    "build": "cross-env NODE_ENV=production parcel build ./lib/main.ts --detailed-report",
     "build:services-docs": "markdox lib/services/index.js -o lib/services/README.md",
     "build:plugin-docs": "markdox lib/plugin-api/hydrogen-provider.js lib/plugin-api/hydrogen-kernel.js -o docs/PluginAPI.md",
     "build:docs": "npm run build:plugin-docs && npm run build:services-docs",
-    "build-commit": "build-commit -o dist",
+    "build-commit": "npm run clean && build-commit -o dist",
     "prepare": "npm run build"
   },
   "atomTestRunner": "atom-jasmine3-test-runner",
@@ -111,6 +112,8 @@
     }
   },
   "devDependencies": {
+    "@babel/plugin-proposal-class-properties": "^7.13.0",
+    "@babel/plugin-proposal-decorators": "^7.14.2",
     "@nteract/types": "^7.1.7",
     "@types/atom": "^1.40.10",
     "@types/enzyme": "^3.10.8",
@@ -126,15 +129,41 @@
     "@types/ws": "^7.4.1",
     "atom-jasmine3-test-runner": "^5.2.5",
     "build-commit": "^0.1.4",
+    "cross-env": "^7.0.3",
     "electron": "^6",
     "enzyme": "^3.11.0",
     "enzyme-adapter-react-16": "^1.15.6",
     "eslint-config-atomic": "^1.14.4",
     "eslint-plugin-you-dont-need-lodash-underscore": "^6.12.0",
     "markdox": "^0.1.10",
+    "parcel": "^2.0.0-beta.3.1",
     "prettier-config-atomic": "^2.0.5",
     "react-test-renderer": "^17.0.2",
     "shx": "^0.3.3",
     "typescript": "^4.2.4"
+  },
+  "targets": {
+    "main": {
+      "context": "electron-renderer",
+      "engines": {
+        "electron": ">=6.x"
+      },
+      "includeNodeModules": {
+        "atom": false,
+        "electron": false,
+        "@aminya/zeromq": false,
+        "canvas": false,
+        "react": false,
+        "react-dom": false,
+        "react-refresh": false,
+        "mobx-react": false,
+        "@nteract/plotly": false,
+        "refractor": false
+      },
+      "isLibrary": true
+    }
+  },
+  "alias": {
+    "moment": "moment/src/moment.js"
   }
 }