[maven-release-plugin] prepare release 1.0-a4 #1

	name: 'prepare release'

	on:
	push:
	tags:
	- '[0-9]+.[0-9]+*'
	permissions:
	# allow a write access to GitHub Releases
	contents: write

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: '3.11'

	- name: Set up JDK
	uses: actions/setup-java@v4
	with:
	java-version: 17
	distribution: 'temurin'
	cache: 'maven'

	- name: Install build dependencies
	run: pip install build

	- name: Build
	env:
	SETUPTOOLS_SCM_PRETEND_VERSION_FOR_jjava: ${{ github.ref_name }}
	run: \|
	mvn clean verify -U
	python -m build

	- name: Collect the release distributions
	run: \|
	mkdir -p release/
	cp jjava/target/jjava-${{ github.ref_name }}-kernelspec.zip release/
	cp -r dist/* release/

	- name: Store the release distributions
	uses: actions/upload-artifact@v4
	with:
	name: release-distributions
	path: release/
	if-no-files-found: error

	prepare-release:
	runs-on: ubuntu-latest
	needs:
	- build

	steps:
	- name: Download distributions
	uses: actions/download-artifact@v4
	with:
	name: release-distributions
	path: release/

	- name: Create release
	id: create_release
	uses: softprops/action-gh-release@v2
	with:
	tag_name: ${{ github.ref_name }}
	body: JJava ${{ github.ref_name }} release
	draft: true
	prerelease: false
	files: release/*
	fail_on_unmatched_files: true

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