I have a project where I must set a certain SystemProperty before I begin my build task. However, the value for it varies every day.

As it stands, once the build task starts, I can no longer edit this property in a meaningful way (as the override gets ignored). As such, I’d like to do it beforehand.

To fetch the latest value for this property, I have code for an API call and will be extracting the value from the response.

This API call is within a Java class called “CallApi.java” within my “src/test/java” directory, under “com.test” package

I have it set up so that the function within CallApi.java returns a String, which I plan on setting as the value of the SystemProperty, before beginning execution.

My thought process is that if I can define a custom task to fetch the latest value for this property, then I can set it in the build.gradle directly using the “systemProperty” command as such:

systemProperty ‘placeholder’, customTask

then have Gradle execute the clean and build tasks.

Is this possible? If not, is there an alternate way to achieve this?

P.S.
I’ve tried this approach

import com.test.CallApi

task callApi {
    doLast {
        CallApi.getPropValue()
    }
}

with the getPropValue() function returning mock String data, but the import statement doesn’t resolve