1set -ex
2
3if [ ! -d "webidl2.js" ]; then
4  git clone https://github.com/w3c/webidl2.js.git
5fi
6cd webidl2.js
7npm install
8npm run build-debug
9HASH=$(git rev-parse HEAD)
10cd ..
11cp webidl2.js/dist/webidl2.js lib/
12echo "Currently using webidl2.js@${HASH}." > lib/VERSION.md
13