How to script Gradle in order to publish shadowjar

问题:

I am using shadowJar in my java project. I would like to push the outcome into artifactory.

My gradle script look like this, I am not sure how to connect the dots:

shadowJar {
    baseName = 'com.mycompany.myapp'
    manifest {
        attributes 'Main-Class': 'myapp.starter'
    }
}


  ]
    apply plugin: 'java'
    apply plugin: 'idea'
    apply plugin: 'maven'
    apply plugin: 'com.github.johnrengelman.shadow'


    // rep for the project
    repositories {
        mavenCentral()
        maven {
            url 'http://repo.company:8081/artifactory/libs-release'
            credentials {
                username = "${repo_user}"
                password = "${repo_password}"
            }
        }
        maven {
            url 'http://repo.company:8081/artifactory/libs-snapshot'
            credentials {
                username = "${repo_user}"
                password = "${repo_password}"
            }
        }

}


publishing {
    publications {
        mavenJava(MavenPublication) {
            from components.java

            artifact sourceJar {
                classifier "sources"
            }
        }
    }
}

How do I code gradle to take the shadowjar file?

thanks, ray.

回答1:

The publication section determines what you're publishing using the maven-publish plugin.

In your current config, from components.java is going to publish the default jar artifact of your project and artifact sourceJar publishes the sourceJar. In order to publish a different jar, you need to modify (or add a new) publication.

shadowJar {
  baseName = 'myproject-shadow'
  classifier = ''
}

publishing {
  publications {
    shadow(MavenPublication) {
      from components.shadow
      artifactId = 'myproject-shadow'
    }
  }
}

The version used in the name of the jar comes from project.version.

回答2:

The API has changed in the shadow plugin, this works for me with com.github.jengelman.gradle.plugins:shadow:2.0.1: http://imperceptiblethoughts.com/shadow/#publishing_shadow_jars

5. Publishing Shadow JARs
5.1. Publishing with Maven-Publish Plugin
The Shadow plugin will automatically configure the necessary tasks 
in the presence of Gradle’s maven-publish plugin. The plugin provides
the component method from the shadow extension to configure the 
publication with the necessary artifact and dependencies in the 
POM file.

Publishing a Shadow JAR with the Maven-Publish Plugin
apply plugin: 'java'
apply plugin: 'maven-publish'
apply plugin: 'com.github.johnrengelman.shadow'

publishing {
  publications {
    shadow(MavenPublication) { publication ->
      project.shadow.component(publication)
    }
  }
  repositories {
    maven {
      url "http://repo.myorg.com"
    }
  }
}

回答3:

Have you looked at the Artifactory Gradle Plugin? This can help you with what you need, resolving and deploying artifacts from and to Artifactory.

You can publish using the plugin by omitting the 'artifactory' plugin from a project that does not publish anything. Note that this does not apply to the root project that contains the convention object, and so, requires the plugin to be applied. Activate the corresponding artifactoryPublish Gradle task manually for each project to which you wish to apply the plugin. For example in our Gradle project example you can run: ./gradlew clean api:artifactoryPublish shared:artifactoryPublish

回答4:

Here is what I did to get Gradle to publish to our Nexus repo using the shadow plugin and the maven-publish plugin: (run publish task: "gradle publish")

plugins {
    id 'com.github.johnrengelman.shadow' version '1.2.4'
}

apply plugin: 'maven-publish'

publishing {
    publications {
        shadow(MavenPublication) {
            from components.shadow
            groupId 'myGroupId'
            artifactId 'myArtifactId'
        }
    }
    repositories {
        maven {
            url "http://nexus.mycompany.com/repository/stuff"
            credentials {
                username = "${System.env.NEXUS_USERNAME}"
                password = "${System.env.NEXUS_PASSWORD}"
            }
        }
    }
}