+ if command -v pixz > /dev/null; then
+ XZ=pixz
+ else
+ XZ=xz
+ fi
+
+ if [ ! -d "${CORPUS_DIR}/manifest" ]; then
+
+ printf "Unpacking manifests\n"
+ tar --extract --use-compress-program ${XZ} --strip-components=1 \
+ --directory ${TEST_DIRECTORY}/corpus \
+ --wildcards --file ../download/notmuch-email-corpus-${PERFTEST_VERSION}.tar.xz \
+ 'notmuch-email-corpus/manifest/*'