Custom Configurable SourceSets

Old Forum
1

Hello, I’m looking for way to make my SourceSets dynamically configurable, here is the situation: Imagine that I create in “gradle.properties” some Lists where I define my sources:

gradle.properties:

SimpleVersion=[source1,source2...sourceN]
UxVersion=[source1_UX,source2_UX...sourceN_UX]

Now suppose that I use a flag to select which version whether -Pflag=NormalVersion or -Pflag=UxVersion during the build call. Then as we know we going to apply “java plugin” and define the sourceSets:

sourceSets{
  Myproject{
    java.srcDirs=[
     ....
    ]
    output.classesDir=....
    compileClasspath=....
    runtimeClasspath= ...
    }
  unitTest{
   .....
  }
}

You might guess what is my question now: How to affect SourceSets.java.srcDirs to specific List of sources defined in gradle.properties and of course this depends on flag value? Thank you!!

2

I have almost found a solution: gradle.properties:

flag=UX
ClassicVersion=['backend','shared','dashboard_web','gwt_common','surveys-backend','widgety']
UXVersion=['backend','shared','dashboard_web_ux','gwt_common_ux','surveys-backend','widgety_ux']

build.gradle: 

sourceSets{
  myproject{
    if(!flag.compareTo('UX')){
      java.srcDirs=UXVersion
      }
    else{
      java.srcDirs=ClassicVersion
              }
    output.classesDir=...
    compileClasspath=....
    runtimeClasspath= ...
    }
  unitTest{
  .....
}
}

Well I haven’t found how to cast my Lists defined in gradle.properties to java.srcDirs:

* What went wrong:
A problem occurred evaluating root project 'Myproject.Gradle'.
> Cannot cast object '['backend','shared','dashboard_web_ux','gwt_common_ux','surveys-backend','widgety_ux']' with class 'java.lang.String' to class 'java.lang.Iterable'

any ideas please? Thank you!!

3

Property values you defined in gradle.properties are not Lists but Strings. You will need to parse them.

4

Thank you Marcin, Would you please provide some details? because I have never done a simple file parsing using Gradle. Thanks again!!

5

I think that would be easy to use string instead of Parser, Well here’s the solution: gradle.properties

flag='UX '
UXVersion=backend,shared,dashboard_web_ux,gwt_common_ux,surveys-backend,widgety_ux
ClassicVersion=backend,shared,dashboard_web,gwt_common,surveys-backend,widgety

build.gradle

sourceSets{
 Myproject{
    switch (flag.toString()){
      case 'UX':java.srcDirs=files(UXVersion.split(','))
        break
        default:
        java.srcDirs=java.srcDirs=files(ClassicVersion.split(','))
         break
    }
    }
  unitTest{
....
  }
}

Finally this works fine. But it’s doesn’t means that I still not interested in another solutions. Thank you very much!!