如何使上传档案依赖于另一个任务

Question

我的build.gradle中有以下内容：

afterEvaluate { project ->
  uploadArchives {
    repositories {
      mavenDeployer {
        configuration = configurations.deployerJars
        pom.packaging = "aar"
        pom.groupId = project.CORE_GROUP
        pom.version = project.CORE_VERSION_NAME
        repository(url: "scp://" + project.CORE_MAVEN_URL) {
          authentication(userName: project.uploadUsername, privateKey: project.uploadKeyFile)
        }
      }
    }
  }
}

我希望它依赖于以下任务：

task checkProperties << {
  if (!project.hasProperty('uploadUsername')) {
   throw new RuntimeException("Couldn't find uploadUsername property. Did you forget to specify it in ~/.gradle/gradle.properties?")
  } else if (!project.hasProperty('uploadKeyFile')) {
    throw new RuntimeException("Couldn't find uploadKeyFile property. Did you forget to specify it in ~/.gradle/gradle.properties?")
  }
}

我怎样才能做到这一点？如果我写以下内容：

afterEvaluate { project ->
  uploadArchives(dependsOn: checkProperties) {
    repositories {
      mavenDeployer {
        configuration = configurations.deployerJars
        pom.packaging = "aar"
        pom.groupId = project.CORE_GROUP
        pom.version = project.CORE_VERSION_NAME
        repository(url: "scp://" + project.CORE_MAVEN_URL) {
          authentication(userName: project.uploadUsername, privateKey: project.uploadKeyFile)
        }
      }
    }
  }
}

然后我收到以下错误：

FAILURE: Build failed with an exception.
* Where:
Build file '/Users/scottjohnson/Source/core-android/core/build.gradle' line: 61
* What went wrong:
A problem occurred configuring project ':core'.
> org.gradle.api.internal.MissingMethodException: Could not find method mavenDeployer() for arguments [build_42edqo477lbj5geoh0e3gdkj7q$_run_closure6_closure9_closure10_closure11@30b8afce] on repository container.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
BUILD FAILED
Total time: 7.68 secs

顺便说一句，我想这样做的原因是，现在，如果我只是将检查属性的代码放入uploadArchives任务中，那么即使我运行 ./gradlew clean build ，它也会检查属性(我不想在我的构建服务器上发生，因为它没有实际上传档案的权限(。因此，仅在执行uploadArchives任务时检查属性的方法也是可以接受的。

Answer 1

关于您的错误消息，您可能会错过将 maven 插件应用于您的 build.gradle 文件(应用插件："maven"(。

请参阅：https://discuss.gradle.org/t/configure-mavendeployer-programmatically/16956/2

Answer 2

也许你可以尝试这样的事情：

apply plugin: 'java'
def uploadUsername = project.hasProperty('uploadUsername') ? project['uploadUsername'] : ''
def uploadKeyFile = project.hasProperty('uploadKeyFile') ? project['uploadKeyFile'] : ''
uploadArchives { }
task checkProperties << {
   if (!uploadUsername) {
      throw new RuntimeException("Couldn't find uploadUsername property. Did you forget to specify it in ~/.gradle/gradle.properties?")
   } else if (!uploadKeyFile) {
      throw new RuntimeException("Couldn't find uploadKeyFile property. Did you forget to specify it in ~/.gradle/gradle.properties?")
   }
}
uploadArchives.dependsOn(checkProperties)

一开始，读取这两个属性并将其分配给两个变量。如果其中任何一个不存在，则将分配简单的空值。它不会干扰生成流。然后声明uploadArchives依赖于checkProperties。如果调用它checkProperties将运行，如果任何声明的变量为空，则会引发异常。

Answer 3

我能够部分根据@Opal的评论弄清楚：

def checkProperties() {                                                         
  if (!project.hasProperty('uploadUsername')) {                                 
   throw new RuntimeException("Couldn't find uploadUsername property. Did you forget to specify it in ~/.gradle/gradle.properties?")
  } else if (!project.hasProperty('uploadKeyFile')) {                           
    throw new RuntimeException("Couldn't find uploadKeyFile property. Did you forget to specify it in ~/.gradle/gradle.properties?")
  }                                                                             
}                                                                               
uploadArchives {                                                                
  repositories {                                                                
    mavenDeployer {                                                             
      configuration = configurations.deployerJars                               
      pom.packaging = "aar"                                                     
      pom.groupId = project.CORE_GROUP                                          
      pom.version = project.CORE_VERSION_NAME                                   
      repository(url: "scp://" + project.CORE_MAVEN_URL) {                      
      }                                                                         
    }                                                                           
  }                                                                             
}                                                                               
// We need to check to make sure the properties are available before we execute 
// uploadArchives.                                                              
gradle.taskGraph.beforeTask { Task aTask ->                                     
  if (aTask == uploadArchives) {                                                
    checkProperties()                                                           
    aTask.repositories.mavenDeployer.repository(url: "scp://" + project.CORE_MAVEN_URL) {
      authentication(userName: project.uploadUsername, privateKey: project.uploadKeyFile)
    }                                                                           
  }                                                                             
}