Gradle - Add folder and contents to test resources - gradle

Question

I want to include a folder and its contents in the test resources for a Gradle project.
Let's say I have the following project structure:
projectRoot
| - src
| | - main
| | \ - java
| \ - test
| \ - java
\ - vars
\ - *.groovy files
The vars folder contains several *.groovy files that I want to be included in the test resources when the project is built. However, the test resources must include the vars folder, not just the contents inside that folder.
If I add the following block to my buid.gradle file, it only puts the contents of that folder in the test resources:
sourceSets {
test {
resources {
srcDir "vars"
}
}
}
This makes the build/resources/test directory contain the contents of the vars folder, but not the vars folder itself:
projectRoot
| - build
| \ - resources
| \ - test
| \ - *.groovy files
| - src
| | - main
| | \ - java
| \ - test
| \ - java
\ - vars
\ - *.groovy files
However, what I really am after is this:
projectRoot
| - build
| \ - resources
| \ - test
| \ - vars
| \ - *.groovy files
| - src
| | - main
| | \ - java
| \ - test
| \ - java
\ - vars
\ - *.groovy files
(Notice how the vars folder is listed in the build/resources/test folder)
How do I do this?
Note: I cannot make changes to the directory structure of the project (i.e. the vars folder cannot have any sub-directories, and it must be top level).

Answer 1

Perhaps something like this will work:
task copyConfig(type: Copy) {
from "${project.projectDir}/vars/*.*"
into "${project.projectDir}/.build/resources/test/vars"
dependsOn processTestResources
}
copyConfig.mustRunAfter(processTestResources)
testClasses.dependsOn copyConfig
testClasses.mustRunAfter copyConfig