Change Gradle build

build.gradle

@@ -1,86 +1,49 @@
-buildscript {
-    repositories {
-        jcenter()
-        maven {
-            url "https://plugins.gradle.org/m2/"
-        }
-    }
-    dependencies {
-        classpath 'org.asciidoctor:asciidoctor-gradle-plugin:1.5.7'
-        //classpath 'org.asciidoctor:asciidoctorj-epub3:1.5.0-alpha.6'
-        classpath ('org.asciidoctor:asciidoctorj-pdf:1.5.0-alpha.16') {
-            exclude group: 'org.jruby'
-        }
-        classpath 'org.jruby:jruby:9.1.17.0'
-    }
+plugins {
+    id 'org.asciidoctor.jvm.pdf' version '3.1.0'
+    id 'org.asciidoctor.jvm.gems' version '3.1.0'
 }
 
-apply plugin: 'org.asciidoctor.convert'
 apply plugin: 'java'
-apply plugin: 'maven'
-apply plugin: 'checkstyle'
-apply plugin: 'pmd'
-apply plugin: 'project-report'
+
+description = 'Introduction to documentation'
+version = '1.0.0-SNAPSHOT'
 
 repositories {
-    mavenCentral()
     jcenter()
+    ruby.gems()
 }
 
-sourceCompatibility = 1.8
-group = 'com.ibtp'
-version = '0.0.1-SNAPSHOT'
-description = 'Project Generations: Generative Programmierung in Java'
-
-final BUILD_DATE = new Date().format('dd.MM.yyyy').toString()
-
-asciidoctorj {
-    version = '1.6.0-alpha.7'
-}
-
-asciidoctor {
-    backends 'html5', 'pdf'
-    attributes 'build-gradle':       file('build.gradle'),
-               'source-highlighter': 'coderay',
-               'toc':                'left',
-               'toc-title':          'Inhaltsverzeichnis',
-               'revdate':            BUILD_DATE,
-               'revnumber':          version,
-               'idprefix':           'id_',
-               'chapter-label':      '',
-               'icons':              'font',
-               'setanchors':         '',
-               'idseparator':        '-',
-               'endpoint-url':       'http://www.ingenieurbuero-peetz.de',
-               'imagesdir':          './images',
-               'docinfo1':           ''
-}
-
-build.dependsOn(['asciidoctor'])
-
 dependencies {
-    compile 'org.slf4j:slf4j-api:1.7.22'
-    testCompile 'junit:junit:4.12'
-    testCompile 'org.mockito:mockito-all:1.9.5'
+  asciidoctorGems 'rubygems:rouge:3.15.0'
 }
 
-checkstyle {
-    ignoreFailures = true
-    showViolations = false
+final BUILD_DATE = new Date().format('dd.MM.yyyy').toString()
+final DOK_VERSION = version
+
+asciidoctorPdf {
+  dependsOn asciidoctorGemsPrepare
+
+  baseDirFollowsSourceFile()
+
+  asciidoctorj {
+    attributes 'build-gradle': file('build.gradle'),
+    'revdate': BUILD_DATE,
+    'revnumber': DOK_VERSION,
+    'endpoint-url': 'http://www.ingenieurbuero-peetz.de',
+    'imagesdir': './images',
+    'toc-title': 'Inhaltsverzeichnis',
+    'chapter-label': '',
+    'icons': 'font',
+    'idprefix': 'id_',
+    'idseparator': '-',
+    'setanchors': '',
+    'docinfo1': ''
+  }
 }
 
-pmd {
-    ignoreFailures = true
-    ruleSets = ["basic", "braces", "junit"]
-}
-
-jar {
-    manifest {
-        attributes 'Implementation-Title': 'Generations', 'Implementation-Version': version
-    }
-}
+task asciidoctor(dependsOn: asciidoctorPdf)
+build.dependsOn(['asciidoctor'])
 
 wrapper {
-    gradleVersion = "5.6.1"
+    gradleVersion = "6.3"
 }
-