build.gradle

/*
 * Master Gradle build script
 *
 * Depends on bndPlugin property set by settings.gradle.
 * and bnd_* values from gradle.properties.
 */

import aQute.bnd.build.Workspace
import aQute.bnd.osgi.Constants

/* Add bnd gradle plugin as a script dependency */
buildscript {
  dependencies {
    classpath bndPlugin
  }
}

/* Initialize the bnd workspace */
Workspace.setDriver(Constants.BNDDRIVER_GRADLE)
Workspace.addGestalt(Constants.GESTALT_BATCH, null)
ext.bndWorkspace = new Workspace(rootDir, bnd_cnf)
if (bndWorkspace == null) {
  throw new GradleException("Unable to load workspace ${rootDir}/${bnd_cnf}")
}

ext.cnf = rootProject.project(bnd_cnf)


def runCommand(String[] args) {
 new ByteArrayOutputStream().withStream { os ->
  def result = exec {
   commandLine = args
   standardOutput = os
  }
  return os.toString().trim()
 }
}

ext {
	cnf = rootProject.project(bnd_cnf)
	os = System.env.OS ?: runCommand('uname', '-s')
	arch = System.env.ARCH ?: runCommand('uname', '-m')
	osgi_os = os.replaceFirst(/^Darwin/, "MacOSX")
	osgi_arch = arch.replaceFirst(/(?i)arm(.*)/,"ARM")
	extension = (os == "Darwin") ? 'dylib' : 'so'
}

/* Configure the subprojects */
subprojects {
  def bndProject = bndWorkspace.getProject(name)
  if (bndProject != null) {
    plugins.apply 'biz.aQute.bnd'
  
  
    task("cleanAll", description: "Clean all code including all (sub)native libraries.", group: 'build') {}
	cleanAll.dependsOn(clean)

	fileTree(projectDir) {
		include 'jni/Makefile'
	}.each { File file ->
		logger.info "Found Makefile in jni folder: {}", file.absolutePath
		task("buildNative", type: Exec, description: "Build native code", group: "build") {
			def outputExtentions = ["*.o","*.dylib","*.so","*.a", "*_*.h"]
			inputs.files compileJava
			inputs.files fileTree(dir: file.parent, excludes: outputExtentions)
			outputs.dir "$projectDir/native/$os/$arch"
			outputs.files fileTree(dir: file.parent, includes: outputExtentions)
			workingDir file.parent
			commandLine "make"
		}
		jar.dependsOn("buildNative")
		
		task("cleanNative", type: Exec, description: "Clean dynamic libraries.", group: 'build') {
			workingDir file.parent
			commandLine "make", "clean"
			standardOutput = new ByteArrayOutputStream()
		}
		clean.dependsOn("cleanNative")
		
		task("cleanAllNative", type: Exec, description: "Clean all native code including sub projects.", group: 'build') {
			workingDir file.parent
			commandLine "make", "cleanall"
			standardOutput = new ByteArrayOutputStream()
		}
		cleanAll.dependsOn("cleanAllNative")
	}
  }     
}