New: Auto Draft Release workflow. (#2) #1

	name: Draft Release on Merge

	on:
	push:
	branches:
	- main

	jobs:
	draft-release:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v2

	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: '3.x'

	- name: Install toml
	run: pip install toml

	- name: Get version from pyproject.toml
	id: get_version
	run: \|
	VERSION=$(python -c "import toml; print(toml.load('pyproject.toml')['tool']['poetry']['version'])")
	echo "::set-output name=version::$VERSION"

	- name: Generate release notes
	id: generate_release_notes
	run: \|
	echo "Release notes for version ${{ steps.get_version.outputs.version }}" > release_notes.md
	git log $(git describe --tags --abbrev=0 2>/dev/null \|\| echo HEAD)..HEAD --pretty=format:"- %s" >> release_notes.md

	- name: Create Release Draft
	id: create_release
	uses: actions/create-release@v1
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	with:
	tag_name: v${{ steps.get_version.outputs.version }}
	release_name: Release v${{ steps.get_version.outputs.version }}
	body_path: release_notes.md
	draft: true

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