Update to JupyterLab 4

.eslintrc.js

@@ -12,18 +12,26 @@ module.exports = {
   },
   plugins: ['@typescript-eslint'],
   rules: {
-    '@typescript-eslint/interface-name-prefix': [
+    '@typescript-eslint/naming-convention': [
       'error',
-      { prefixWithI: 'always' }
+      {
+        selector: 'interface',
+        format: ['PascalCase'],
+        custom: {
+          regex: '^I[A-Z]',
+          match: true
+        }
+      }
     ],
     '@typescript-eslint/no-unused-vars': ['warn', { args: 'none' }],
     '@typescript-eslint/no-explicit-any': 'off',
     '@typescript-eslint/no-namespace': 'off',
     '@typescript-eslint/no-use-before-define': 'off',
-	'@typescript-eslint/camelcase': 'off',
-	'@typescript-eslint/no-var-requires': 'off',
-	'@typescript-eslint/no-empty-function': 'off',
-	'no-prototype-builtins': 'off',
+    '@typescript-eslint/camelcase': 'off',
+    '@typescript-eslint/no-non-null-assertion': 'off',
+    '@typescript-eslint/no-var-requires': 'off',
+    '@typescript-eslint/no-empty-function': 'off',
+    'no-prototype-builtins': 'off',
     '@typescript-eslint/quotes': [
       'error',
       'single',

.github/workflows/build.yml

@@ -0,0 +1,90 @@
+name: Build
+
+on:
+  push:
+    branches: main
+  pull_request:
+    branches: '*'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+
+    - name: Base Setup
+      uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+
+    - name: Install dependencies
+      run: python -m pip install -U "jupyterlab>=4.0.0,<5"
+
+    - name: Lint the extension
+      run: |
+        set -eux
+        jlpm
+        jlpm run lint:check
+
+    - name: Build the extension
+      run: |
+        set -eux
+        python -m pip install .[test]
+
+        jupyter labextension list
+        jupyter labextension list 2>&1 | grep -ie "@pyviz/jupyterlab_pyviz.*OK"
+        python -m jupyterlab.browser_check
+
+    - name: Package the extension
+      run: |
+        set -eux
+
+        pip install build
+        python -m build
+        pip uninstall -y "pyviz_comms" jupyterlab
+
+    - name: Upload extension packages
+      uses: actions/upload-artifact@v3
+      with:
+        name: extension-artifacts
+        path: dist/pyviz_comms*
+        if-no-files-found: error
+
+  test_isolated:
+    needs: build
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+    - name: Install Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: '3.9'
+        architecture: 'x64'
+    - uses: actions/download-artifact@v3
+      with:
+        name: extension-artifacts
+    - name: Install and Test
+      run: |
+        set -eux
+        # Remove NodeJS, twice to take care of system and locally installed node versions.
+        sudo rm -rf $(which node)
+        sudo rm -rf $(which node)
+
+        pip install "jupyterlab>=4.0.0,<5" pyviz_comms*.whl
+
+
+        jupyter labextension list
+        jupyter labextension list 2>&1 | grep -ie "@pyviz/jupyterlab_pyviz.*OK"
+        python -m jupyterlab.browser_check --no-browser-test
+
+
+  check_links:
+    name: Check Links
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - uses: actions/checkout@v3
+      - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+      - uses: jupyterlab/maintainer-tools/.github/actions/check-links@v1

.github/workflows/check-release.yml

@@ -0,0 +1,29 @@
+name: Check Release
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["*"]
+
+jobs:
+  check_release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Base Setup
+        uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+      - name: Install Dependencies
+        run: |
+          pip install -e .
+      - name: Check Release
+        uses: jupyter-server/jupyter_releaser/.github/actions/check-release@v2
+        with:
+
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Upload Distributions
+        uses: actions/upload-artifact@v3
+        with:
+          name: pyviz_comms-releaser-dist-${{ github.run_number }}
+          path: .jupyter_releaser_checkout/dist

.github/workflows/enforce-label.yml

@@ -0,0 +1,13 @@
+name: Enforce PR label
+
+on:
+  pull_request:
+    types: [labeled, unlabeled, opened, edited, synchronize]
+jobs:
+  enforce-label:
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+    steps:
+      - name: enforce-triage-label
+        uses: jupyterlab/maintainer-tools/.github/actions/enforce-label@v1

