/*
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch licenses this file to you under
 * the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

buildscript {
    repositories {
        maven {
            url 'https://plugins.gradle.org/m2/'
        }
    }
    dependencies {
        classpath 'com.github.jengelman.gradle.plugins:shadow:2.0.4'
    }
}

apply plugin: 'elasticsearch.build'

// order of this seciont matters, see: https://github.com/johnrengelman/shadow/issues/336
apply plugin: 'application' // have the shadow plugin provide the runShadow task
mainClassName = 'org.openjdk.jmh.Main'
apply plugin: 'com.github.johnrengelman.shadow' // build an uberjar with all benchmarks

// Not published so no need to assemble
tasks.remove(assemble)
build.dependsOn.remove('assemble')

archivesBaseName = 'elasticsearch-benchmarks'

test.enabled = false

dependencies {
    compile("org.elasticsearch:elasticsearch:${version}") {
        // JMH ships with the conflicting version 4.6. This prevents us from using jopt-simple in benchmarks (which should be ok) but allows
        // us to invoke the JMH uberjar as usual.
        exclude group: 'net.sf.jopt-simple', module: 'jopt-simple'
    }
    compile "org.openjdk.jmh:jmh-core:$versions.jmh"
    compile "org.openjdk.jmh:jmh-generator-annprocess:$versions.jmh"
    // Dependencies of JMH
    runtime 'net.sf.jopt-simple:jopt-simple:4.6'
    runtime 'org.apache.commons:commons-math3:3.2'
}

compileJava.options.compilerArgs << "-Xlint:-cast,-deprecation,-rawtypes,-try,-unchecked,-processing"
// enable the JMH's BenchmarkProcessor to generate the final benchmark classes
// needs to be added separately otherwise Gradle will quote it and javac will fail
compileJava.options.compilerArgs.addAll(["-processor", "org.openjdk.jmh.generators.BenchmarkProcessor"])

forbiddenApis {
    // classes generated by JMH can use all sorts of forbidden APIs but we have no influence at all and cannot exclude these classes
    ignoreFailures = true
}

// No licenses for our benchmark deps (we don't ship benchmarks)
dependencyLicenses.enabled = false
dependenciesInfo.enabled = false

thirdPartyAudit.excludes = [
        // these classes intentionally use JDK internal API (and this is ok since the project is maintained by Oracle employees)
        'org.openjdk.jmh.profile.AbstractHotspotProfiler',
        'org.openjdk.jmh.profile.HotspotThreadProfiler',
        'org.openjdk.jmh.profile.HotspotClassloadingProfiler',
        'org.openjdk.jmh.profile.HotspotCompilationProfiler',
        'org.openjdk.jmh.profile.HotspotMemoryProfiler',
        'org.openjdk.jmh.profile.HotspotRuntimeProfiler',
        'org.openjdk.jmh.util.Utils'
]

shadowJar {
    classifier = 'benchmarks'
}

runShadow {
    executable = new File(project.runtimeJavaHome, 'bin/java')
}

// alias the shadowJar and runShadow tasks to abstract from the concrete plugin that we are using and provide a more consistent interface
task jmhJar(
        dependsOn: shadowJar,
        description: 'Generates an uberjar with the microbenchmarks and all dependencies',
        group: 'Benchmark'
)

task jmh(
        dependsOn: runShadow,
        description: 'Runs all microbenchmarks',
        group: 'Benchmark'
)