refactor: change to more modular and testable approach #8

	---
	name: build

	on:
	push:
	branches: [main]
	pull_request:
	branches: [main]
	jobs:
	tests:
	name: tests
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: false
	matrix:
	include:
	- os: ubuntu-22.04
	rev: nightly/nvim-linux64.tar.gz
	- os: ubuntu-22.04
	rev: v0.9.1/nvim-linux64.tar.gz
	- os: ubuntu-22.04
	rev: v0.10.0/nvim-linux64.tar.gz
	steps:
	- uses: actions/checkout@v4
	- run: date +%F > todays-date
	- name: Restore cache for today's nightly.
	uses: actions/cache@v4
	with:
	path: _neovim
	key: ${{ runner.os }}-${{ matrix.rev }}-${{ hashFiles('todays-date') }}
	- name: Prepare dependencies
	run: \|
	test -d _neovim \|\| {
	mkdir -p _neovim
	curl -sL "https://github.com/neovim/neovim/releases/download/${{ matrix.rev }}" \
	\| tar xzf - --strip-components=1 -C "${PWD}/_neovim"
	}
	mkdir -p ~/.local/share/nvim/site/pack/vendor/start
	git clone --depth 1 https://github.com/nvim-lua/plenary.nvim ~/.local/share/nvim/site/pack/vendor/start/plenary.nvim
	git clone --depth 1 https://github.com/nvim-treesitter/nvim-treesitter ~/.local/share/nvim/site/pack/vendor/start/nvim-treesitter
	git clone --depth 1 https://github.com/akinsho/toggleterm.nvim ~/.local/share/nvim/site/pack/vendor/start/toggleterm.nvim
	ln -s $(pwd) ~/.local/share/nvim/site/pack/vendor/start
	export PATH="${PWD}/_neovim/bin:${PATH}"
	export VIM="${PWD}/_neovim/share/nvim/runtime"
	nvim --headless -c 'TSInstallSync lua \| quit'
	- name: Run tests
	run: \|-
	export PATH="${PWD}/_neovim/bin:${PATH}"
	export VIM="${PWD}/_neovim/share/nvim/runtime"
	nvim --version
	./scripts/test.sh

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