Using Gradle with native dependencies

Question

I am trying to use Sigar in a Gradle project. Sigar distribution is by default provided with 2 types of files:

• a JAR that contains classes
• some native

Answer 1

A solution is to define a new gradle configuration that unzips JAR files at the desired location:

project.ext.set('nativeLibsDir', "$buildDir/libs/natives")

configurations {
    nativeBundle
}

dependencies {
    nativeBundle 'sigar:sigar:1.6.4:native'
}

task extractNativeBundle(type: Sync) {
    from {
        configurations.nativeBundle.collect { zipTree(it) }
    }
    into file(project.nativeLibsDir)
}

dist.dependsOn extractNativeBundle

Then, this location must be put in java.library.path for tasks that depend on native libraries:

systemProperty "java.library.path", project.nativeLibsDir