adding a way to add additional JVM options

refs jenkinsci#10

src/main/java/org/spootnik/LeiningenBuilder.java

@@ -44,12 +44,15 @@ public class LeiningenBuilder extends Builder {
 
     private final String task;
     private String subdirPath;
+    private String jvmOpts;
+
 
     // Fields in config.jelly must match the parameter names in the "DataBoundConstructor"
     @DataBoundConstructor
-    public LeiningenBuilder(String task, String subdirPath) {
+    public LeiningenBuilder(String task, String subdirPath, String jvmOpts) {
         this.task = task;
         this.subdirPath = subdirPath;
+        this.jvmOpts = jvmOpts;
     }
 
     /**
@@ -63,6 +66,11 @@ public String getSubdirPath() {
         return subdirPath;
     }
 
+    public String getJvmOpts() {
+        return jvmOpts;
+    }
+
+
     @Override
     public boolean perform(AbstractBuild build, Launcher launcher, BuildListener listener) {
         // This is where you 'build' the project.
@@ -138,9 +146,17 @@ private ArgumentListBuilder getLeinCommand(AbstractBuild build, Launcher launche
 		args.add("-client");
 		args.add("-XX:+TieredCompilation");
 		args.add("-Xbootclasspath/a:" +  descriptor.getJarPath());
+
+                // TODO: handle also spaces within the options, like '-Dvalue="some string"'
+                for(String jo : jvmOpts.split(" ")) {
+                  if(! "".equals(jo)) {
+                    args.add(jo);
+                  }
+                }
+
 		args.add("-Dfile.encoding=UTF-8");
 		args.add("-Dmaven.wagon.http.ssl.easy=false");
-		args.add("-Dleiningen.original.pwd=" + workDir);
+                args.add("-Dleiningen.original.pwd=" + workDir);
 		args.add("-cp");
 		args.add(jarPath);
 		args.add("clojure.main");
@@ -223,7 +239,7 @@ public FormValidation doCheckJarPath(@QueryParameter String value)
 	}
 
         public boolean isApplicable(Class<? extends AbstractProject> aClass) {
-            // Indicates that this builder can be used with all kinds of project types 
+            // Indicates that this builder can be used with all kinds of project types
             return true;
         }
 
@@ -246,4 +262,3 @@ public boolean configure(StaplerRequest req, JSONObject formData) throws FormExc
         }
     }
 }
-

src/main/resources/org/spootnik/LeiningenBuilder/config.jelly

@@ -3,10 +3,13 @@
   <f:entry title="Leiningen Task Name and Arguments" field="task">
     <f:textbox default="jar" />
   </f:entry>
-  
+
   <f:advanced>
     <f:entry title="Sub-directory Path" field="subdirPath">
       <f:textbox/>
     </f:entry>
+    <f:entry title="JVM options" field="jvmOpts">
+      <f:textbox/>
+    </f:entry>
   </f:advanced>
 </j:jelly>

src/main/resources/org/spootnik/LeiningenBuilder/help-jvmOpts.html

@@ -0,0 +1,3 @@
+<div>
+	Provide JVM parameters.
+</div>