build.gradle

plugins {
    id 'java-library'
}

repositories {
    jcenter()
}

dependencies {
    api 'org.apache.commons:commons-math3:3.6.1'
    implementation 'com.google.guava:guava:26.0-jre'
    testImplementation 'junit:junit:4.12'
}

def getEnv() {
    String d = System.getProperty('env')
    return d;
}

task replaceYml() {
    ant.replaceregexp(file: "src/main/resources/application.yml", match: "^.*active:\\s+(.*)", replace: "    active: " + getEnv(), byline: "true", encoding: "UTF-8")
}