Fix bugs in CI

ci/lib.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+set_version() {
+  local code_server_version=${VERSION:-${TRAVIS_TAG:-}}
+  if [[ -z $code_server_version ]]; then
+    code_server_version=$(grep version ./package.json | head -1 | awk -F: '{ print $2 }' | sed 's/[",]//g' | tr -d '[:space:]')
+  fi
+  export VERSION=$code_server_version
+}