Make configurable data(git,db) dir using env vars

src/main/scala/servlet/AutoUpdateListener.scala

@@ -112,6 +112,7 @@ class AutoUpdateListener extends org.h2.server.web.DbStarter {
   private val logger = LoggerFactory.getLogger(classOf[AutoUpdateListener])
   
   override def contextInitialized(event: ServletContextEvent): Unit = {
+    event.getServletContext.setInitParameter("db.url", s"jdbc:h2:${Directory.DatabaseHome}")
     super.contextInitialized(event)
     logger.debug("H2 started")
     

src/main/scala/util/Directory.scala

@@ -7,11 +7,16 @@ import java.io.File
  */
 object Directory {
 
-  val GitBucketHome = new File(System.getProperty("user.home"), "gitbucket").getAbsolutePath
+  val GitBucketHome = (scala.util.Properties.envOrNone("GITBUCKET_HOME") match {
+    case Some(env) => new File(env)
+    case None => new File(System.getProperty("user.home"), "gitbucket")
+  }).getAbsolutePath
 
   val GitBucketConf = new File(GitBucketHome, "gitbucket.conf")
   
   val RepositoryHome = s"${GitBucketHome}/repositories"
+
+  val DatabaseHome = s"${GitBucketHome}/data"
   
   /**
    * Repository names of the specified user.

src/main/webapp/WEB-INF/web.xml

@@ -55,11 +55,6 @@
     <listener-class>servlet.AutoUpdateListener</listener-class>
   </listener>
   
-  <context-param>
-    <param-name>db.url</param-name>
-    <param-value>jdbc:h2:~/gitbucket/data</param-value>
-  </context-param>
-  
   <context-param>
     <param-name>db.user</param-name>
     <param-value>sa</param-value>