java-tutorials/gradle-modules/gradle/gradletaskdemo/build.gradle

buildscript {
    repositories {
        maven {
            url "https://plugins.gradle.org/m2/"
        }
    }
    dependencies {
        classpath "org.shipkit:shipkit:2.3.5"
    }
}

plugins {
    id 'java'
}

apply from: 'aplugin.gradle'
apply plugin: 'org.shipkit.bintray-release'


//hello task
task hello {
    doLast {
        println 'Baeldung'
    }
}

//Groovy in gradle task
task toLower {
    doLast {
        String someString = 'HELLO FROM BAELDUNG'
        println "Original: " + someString
        println "Lower case: " + someString.toLowerCase()
    }
}


// Task dependencies
task helloGradle {
    doLast {
        println 'Hello Gradle!'
    }
}

task fromBaeldung(dependsOn: helloGradle) {
    doLast {
        println "I'm from Baeldung"
    }
}


//Adding behavior to a task via api
task helloBaeldung {
    doLast {
        println 'I will be executed second'
    }
}

helloBaeldung.doFirst {
    println 'I will be executed first'
}

helloBaeldung.doLast {
    println 'I will be executed third'
}

helloBaeldung {
    doLast {
        println 'I will be executed fourth'
    }
}


//Adding extra task properties
task ourTask {
    ext.theProperty = "theValue"
}

task printTaskProperty {
    doLast {
        println ourTask.theProperty
    }
}


//Declaring dependencies
dependencies {
    implementation group:
      'org.springframework', name: 'spring-core', version: '4.3.5.RELEASE'
    implementation 'org.springframework:spring-core:4.3.5.RELEASE',
            'org.springframework:spring-aop:4.3.5.RELEASE'
    implementation(
        [group: 'org.springframework', name: 'spring-core', version: '4.3.5.RELEASE'],
        [group: 'org.springframework', name: 'spring-aop', version: '4.3.5.RELEASE']
    )
    testImplementation('org.hibernate:hibernate-core:5.2.12.Final') {
        transitive = true
    }
    runtimeOnly(group: 'org.hibernate', name: 'hibernate-core', version: '5.2.12.Final') {
        transitive = false
    }
    runtimeOnly "org.codehaus.groovy:groovy-all:2.4.11@jar"
    runtimeOnly group: 'org.codehaus.groovy', name: 'groovy-all', version: '2.4.11', ext: 'jar'

    implementation fileTree(dir: 'libs', include: '*.jar')
}