Merge pull request #13 from abstractdog/cdpd_patcher_no_pom

skip pom.xml pig.version patching if repo is not maven based and there is no pom.xml

Author: abstractdog

src/main/scripts/cdpd-patcher

@@ -98,10 +98,15 @@ wget -nv -O $tmp "${patch_url}/${COMPONENT}-source.patch" ||
 wget -nv -O $tmp "${patch_url}/dag_build/${COMPONENT}-source.patch"
 
 git apply -p1 -C0 $tmp || git apply -3 -p1 -C0 $tmp
-if [[ "$build" < "7.2.1" && "$VERSION" != "7.0.2.1" ]];then
-	sed -i "s/pig.version>0.16.0.*</pig.version>0.16.0.${build}</" pom.xml
-else
-	sed -i "s/pig.version>0.16.0.*</pig.version>0.16.0</" pom.xml
+
+if test -f "pom.xml"; then
+  echo "found pom.xml, trying to patch pig version"
+  if [[ "$build" < "7.2.1" && "$VERSION" != "7.0.2.1" ]];then
+    sed -i "s/pig.version>0.16.0.*</pig.version>0.16.0.${build}</" pom.xml
+  else
+    sed -i "s/pig.version>0.16.0.*</pig.version>0.16.0</" pom.xml
+  fi
 fi
 
+
 echo "@@@ patched"