Reuse the same reader across ReadChunk calls so that prefetched blocks are not discared. #155

	name: Build and test

	on:
	pull_request:
	branches: [main]

	jobs:
	test:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ['3.9', '3.10', '3.11']
	env:
	DOCKER_BUILDKIT: 1
	TMP_FOLDER: /tmp/array_record
	steps:
	- uses: actions/checkout@v2
	- name: Build Docker image
	run: \|
	docker build --progress=plain --no-cache \
	--build-arg PYTHON_VERSION=${{ matrix.python-version }} \
	-t array_record:latest - < oss/build.Dockerfile
	- name: Build wheels and test
	run: \|
	docker run --rm -a stdin -a stdout -a stderr \
	--env PYTHON_VERSION=${{ matrix.python-version }} \
	--volume ${GITHUB_WORKSPACE}:${TMP_FOLDER} --name array_record array_record:latest \
	bash oss/build_whl.sh
	- name: Install in a blank Docker and test the import in Python
	run: \|
	docker run --rm -a stdin -a stdout -a stderr \
	--env PYTHON_VERSION=${{ matrix.python-version }} \
	--volume ${GITHUB_WORKSPACE}:/root \
	python:${{ matrix.python-version }} bash -c "
	ARRAY_RECORD_VERSION=\$(python /root/setup.py --version 2>&1 /dev/null)
	SHORT_PYTHON_VERSION=\${PYTHON_VERSION//./}
	ARRAY_RECORD_WHEEL=\"/root/all_dist/array_record-\${ARRAY_RECORD_VERSION}-py\${SHORT_PYTHON_VERSION}-none-any.whl\"
	python -m pip install \${ARRAY_RECORD_WHEEL} &&
	python -c 'import array_record' &&
	python -c 'from array_record.python import array_record_data_source'
	"

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