如何在使用Gradle构建脂肪罐时编译不同的口味

Question

我想在Java项目中包含V8（“J2V8”）的Java绑定。原因是:(i)V8 JavaScript引擎比JRE附带的JavaScript引擎快得多；(ii)我使用的库仅在JavaScript中可用，并且要花费大量的精力到Java端口。

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我目前正在创建脂肪罐子使用阴影插件。

注意，该项目不是Android项目。在那里，有了Android插件，这似乎是直截了当的。

第一个想法是引入配置和特定于配置的依赖关系：

configurations {
    linux_x86_64Compile.extendsFrom compile
    macosx_x86_64Compile.extendsFrom compile
    windows_x86_32Compile.extendsFrom compile
    windows_x86_64Compile.extendsFrom compile
}

dependencies {
    compile configuration: 'linux_x86_64',   group: 'com.eclipsesource.j2v8', name: 'j2v8_linux_x86_x64',  version: '4.6.0'
    compile configuration: 'macosx_x86_64',  group: 'com.eclipsesource.j2v8', name: 'j2v8_macosx_x86_x64', version: '4.6.0'
    compile configuration: 'windows_x86_32', group: 'com.eclipsesource.j2v8', name: 'j2v8_win32_x86',      version: '4.6.0'
    compile configuration: 'windows_x86_64', group: 'com.eclipsesource.j2v8', name: 'j2v8_win32_x86_x64',  version: '4.6.0'
...
}

task releaseSingleJar(dependsOn: "shadowJar", name) {
    doLast {
        copy {
            from("$buildDir/libs/JabRef-${project.version}-fat.jar")
            into("$buildDir/releases/")

            rename { String fileName ->
                fileName.replace('-fat', '-$name')
            }
        }
    }
}

task releaseJars() {
  forEach name in "linux_x86_64", "macosx_x86_64", "windows_x86_32", "windows_x86_64", "all":
     if (name != "all") activate configuration $name
     releaseSingleJar($name)

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• 如何为不同的产品口味定义不同的依赖关系
• gradle:为库的特定风格添加依赖项
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• 使用gradle为不同的应用口味使用不同的资源

Answer 1

您可能会对我的gradle-java-flavours插件感兴趣，该插件在java专案中为每个flavours创建源代码集、配置以及编译、jar和测试任务。

例如：

import com.github.jengelman.gradle.plugins.shadow.tasks.*
plugins {
    id 'com.lazan.javaflavours' version '1.2'
    id 'com.github.johnrengelman.shadow' version '1.2.4'
}
def flavours = ['linux_x86_64', 'macosx_x86_64', ...]
javaFlavours {
    flavours.each {
        flavour it
    }
}
dependencies {
    linux_x86_64Compile      'aaa:aaa:1.0'
    linux_x86_64Runtime      'bbb:bbb:1.0'
    macosx_x86_64TestCompile 'ccc:ccc:3.0'
}
flavours.each { String flavour ->
    SourceSet flavourSourceSet = sourceSets.getByName(flavour)
    Configuration flavourRuntime = configurations.getByName("${flavour}Runtime")
    JavaCompile flavourCompileTask = tasks.getByName("compile${flavour.capitalize()}Java")
    Task shadowJarTask = tasks.create(name: "${flavour}ShadowJar", type: ShadowJar) {
        classifier = "${flavour}-all"
        dependsOn flavourCompileTask 
        // todo configure (likely based on Configuration and SourceSet)
    }
    artifacts {
        archives shadowJarTask 
    }
    // wire the task into the DAG
    assemble.dependsOn shadowJarTask
}