Gradle build multi arch rust release and build a image

build.gradle.kts

/*
 * This file was generated by the Gradle 'init' task.
 *
 * This is a general purpose Gradle build.
 * Learn more about Gradle by exploring our samples at https://docs.gradle.org/8.0.2/samples
 * This project uses @Incubating APIs which are subject to change.
 */

val isReleaseString: String = properties["release"].toString() ?: System.getenv("RELEASE") ?: ""
val isRelease = "true".equals(isReleaseString, ignoreCase = true)

val imageName = properties["imageName"] ?: "language-basic"
val projectName = project.name

task<Delete>("clean") {
    delete = setOf(
        "target"
    )
}

tasks.register("buildCross") {
    var x86args = mutableListOf("build", "--target", "x86_64-unknown-linux-gnu")
    var aarch64args = mutableListOf("build", "--target", "aarch64-unknown-linux-gnu")
    if(isRelease) {
        x86args += "--release"
        aarch64args += "--release"
    }
    exec {
        inputs.dir("./src")

        outputs.dir("./target/x86_64-unknown-linux-gnu")
        executable = "cross"
        args = x86args
    }
    exec {
        inputs.dir("./src")

        outputs.dir("./target/aarch64-unknown-linux-gnu")
        executable = "cross"
        args = aarch64args

    }
}

tasks.create<Copy>("copyArch") {
    dependsOn("buildCross")
    val x86target = "target/x86_64-unknown-linux-gnu/release/${projectName}".takeIf { isRelease } ?: "target/x86_64-unknown-linux-gnu/debug/${projectName}"
    val aarch64target = "target/aarch64-unknown-linux-gnu/release/${projectName}".takeIf { isRelease } ?: "target/aarch64-unknown-linux-gnu/debug/${projectName}"
    from(x86target) {
        rename(projectName, "amd64-${projectName}")
    }
    from(aarch64target) {
        rename(projectName, "arm64-${projectName}")
    }
    into("target/binaries/")
}

tasks.create<Exec>("buildImage") {
    dependsOn("buildCross", "copyArch")
    commandLine("docker", "buildx", "build", "--platform", "linux/arm64,linux/amd64", "-t", imageName,
        "--build-arg", "EXECUTABLENAME=${projectName}", ".")
}