ci: automate changelog creation for release #76

	name: 'Release'

	on:
	push:
	tags: 'v[0-9]+.[0-9]+.[0-9]+'

	workflow_dispatch:
	inputs:
	version:
	description: 'Release version (vX.Y.Z)'
	required: true
	type: string

	permissions:
	contents: write

	jobs:
	build:
	name: 'Build & Test'
	uses: ./.github/workflows/build.yml

	release:
	name: 'Release'
	needs: [build]
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	- uses: actions/download-artifact@v4

	- name: 'Set tag name'
	id: tag
	run: \|
	if [[ "${{ github.event_name }}" = "workflow_dispatch" ]]; then
	tag="${{ inputs.version }}"
	else
	tag="${{ github.ref_name }}"
	fi
	echo "tag=$tag" >> $GITHUB_OUTPUT

	- name: 'Create draft release (and upload release artifacts)'
	env:
	GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	run: \|
	for dir in $(ls -d1 myrc-*/); do
	dir="${dir%/}"
	chmod +x "$dir/myrc"
	tar -czf "$dir.tar.gz" -C "$dir" myrc
	done

	tag="${{ steps.tag.outputs.tag }}"
	body="$(awk "/## \\[${tag#v}\\]/{flag=1;next}/## \\[/{flag=0}flag" CHANGELOG.md)"

	gh release create "$tag" --draft --generate-notes --notes "$body" *.tar.gz

	# the "$tag" value is incorrect for draft release (the correct one
	# returns previous gh release command)
	#- name: 'Publish release'
	# env:
	# GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	# run: gh release edit "$tag" --draft=false

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