* build.xml: Build speedups:

- Don't distclean in the updaterRouter target
      - Don't make prepUpdate and prepupdateSmall depend
        on distclean
      - Don't make susimail build always clean
      - Make pkg depend on distclean to be sure
      - Clean out more routerconsole and susidns files in 'ant clean'
      - i2ptunnel, routerconsole, susidns:
        Only build WEB-INF when necessary
      - systray: Only build jar when necessary
      - Don't build i2psnark standalone for the updater target

apps/i2ptunnel/java/build.xml

@@ -30,7 +30,7 @@
              basedir="../jsp/" excludes="web.xml, *.java, *.jsp">
         </war>
     </target>
-    <target name="precompilejsp">
+    <target name="precompilejsp" unless="precompilejsp.uptodate">
         <delete dir="../jsp/WEB-INF/" />
         <delete file="../jsp/web-fragment.xml" />
         <delete file="../jsp/web-out.xml" />
@@ -72,6 +72,11 @@
             <replacefilter token="&lt;!-- precompiled servlets --&gt;" value="${jspc.web.fragment}" />
         </replace>
     </target>
+
+    <uptodate property="precompilejsp.uptodate" targetfile="../jsp/web-out.xml">
+        <srcfiles dir= "../jsp" includes="*.jsp, *.html, web.xml"/>
+    </uptodate>
+
     <target name="javadoc">
         <mkdir dir="./build" />
         <mkdir dir="./build/javadoc" />
@@ -84,6 +89,9 @@
     </target>
     <target name="clean">
         <delete dir="./build" />
+        <delete dir="../jsp/WEB-INF/" />
+        <delete file="../jsp/web-fragment.xml" />
+        <delete file="../jsp/web-out.xml" />
     </target>
     <target name="cleandep" depends="clean">
 	<!-- ministreaming will clean core -->

apps/routerconsole/java/build.xml

@@ -35,7 +35,6 @@
                 <attribute name="Class-Path" value="i2p.jar router.jar" />
             </manifest>
         </jar>
-        
         <delete dir="./tmpextract" />
         <unjar src="../../jrobin/jrobin-1.4.0.jar" dest="./tmpextract" />
         <jar destfile="./build/routerconsole.jar" basedir="./tmpextract" update="true" />
@@ -48,7 +47,7 @@
              basedir="../jsp/" excludes="web.xml, *.java, *.jsp, web-fragment.xml">
         </war>
     </target>
-    <target name="precompilejsp">
+    <target name="precompilejsp" unless="precompilejsp.uptodate">
         <delete dir="../jsp/WEB-INF/" />
         <delete file="../jsp/web-fragment.xml" />
         <delete file="../jsp/web-out.xml" />
@@ -109,6 +108,11 @@
             <replacefilter token="&lt;!-- precompiled servlets --&gt;" value="${jspc.web.fragment}" />
         </replace>
     </target>
+
+    <uptodate property="precompilejsp.uptodate" targetfile="../jsp/web-out.xml">
+        <srcfiles dir= "../jsp" includes="**/*.jsp, **/*.html, susimail/susimail, web.xml"/>
+    </uptodate>
+
     <target name="javadoc">
         <mkdir dir="./build" />
         <mkdir dir="./build/javadoc" />
@@ -121,6 +125,9 @@
     </target>
     <target name="clean">
         <delete dir="./build" />
+        <delete dir="../jsp/WEB-INF/" />
+        <delete file="../jsp/web-fragment.xml" />
+        <delete file="../jsp/web-out.xml" />
     </target>
     <target name="cleandep" depends="clean">
 	<!-- router will clean core -->

apps/susidns/src/build.xml

@@ -27,10 +27,11 @@
 		<javac debug="true" deprecation="on" source="1.5" target="1.5"
  			classpathref="cp" destdir="${bin}" srcdir="${src}" includes="**/*.java" />
 	</target>
-    <target name="precompilejsp">
+    <target name="precompilejsp" unless="precompilejsp.uptodate">
         <delete file="WEB-INF/web-fragment.xml" />
         <delete file="WEB-INF/web-out.xml" />
     	<mkdir dir="${tmp}" />
+        <echo message="Ignore any warning about /WEB-INF/web.xml not found" />
         <java classname="org.apache.jasper.JspC" fork="true" classpathref="cp">
             <arg value="-d" />
             <arg value="WEB-INF/classes" />
@@ -51,6 +52,11 @@
             <replacefilter token="&lt;!-- precompiled servlets --&gt;" value="${jspc.web.fragment}" />
         </replace>
     </target>
+
+    <uptodate property="precompilejsp.uptodate" targetfile="WEB-INF/web-out.xml">
+        <srcfiles dir= "." includes="jsp/*.jsp, WEB-INF/web-template.xml"/>
+    </uptodate>
+
     <target name="all" depends="compile,precompilejsp,war"/> 
     <target name="war"> 
         <war destfile="${project}.war" webxml="WEB-INF/web-out.xml">
@@ -74,7 +80,9 @@
       <delete>
         <fileset dir="." includes="**/*.class" />
         <fileset dir="." includes="tmp" />
+        <fileset dir="WEB-INF" includes="web-fragment.xml, web-out.xml" />
       </delete>
+      <delete dir="${bin}" />
     </target>
     <target name="distclean" depends="clean" />
 </project>

apps/susimail/build.xml

@@ -5,7 +5,7 @@
     <target name="builddep">
         <ant dir="../jetty/" target="build" />
     </target>
-    <target name="compile" depends="clean">
+    <target name="compile">
         <javac 
             srcdir="./src/src"
             debug="true" deprecation="off" source="1.5" target="1.5" 

apps/systray/java/build.xml

@@ -18,7 +18,7 @@
             includes="**/*.java"
             classpath="./lib/systray4j.jar:../../../core/java/build/i2p.jar" />
     </target>
-    <target name="jar" depends="compile">
+    <target name="jar" depends="compile" unless="jar.uptodate">
         <mkdir dir="./build/jar_temp" />
         <copy todir="./build/jar_temp">
             <fileset dir="./build/obj" includes="**/*.class" />
@@ -31,6 +31,11 @@
         </jar>
         <delete dir="./build/jar_temp" />
     </target>
+
+    <uptodate property="jar.uptodate" targetfile="./build/systray.jar">
+        <srcfiles dir= "src" includes="**/*.java" />
+    </uptodate>
+
     <target name="javadoc">
         <mkdir dir="./build" />
         <mkdir dir="./build/javadoc" />