Add CI workflow to test the release scripts

.github/workflows/buildutils.yml

@@ -0,0 +1,41 @@
+name: Build Utilities
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: '*'
+
+defaults:
+  run:
+    shell: bash -l {0}
+
+jobs:
+  scripts:
+    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: Install dependencies
+      run: |
+        python -m pip install -U jupyterlab~=3.0 jupyter_packaging~=0.7.9 pip
+        jlpm
+        jlpm run build
+    - name: Patch Release
+      run: |
+        jlpm release:patch --force
+    - name: Minor Release
+      run: |
+        jlpm release:bump minor --force
+    - name: Major Release
+      run: |
+        jlpm release:bump major --force

package.json

@@ -21,7 +21,6 @@
     "build": "lerna run build",
     "build:prod": "lerna run build:prod",
     "build:test": "lerna run build:test",
-    "bumpversion": "node ./node_modules/@jupyterlab/buildutils/lib/bumpversion.js",
     "clean": "lerna run clean",
     "eslint": "eslint . --ext .ts,.tsx --fix",
     "eslint:check": "eslint . --ext .ts,.tsx",
@@ -29,6 +28,7 @@
     "prettier": "prettier --write \"**/*{.ts,.tsx,.js,.jsx,.css,.json,.md}\"",
     "prettier:check": "prettier --list-different \"**/*{.ts,.tsx,.js,.jsx,.css,.json,.md}\"",
     "publish": "yarn run clean && yarn run build && lerna publish",
+    "release:bump": "node ./buildutils/lib/release-bump.js",
     "release:patch": "node ./buildutils/lib/release-patch.js",
     "test": "lerna run test",
     "update:dependency": "node ./node_modules/@jupyterlab/buildutils/lib/update-dependency.js --lerna"