diff --git a/prepare_vendor.sh b/prepare_vendor.sh
new file mode 100644
index 0000000..7fc8fa9
--- /dev/null
+++ b/prepare_vendor.sh
@@ -0,0 +1,84 @@
+#!/bin/bash
+
+BASHLS_URL=$(rpmspec -P *.spec | grep Source0 | sed -e 's/Source0:[ ]*//g')
+BASHLS_TARBALL=$(basename $BASHLS_URL)
+BASHLS_PKGVERSION=$(rpmspec -P *.spec | grep ^Version | sed -e 's/Version:[ ]*//g')
+BASHLS_PKGNAME="bash-language-server"
+BASHLS_PKGDIR="$(pwd)"
+BASHLS_TMPDIR=$(mktemp --tmpdir -d bashls-XXXXXXXX)
+BASHLS_PATH="$BASHLS_TMPDIR/$BASHLS_PKGNAME-server-$BASHLS_PKGVERSION"
+
+echo "URL:     $BASHLS_URL"
+echo "TARBALL: $BASHLS_TARBALL"
+echo "NAME:    $BASHLS_PKGNAME"
+echo "VERSION: $BASHLS_PKGVERSION"
+echo "PATH:    $BASHLS_PATH"
+
+cleanup_tmpdir() {
+    popd 2>/dev/null
+    rm -rf $BASHLS_TMPDIR
+}
+trap cleanup_tmpdir SIGINT
+
+cleanup_and_exit() {
+    cleanup_tmpdir
+    if test "$1" = 0 -o -z "$1" ; then
+        exit 0
+    else
+        exit $1
+    fi
+}
+
+if [ ! -w "$BASHLS_TARBALL" ]; then
+    wget "$BASHLS_URL"
+fi
+
+
+tar -xf $BASHLS_TARBALL -C $BASHLS_TMPDIR
+
+
+pushd $BASHLS_PATH
+
+export YARN_CACHE_FOLDER="$(pwd)/.package-cache"
+echo ">>>>>> Install npm modules"
+yarn install --frozen-lockfile
+if [ $? -ne 0 ]; then
+    echo "ERROR: yarn install failed"
+    cleanup_and_exit 1
+fi
+
+echo ">>>>>> Cleanup object dirs"
+find node_modules/ -type d -name "*.o.d" | xargs rm -rf
+find node_modules/ -type d -name "__pycache__" | xargs rm -rf
+
+
+echo ">>>>>> Cleanup object files"
+find node_modules/ -name "*.node" | xargs rm -rf
+
+find node_modules/ -name "*.dll" | grep -v signal-client | xargs rm -f
+find node_modules/ -name "*.dylib" -delete
+find node_modules/ -name "*.so" -delete
+find node_modules/ -name "*.o" -delete
+find node_modules/ -name "*.a" -delete
+find node_modules/ -name "*.snyk-*.flag" -delete
+find node_modules/ -name "builderror.log" -delete
+find node_modules/ -name ".deps" -type d | xargs rm -rf
+
+
+echo ">>>>>> Cleanup build info"
+find node_modules/ -name "Makefile" -delete
+find node_modules/ -name "*.target.mk" -delete
+find node_modules/ -name "config.gypi" -delete
+find node_modules/ -name "package.json" -exec sed -i "s#$BASHLS_PATH#/tmp#g" {} \;
+
+
+echo ">>>>>> Package vendor files"
+rm -f $BASHLS_PKGDIR/${BASHLS_PKGNAME}-${BASHLS_PKGVERSION}-vendor.tar.xz
+XZ_OPT="-T$(nproc)" tar cJf $BASHLS_PKGDIR/${BASHLS_PKGNAME}-${BASHLS_PKGVERSION}-vendor.tar.xz .package-cache
+if [ $? -ne 0 ]; then
+    cleanup_and_exit 1
+fi
+
+popd
+
+cleanup_and_exit 0