build.publish.gradle

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

task javadocJar(type: Jar) {
    classifier = 'javadoc'
    from javadoc
}

task sourcesJar(type: Jar) {
    classifier = 'sources'
    from sourceSets.main.allSource
}

artifacts {
    archives javadocJar, sourcesJar
}

boolean validProperty(propertyName) {
    try { project.property(propertyName) != null }
    catch (MissingPropertyException) { false }
}

assert validProperty('signing.keyId'),             'properties for signing must be provided'
assert validProperty('signing.secretKeyRingFile'), 'properties for signing must be provided'
assert validProperty('sonatypeUsername'),          'properties for publish must be provided'
assert validProperty('sonatypeFullname'),          'properties for publish must be provided'

String askPassword(prompt) {
    "${System.console().readPassword(prompt)}"
}

if (!validProperty('sining.password')) {
    def newPassword =
            askPassword("\nEnter password for PGP key ${property('signing.keyId')}: ")
    ext.'signing.password' = newPassword
}

signing {
    sign configurations.archives
}

uploadArchives {
    repositories.mavenDeployer {
        beforeDeployment { MavenDeployment deployment -> signing.signPom(deployment) }
        repository(url: "https://oss.sonatype.org/service/local/staging/deploy/maven2/") {
            authentication(userName: sonatypeUsername, password: sonatypePassword)
        }

        snapshotRepository(url: "https://oss.sonatype.org/content/repositories/snapshots/") {
            authentication(userName: sonatypeUsername, password: sonatypePassword)
        }

        pom.project {
            name project.name
            packaging 'jar'
            description project.description
            url 'https://github.com/tkawachi/exhash'
            scm {
                url 'git@github.com:tkawachi/exhash.git'
                connection 'scm:git:git@github.com:tkawachi/exhash.git'
                developerConnection 'scm:git:git@github.com:tkawachi/exhash.git'
            }
            licenses {
                license {
                    name 'The Apache Software License, Version 2.0'
                    url 'http://www.apache.org/licenses/LICENSE-2.0.txt'
                    distribution 'repo'
                }
            }
            developers {
                developer {
                    id sonatypeUsername
                    name sonatypeFullname
                }
            }
        }
    }
}