publish to expo on PRs

Author: DaniAkash

.github/workflows/review.yml

@@ -58,3 +58,25 @@ jobs:
         working-directory: example
         env:
           CHROMATIC_PROJECT_TOKEN: ${{ secrets.CHROMATIC_PROJECT_TOKEN }}
+
+  expo-publish:
+    name: Publish to Expo 🚀
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v1
+        with:
+          node-version: 12.x
+      - uses: expo/expo-github-action@v5
+        with:
+          expo-version: 3.x
+          expo-username: ${{ secrets.EXPO_CLI_USERNAME }}
+          expo-password: ${{ secrets.EXPO_CLI_PASSWORD }}
+      - run: npx yarn bootstrap
+      - run: expo publish --release-channel=pr-${{ github.event.number }}
+        working-directory: example
+      - uses: unsplash/comment-on-pr@master
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          msg: App is ready for review, you can [see it here](https://expo.io/@daniakash/use-expo?release-channel=pr-${{ github.event.number }}).