Question

如何发布android-library项目的Jar包装？
我发现，classes.jar位于build/bundles/release/classes.jar下，我想这是正确的Jar包（包含*.class个文件）。

是否有某种官方方式，将库作为JAR而不是AAR发布？

修改
我使用Gradle来发布Maven工件，我想发布JAR和AAR包。所以带有签名的JAR，md5，manifest，...
基于https://chris.banes.me/2013/08/27/pushing-aars-to-maven-central/

apply plugin: 'maven'
apply plugin: 'signing'

configurations {
    archives {
        extendsFrom configurations.default
    }
}

def sonatypeRepositoryUrl
if (isReleaseBuild()) {
    println 'RELEASE BUILD'
    sonatypeRepositoryUrl = "https://oss.sonatype.org/service/local/staging/deploy/maven2/"
} else {
    println 'DEBUG BUILD'
    sonatypeRepositoryUrl = "https://oss.sonatype.org/content/repositories/snapshots/"
}

if(!hasProperty('nexusPassword')) {
    ext.set('nexusPassword', System.console().readPassword("\n\$ Type in password for Sonatype nexus account " + nexusUsername + ": "))
}

if(!signing.hasProperty('password')) {
    ext.set('signing.password', System.console().readPassword("\n\$ Type in GPG key password: "))
}

afterEvaluate { project ->
    uploadArchives {
        repositories {
            mavenDeployer {
                beforeDeployment { MavenDeployment deployment -> signing.signPom(deployment) }

                pom.artifactId = POM_ARTIFACT_ID

                repository(url: sonatypeRepositoryUrl) {
                    authentication(userName: nexusUsername, password: nexusPassword)
                }

                pom.project {
                    name POM_NAME
                    packaging POM_PACKAGING
                    description POM_DESCRIPTION
                    url POM_URL

                    scm {
                        url POM_SCM_URL
                        connection POM_SCM_CONNECTION
                        developerConnection POM_SCM_DEV_CONNECTION
                    }

                    licenses {
                        license {
                            name POM_LICENCE_NAME
                            url POM_LICENCE_URL
                            distribution POM_LICENCE_DIST
                        }
                    }

                    developers {
                        developer {
                            id "loopj"
                            name "James Smith"
                        }
                        developer {
                            id "smarek"
                            name "Marek Sebera"
                        }
                    }
                }
            }
        }
    }

    signing {
        required { isReleaseBuild() && gradle.taskGraph.hasTask("uploadArchives") }
        sign configurations.archives
    }

    task androidJavadocs(type: Javadoc) {
        source = android.sourceSets.main.java.srcDirs
    }

    task androidJavadocsJar(type: Jar) {
        classifier = 'javadoc'
        from androidJavadocs.destinationDir
    }

    task androidSourcesJar(type: Jar) {
        classifier = 'sources'
        from android.sourceSets.main.java.srcDirs
    }

    artifacts {
        archives androidSourcesJar
        archives androidJavadocsJar
    }
}

使用

task androidJar(type: Jar) {
    from android.sourceSets.main.java.srcDirs
}

将只封装java文件，而不是针对android sdk编译和链接

Answer 1

虽然我没有尝试将部署的工件上传到Sonatype（甚至是本地存储库），但在尝试解决同样的问题时，我设法提出a few weeks ago。

android.libraryVariants.all { variant ->
  def name = variant.buildType.name
  if (name.equals(com.android.builder.core.BuilderConstants.DEBUG)) {
    return; // Skip debug builds.
  }
  def task = project.tasks.create "jar${name.capitalize()}", Jar
  task.dependsOn variant.javaCompile
  task.from variant.javaCompile.destinationDir
  artifacts.add('archives', task);
}

然后运行以下命令：

./gradlew jarRelease

Answer 2

通过gradle从库项目生成jar的另一种方法如下：

在你的图书馆的build.gradle中：

def jarName = 'someJarName.jar'

task clearJar(type: Delete) {
    delete "${project.buildDir}/libs/" + jarName
}

task makeJar(type: Copy) {
    from("${project.buildDir}/intermediates/bundles/release/")
    into("${project.buildDir}/libs/")
    include('classes.jar')
    rename('classes.jar', jarName)
}

makeJar.dependsOn(clearJar, build)

我们在这里做的只是复制Android Gradle插件生成的classes.jar。请务必查看此文件的构建目录，并查看其内容是否符合您的要求。

然后运行makeJar任务，生成的jar将在library / build / libs / ${jarName}。jar

将根据您的发布配置包含类文件。如果你对它进行模糊处理，那么jar中的文件将被混淆。

Answer 3

仅仅因为之前的答案不符合我的需求，我分享了我的棘手版本，以生成一个包含项目类和aar / jar依赖项的jar。

// A tricky jar operation, we want to generate a jar files that contains only the required classes used.
// Dependencies are in jar and aar, so we need to open the aar to extract the classes and put all at the same level
// (aar is a zip that contains classes.jar, the latter is a zip that contains .class files)
task jar(type: Jar) {
    from {
        List<File> allFiles = new ArrayList<>();
        configurations.compile.collect {
            for (File f : zipTree(it).getFiles()) {
                if (f.getName().equals("classes.jar")) {
                    allFiles.addAll(zipTree(f).getAt("asFileTrees").get(0).getDir())
                }
            }
        }
        allFiles.add(new File('build/intermediates/classes/release'))
        allFiles // To return the result inside a lambda
    }
    archiveName( project.ext.appName + '.jar' )
}

这不管理构建类型/风格，但可以进行调整（它可以构建在没有风味的构建类型版本上）。

如果您拥有更智能或更优雅的解决方案，请分享！

Android Library Gradle发布JAR

3 个答案: