CI: Add workflow for documentation generation #71

	name: Generate and Preview Rust Docs

	on:
	pull_request:
	branches:
	- main # Only generate docs for PRs targeting main
	push:
	branches:
	- main
	workflow_dispatch:

	permissions:
	contents: read

	jobs:
	generate-docs:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	path: zephyr-rust-lang

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: 3.11

	- name: Setup Zephyr project
	uses: zephyrproject-rtos/action-zephyr-setup@v1
	with:
	app-path: zephyr-rust-lang
	manifest-file-name: ci-manifest.yml
	toolchains: arm-zephyr-eabi:riscv64-zephyr-elf

	- name: Install Rust Targets
	shell: bash
	run: \|
	rustup target add thumbv7em-none-eabi
	rustup target add thumbv7m-none-eabi

	- name: Build Rust documentation
	working-directory: zephyr-rust-lang
	run: \|
	# Note that the above build doesn't set Zephyrbase, so we'll need to do that here.
	west build -t rustdoc -b nrf52840dk/nrf52840 docgen
	mkdir rustdocs
	mv build/rust/target/thumbv7em-none-eabi/doc rustdocs/nostd
	cp docs/top-index.html rustdocs/index.html

	- name: Build build documentation
	working-directory: zephyr-rust-lang
	run: \|
	cd zephyr-build
	cargo doc
	mv target/doc ../rustdocs/std

	- name: Compress docs
	working-directory: zephyr-rust-lang
	run: \|
	tar --use-compress-program="xz -T0" -cf rustdocs.tar.xz rustdocs

	- name: Upload docs artifact
	uses: actions/upload-artifact@v4
	with:
	name: rustdocs
	path: zephyr-rust-lang/rustdocs.tar.xz

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