BUG: Make jupyterlite run repeatable

Run in a subdirectory. jupyterlite gets confused by Sphinx _build
content otherwise.

Author: thewtex

docs/conf.py

@@ -19,8 +19,6 @@
 import os
 import json
 
-RTD = json.loads(os.environ.get("READTHEDOCS", "False").lower())
-
 # -- Project information -----------------------------------------------------
 
 project = 'itkwidgets'
@@ -38,9 +36,6 @@
 # ones.
 extensions = ['myst_parser',]
 
-here = Path(__file__).parent.resolve()
-jupyterlite_config = here / "jupyterlite_config.json"
-
 html_theme_options = dict(
     github_url='https://github.com/InsightSoftwareConsortium/itkwidgets'
 )
@@ -67,21 +62,16 @@
 # relative to this directory. They are copied after the builtin static files,
 # so a file named "default.css" will overwrite the builtin "default.css".
 html_static_path = ['_static',
-        '_output']
-
-def jupyterlite_build(app: Sphinx):
-    from pprint import pprint
-    pprint('jupyterlite_build')
-    pprint(app)
-    pprint(app.builder)
-    if app.builder:
-        pprint(app.builder.format)
-    if app.builder and app.builder.format == "html":
-        subprocess.check_call(['jupyter', 'lite', 'build', '--config',
-            str(jupyterlite_config)], cwd=str(here))
+        'jupyterlite/_output']
+
+def jupyterlite_build(app: Sphinx, error):
+    here = Path(__file__).parent.resolve()
+    jupyterlite_config = here / "jupyterlite" / "jupyterlite_config.json"
+    subprocess.check_call(['jupyter', 'lite', 'build', '--config',
+        str(jupyterlite_config)], cwd=str(here / 'jupyterlite'))
 
 def setup(app):
-    # For local builds, run jupyter lite build manually
+    # For local builds, you can run jupyter lite build manually
+    # $ cd jupyterlite
     # $ jupyter lite serve --config ./jupyterlite_config.json
-    if RTD:
-        app.connect("builder-inited", jupyterlite_build)
+    app.connect("config-inited", jupyterlite_build)

docs/files/Hello3DWorld.ipynb renamed to docs/jupyterlite/files/Hello3DWorld.ipynb

@@ -53,7 +53,7 @@
     },
     {
       "cell_type": "code",
-      "source": "viewer = view(stent, rotate=True)\nviewer",
+      "source": "view(stent, rotate=True)",
       "metadata": {
         "trusted": true
       },
@@ -63,36 +63,28 @@
           "output_type": "display_data",
           "data": {
             "text/plain": "<IPython.core.display.Javascript object>",
-            "application/javascript": "window.connectPlugin && window.connectPlugin(\"cabe680b-467f-411c-9d18-4af39bd42818\")"
+            "application/javascript": "window.connectPlugin && window.connectPlugin(\"3abf64f7-6e01-4955-8edc-f91265e8fc16\")"
           },
           "metadata": {}
         },
         {
           "output_type": "display_data",
           "data": {
             "text/plain": "<IPython.core.display.HTML object>",
-            "text/html": "<div id=\"28428cf3-8ce6-4b09-bfcb-19c6345f165e\"></div>"
+            "text/html": "<div id=\"ad0bc621-d53f-4f27-99bd-32a0548341d3\"></div>"
           },
           "metadata": {}
         },
         {
-          "execution_count": 5,
+          "execution_count": 6,
           "output_type": "execute_result",
           "data": {
-            "text/plain": "<itkwidgets.viewer.Viewer at 0x24e0c60>"
+            "text/plain": "<itkwidgets.viewer.Viewer at 0x384df88>"
           },
           "metadata": {}
         }
       ],
       "id": "26582452"
-    },
-    {
-      "cell_type": "code",
-      "source": "",
-      "metadata": {},
-      "execution_count": null,
-      "outputs": [],
-      "id": "9ac0de0c-7693-4a72-871b-0f7a9c4b2739"
     }
   ]
 }