build.gradle

import java.text.SimpleDateFormat

plugins {
    id 'java'
    id 'java-library'
    id 'maven'
    id 'maven-publish'
    id 'antlr'
    id 'signing'
    id "com.github.johnrengelman.shadow" version "6.1.0"
    id "biz.aQute.bnd.builder" version "5.1.2"
    id "io.github.gradle-nexus.publish-plugin" version "1.0.0"
}


def getDevelopmentVersion() {
    def output = new StringBuilder()
    def error = new StringBuilder()
    def gitShortHash = ["git", "-C", projectDir.toString(), "rev-parse", "--short", "HEAD"].execute()
    gitShortHash.waitForProcessOutput(output, error)
    def gitHash = output.toString().trim()
    if (gitHash.isEmpty()) {
        println "git hash is empty: error: ${error.toString()}"
        throw new IllegalStateException("git hash could not be determined")
    }
    def version = "0.0.0-" + new SimpleDateFormat('yyyy-MM-dd\'T\'HH-mm-ss').format(new Date()) + "-" + gitHash
    println "created development version: $version"
    version
}

if (JavaVersion.current() != JavaVersion.VERSION_1_8) {
    def msg = String.format("This build must be run with java 1.8 - you are running %s - gradle finds the JDK via JAVA_HOME=%s",
            JavaVersion.current(), System.getenv("JAVA_HOME"))
    throw new GradleException(msg)
}


sourceCompatibility = 1.8
targetCompatibility = 1.8
def reactiveStreamsVersion = '1.0.2'
def slf4jVersion = '1.7.30'
def releaseVersion = System.env.RELEASE_VERSION
version = releaseVersion ? releaseVersion : getDevelopmentVersion()
group = 'com.graphql-java'

gradle.buildFinished { buildResult ->
    println "*******************************"
    println "*"
    if (buildResult.failure != null) {
        println "* FAILURE - ${buildResult.failure}"
    } else {
        println "* SUCCESS"
    }
    println "* Version: $version"
    println "*"
    println "*******************************"
}

repositories {
    mavenCentral()
    mavenLocal()
}

apply plugin: 'groovy'

jar {
    from "LICENSE.md"
    from "src/main/antlr/Graphql.g4"
    from "src/main/antlr/GraphqlOperation.g4"
    from "src/main/antlr/GraphqlSDL.g4"
    from "src/main/antlr/GraphqlCommon.g4"
    manifest {
        attributes('Automatic-Module-Name': 'com.graphql-java')
    }
}

dependencies {
    compileOnly 'org.jetbrains:annotations:20.1.0'
    implementation 'org.antlr:antlr4-runtime:4.8'
    implementation 'org.slf4j:slf4j-api:' + slf4jVersion
    api 'com.graphql-java:java-dataloader:2.2.3'
    api 'org.reactivestreams:reactive-streams:' + reactiveStreamsVersion
    antlr "org.antlr:antlr4:4.8"
    implementation 'com.google.guava:guava:30.0-jre'
    testImplementation group: 'junit', name: 'junit', version: '4.12'
    testImplementation 'org.spockframework:spock-core:1.3-groovy-2.5'
    testImplementation('org.codehaus.groovy:groovy:2.5.13')
    testImplementation 'cglib:cglib-nodep:3.3.0'
    testImplementation 'org.objenesis:objenesis:2.1'
    testImplementation 'com.google.code.gson:gson:2.8.0'
    testImplementation 'org.eclipse.jetty:jetty-server:9.4.26.v20200117'
    testImplementation 'com.fasterxml.jackson.core:jackson-databind:2.11.2'
    testImplementation 'org.slf4j:slf4j-simple:' + slf4jVersion
    testImplementation 'org.awaitility:awaitility-groovy:3.0.0'
    testImplementation 'com.github.javafaker:javafaker:0.13'

    testImplementation 'org.reactivestreams:reactive-streams-tck:' + reactiveStreamsVersion
    testImplementation "io.reactivex.rxjava2:rxjava:2.1.5"

    testImplementation 'org.testng:testng:6.1.1' // use for reactive streams test inheritance

    testImplementation 'org.openjdk.jmh:jmh-core:1.25'
    testAnnotationProcessor 'org.openjdk.jmh:jmh-generator-annprocess:1.25'
}

shadowJar {
    minimize()
    archiveClassifier.set('')
    configurations = [project.configurations.compileClasspath]
    relocate('com.google.common', 'graphql.com.google.common') {
        include 'com.google.common.collect.*'
        include 'com.google.common.base.*'
        include 'com.google.common.math.*'
        include 'com.google.common.primitives.*'
    }
    dependencies {
        include(dependency('com.google.guava:guava:30.0-jre'))
    }
    from "LICENSE.md"
    from "src/main/antlr/Graphql.g4"
    from "src/main/antlr/GraphqlOperation.g4"
    from "src/main/antlr/GraphqlSDL.g4"
    from "src/main/antlr/GraphqlCommon.g4"
    manifest {
        attributes('Automatic-Module-Name': 'com.graphqljava')
    }
    //Apply biz.aQute.bnd.builder plugin logic to shadowJar as in BndBuilderPlugin 
    convention.plugins.bundle = new aQute.bnd.gradle.BundleTaskConvention(it)
    doLast {
        //Call bnd after the ShadowJar was built to update the MANIFEST.MF
        buildBundle()
    }

