Add extra check for invalid UTF-8 BOM of IFC files #63

	name: Model validation

	on: [push, pull_request, workflow_dispatch]

	permissions:
	contents: read

	jobs:
	validate:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v4
	with:
	fetch-depth: 5
	- name: Setup python environment
	uses: actions/setup-python@v5
	with:
	python-version: 3.11
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install --user pyparsing lark-parser==0.12.0 networkx requests sqlalchemy sqlalchemy-utils pytest
	mkdir -p ~/.local/lib/python3.11/site-packages
	wget -q https://s3.amazonaws.com/ifcopenshell-builds/ifcopenshell-python-311-v0.7.0-f7c03db-linux64.zip
	unzip ifcopenshell-python-311-v0.7.0-f7c03db-linux64.zip -d ~/.local/lib/python3.11/site-packages
	git clone --depth 1 https://github.com/IfcOpenShell/step-file-parser
	pip install --user -r ./step-file-parser/requirements.in
	- name: Check for UTF-8 BOM
	run: "! find ./models -name '*.ifc' -print0 \| xargs -0 grep -l $'^\\xEF\\xBB\\xBF' \| grep ."
	- name: Validate IFC example files
	run: \|
	valid_count=0
	invalid_count=0
	set +e
	while IFS= read -r file; do
	printf "Validating $file ..."
	python ./step-file-parser/main.py "$file" > validate.log 2>&1
	exit_code=$?
	if [ $exit_code -eq 0 ]; then
	((valid_count++))
	printf " valid\n"
	else
	((invalid_count++))
	printf " invalid\n"
	fi
	done < <(find ./models -type f -name '*.ifc')
	echo "Number of valid files: $valid_count"
	echo "Number of invalid files: $invalid_count"
	set -e
	if [ $invalid_count -gt 0 ]; then
	exit 1
	fi
	- name: Model validation
	run: \|
	./validate.sh

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