Expose version information using environment variables #410

	name: ci
	on: [push, pull_request]

	jobs:
	build:
	runs-on: ubuntu-20.04
	strategy:
	fail-fast: false
	matrix:
	package: [evil, magit, realgud, edts, elpher, which-key-posframe]
	steps:
	- name: checkout package-build
	uses: actions/checkout@v2
	with:
	path: package-build
	fetch-depth: 1

	- name: checkout melpa
	uses: actions/checkout@v2
	with:
	path: melpa
	repository: melpa/melpa
	fetch-depth: 1

	- name: Install dependencies
	run: \|
	sudo apt-get install emacs
	sudo apt-get install git mercurial texinfo

	# Work around SSL-related failures, see
	# https://stackoverflow.com/questions/21477683/mercurial-https-clone-abort-error-wrong-version-number
	echo "[ui]\ntls = False" > $HOME/.hgrc

	- name: Setup config path
	run: \|
	echo "LOAD_PATH = $GITHUB_WORKSPACE/package-build" > melpa/config.mk

	- name: Build ${{ matrix.package }}
	run: \|
	cd melpa

	make recipes/${{ matrix.package }}

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