chore: add workflow that tests if tarball is installable

.github/workflows/npm-pack-check.yml

@@ -0,0 +1,42 @@
+name: NPM pack check
+on:
+  pull_request:
+    branches:
+      - master
+jobs:
+  npm-pack-check:
+    runs-on: ubuntu-latest
+    # Only run this job if the PR is from a trusted collaborator (i.e. not a fork)
+    if: github.event.pull_request.head.repo.full_name == github.repository
+    steps:
+      # Checkout project repository
+      - name: Checkout
+        uses: actions/[email protected]
+
+      # Setup Node.js environment
+      - name: Setup Node.js
+        uses: actions/setup-node@v3
+        with:
+          registry-url: https://registry.npmjs.org/
+          node-version: 20
+
+      # Install dependencies so that prepublish scripts work as expected
+      - name: Install deps
+        run: npm i
+
+      - name: Build package
+        run: npm run build
+
+      - name: Create test install directory
+        run: mkdir ../test-install
+
+      # Pack the package and move it to the test install directory, then
+      # install it and ensure that it can be "required"
+      - name: Ensure pack file can be installed
+        run: |
+          export PACK_FILENAME=$(npm pack --json | jq -r '.[] | .filename')
+          mv $PACK_FILENAME ../test-install/
+          mv test/npm-pack.js ../test-install/
+          cd ../test-install
+          npm install $PACK_FILENAME
+          node npm-pack.js

.github/workflows/publish-beta.yml

@@ -20,7 +20,7 @@ jobs:
         uses: actions/setup-node@v3
         with:
           registry-url: https://registry.npmjs.org/
-          node-version: 16
+          node-version: 20
 
       # Use a cache for dependencies
       - uses: actions/[email protected]

test/npm-pack.js

@@ -0,0 +1,12 @@
+/**
+ * This is a simple test script that checks that the package can be required and
+ * that the setup export is defined.
+ * This script is used in the `npm-pack-check` GitHub workflow.
+ */
+const yates = require("@cerebruminc/yates");
+
+if (typeof yates.setup === "undefined") {
+	throw new Error("setup export is undefined");
+}
+
+console.log("Success!");