Update #206

	name: Update

	on:
	schedule:
	- cron: '17 7 * * *'
	workflow_dispatch:

	jobs:

	update:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@master
	with:
	token: ${{ secrets.GITHUB_TOKEN }}

	- uses: petronny/git-config-user@master

	- name: Update
	run: \|
	set -ex

	curl -L -o new.md5 "http://os.archlinuxarm.org/os/ArchLinuxARM-aarch64-latest.tar.gz.md5"
	cmp --silent ArchLinuxARM-aarch64-latest.tar.gz.md5 new.md5 && exit 0 \|\| echo

	mv new.md5 ArchLinuxARM-aarch64-latest.tar.gz.md5
	curl -L -o ArchLinuxARM-aarch64-latest.tar.gz "http://os.archlinuxarm.org/os/ArchLinuxARM-aarch64-latest.tar.gz"
	md5sum -c ArchLinuxARM-aarch64-latest.tar.gz.md5

	echo ${{ secrets.DOCKER_TOKEN }} \| docker login -u ${{ secrets.DOCKER_USERNAME }} --password-stdin
	docker buildx build --platform linux/arm64 -t arch4edu/archlinuxarm:latest --push .

	git config --global --add safe.directory $(realpath .)
	git add ArchLinuxARM-aarch64-latest.tar.gz.md5
	git commit -m "[$(date)] auto update"
	git push

Provide feedback