nativeimage.gradle

project(":lwjgl3") {
  apply plugin: "org.graalvm.buildtools.native"

  graalvmNative {
    binaries {
      main {
        imageName = appName
        mainClass = project.mainClassName
        requiredVersion = '23.0'
        buildArgs.add("-march=compatibility")
        jvmArgs.addAll("-Dfile.encoding=UTF8")
        sharedLibrary = false
        resources.autodetect()
      }
    }
  }

  run {
    doNotTrackState("Running the app should not be affected by Graal.")
  }

  // Modified from https://lyze.dev/2021/04/29/libGDX-Internal-Assets-List/ ; thanks again, Lyze!
  // This creates a resource-config.json file based on the contents of the assets folder (and the libGDX icons).
  // This file is used by Graal Native to embed those specific files.
  // This has to run before nativeCompile, so it runs at the start of an unrelated resource-handling command.
  generateResourcesConfigFile.doFirst {
    def assetsFolder = new File("${project.rootDir}/assets/")
    def lwjgl3 = project(':lwjgl3')
    def resFolder = new File("${lwjgl3.projectDir}/src/main/resources/META-INF/native-image/${lwjgl3.ext.appName}")
    resFolder.mkdirs()
    def resFile = new File(resFolder, "resource-config.json")
    resFile.delete()
    resFile.append(
            """{
  "resources":{
  "includes":[
    {
      "pattern": ".*(""")
    // This adds every filename in the assets/ folder to a pattern that adds those files as resources.
    fileTree(assetsFolder).each {
      // The backslash-Q and backslash-E escape the start and end of a literal string, respectively.
      resFile.append("\\\\Q${it.name}\\\\E|")
    }
    // We also match all of the window icon images this way and the font files that are part of libGDX.
    resFile.append(
            """libgdx.+\\\\.png|lsans.+)"
    }
  ]},
  "bundles":[]
}"""
    )
  }
}