Adds jobs for publishing npm packages

.github/actions/publish-npm/action.yaml

@@ -0,0 +1,28 @@
+name: 'Publishes package to npm registry'
+
+inputs:
+  project-name:
+    description: 'Name of gradle project to test'
+    required: true
+
+runs:
+  using: 'composite'
+  steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+
+    - name: Setup antlr4
+      uses: ./.github/actions/setup-antlr4
+
+    - name: Install dependencies with frozen lock file and generate parser
+      run: npm ci
+
+    - name: Build project
+      run: npm run build
+
+    - name: Publish on updated version number
+      uses: JS-DevTools/npm-publish@v2
+      with:
+        token: ${{ secrets.NPM_TOKEN }}
+        package: 'packages/${{inputs.project-name}}/package.json'
+        access: 'public'

.github/workflows/publish-packages.yaml

@@ -0,0 +1,27 @@
+name: Publish react-codemirror package to npm
+
+on:
+  # Runs on pushes targeting the default branch
+  # push:
+  #   branches: ['main']
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+env:
+  NODE_OPTIONS: '--max_old_space_size=4096'
+
+jobs:
+  publish:
+    strategy:
+      fail-fast: false
+      matrix:
+        project: ['language-support', 'language-server', 'react-codemirror']
+
+    environment: publish-npm
+    runs-on: ubuntu-latest
+    steps:
+      - name: Publish ${{ matrix.project }} to npm
+        uses: ./.github/actions/publish-npm
+        with:
+          project-name: ${{ matrix.project }}