fix: use awk state machine for NEWS.md extraction in release workflow #2

	on:
	push:
	tags:
	- 'v*'

	name: Create Release

	permissions:
	contents: write

	jobs:
	release:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	- name: Validate tag matches DESCRIPTION version
	run: \|
	TAG_VERSION="${GITHUB_REF_NAME#v}"
	PKG_VERSION=$(grep '^Version:' DESCRIPTION \| sed 's/Version: //')
	if [ "$TAG_VERSION" != "$PKG_VERSION" ]; then
	echo "::error::Tag version ($TAG_VERSION) does not match DESCRIPTION version ($PKG_VERSION)"
	exit 1
	fi

	- name: Extract release notes from NEWS.md
	id: notes
	run: \|
	TAG_VERSION="${GITHUB_REF_NAME#v}"
	# Extract content between this version's ## header and the next ## header
	awk "/^## v${TAG_VERSION}/{found=1; next} /^## /{found=0} found" NEWS.md > release_notes.txt
	if [ ! -s release_notes.txt ]; then
	echo "::error::No release notes found for v${TAG_VERSION} in NEWS.md"
	exit 1
	fi
	echo "Release notes:"
	cat release_notes.txt

	- name: Create GitHub Release
	uses: softprops/action-gh-release@v2
	with:
	body_path: release_notes.txt
	generate_release_notes: false
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

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