add packaging script

package_artifact.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+test -e xfunc_artifact.zip && rm xfunc_artifact.zip
+
+DIR=$(mktemp -d)
+cp -r ./ $DIR/
+
+rm $DIR/package_artifact.sh
+
+# only keep whitelisted files in oopsla_examples/, then delete whitelist
+for file in oopsla_examples/*.xfn; do
+    grep -q $(basename $file) oopsla_examples/whitelist.txt || rm $DIR/$file
+done
+rm $DIR/oopsla_examples/whitelist.txt
+
+# remove potential build artifacts
+rm -r $DIR/target/
+
+rm -rf $DIR/.git/
+rm -rf $DIR/.gitignore
+rm -rf $DIR/.github/
+rm -rf $DIR/.cargo/
+
+pushd $DIR
+zip -r xfunc_artifact.zip .
+popd
+mv $DIR/xfunc_artifact.zip .
+rm -rf $DIR