ci: add release-please (#9)

.github/workflows/release.yml

@@ -0,0 +1,33 @@
+name: release-please
+on:
+  push:
+    branches:
+      - main
+permissions:
+  contents: write
+  pull-requests: write
+jobs:
+  release-please:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: google-github-actions/release-please-action@v4
+        id: release
+        with:
+          config-file: release-please-config.json
+          manifest-file: .release-please-manifest.json
+      # The logic below handles the npm publication:
+      - uses: actions/checkout@v4
+        # these if statements ensure that a publication only occurs when
+        # a new release is created:
+        if: ${{ steps.release.outputs.release_created }}
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          registry-url: 'https://registry.npmjs.org'
+        if: ${{ steps.release.outputs.release_created }}
+      - run: npm ci
+        if: ${{ steps.release.outputs.release_created }}
+      - run: npm run publish
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+        if: ${{ steps.release.outputs.release_created }}

.release-please-manifest.json

@@ -0,0 +1,3 @@
+{
+    ".": "0.2.0"
+}

release-please-config.json

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+{
+    "packages": {
+        ".": {
+            "bump-minor-pre-major": true
+        }
+    }
+}