build.gradle

import groovy.io.FileType
import com.amazonaws.auth.STSAssumeRoleSessionCredentialsProvider
import com.amazonaws.services.s3.AmazonS3Client

apply plugin: 'java-library'
apply plugin: 'maven-publish'

group = 'com.mojang'
version = project.hasProperty('buildNumber') ? "${project.majorMinor}.${project.buildNumber}" : "${project.majorMinor}.0-SNAPSHOT"

buildscript {
    repositories {
        mavenCentral()
        maven {
            url "https://libraries.minecraft.net"
        }
    }

    dependencies {
        classpath 'com.amazonaws:aws-java-sdk:1.11.33'
    }
}

repositories {
    maven {
        url "https://libraries.minecraft.net"
    }
    mavenCentral()
}

dependencies {
    testCompile 'com.google.guava:guava:26.0-jre'
    testCompile 'junit:junit-dep:4.11'
    testCompile 'org.hamcrest:hamcrest-library:1.3'
    testCompile 'org.mockito:mockito-core:1.10.19'
    testCompile 'com.google.guava:guava-testlib:26.0-jre'
    testCompile 'org.openjdk.jmh:jmh-core:1.21'
    annotationProcessor 'org.openjdk.jmh:jmh-generator-annprocess:1.21'
}

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

sourceSets {
    main {
        java {
            srcDirs = ['src/main/java']
        }
        resources {
            srcDirs = ['src/main/resources']
        }
    }
    test {
        java {
            srcDirs = ['src/test/java']
        }
        resources {
            srcDirs = ['src/test/resources']
        }
    }
}

artifacts {
    archives jar
    archives sourcesJar
}

test {
    testLogging {
        events "failed", "skipped"
        showStandardStreams = true
        showExceptions true
    }
}

publishing {
    publications {
        mavenJava(MavenPublication) {
            from components.java
            artifact sourcesJar
        }
    }
}

task report {
    doLast {
        println "##teamcity[buildNumber '${project.version}']"
    }
}

def publishDir = file("$buildDir/repo")


def uploadFile(s3, bucket, path, filename) {
    println "Uploading $filename to $bucket as $path"
    s3.putObject(bucket, path, filename)
}

clean.doLast {
    delete publishDir
}

if (version.endsWith("SNAPSHOT")) {
    publishing.repositories {
        mavenLocal()
    }
} else {
    publishing.repositories {
        maven {
           url "$buildDir/repo"
        }
    }

    publish.doLast {
        def AWSRoleARN = (System.getenv("AWS_ROLE_ARN") != null && System.getenv("AWS_ROLE_ARN") != "" ? System.getenv("AWS_ROLE_ARN") : null)
        if (AWSRoleARN == null) throw new GradleException("AWS Role has not been configured, use the `AWS_ROLE_ARN` environment variable")
        def auth = new STSAssumeRoleSessionCredentialsProvider.Builder(AWSRoleARN, "JavaBrigadierPublish").build()
        def s3 = new AmazonS3Client(auth)
        publishDir.eachFileRecurse {
            if (!it.name.contains(".xml") && !it.name.contains(".md5") && it.isFile()) {
                def relPath = publishDir.toPath().relativize(it.toPath()).toFile().toString().replaceAll('\\\\', '/')
                uploadFile(s3, "minecraft-libraries", relPath, it)
            }
        }
    }
}