Build CI docs on main branch #3

	name: Documentation (main)

	on:
	push:
	branches: [main]
	workflow_dispatch:

	# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
	permissions:
	contents: read
	pages: write
	id-token: write

	# Allow only one concurrent deployment
	concurrency:
	group: pages
	cancel-in-progress: true

	jobs:
	build:
	name: Build Documentation
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@main
	- uses: dtolnay/rust-toolchain@nightly
	- uses: Swatinem/rust-cache@v2

	- name: Build documentation
	env:
	RUSTDOCFLAGS: "--cfg docsrs"
	run: \|
	cargo +nightly doc --no-deps \
	--features "lua55,vendored,async,send,serde,macros,anyhow,userdata-wrappers"

	- name: Create index redirect
	run: \|
	echo '<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>Redirecting to mlua documentation</title>
	<meta http-equiv="refresh" content="0; URL=mlua/index.html">
	<link rel="canonical" href="mlua/index.html">
	</head>
	<body>
	<p>Redirecting to <a href="mlua/index.html">mlua documentation</a>...</p>
	</body>
	</html>' > target/doc/index.html

	- name: Setup Pages
	uses: actions/configure-pages@v5

	- name: Upload artifact
	uses: actions/upload-pages-artifact@v4
	with:
	path: target/doc

	deploy:
	name: Deploy to GitHub Pages
	environment:
	name: github-pages
	url: ${{ steps.deployment.outputs.page_url }}
	runs-on: ubuntu-latest
	needs: build
	steps:
	- name: Deploy to GitHub Pages
	id: deployment
	uses: actions/deploy-pages@v4

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