README.md

GitHub Actions YAML

• .github/workflows/danger.yml
  • demonstrates how to use Danger.
• .github/workflows/firebase-and-slack.yml
  • demonstrates how to use:
    • Firebase Test Lab
    • Firebase App Distribution
    • Slack

Preparation

for Danger

No preparation is required unless you want to use a bot account. If you want to use a bot account, follow the instructions below.

1. Create a bot account on GitHub.
2. Add the bot account to the repository as a collaborator.
3. Create the bot account's personal access token that has full access to repo.
4. Add the token to GitHub Secrets as DANGER_GITHUB_API_TOKEN.

for Firebase Test Lab

1. Copy your Firebase Project ID from Firebase Console, and add it to GitHub Secrets as FIREBASE_PROJECT_ID.
2. Create a service account with an Editor role at https://console.developers.google.com/iam-admin/serviceaccounts
   • cf. https://firebase.google.com/docs/test-lab/android/continuous)
3. Download a private key for the service account as JSON.
4. Encode it in Base64 in your favorite way. For example:

cat <private-key>.json | base64

5. Add the encoded string to GitHub Secrets as SERVICE_ACCOUNT_KEY_BASE64.

for Firebase App Distribution

1. Copy your Firebase app ID from Firebase Console, and add it to GitHub Secrets as FIREBASE_APP_ID.
2. Install Firebase CLI on your computer.
3. Run firebase login:ci on Terminal/Console, and a Firebase token will be printed.
   • cf. https://firebase.google.com/docs/cli
4. Add the token to GitHub Secrets as FIREBASE_TOKEN.

for Slack

1. Go to https://slack.com/apps/A0F7XDUAZ-incoming-webhooks
2. Add Incoming Webhooks
3. Integration Settings > Post to Channel > (select a channel)
4. Copy Webhook URL.
5. Paste it in GitHub Secrets. I name it SLACK_WEBHOOK_URL.

Appendix (optional)

How to use google-services.json securely in a public repository

1. Download google-services.json from Firebase Console.
2. Copy the raw content (without being encoded in Base64) to GitHub Secrets as, let's say, GOOGLE_SERVICES_JSON.
3. Add the following to your workflow.

- run: echo $GOOGLE_SERVICES_JSON > app/google-services.json
  env:
    GOOGLE_SERVICES_JSON: ${{ secrets.GOOGLE_SERVICES_JSON }}