flake: provide containerized builds #29

	name: "Publish Docker Image"
	on:
	workflow_dispatch:
	pull_request:
	branches:
	- main
	push:
	branches:
	- main
	tags:
	- "v*" # only publish tagged releases

	jobs:
	build-docker-image:
	name: "Build Docker Image"
	runs-on: ubuntu-latest

	permissions:
	contents: read
	packages: write

	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Install Nix
	uses: DeterminateSystems/nix-installer-action@main
	- name: Magic Nix Cache
	uses: DeterminateSystems/magic-nix-cache-action@main

	- name: Build Exposed Docker Image
	run: nix build .#docker-nix --print-build-logs

	- name: Load & Tag Built Docker Image
	run: \|
	docker load -i result &&
	docker tag localhost/neovim-flake:latest notashelf/neovim-flake:latest

	- name: Log into DockerHub
	uses: docker/login-action@master
	with:
	username: notashelf
	password: ${{ secrets.DOCKER_ACCESS_TOKEN }}

	- name: Push to DockerHub
	run: docker push notashelf/neovim-flake:latest

	- name: Log into ghcr
	uses: docker/login-action@master
	with:
	registry: "ghcr.io"
	username: "${{ github.actor }}"
	password: "${{ secrets.GITHUB_TOKEN }}"

	- name: Publish Docker Image (Github Packages)
	run: docker push ghcr.io/neovim-flake:latest

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