Add release workflow

Author: remcohaszing

.github/workflows/ci.yml

@@ -17,6 +17,20 @@ jobs:
       - run: npm ci
       - run: npx eslint .
 
+  pack:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 18
+      - run: npm ci
+      - run: npm pack
+      - uses: actions/upload-artifact@v3
+        with:
+          name: package
+          path: '*.tgz'
+
   test:
     runs-on: ubuntu-latest
     strategy:
@@ -52,3 +66,18 @@ jobs:
           node-version: 18
       - run: npm ci
       - run: npx tsc
+
+  release:
+    runs-on: ubuntu-latest
+    needs: [eslint, test, pack, prettier, tsc]
+    if: startsWith(github.ref, 'refs/tags/')
+    steps:
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 18
+          registry-url: https://registry.npmjs.org
+      - uses: actions/download-artifact@v3
+        with: { name: package }
+      - run: npm publish *.tgz
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}