build.gradle

plugins {
    id 'idea'
}

def projectNames = [
        'reactive-old-service',
        'reactive-service',
        'reactive-client',
]

['clean', 'assemble', 'test', 'build'].each { taskName ->
    tasks.create(taskName) { task ->
        projectNames.each { projectName ->
            dependsOn gradle.includedBuild(projectName).task(":$taskName")
        }
    }
}

// bootRun
projectNames.each { projectName ->

    def bootRunTaskName = 'bootRun'
    def taskName = projectName.replace('reactive', bootRunTaskName)

    tasks.create(taskName) { task ->
        dependsOn gradle.includedBuild(projectName).task(":$bootRunTaskName")
    }
}

task wrapper(type: Wrapper) {
    distributionType = 'BIN'
    gradleVersion = "4.10.2"
}