    //Configure bnd for shadowJar
    // -exportcontents: graphql.*  Adds all packages of graphql and below to the exported packages list
    // -removeheaders:  Private-Package Removes the MANIFEST.MF header Private-Package, which contains all the internal packages and 
    //                                  also the repackaged pckages like guava, which would be wrong after repackaging.
    // Import-Package:  Changes the imported packages header, to exclude guava and dependencies from the import list (! excludes packages)
    //                  Guava was repackaged and included inside the jar, so we need remove it.
    //                  The last ,* copies all the existing imports from the other dependencies, which is required.
    bnd('''
-exportcontents: graphql.*
-removeheaders: Private-Package
Import-Package: !com.google.*,!org.checkerframework.*,!javax.annotation.*,!graphql.com.google.*,*
''')
}


task removeNotNeededGuava(type: Zip) {
    from({ zipTree({ "build/libs/graphql-java-${project.version}.jar" }) }) {
        exclude('/com/**')
    }
    archiveFileName = "graphql-java-tmp.jar"
    destinationDirectory = file("${project.buildDir}/libs")
    doLast {
        delete("build/libs/graphql-java-${project.version}.jar")
        file("build/libs/graphql-java-tmp.jar").renameTo(file("build/libs/graphql-java-${project.version}.jar"))
    }
}


shadowJar.finalizedBy removeNotNeededGuava


task testng(type: Test) {
    useTestNG()
}
check.dependsOn testng

compileJava.source file("build/generated-src"), sourceSets.main.java

generateGrammarSource {
    includes = ['Graphql.g4']
    maxHeapSize = "64m"
    arguments += ["-visitor"]
    outputDirectory = file("${project.buildDir}/generated-src/antlr/main/graphql/parser/antlr")
}
generateGrammarSource.inputs.dir('src/main/antlr')


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

task javadocJar(type: Jar, dependsOn: javadoc) {
    classifier = 'javadoc'
    from javadoc.destinationDir
}

javadoc {
    options.encoding = 'UTF-8'
}

artifacts {
    archives sourcesJar
    archives javadocJar
}

test {
    testLogging {
        exceptionFormat = 'full'
    }
}

allprojects {
    tasks.withType(Javadoc) {
        exclude('**/antlr/**')
    }
}

publishing {

    publications {

        graphqlJava(MavenPublication) {
            version version
            from components.java

            artifact sourcesJar {
                classifier "sources"
            }
            artifact javadocJar {
                classifier "javadoc"
            }
            pom.withXml {
                // The ANTLR-related code below--introduced in `1ac98bf`--addresses an issue with
                // the Gradle ANTLR plugin. `1ac98bf` can be reverted and this comment removed once
                // that issue is fixed and Gradle upgraded. See https://goo.gl/L92KiF and https://goo.gl/FY0PVR.
                //
                // We are removing here guava because the classes we want to use is "shaded" into the jar itself
                // via the shadowJar task
                Node pomNode = asNode()
                pomNode.dependencies.'*'.findAll() {
                    it.artifactId.text() == 'antlr4' || it.artifactId.text() == 'guava'
                }.each() {
                    it.parent().remove(it)
                }
                pomNode.children().last() + {
                    resolveStrategy = Closure.DELEGATE_FIRST
                    name 'graphql-java'
                    description 'GraphqL Java'
                    url "https://github.com/graphql-java/graphql-java"
                    scm {
                        url "https://github.com/graphql-java/graphql-java"
                        connection "https://github.com/graphql-java/graphql-java"
                        developerConnection "https://github.com/graphql-java/graphql-java"
                    }
                    licenses {
                        license {
                            name 'MIT'
                            url 'https://github.com/graphql-java/graphql-java/blob/master/LICENSE.md'
                            distribution 'repo'
                        }
                    }
                    developers {
                        developer {
                            id 'andimarek'
                            name 'Andreas Marek'
                        }
                    }
                }
            }
        }
    }
}

nexusPublishing {
    repositories {
        sonatype {
            username = System.env.MAVEN_CENTRAL_USER
            password = System.env.MAVEN_CENTRAL_PASSWORD
        }
    }
}

signing {
    def signingKey = System.env.MAVEN_CENTRAL_PGP_KEY
    useInMemoryPgpKeys(signingKey, "")
    sign publishing.publications
}


// all publish tasks depend on the build task
tasks.withType(PublishToMavenRepository) {
    dependsOn build
}


task myWrapper(type: Wrapper) {
    gradleVersion = '6.6.1'
    distributionUrl = "https://services.gradle.org/distributions/gradle-${gradleVersion}-all.zip"
}