cleaner davis dependency

build.gradle

@@ -34,7 +34,7 @@ repositories {
         url =  "https://repo1.maven.org/maven2/io/jbotsim/"
     }
     flatDir {
-        dirs "davis/lib"
+        dirs davisInstall + File.separator + "lib"
     }
 }
 
@@ -43,14 +43,14 @@ repositories {
  * contents to the build directory
  */
 task downloadZipFile(type: Download) {
-    src 'http://pageperso.lif.univ-mrs.fr/~emmanuel.godard/udavis-0.7rc2.zip'
-    dest new File('davis', 'udavis-0.7rc2.zip')
+    src 'http://pageperso.lif.univ-mrs.fr/~emmanuel.godard/davis-beta-' + davisVersion
+    dest new File(davisInstall, 'davis-beta-' + davisVersion)
     overwrite false // to download only once
 }
 
 task downloadAndUnzipFile(dependsOn: downloadZipFile, type: Copy) {
     from zipTree(downloadZipFile.dest)
-    into 'davis'
+    into davisInstall
 }
 
 defaultTasks 'downloadAndUnzipFile'
@@ -63,8 +63,8 @@ dependencies {
     compile name: 'antlr4-annotations-4.2'
     compile name: 'antlr4-runtime-4.2'
     compile name: 'commons-cli-1.4'
-    compile name: 'davis-core-0.5.2-93-g2a88e16'
-    compile name: 'davis-ui-0.5.2-93-g2a88e16'
+    compile name: 'davis-core-' + davisVersion
+    compile name: 'davis-ui-' + davisVersion
     compile name: 'digraph-parser-1.0'
     compile name: 'org.abego.treelayout.core-1.0.1'
     compile name: 'tools'

gradle.properties

 # Define jbotsim dependency version
 jbotsimVersion = 1.0.0
-
+# Define davis version
+davisVersion = 0.7rc2
+# Define davis install directory
+davisInstall = davis