Make multi-module again.

.gitmodules

+[submodule "relast-preprocessor"]
+	path = relast-preprocessor
+	url = ../relast-preprocessor.git

build.gradle → ragconnect.base/build.gradle

+apply plugin: 'java-library'
+apply plugin: 'idea'
 apply plugin: 'jastadd'
 apply plugin: 'application'
 
+group = 'de.tudresden.inf.st'
+
 sourceCompatibility = 1.8
+targetCompatibility = 1.8
 
 mainClassName = 'org.jastadd.ragconnect.compiler.Compiler'
 
 repositories {
+        mavenCentral()
     jcenter()
 }
 
@@ -17,9 +23,11 @@ buildscript {
 }
 
 dependencies {
-    implementation project(':relast.preprocessor')
-    implementation group: 'com.github.spullara.mustache.java', name: 'compiler', version: '0.9.6'
+    implementation project(':relast-preprocessor')
+    implementation group: 'org.apache.logging.log4j', name: 'log4j-api', version: '2.11.2'
+    implementation group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.11.2'
     implementation group: 'org.apache.logging.log4j', name: 'log4j-jul', version: '2.11.2'
+    implementation group: 'com.github.spullara.mustache.java', name: 'compiler', version: '0.9.6'
     runtime group: 'org.jastadd', name: 'jastadd', version: '2.3.4'
     api group: 'net.sf.beaver', name: 'beaver-rt', version: '0.9.11'
 }
@@ -43,16 +51,8 @@ task newVersion() {
     }
 }
 
-sourceSets {
-    main {
-        java.srcDir "src/gen/java"
-    }
-}
-
-test {
-    useJUnitPlatform()
-
-    maxHeapSize = '1G'
+sourceSets.main.java {
+    srcDir "src/gen/java"
 }
 
 jar {
@@ -71,7 +71,7 @@ task relast(type: JavaExec) {
 
     args = [
             "../libs/relast.jar",
-            "../relast.preprocessor/src/main/jastadd/RelAst.relast",
+            "../relast-preprocessor/src/main/jastadd/RelAst.relast",
             "./src/main/jastadd/RagConnect.relast",
             "./src/main/jastadd/MustacheNodes.relast",
             "./src/main/jastadd/YAML.relast",
@@ -84,7 +84,7 @@ task relast(type: JavaExec) {
     ]
 
     inputs.files("../libs/relast.jar",
-            "../relast.preprocessor/src/main/jastadd/RelAst.relast",
+            "../relast-preprocessor/src/main/jastadd/RelAst.relast",
             "./src/main/jastadd/RagConnect.relast",
             "./src/main/jastadd/MustacheNodes.relast",
             "./src/main/jastadd/YAML.relast")
@@ -102,17 +102,17 @@ jastadd {
 
             java {
                 basedir ".."
-                include "relast.preprocessor/main/**/*.java"
-                include "relast.preprocessor/gen/**/*.java"
+                include "relast-preprocessor/main/**/*.java"
+                include "relast-preprocessor/gen/**/*.java"
                 include "ragconnect.base/src/main/**/*.java"
                 include "ragconnect.base/src/gen/**/*.java"
             }
 
             jastadd {
                 basedir ".."
-                include "relast.preprocessor/src/main/jastadd/**/*.ast"
-                include "relast.preprocessor/src/main/jastadd/**/*.jadd"
-                include "relast.preprocessor/src/main/jastadd/**/*.jrag"
+                include "relast-preprocessor/src/main/jastadd/**/*.ast"
+                include "relast-preprocessor/src/main/jastadd/**/*.jadd"
+                include "relast-preprocessor/src/main/jastadd/**/*.jrag"
                 include "ragconnect.base/src/main/jastadd/**/*.ast"
                 include "ragconnect.base/src/main/jastadd/**/*.jadd"
                 include "ragconnect.base/src/main/jastadd/**/*.jrag"
@@ -124,22 +124,22 @@ jastadd {
             scanner {
                 basedir ".."
                 include "ragconnect.base/src/main/jastadd/scanner/Header.flex",             [-5]
-                include "relast.preprocessor/src/main/jastadd/scanner/Preamble.flex",      [-4]
-                include "relast.preprocessor/src/main/jastadd/scanner/Macros.flex",        [-3]
+                include "relast-preprocessor/src/main/jastadd/scanner/Preamble.flex",       [-4]
+                include "relast-preprocessor/src/main/jastadd/scanner/Macros.flex",         [-3]
                 include "ragconnect.base/src/main/jastadd/scanner/Macros.flex",             [-3]
-                include "relast.preprocessor/src/main/jastadd/scanner/RulesPreamble.flex", [-2]
+                include "relast-preprocessor/src/main/jastadd/scanner/RulesPreamble.flex",  [-2]
                 include "ragconnect.base/src/main/jastadd/scanner/MappingContent.flex",     [-1]
                 include "ragconnect.base/src/main/jastadd/scanner/Keywords.flex"
-                include "relast.preprocessor/src/main/jastadd/scanner/Keywords.flex"
-                include "relast.preprocessor/src/main/jastadd/scanner/Symbols.flex",        [1]
-                include "relast.preprocessor/src/main/jastadd/scanner/RulesPostamble.flex", [2]
+                include "relast-preprocessor/src/main/jastadd/scanner/Keywords.flex"
+                include "relast-preprocessor/src/main/jastadd/scanner/Symbols.flex",        [1]
+                include "relast-preprocessor/src/main/jastadd/scanner/RulesPostamble.flex", [2]
             }
 
             parser {
                 basedir ".."
                 include "ragconnect.base/src/main/jastadd/parser/Preamble.parser"
                 include "ragconnect.base/src/main/jastadd/parser/RagConnect.parser"
-                include "relast.preprocessor/src/main/jastadd/parser/RelAst.parser"
+                include "relast-preprocessor/src/main/jastadd/parser/RelAst.parser"
             }
         }
     }