I have this debug code in root/build.gradle:

task copyJenkinsIdea(type: Copy) {
    onlyIf {
        project.hasProperty("isJenkins")
    }
    doLast {
        println "Do Jenkins-specific setup" 
        println "${project.hasProperty("isJenkins")} && ${isJenkins} = ${(project.hasProperty("isJenkins") && isJenkins)}"
        println "${project.hasProperty("isJenkins")} && ${project.isJenkins} = ${(project.hasProperty("isJenkins") && project.isJenkins)}"
        println "true && false = ${(true && false)}"
    }
        from ".idea/Jenkins"
        into ".idea"
    
}

I run it with this command:

./gradlew --console=verbose -PisJenkins=false assembleDebug

Task dependency in root/app/build.gradle

preBuild.dependsOn(":copyJenkinsIdea")

And it gives me this output:

> Configure project :app
[snip]

> Task :copyJenkinsIdea
Do Jenkins-specific setup
true && false = true
true && false = true
true && false = false

The property is not present in the gradle.properties file.

I've got to be missing something, because this is impossible.

CodePudding user response：

Turns out, Groovy can't know that the property being passed in is a boolean. It's doing

class java.lang.Boolean && class java.lang.String
true && "false"

Which is, in fact, true.