PRESERVE_MERGES=
STRATEGY=
VERBOSE=
+test -d "$REWRITTEN" && PRESERVE_MERGES=t
+test -f "$DOTEST"/strategy && STRATEGY="$(cat "$DOTEST"/strategy)"
+test -f "$DOTEST"/verbose && VERBOSE=t
warn () {
echo "$*" >&2
echo $HEAD > "$DOTEST"/head
echo $UPSTREAM > "$DOTEST"/upstream
echo $ONTO > "$DOTEST"/onto
+ test -z "$STRATEGY" || echo "$STRATEGY" > "$DOTEST"/strategy
test t = "$VERBOSE" && : > "$DOTEST"/verbose
if [ t = "$PRESERVE_MERGES" ]
then