X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/3e4f493e89d831b319c585b3222004ffca5669f7..f1920d78123667716f2321d37ce37628603b2700:/test/common.sh.in

diff --git a/test/common.sh.in b/test/common.sh.in
index aa1e8455..3a216584 100644
--- a/test/common.sh.in
+++ b/test/common.sh.in
@@ -32,6 +32,10 @@ unset LANG LC_ALL LC_CTYPE
 MHTMPDIR=$MH_TEST_DIR/Mail
 export MHTMPDIR
 
+#### If you're reading this .... you can set MH_TEST_NOCLEANUP to prevent
+#### the test suite from cleaning up the results of a test run, if you need
+#### to do manual debugging on a test.
+
 output_md5()
 {
   #### Output just the checksum.  If the filename needs to appear on
@@ -280,7 +284,7 @@ setup_test ()
   export PATH
 
   # clean old test data
-  trap "cd $MH_TEST_DIR; rm -rf '$MH_TEST_DIR/Mail'" 0
+  trap "test -z $MH_TEST_NOCLEANUP && (cd $MH_TEST_DIR; rm -rf '$MH_TEST_DIR/Mail')" 0
   # setup test data
   mkdir -p "$MH_TEST_DIR/Mail" || exit 1
   cat > "$MH" <<EOF || exit 1