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Turtle CLI usage example

This is just a simple Expo app (generated with expo init command, expo-template-tabs template) that uses CircleCI and Travis CI to build Expo standalone apps (for Android and iOS). It demonstrates how to leverage turtle-cli to build .apk/.ipa files without the need to use the Expo servers.

Issues

If you have problems with the code in this repository, please file issues & bug reports at https://github.com/expo/turtle/issues. Thanks!

CI pipelines

The CI pipelines consist of two stages. In the first stage we publish the Expo project to the Expo servers using the expo publish command (see Publishing to learn more, if you would like to host your app on your own server, see this guide). In the second stage we build application binaries for:

  • Google Play Store - .apk file
  • Apple App Store - .ipa file
  • iOS simulator - in .tar.gz archive

Providing credentials for your app

In order to successfully reuse CI configuration files, you have to set some environment variables first:

  • common for all jobs (you don't need to set these if you pass the --public-url parameter to the build command)
    • EXPO_USERNAME - your Expo account username
    • EXPO_PASSWORD - your Expo account password
  • Android-specific. You can obtain these values from Expo servers by running expo fetch:android:keystore in your Expo project's directory.
    • EXPO_ANDROID_KEYSTORE_BASE64 - base64-encoded Android keystore
    • EXPO_ANDROID_KEYSTORE_ALIAS - Android keystore alias
    • EXPO_ANDROID_KEYSTORE_PASSWORD - Android keystore password
    • EXPO_ANDROID_KEY_PASSWORD - Android key password
  • iOS-specific. You can obtain these values from Expo servers by running expo fetch:ios:certs in your Expo project's directory.
    • EXPO_APPLE_TEAM_ID - Apple Team ID - (a 10-character string like "Q2DBWS92CA")
    • EXPO_IOS_DIST_P12_BASE64 - base64-encoded iOS Distribution Certificate
    • EXPO_IOS_DIST_P12_PASSWORD - iOS Distribution Certificate password
    • EXPO_IOS_PROVISIONING_PROFILE_BASE64 - base64-encoded iOS Provisioning Profile

On macOS, you can base64-encode the contents of a file and copy the string to the clipboard by running base64 some-file | pbcopy in a terminal.

CircleCI

CircleCI

CircleCI configuration file: .circleci/config.yml

  • See how to set environment variables. You'll need to define all of the environment variables described above.
  • The APK and IPA files are uploaded as build artifacts stored by CircleCI.

Upgrading your app

When you upgrade the Expo SDK version in your app, you should also modify the following section in .circleci/config.yml and update the turtle-cli version to the latest (the update is required to get a support for the new Expo SDK version!):

android:
  # WARNING: medium (default) seems not to be enough for Turtle
  resource_class: xlarge
  docker:
    # https://github.com/expo/expo-turtle-android
    - image: dsokal/expo-turtle-android
  working_directory: ~/expo-project
  environment:
    TURTLE_VERSION: 0.12.10 # <<< PUT THE LATEST TURTLE-CLI VERSION HERE
    PLATFORM: android
    YARN_CACHE_FOLDER: ~/yarn_cache

ios:
  macos:
    xcode: 10.1.0
  working_directory: ~/expo-project
  environment:
    TURTLE_VERSION: 0.12.10 # <<< PUT THE LATEST TURTLE-CLI VERSION HERE
    PLATFORM: ios
    YARN_CACHE_FOLDER: /Users/distiller/yarn_cache
    HOMEBREW_NO_AUTO_UPDATE: 1

Docker image for Android builds

The Android executor uses dsokal/expo-turtle-android Docker Image. The image is based on circleci/node:8.12 and has JDK 8 installed. See the expo/expo-turtle-android repository to learn more.

Travis CI

Build Status

Travis CI configuration file: .travis.yml

  • See how to set environment variables. You'll need to define all of the environment variables described above.
  • The APK and IPA files are build artifacts uploaded to your own AWS S3 bucket. You'll have to set additional environment variables:
    • AWS_ACCESS_KEY_ID - your AWS Access Key
    • AWS_SECRET_ACCESS_KEY - your AWS Secret Access Key
    • AWS_BUCKET - name of the bucket
    • AWS_REGION - region of the bucket

Upgrading your app

When you upgrade the Expo SDK version in your app, you should also modify the following section in .travis.yml:

env:
  global:
    - EXPO_SDK_VERSION="32.0.0" # <<< PUT EXPO SDK VERSION HERE
    - TURTLE_VERSION="0.12.10"    # <<< PUT THE LATEST TURTLE-CLI VERSION HERE
    - YARN_VERSION="1.10.1"

Learn more

See Building Standalone Apps on Your CI to learn more.