feat: jupyter lab 3.0 federated bundle support

README.md

@@ -74,4 +74,8 @@ jupyter nbextension install --py --symlink --sys-prefix pythreejs
 # To clean out generated files, run:
 npm run clean
 
+# To symlink the jupyter lab extension
+jupyter labextension develop .. --overwrite
+
+
 ```

js/package.json

@@ -26,21 +26,22 @@
     "build:all": "npm run build:labextension",
     "build:bundles": "webpack -d && node ./scripts/post-build.js --debug",
     "build:bundles-prod": "webpack -p && node ./scripts/post-build.js",
-    "build:labextension": "rimraf lab-dist && mkdirp lab-dist && cd lab-dist && npm pack ..",
+    "build:labextension": "rimraf lab-dist && mkdirp lab-dist && cd lab-dist && npm pack .. && cd .. && jupyter labextension build .",
     "clean": "rimraf dist && rimraf ../pythreejs/static && rimraf lab-dist && node ./scripts/clean-generated-files.js",
     "prepack": "npm run build:bundles-prod",
     "prepare": "npm run autogen",
     "update:deps": "update-dependency --minimal --regex \"^(?!@jupyter-widgets|three)\"",
     "watch": "webpack -d -w"
   },
   "dependencies": {
-    "@jupyter-widgets/base": "^1.2.5 || ^2.0.0 || ^3.0.0",
+    "@jupyter-widgets/base": "^1.2.5 || ^2.0.0 || ^3.0.0 || ^4.0.0-alpha.2",
     "bluebird": "^3.5.5",
     "jupyter-dataserializers": "^2.2.0",
     "three": "^0.97.0",
     "underscore": "^1.8.3"
   },
   "devDependencies": {
+    "@jupyterlab/builder": "^3.0.0-rc.13",
     "@jupyterlab/buildutils": "^2.0.2",
     "eslint": "^6.8.0",
     "fs-extra": "^8.1.0",
@@ -53,6 +54,13 @@
   },
   "jupyterlab": {
     "extension": "src/jupyterlab-plugin",
+    "outputDir": "../share/jupyter/labextensions/jupyter-threejs",
+    "sharedPackages": {
+      "@jupyter-widgets/base": {
+        "bundled": false,
+        "singleton": true
+      }
+    },
     "discovery": {
       "kernel": [
         {

js/scripts/templates/py_top_level_init.mustache

@@ -8,6 +8,25 @@ from __future__ import absolute_import
 from {{ module.pyRelativePath }} import *
 {{/each}}
 
+
+def _prefix():
+    import sys
+    from pathlib import Path
+    prefix = sys.prefix
+    here = Path(__file__).parent
+    # for when in dev mode
+    if (here.parent / 'setup.py').exists():
+        prefix = here.parent
+    return prefix
+
+
+def _jupyter_labextension_paths():
+    return [{
+        'src': f'{_prefix()}/share/jupyter/labextensions/{npm_pkg_name}/',
+        'dest': f'{npm_pkg_name}',
+    }]
+
+
 def _jupyter_nbextension_paths():
     return [{
         'section': 'notebook',

js/src/jupyterlab-plugin.js

@@ -19,7 +19,7 @@ module.exports = {
                             console.error(err);
                             reject(err);
                         },
-                        'jupyter-threejs'
+                        'jupyter-threejs-chunk'
                     );
                 });
             }

pyproject.toml

@@ -0,0 +1,3 @@
+[build-system]
+requires = ["jupyter_packaging~=0.7.0", "jupyterlab>=3.0.0rc4,==3.*", "setuptools>=40.8.0", "wheel"]
+build-backend = "setuptools.build_meta"

setup.py

@@ -4,25 +4,20 @@
 import os
 import sys
 
-from setupbase import (
-    log,
+from jupyter_packaging import (
     create_cmdclass,
     install_npm,
-    combine_commands,
     ensure_targets,
+    combine_commands,
     get_version,
 )
 
 from setuptools import setup
 
 
-log.set_verbosity(log.DEBUG)
-log.info('setup.py entered')
-log.info('$PATH=%s' % os.environ['PATH'])
-
 LONG_DESCRIPTION = 'A Python/ThreeJS bridge utilizing the Jupyter widget infrastructure.'
 
-here = os.path.abspath(os.path.dirname(sys.argv[0]))
+here = os.path.dirname(os.path.abspath(__file__))
 name = 'pythreejs'
 version = get_version(os.path.join(here, name, '_version.py'))
 
@@ -39,6 +34,12 @@
         ('share/jupyter/lab/extensions',
          'js/lab-dist',
          'jupyter-threejs-*.tgz'),
+        ('share/jupyter/labextensions/jupyter-threejs/',
+         'share/jupyter/labextensions/jupyter-threejs/',
+         '*.*'),
+        ('share/jupyter/labextensions/jupyter-threejs/static',
+         'share/jupyter/labextensions/jupyter-threejs/static/',
+         '*.*'),
         ('etc/jupyter/nbconfig',
          'jupyter-config',
          '**/*.json'),