TAG=v$(cat package.json | grep '"version":' | cut -d '"' -f 4)

if [ $TAG == 'v0.0.0' ]; then
  exit 0
fi

REG=^$(echo $TAG | sed 's/\./\\./g')$

if [ -z "$(git tag -l | grep $REG)" ]; then
  echo new version detected: $TAG
  echo ::set-output name=tag::$TAG
fi