Rebase upstream #156

	name: Rebase upstream

	on:
	workflow_dispatch:
	schedule:
	- cron: "15 14 * * *"

	permissions:
	contents: write

	jobs:
	rebase:
	runs-on: ubuntu-latest

	strategy:
	fail-fast: false
	matrix:
	include:
	- target: "nixos-unstable"
	upstream: "nixos-unstable"
	- target: "nixos-24.05"
	upstream: "nixos-24.05"
	- target: "backports-24.05"
	upstream: "nixos-24.05"

	steps:
	- uses: actions/cache@v4
	with:
	path: .git
	key: ${{ matrix.target }}-git-${{ hashFiles('.git') }}
	restore-keys: \|
	${{ matrix.target }}-git-

	- uses: actions/checkout@v4
	with:
	ref: ${{ matrix.target }}
	fetch-depth: 100
	token: ${{ secrets.GH_TOKEN_FOR_UPDATES }}

	- name: git setup
	run: \|
	git config --local user.email "41898282+github-actions[bot]@users.noreply.github.com"
	git config --local user.name "github-actions[bot]"

	- name: fetch upstream
	run: \|
	# might already be there if the cache was used
	git remote add upstream https://github.com/NixOS/nixpkgs.git \|\| true
	git fetch --no-tags --prune --no-recurse-submodules --depth 2000 upstream ${{ matrix.upstream }}

	- name: rebase
	run: \|
	git rebase upstream/${{ matrix.upstream }}

	- name: push
	run: \|
	git push --force-with-lease origin ${{ matrix.target }}

	- name: collect garbage
	run: \|
	git gc

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