Artifacts

Simple Jar

Jar task is provided by Java plugin. We can update its default configuration. For example, if we want to create a runnable jar, we need to provide main class, that will be inserted into manifest.

jar {
    manifest {
        attributes 'Main-Class': 'com.test.Main'
    }
}

Assemble task

When we have applied Java plugin, we can run gradle assemble in order to create jar files in build directory. We can update the defaults.

task sourcesJar(type: Jar) {
    baseName baseName
    classifier 'sources'
    from sourceSets.main.allSource
}
artifacts {
    archives sourcesJar // creates 'build/libs/myproject-sources.jar'
}

Create distribution

Apply plugin distribution and then we can create different distribution archives. Here we create main distribution, that contains all jars. Then we create docs distribution that contains all source files.

apply plugin: 'distribution'
distributions {
    main {
        baseName = baseName
        contents {
            from { libsDir }
        }
    }

    docs {
        baseName = "$baseName-docs"
        contents {
            from(libsDir) {
                include sourcesJar.archiveName
            }
        }
    }
}

Publish artifacts

We can use maven-publish plugin to upload our artifacts into a repository.

apply plugin: 'maven-publish'
publishing {
    publications {
        plugin(MavenPublication) {
            from components.java
            artifactId 'published-file'
            version '1.0'
            // groupId needs to be provided in order to publish to artifactory
            groupId 'org.gradle.sample'
            artifact sourcesJar
        }
    }
    // specify own maven local repository
    repositories {
        maven {
            name 'myLocal'
            url "file://$projectDir/repo"
            // gradle publishPluginPublicationToMyLocalRepository <= check the name, name of maven configuration is in the name of the task!
        }
        // to publish into remote and secured artifactory, use:
        maven {
            name 'JFrog'
            url "http://jfrog.com/your/repo"
            // gradle publishPluginPublicationToJFrogRepository
            credentials {
                username = ''
                password = ''
            }
        }
    }
}