如何 Gradle 仅加载当前平台的 JavaCV 二进制文件？

Question

我正在使用 JavaCV 构建 Java 桌面应用程序。

1. 当我的应用程序构建时，它是巨大的（1.2GB，几乎是所有未使用的 JavaCV 依赖项）。我正在尝试减少加载的 deps，因为我需要的只是一些入门级 ffmpeg GPL 函数。

2. 此外，我的测试套件因一系列错误而失败，例如

   boot层初始化时发生错误 java.lang.LayerInstantiationException：模块 org.bytedeco.artoolkitplus.android.x86 和模块 org.bytedeco.tesseract.android.x86 中都包含 lib.x86

build.gradle

plugins {
  id 'java'
  id 'application'
  id 'distribution'
  //
  id 'de.undercouch.download' version "4.0.4"
  id "org.beryx.jlink" version "2.24.1"
  id 'io.spring.dependency-management' version '1.0.15.RELEASE'
  id 'org.openjfx.javafxplugin' version '0.0.14'
  id 'org.springframework.boot' version '3.1.2' // must match springBootVersion below
}

ext {
  javaFxVersion = '18.0.2'
  junitVersion = '5.9.2'
  logbackVersion = '1.4.11'
  springBootVersion = '3.1.2'
}

group = 'io.xj'

sourceCompatibility = JavaVersion.VERSION_18
targetCompatibility = JavaVersion.VERSION_18

mainClassName = 'io.xj.gui.WorkstationGuiApplication'

tasks.withType(JavaCompile).tap {
  configureEach {
    options.encoding = 'UTF-8'
  }
}

apply plugin: 'java'

configurations {
  implementation {
    exclude group: "commons-logging", module: "commons-logging"
    exclude group: 'com.google.code.findbugs', module: 'jsr305'
  }
}

repositories {
  mavenCentral()
  mavenLocal()
  maven {
    url = 'https://repo.maven.apache.org/maven2'
  }
  maven {
    url = 'https://packages.confluent.io/maven/'
  }
}

javafx {
  version = "${rootProject.ext.javaFxVersion}"
  modules = ['javafx.base', 'javafx.controls', 'javafx.fxml', 'javafx.graphics']
}

//noinspection GroovyAssignabilityCheck
ext.os = org.gradle.internal.os.OperatingSystem.current() as org.gradle.internal.os.OperatingSystem

jlink {
  // imageZip = file("$buildDir/image-zip/javacv-example.zip")
  // options = ['--bind-services', '--strip-debug', '--compress', '2', '--no-header-files', '--no-man-pages']
  addExtraDependencies 'javafx'

  launcher {
    name = 'javacv-example'
    noConsole = true
  }
  jpackage {
    if (os.windows) {
//      installerOptions = ['--win-per-user-install', '--win-dir-chooser', '--win-menu']
    }
  }
}

dependencies {
  implementation "ch.qos.logback:logback-classic:${rootProject.ext.logbackVersion}"
  implementation "ch.qos.logback:logback-core:${rootProject.ext.logbackVersion}"
  implementation "org.openjfx:javafx-base:${rootProject.ext.javaFxVersion}"
  implementation "org.openjfx:javafx-controls:${rootProject.ext.javaFxVersion}"
  implementation "org.openjfx:javafx-fxml:${rootProject.ext.javaFxVersion}"
  implementation "org.openjfx:javafx-graphics:${rootProject.ext.javaFxVersion}"
  implementation "org.springframework.boot:spring-boot-starter-logging:${rootProject.ext.springBootVersion}"
  implementation "org.springframework.boot:spring-boot-starter:${rootProject.ext.springBootVersion}"
  implementation 'commons-codec:commons-codec:1.15'
  implementation 'commons-io:commons-io:2.11.0'
  implementation 'org.bytedeco:ffmpeg-platform-gpl:6.0-1.5.9' // Optional GPL builds with (almost) everything enabled
  implementation 'org.bytedeco:flandmark-platform:1.07-1.5.8' // Required by org.bytedeco.javacv
  implementation 'org.bytedeco:javacv-platform:1.5.9'
  implementation 'org.reflections:reflections:0.10.2'
  testImplementation "org.junit.jupiter:junit-jupiter-api:${rootProject.ext.junitVersion}"
  testImplementation 'org.hamcrest:hamcrest-library:2.2'
  testImplementation 'org.mockito:mockito-junit-jupiter'
  testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:${rootProject.ext.junitVersion}"
}

//noinspection ConfigurationAvoidance
task 'bootJarZip'(type: Zip) {
  dependsOn('bootJar')
  from "build/libs/"
  archiveBaseName = 'javacv-example'
  include "javacv-example-${rootProject.version}.jar"
  destinationDirectory = file("$buildDir/dist")
}

bootJar {
  launchScript()
  archiveBaseName = 'javacv-example'
}

test {
  useJUnitPlatform()
}

模块信息.java

module main {
  requires ch.qos.logback.classic;
  requires ch.qos.logback.core;
  requires jakarta.annotation;
  requires java.desktop;
  requires javafx.base;
  requires javafx.controls;
  requires javafx.fxml;
  requires javafx.graphics;
  requires org.apache.commons.codec;
  requires org.apache.commons.io;
  requires org.bytedeco.ffmpeg;
  requires org.bytedeco.flandmark.platform;
  requires org.bytedeco.flandmark;
  requires org.bytedeco.javacv.platform;
  requires org.bytedeco.javacv;
  requires org.slf4j;
  requires spring.beans;
  requires spring.boot.autoconfigure;
  requires spring.boot;
  requires spring.context;
  requires spring.core;
  requires spring.jcl;

  opens io.xj.gui.controllers to javafx.graphics, javafx.base, javafx.fxml, javafx.controls, spring.beans;
  opens io.xj.gui.events to javafx.base, javafx.controls, javafx.fxml, javafx.graphics, spring.beans, spring.context, spring.core;
  opens io.xj.gui.listeners to javafx.base, javafx.controls, javafx.fxml, javafx.graphics, spring.beans, spring.context, spring.core, ch.qos.logback.core;
  opens io.xj.gui.services to javafx.base, javafx.controls, javafx.fxml, javafx.graphics, spring.beans, spring.context, spring.core;
  opens io.xj.gui to ch.qos.logback.core, javafx.base, javafx.controls, javafx.fxml, javafx.graphics, spring.beans, spring.context, spring.core;
}

完整演示这里

Answer 1

简而言之：Gradle JavaCPP 实现了这一点：

plugins {
  id 'org.bytedeco.gradle-javacpp-platform' version "1.5.9"
}

// We can set this on the command line too this way: -PjavacppPlatform=linux-x86_64,macosx-x86_64,windows-x86_64,etc
ext {
    javacppPlatform = 'linux-x86_64,macosx-x86_64,windows-x86_64,etc' // defaults to Loader.getPlatform()
}