Move app ID and app version configuration out of build.properties

[wkurniawan07]

Current: app ID and app version are configured via build.properties.

Problem:
While not necessarily a problem, this is a practice that is no longer justifiable because the system is already decoupled from App Engine since V8.0.0. App ID and version are deployment-specific metadata whose values should be set outside of (non-deployment) code.

Solution:

• App ID and app version are only relevant for deployment; they should thus be moved to gradle.properties, so that the values can be retrieved by the deployment script.
• If any of those values are required within the application, they should be obtained by retrieving GOOGLE_CLOUD_PROJECT and GAE_VERSION from the environment. In dev server they should be hard-coded to some suitable values.
• If any of those values are required by E2E tests or client scripts, it is a wrong practice that should be fixed. The necessary values should be retrieved from another source, e.g. test.properties for the former and client.properties for the latter.

[u6867511]

Hello, could I be assigned to this issue?

[fsgmhoward]

@u6867511 Sure. Please go ahead since no one is taking up this. But be reminded that you should probably focus on 1 or 2 issues and solve them before taking new ones as I saw your comment in many issues.

[Divyansh9979]

Hi, is this issue still open? If yes, can I be assigned to this issue?

[domlimm]

@Divyansh9979 Hello, feel free to submit a PR for this issue. We do not assign issues to contributors.

[anii1827]

Hi, I would like to work on this issue. is this issue still open?

[weiquu]

Sure @anii1827, please go ahead

[anii1827]

In the context of point number 2, for a production server, the version and app ID should be obtained by retrieving values from the environment variables GOOGLE_CLOUD_PROJECT and GAE_VERSION.
To obtain these values from the environment, it is essential to know the corresponding variable names. Therefore, can we consider using the following variable names to fetch the values for those fields:

1. APP_ID = GOOGLE_CLOUD_PROJECT
2. APP_VERSION = GAE_VERSION

or, are there any other variables that should be considered for obtaining these details in a production environment?

[weiquu]

Pinging @wkurniawan07 (or @damithc), who will be more familiar with the prod env

[anii1827]

sure!

[weiquu]

@wkurniawan07 just checking if you're able to help with this issue!

[anii1827]

@weiquu any update?