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generate_a_release_build_for_local_testing.md

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Generate a release build for local testing

Why?

Sometimes we need to test a release build on the emulator or our local device, without generating a new beta build. One example is when we want to test for optimizations, eg. when we turn on hermes.

iOS

  • Start the packager with yarn start.
  • In another terminal, run yarn bundle:ios to generate the jsbundle.
  • Run yarn pod-install, so that the jsbundle is added to your build.
  • Open the project in Xcode using open ios/Artsy.xcworkspace.
  • Select the Artsy (Store) scheme from the top bar.
  • Tapping on the top item Artsy on the navigator left sidebar, then you will see the targets exactly to the right of that sidebar. Go to all targets and enable the Automatically manage signing checkbox, and select the Art.sy Inc. team. Go through all except ArtsyTests, click them, and on the right you go to Signing & Capabilities tab, and you will see the checkbox.
  • Do not commit these changes. Just reset them when you're done.
  • Press play, and wait for the app to start on your simulator or your device.

Android

  • Download the release.keystore from 1Password (named Eigen release keystore password and secret json (google play store) - release.keystore), and put it at eigen/android/app/release.keystore.
  • Start the packager with yarn start.
  • You will need the ANDROID_KEYSTORE_PASSWORD from 1Password, so have it handy. It will be in the item named Eigen release keystore password and secret json (google play store).
  • First place you will need it is right now. In your terminal, run export ANDROID_KEYSTORE_PASSWORD=<the password>, replacing <the password> with the password from 1Password. The final command will look something like export ANDROID_KEYSTORE_PASSWORD=some-password-wow-123, no math signs <>.
  • Uninstall the app from the emulator if it's already installed. This is needed because it's differently signed for debug and for release, and the emulator can't replace them automatically.
  • In the same terminal, build the release app using cd android; ./gradlew installRelease.
  • Verify that the built app is in eigen/android/app/build/outputs/apk/release/app-release.apk.
  • The app should already be installed on the emulator now. If not, install it by dragging it on the emulator.