Gradle:在自定义独立插件中使用'maven-publish‘插件

Question

在我的第三个问题之后，我几乎感觉像是在发垃圾邮件，因为我的问题看起来太琐碎了。但我在Gradle Docs中找不到任何对我的案例有帮助的东西，而且其他关于stackoverflow的问题也没有帮助。

这一次:我不能在我自己的自定义插件中使用maven-publish插件。到目前为止，我的插件代码如下：

package com.sample.gradle;

import org.gradle.api.Project;
import org.gradle.api.Plugin;

public class SampleGradlePlugin implements Plugin<Project> {
    public void apply(Project project) {

        project.apply plugin: 'application'
        project.apply plugin: 'maven-publish'
        project.apply plugin: 'maven'

        project.publishing.publications {
            maven(MavenPublication) {
                groupId project.group
                artifactId project.name
                version=project.version
                from components.java
            }
        }

        project.uploadArchives {
            repositories {
                mavenDeployer {
                    repository(url: project.Repo_Upload_Internal){
                        authentication(userName: project.Repo_Upload_User, password: project.Repo_Upload_Pass)
                    }        
                    snapshotRepository(url: project.Repo_Upload_Snapshot){
                        authentication(userName: project.Repo_Upload_User, password: project.Repo_Upload_Pass)
                    }
                }
            }
        }
        //this try/catch is not important for my question
        try{
            project.repositories {
                maven {
                    url project.Repo_Gp_Internal
                    credentials {
                        username project.Repo_Gp_User;
                    }
                }
            }
        }
        catch(MissingPropertyException e){
            println "Info: '"+e.getProperty()+"' not declared in \\"+project.name+"\\gradle.properties"
        }
    }
}

当我在我的项目中使用我的插件时，publishing闭包是给我带来这个错误的重要部分：

FAILURE: Build failed with an exception.

* Where:
Build file 'C:\Users\quastc\Desktop\Gradle_Projects\Application_RootProject\buil
d.gradle' line: 3

* What went wrong:
A problem occurred evaluating root project 'Application_RootProject'.
> Failed to apply plugin [id 'sample.sample-groovy-plugin']
   > Cannot create a Publication named 'MavenPublication' because this container
 does not support creating elements by name alone. Please specify which subtype
of Publication to create. Known subtypes are: MavenPublication

我的错误在哪里？我忘了什么？

如果有人回答，请让我知道你是如何获得你的知识的。

Answer 1

现在我找到了一个适合我的解决方案。我不再使用maven-publish插件了。只有maven插件。然后我把这段代码放在我自己的插件的末尾：

    project.configurations {
        deployerJars 
    }
    project.dependencies {
        deployerJars "org.apache.maven.wagon:wagon-http:2.2"
    }   
    project.uploadArchives {
        repositories {
            mavenDeployer {
                repository(url: project.Repo_Upload_Internal){
                    authentication(userName: project.Repo_Upload_User, password: project.Repo_Upload_Pass)
                }        
                snapshotRepository(url: project.Repo_Upload_Snapshot){
                    authentication(userName: project.Repo_Upload_User, password: project.Repo_Upload_Pass)
                }
            }
        }
    }

进一步：

我还没有找到一种方法来抑制zip和tar文件的上传。我仍然需要在几个build.gradle文件中复制和粘贴一些代码来完成这项工作。代码如下：

configurations.archives.with {
    artifacts.remove artifacts.find { it.archiveTask.is distZip }
    artifacts.remove artifacts.find { it.archiveTask.is distTar }
}

我还不能更改代码以在我的自定义插件中工作。

Answer 2

在我的例子中，我修复了错误消息，添加了以下内容：

import org.gradle.api.publish.maven.MavenPublication

但后来又面临其他问题，最终使用nebula-publishing-plugin解决了所有问题

Answer 3

这对我来说很有效，使用gradle 4.10和maven-publish。

在我的自定义插件.groovy中：

import org.gradle.api.publish.maven.MavenPublication

...

project.extensions.configure PublishingExtension, new ClosureBackedAction( {
                publications{
                    mycustompub(MavenPublication) {
                        groupId = project.group
                        artifactId = <artifact name>
                        artifact source: <path to artifact>, extension: 'zip'
                    }
            }})