Support for JupyterLite 0.6

.gitignore

@@ -10,6 +10,9 @@ jupyterlite_webr/labextension
 .yarn/
 .jupyterlite.doit.db
 jupyterlite_webr/_version.py
+jupyter-lite.json
+_dev
+venv
 
 # Created by https://www.gitignore.io/api/python
 # Edit at https://www.gitignore.io/?templates=python

environment.yml

@@ -12,4 +12,4 @@ dependencies:
   - nodejs=20
   # deps
   - jupyterlab >=4.0,<5
-  - jupyterlite-core >=0.5.0
+  - jupyterlite-core >=0.6.0

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@r-wasm/jupyterlite-webr-kernel",
-  "version": "0.5.2",
+  "version": "0.6.0",
   "description": "An R kernel for JupyterLite, powered by webR",
   "keywords": [
     "jupyter",
@@ -60,14 +60,15 @@
     "watch:labextension": "jupyter labextension watch ."
   },
   "dependencies": {
-    "@jupyterlite/kernel": "^0.5.0",
-    "@jupyterlite/server": "^0.5.0",
+    "@jupyterlab/application": "^4.4.0",
+    "@jupyterlite/kernel": "^0.6.2",
+    "@jupyterlite/server": "^0.6.2",
     "hash.js": "^1.1.7",
-    "webr": "^0.4.3"
+    "webr": "^0.5.1"
   },
   "devDependencies": {
-    "@jupyterlab/builder": "^4.4.1",
-    "@jupyterlab/coreutils": "^6.4.0",
+    "@jupyterlab/builder": "^4.4.3",
+    "@jupyterlab/coreutils": "^6.4.3",
     "@types/uuid": "^9.0.0",
     "@typescript-eslint/eslint-plugin": "^4.8.1",
     "@typescript-eslint/parser": "^4.8.1",
@@ -103,16 +104,13 @@
       }
     }
   },
-  "jupyterlite": {
-    "liteExtension": true
-  },
   "jupyter-releaser": {
     "skip": [
       "check-links"
     ],
     "hooks": {
       "before-build-npm": [
-        "python -m pip install 'jupyterlab>=4.3.0,<5'",
+        "python -m pip install 'jupyterlab>=4.4.0,<5'",
         "jlpm"
       ]
     }

pyproject.toml

@@ -1,5 +1,5 @@
 [build-system]
-requires = ["hatchling>=1.5.0", "jupyterlab>=4.3.0,<4.4", "hatch-nodejs-version>=0.3.2"]
+requires = ["hatchling>=1.24.0", "hatch-jupyter-builder", "jupyterlab>=4.4.0,<4.5", "hatch-nodejs-version>=0.3.2"]
 build-backend = "hatchling.build"
 
 [project]
@@ -22,14 +22,14 @@ classifiers = [
   "Programming Language :: Python :: 3.12",
   "Programming Language :: Python :: 3.13",
 ]
-dependencies = ["jupyterlite-core>=0.5,<0.6"]
+dependencies = ["jupyterlite-core>=0.6,<0.7"]
 dynamic = ["version", "description", "authors", "urls", "keywords"]
 
 [project.optional-dependencies]
 dev = [
-  "jupyterlab>=4.3.0,<4.4",
+  "jupyterlab>=4.4.0,<4.5",
   "ruff==0.1.5",
-  "jupyterlite-pyodide-kernel>=0.5.2",
+  "jupyterlite-pyodide-kernel>=0.6.1",
   "pkginfo>=1.10.0",
 ]
 
@@ -51,7 +51,7 @@ exclude = [".github"]
 path = "jupyterlite_webr/_version.py"
 
 [tool.hatch.build.hooks.jupyter-builder]
-dependencies = ["hatch-jupyter-builder>=0.5"]
+dependencies = ["hatch-jupyter-builder>=0.9"]
 build-function = "hatch_jupyter_builder.npm_builder"
 ensured-targets = [
     "jupyterlite_webr/labextension/static/style.js",
@@ -79,7 +79,7 @@ version_cmd = "hatch version"
 
