Generate changelog #3

	name: Generate changelog
	on:
	release:
	types: [created, edited]
	workflow_dispatch:

	permissions:
	contents: write
	pull-requests: write

	jobs:
	generate-changelog:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: Get first tag
	id: get_first_tag
	run: \|
	first_tag="$(git tag -l \| sort -V \| head -n 1)"
	echo "FIRST_TAG=${first_tag}" >> "$GITHUB_ENV"
	latest_tag="$(git describe --tags --abbrev=0 \|\| echo "${first_tag}")"
	echo "LATEST_TAG=${latest_tag}" >> "$GITHUB_ENV"

	- name: Generate changelog
	uses: janheinrichmerker/action-github-changelog-generator@v2.3
	with:
	token: ${{ secrets.GITHUB_TOKEN }}
	futureRelease: ${{ github.event.release.tag_name \|\| env.LATEST_TAG }}
	base: CHANGELOG.md
	output: CHANGELOG.md
	sinceTag: ${{ env.FIRST_TAG }}

	- name: Commit files
	run: \|
	git config --local user.email "action@github.com"
	git config --local user.name "GitHub Action"
	git add CHANGELOG.md
	git commit -m "Update changelog" \|\| echo "No changes to commit"

	- name: Push changes
	uses: ad-m/github-push-action@master
	with:
	github_token: ${{ secrets.GITHUB_TOKEN }}
	branch: main

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