Update to JupyterLab 4

.copier-answers.yml

@@ -0,0 +1,15 @@
+# Changes here will be overwritten by Copier; NEVER EDIT MANUALLY
+_commit: v4.1.0
+_src_path: https://github.com/jupyterlab/extension-template
+author_email: <author_email>
+author_name: Vidar Tonaas Fauske
+has_binder: true
+has_settings: false
+kind: frontend
+labextension_name: jupyterlab-kernelspy
+project_short_description: A Jupyter Lab extension for inspecting messages to/from
+    a kernel
+python_name: jupyterlab_kernelspy
+repository: https://github.com/jupyterlab-contrib/jupyterlab-kernelspy.git
+test: false
+

.github/workflows/binder-on-pr.yml

@@ -0,0 +1,14 @@
+name: Binder Badge
+on:
+  pull_request_target:
+    types: [opened]
+
+jobs:
+  binder:
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+    steps:
+      - uses: jupyterlab/maintainer-tools/.github/actions/binder-link@v1
+        with:
+          github_token: ${{ secrets.github_token }}

.github/workflows/build.yml

@@ -9,88 +9,80 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
+
     steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-      - name: Install node
-        uses: actions/setup-node@v1
-        with:
-          node-version: '14.x'
-      - name: Install Python
-        uses: actions/setup-python@v2
-        with:
-          python-version: '3.9'
-          architecture: 'x64'
-
-      - name: Setup pip cache
-        uses: actions/cache@v2
-        with:
-          path: ~/.cache/pip
-          key: pip-3.8-${{ hashFiles('package.json') }}
-          restore-keys: |
-            pip-3.8-
-            pip-
-
-      - name: Get yarn cache directory path
-        id: yarn-cache-dir-path
-        run: echo "::set-output name=dir::$(yarn cache dir)"
-      - name: Setup yarn cache
-        uses: actions/cache@v2
-        id: yarn-cache # use this to check for `cache-hit` (`steps.yarn-cache.outputs.cache-hit != 'true'`)
-        with:
-          path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
-          key: yarn-${{ hashFiles('**/yarn.lock') }}
-          restore-keys: |
-            yarn-
-      - name: Install dependencies
-        run: python -m pip install jupyterlab~=3.0 check-manifest
-      - name: Build the extension
-        run: |
-          jlpm
-          jlpm run eslint:check
-          python -m pip install .
-
-          jupyter labextension list 2>&1 | grep -ie "jupyterlab-kernelspy.*OK"
-          python -m jupyterlab.browser_check
-
-      - name: Build package
-        run: |
-          set -eux
-          check-manifest -v
-
-          pip install build
-          python -m build --sdist
-          cp dist/*.tar.gz myextension.tar.gz
-          pip uninstall -y myextension jupyterlab
-          rm -rf myextension
-
-      - uses: actions/upload-artifact@v2
-        with:
-          name: myextension-sdist
-          path: myextension.tar.gz
+    - 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 "jupyterlab-kernelspy.*OK"
+        python -m jupyterlab.browser_check
+
+    - name: Package the extension
+      run: |
+        set -eux
+
+        pip install build
+        python -m build
+        pip uninstall -y "jupyterlab_kernelspy" jupyterlab
+
+    - name: Upload extension packages
+      uses: actions/upload-artifact@v3
+      with:
+        name: extension-artifacts
+        path: dist/jupyterlab_kernelspy*
+        if-no-files-found: error
 
   test_isolated:
     needs: build
     runs-on: ubuntu-latest
 
     steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-      - name: Install Python
-        uses: actions/setup-python@v2
-        with:
-          python-version: '3.8'
-          architecture: 'x64'
-      - uses: actions/download-artifact@v2
-        with:
-          name: myextension-sdist
-      - 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 myextension.tar.gz
-          pip install jupyterlab
-          jupyter labextension list 2>&1 | grep -ie "jupyterlab-kernelspy.*OK"
-          python -m jupyterlab.browser_check --no-chrome-test
+    - 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" jupyterlab_kernelspy*.whl
+
+
+        jupyter labextension list
+        jupyter labextension list 2>&1 | grep -ie "jupyterlab-kernelspy.*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: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Upload Distributions
+        uses: actions/upload-artifact@v3
+        with:
+          name: jupyterlab_kernelspy-releaser-dist-${{ 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 }}"