.github/workflows/prep-release.yml

@@ -0,0 +1,41 @@
+name: "Step 1: Prep Release"
+on:
+  workflow_dispatch:
+    inputs:
+      version_spec:
+        description: "New Version Specifier"
+        default: "next"
+        required: false
+      branch:
+        description: "The branch to target"
+        required: false
+      post_version_spec:
+        description: "Post Version Specifier"
+        required: false
+      since:
+        description: "Use PRs with activity since this date or git reference"
+        required: false
+      since_last_stable:
+        description: "Use PRs with activity since the last stable git tag"
+        required: false
+        type: boolean
+jobs:
+  prep_release:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+
+      - name: Prep Release
+        id: prep-release
+        uses: jupyter-server/jupyter_releaser/.github/actions/prep-release@v2
+        with:
+          token: ${{ secrets.ADMIN_GITHUB_TOKEN }}
+          version_spec: ${{ github.event.inputs.version_spec }}
+          post_version_spec: ${{ github.event.inputs.post_version_spec }}
+          branch: ${{ github.event.inputs.branch }}
+          since: ${{ github.event.inputs.since }}
+          since_last_stable: ${{ github.event.inputs.since_last_stable }}
+
+      - name: "** Next Step **"
+        run: |
+          echo "Optional): Review Draft Release: ${{ steps.prep-release.outputs.release_url }}"

.github/workflows/publish-release.yml

@@ -0,0 +1,57 @@
+name: "Step 2: Publish Release"
+on:
+  workflow_dispatch:
+    inputs:
+      branch:
+        description: "The target branch"
+        required: false
+      release_url:
+        description: "The URL of the draft GitHub release"
+        required: false
+      steps_to_skip:
+        description: "Comma separated list of steps to skip"
+        required: false
+
+jobs:
+  publish_release:
+    runs-on: ubuntu-latest
+    permissions:
+      # This is useful if you want to use PyPI trusted publisher
+      # and NPM provenance
+      id-token: write
+    steps:
+      - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+
+      - name: Populate Release
+        id: populate-release
+        uses: jupyter-server/jupyter_releaser/.github/actions/populate-release@v2
+        with:
+          token: ${{ secrets.ADMIN_GITHUB_TOKEN }}
+          branch: ${{ github.event.inputs.branch }}
+          release_url: ${{ github.event.inputs.release_url }}
+          steps_to_skip: ${{ github.event.inputs.steps_to_skip }}
+
+      - name: Finalize Release
+        id: finalize-release
+        env:
+          # The following are needed if you use legacy PyPI set up
+          # PYPI_TOKEN: ${{ secrets.PYPI_TOKEN }}
+          # PYPI_TOKEN_MAP: ${{ secrets.PYPI_TOKEN_MAP }}
+          # TWINE_USERNAME: __token__
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+        uses: jupyter-server/jupyter-releaser/.github/actions/finalize-release@v2
+        with:
+          token: ${{ secrets.ADMIN_GITHUB_TOKEN }}
+          release_url: ${{ steps.populate-release.outputs.release_url }}
+
+      - name: "** Next Step **"
+        if: ${{ success() }}
+        run: |
+          echo "Verify the final release"
+          echo ${{ steps.finalize-release.outputs.release_url }}
+
+      - name: "** Failure Message **"
+        if: ${{ failure() }}
+        run: |
+          echo "Failed to Publish the Draft Release Url:"
+          echo ${{ steps.populate-release.outputs.release_url }}

.github/workflows/test.yaml

@@ -17,28 +17,19 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11']
     steps:
     - name: Checkout
       uses: actions/checkout@v3
-    - name: Install node
-      uses: actions/setup-node@v3
-      with:
-       node-version: 16
-    - name: Install Python
-      uses: actions/setup-python@v4
-      with:
-        python-version: ${{ matrix.python-version }}
-        architecture: x64
+    - name: Base Setup
+      uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        python -m pip install "jupyterlab~=3.0" "jupyter_packaging~=0.7.9" "wheel" 
+        python -m pip install "jupyterlab~=4.0" "wheel"
     - name: Build the extension
       run: |
-        jlpm
-        jlpm run eslint:check
-        python -m pip install .[tests] --no-build-isolation
+        python -m pip install ".[tests]"
     - name: Check extension
       run: |
         jupyter labextension list 2>&1 | grep -ie "jupyterlab_pyviz.*OK"