Use SVN revision as buildnumber if available, default to zero if that fails. Zero isn't really a valid build number, but this allows a full build if working offline.

git-svn-id: https://svn2.assembla.com/svn/romraider/trunk@202 38686702-15cf-42e4-a595-3071df8bf5ea

build.xml

@@ -77,9 +77,15 @@
         <property name="optimize" value="on"/>
         <property name="deprecation" value="on"/>
 
-        <!-- get the current svn revision (needed by version.properties) -->
+        <!-- get the current svn revision (needed by version.properties) - if repository is unavailable, this will be zero -->
         <macro_svn_revision repository="https://svn2.assembla.com/svn/romraider" property="svn.revision"/>
 
+        <!-- Set the buildnumber to be the revision fetched from the repository, but default to zero for 
+                offline work -->
+    	<condition property="buildnumber" value="${svn.revision}" else="0">
+    		<isset property="svn.revision"/>
+    	</condition>
+
     	<!-- version properties are set in this file, both for the product itself and
 		        for some of the external dependencies (jar files and such) -->
         <property file="version.properties"/>
@@ -240,7 +246,7 @@
         <attribute name="property"/>
         <sequential>
             <tempfile property="svninfo.log"/>
-            <exec executable="svn" output="${svninfo.log}">
+            <exec executable="svn" output="${svninfo.log}" failonerror="false">
                 <arg line="info @{repository}"/>
             </exec>
             <loadfile property="@{property}" srcFile="${svninfo.log}">

version.properties

@@ -20,7 +20,7 @@ release_notes=release_notes.txt
 version.major=0
 version.minor=5
 version.patch=1
-version.buildnumber=${svn.revision}
+version.buildnumber=${buildnumber}
 version.extra=Beta
 version.extra1=