eobuilder: clean after any kind of exit

eobuilder

@@ -133,7 +133,13 @@ PROJECT_FULL_NAME=`python setup.py --fullname`
 BUILD_DIR="$EOBUILDER_TMP/$PROJECT_NAME"
 COMMIT_NUMBER=`git log -n1 | grep 'commit' | sed 's/commit\s*//'`
 
-rm -rf $BUILD_DIR
+function cleaning() {
+    echo "+ Cleaning ..."
+    rm -rf $BUILD_DIR
+}
+
+cleaning
+trap cleaning EXIT
 
 if ! is_something_to_build $PROJECT_NAME $PROJECT_VERSION; then
     echo "+ Everything already build !"
@@ -250,6 +256,3 @@ done
 echo "+ Updating repository ..."
 ssh root@leucas.entrouvert.org "/etc/cron.hourly/process-incoming"
 
-echo "+ Cleaning ..."
-rm -rf $BUILD_DIR
-