From 41c0976f9e36d2dea879a81f765dba9a5bbbddc4 Mon Sep 17 00:00:00 2001
From: Robert Muir <rmuir@apache.org>
Date: Tue, 31 May 2011 14:25:27 +0000
Subject: [PATCH] LUCENE-3165: fail nicely if you try to do things that need a
 subversion checkout

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1129694 13f79535-47bb-0310-9956-ffa450edef68
---
 lucene/build.xml | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/lucene/build.xml b/lucene/build.xml
index 45165a325f6..34e885698e9 100644
--- a/lucene/build.xml
+++ b/lucene/build.xml
@@ -376,7 +376,7 @@
   <!-- ================================================================== -->
   <!-- Populates properties svn.URL and svn.Revision using "svn info".    -->
   <!-- ================================================================== -->
-  <target name="get-svn-info">
+  <target name="get-svn-info" depends="check-svn">
     <exec dir="." executable="${svn.exe}" outputproperty="svn.info" failonerror="true">
       <arg value="info"/>
     </exec>
@@ -392,6 +392,16 @@
     </loadproperties>
   </target>
 
+   <target name="check-svn">
+    <sequential>
+      <exec dir="." executable="${svnversion.exe}" outputproperty="svn.ver"/>
+      <fail message="A subversion checkout is required for this target">
+        <condition>
+           <equals arg1="${svn.ver}" arg2="exported"/>
+        </condition>
+      </fail>
+    </sequential>
+  </target>
 
   <!-- ================================================================== -->
   <!-- same as package-tgz-src. it is just here for compatibility.        -->