Upgrade to React 18 #267

	name: Check tree-shakeability
	on: [ pull_request ]
	jobs:
	build:
	runs-on: ubuntu-latest
	permissions:
	pull-requests: write
	concurrency: ci-treeshake-${{ github.ref }}
	steps:
	- uses: actions/checkout@v2
	- name: Setup Node.js with Yarn cache
	uses: actions/setup-node@v2
	with:
	node-version: '14'
	cache: 'yarn'

	- name: Install dependencies
	run: yarn --frozen-lockfile

	- name: Build artifacts
	run: yarn build

	- name: Run agadoo
	id: agadoo
	run: \|
	# Run Agadoo and store the output for further usage
	# We store the process stdout and stderr to tmp files
	STDOUT_F=$(mktemp)
	STDERR_F=$(mktemp)
	# Run agadoo and capture errors without breaking the workflow
	$(npx agadoo 2> $STDERR_F > $STDOUT_F) && true

	# Infer the result from the first word of the last line
	RET="$(cat $STDERR_F \| tail -1 \| cut -d' ' -f 1)"

	# In order to be used in GH actions `echo "::set-output` the
	# multi-line output must be escaped.
	STDOUT="$(cat $STDOUT_F)"
	STDOUT="${STDOUT//'%'/%25}"
	STDOUT="${STDOUT//$'\n'/%0A}"
	STDOUT="${STDOUT//$'\r'/%0D}"
	STDERR="$(cat $STDERR_F)"
	STDERR="${STDERR//'%'/%25}"
	STDERR="${STDERR//$'\n'/%0A}"
	STDERR="${STDERR//$'\r'/%0D}"
	echo "::set-output name=stdout::$STDOUT"
	echo "::set-output name=stderr::$STDERR"
	if [[ $RET == 'Success!' ]]; then
	echo "::set-output name=status::tree-shakeable"
	else
	echo "::set-output name=status::not tree-shakeable"
	fi
	echo "$STDOUT"
	echo ""
	echo "$STDERR"
	# Clean-up
	rm $STDOUT_F
	rm $STDERR_F
	exit 0
	- name: Fail if cannot tree-shake
	if: ${{ steps.agadoo.outputs.status == 'not tree-shakeable' }}
	run: exit 1

Provide feedback