 [tool.jupyter-releaser.hooks]
 before-build-npm = [
-    "python -m pip install 'jupyterlab>=4.3.0,<4.4'",
+    "python -m pip install 'jupyterlab>=4.4.0,<4.5'",
     "jlpm",
     "jlpm build:prod"
 ]

src/index.ts

@@ -1,18 +1,24 @@
-import { JupyterLiteServer, JupyterLiteServerPlugin } from '@jupyterlite/server';
+import { JupyterFrontEnd, JupyterFrontEndPlugin } from '@jupyterlab/application';
 import { IKernel, IKernelSpecs } from '@jupyterlite/kernel';
 import { PageConfig, URLExt } from '@jupyterlab/coreutils';
 import { WebRKernel } from './webr_kernel';
 import logo32 from '!!file-loader?context=.!../style/logos/r-logo-32x32.png';
 import logo64 from '!!file-loader?context=.!../style/logos/r-logo-64x64.png';
 import type { WebROptions } from 'webr';
+import { IServiceWorkerManager } from '@jupyterlite/server';
 
 const PLUGIN_ID = '@r-wasm/webr-kernel-extension:kernel';
 
-const server_kernel: JupyterLiteServerPlugin<void> = {
+const server_kernel: JupyterFrontEndPlugin<void> = {
   id: PLUGIN_ID,
   autoStart: true,
   requires: [IKernelSpecs],
-  activate: (app: JupyterLiteServer, kernelspecs: IKernelSpecs) => {
+  optional: [IServiceWorkerManager],
+  activate: (
+    app: JupyterFrontEnd,
+    kernelspecs: IKernelSpecs,
+    serviceWorkerManager: IServiceWorkerManager | null
+  ) => {
     const config = JSON.parse(
       PageConfig.getOption('litePluginSettings') || '{}'
     )[PLUGIN_ID] || {};
@@ -53,11 +59,11 @@ const server_kernel: JupyterLiteServerPlugin<void> = {
         },
       },
       create: async (options: IKernel.IOptions): Promise<IKernel> => {
-        return new WebRKernel({ ...options }, webROptions);
+        return new WebRKernel({ ...options }, webROptions, serviceWorkerManager);
       },
     });
   },
 };
 
-const plugins: JupyterLiteServerPlugin<any>[] = [server_kernel];
+const plugins: JupyterFrontEndPlugin<any>[] = [server_kernel];
 export default plugins;

src/webr_kernel.ts

@@ -4,6 +4,7 @@ import { IKernel } from '@jupyterlite/kernel';
 
 import { Console, WebR, Shelter, WebROptions } from 'webr';
 import { RList, RCharacter, RLogical } from 'webr';
+import { IServiceWorkerManager } from '@jupyterlite/server';
 
 const protocolVersion = "5.3";
 
@@ -15,7 +16,11 @@ export class WebRKernel extends BaseKernel {
   #bitmapCanvas: HTMLCanvasElement;
   #lastPlot: string | null = null;
 
-  constructor(options: IKernel.IOptions, webROptions: WebROptions) {
+  constructor(
+    options: IKernel.IOptions,
+    webROptions: WebROptions,
+    private serviceWorkerManager: IServiceWorkerManager | null
+  ) {
     super(options);
     this.#webRConsole = new Console({
       stdout: (line: string) => console.log(line),
@@ -57,6 +62,7 @@ export class WebRKernel extends BaseKernel {
 
     // Mount Jupyterlite storage and set the CWD
     await this.webR.evalRVoid(`
+      options(webr.drivefs.browsingContextId = "${this.serviceWorkerManager?.browsingContextId}")
       webr::mount("/drive", type="DRIVEFS")
       setwd("/drive")
     `);