add ci #1

	name: build
	on:
	push:
	paths-ignore:
	- 'README.org'
	- '.guix-authorizations'
	- '.guix-channel'
	pull_request:
	schedule:
	# weekly builds, making sure everything still works with guix-proper
	- cron: '39 3 * * 0'
	jobs:
	build:
	name: Build package
	runs-on: ubuntu-latest
	strategy:
	# building independent packages, don’t abort entire build if one fails
	fail-fast: false
	matrix:
	package:
	- rust-bin
	steps:
	- name: Guix cache
	uses: actions/cache@v2
	with:
	path: ~/.cache/guix
	# use a key that (almost) never matches
	key: guix-cache-${{ github.sha }}
	restore-keys: \|
	guix-cache-
	- name: Install Guix
	uses: PromyLOPh/guix-install-action@v1
	- name: Checkout
	uses: actions/checkout@v2
	- name: Lint package
	run: \|
	guix lint -L . ${{ matrix.package }} \|& sed -nre 's#(.):([0-9]+):([0-9]+): (.)$#::warning file=\1,line=\2,col=\3::\4#gp'
	- name: Build package
	run: guix build -L . ${{ matrix.package }}

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