ScriptCraft/examples/typescript/typescript.build.gradle

def typescriptRoot = 'src/main/ts'
def typescriptRootFile = new File(rootDir.absolutePath, typescriptRoot)

def typescriptOut = new File(typescriptRootFile, 'lib/ts')

def nodeModules = new File(typescriptRoot, 'node_modules')

task typescriptInstall(group: 'typescript', type: Exec) {
    inputs.file new File(typescriptRootFile, 'package.json')
    outputs.dir nodeModules

    workingDir typescriptRootFile

    executable 'npm'

    args 'install'

    doFirst {
        project.delete {
            delete nodeModules
        }
    }
}

task typescript(group: 'typescript', type: Exec) {
    inputs.dir typescriptRootFile
    outputs.dirs typescriptOut

    workingDir typescriptRootFile

    executable 'npm'

    args 'run', 'build'

    doFirst {
        project.delete {
            delete typescriptOut
        }
    }
}

typescript.dependsOn typescriptInstall

processResources.dependsOn typescript

processResources {
    from(typescriptOut.absolutePath) {
        into 'scriptcraft'
    }
}