Generate README with GH Actions #5

	name: Generate README

	on:
	pull_request:
	paths:
	- "docs/*.md"
	- "src/sim_recon/cli/parsing.py"
	- "src/sim_recon/settings/formatting.py"

	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ["3.12"]
	steps:
	- uses: actions/checkout@v4
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v3
	with:
	python-version: ${{ matrix.python-version }}
	- name: Copy template
	run: cp -f docs/template.md README.md
	- name: Install (without dependencies)
	run: \|
	python -m pip install --upgrade pip
	python -m pip install . --no-deps
	- name: Get argparse help outputs
	run: \|
	export OTF_HELP_OUTPUT=$(python -c "from sim_recon.cli.parsing import parse_otf_args; parse_otf_args(("--help",))")
	export RECON_HELP_OUTPUT=$(python -c "from sim_recon.cli.parsing import parse_recon_args; parse_recon_args(("--help",))")
	- name: Get sections
	run: \|
	cd docs/
	for file in sections/*; do
	if [ -f "$file" ]; then
	var_name="$(echo "${file^^}" \| tr ./ _)"
	echo "Saving $file to $var_name"
	# Export file contents to an environment variable named from the path, e.g.:
	# 'section/test_file.md' would be 'SECTION_TEST_FILE_MD'
	export "${!var_name}"="$(<"$file")"
	envsubst < "${!var_name}" # Substitute environment variables into each section (not other sections)
	fi
	done
	- name: Fill template
	run: \|
	envsubst < README.md

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