Use keystore.properties file for signing bundles

Is your feature request related to a problem? Please describe.

I have a step in my CI build which uses the command build-apks. In my case these .apk files need to be signed. For this project, we have a file keystore.properties in a format like this.

With this approach, it is difficult to pass these values to bundletool.

Describe the solution you’d like

I would like to pass a single flag like --keystore-properties=keystore.properties, to set all of the signing parameters at once.

Describe alternatives you’ve considered I made a gradle task which extracts the value for each field from keystore.properties, and saves each property them into a new file. These files are then copied to variables in fastlane, so that they can be passed back to bundletool

[plecesne]

Since this is a new flag, I think that’s fine.

[HughIngram]

I’m interested in contributing. I have been looking through the code, and I found this note in BuildApksCommand.java:

  // Signing-related flags: should match flags from apksig library.
  private static final Flag<Path> KEYSTORE_FLAG = Flag.path("ks");
  private static final Flag<String> KEY_ALIAS_FLAG = Flag.string("ks-key-alias");
  private static final Flag<Password> KEYSTORE_PASSWORD = Flag.password("ks-pass");
  private static final Flag<Password> KEY_PASSWORD = Flag.password("key-pass");

So adding a new flag here would mean that bundletool won’t match apksig exactly. What do you think @plecesne?