docs, cicd: Updated to only rebuild docs on major version #38

	name: Deploy Rustdoc to GitHub Pages

	on:
	push:
	branches: [master]
	paths:
	- 'rosy/Cargo.toml'
	workflow_dispatch:

	permissions:
	contents: read
	pages: write
	id-token: write

	concurrency:
	group: "pages"
	cancel-in-progress: true

	jobs:
	check-version:
	runs-on: ubuntu-latest
	outputs:
	is_new: ${{ steps.check.outputs.is_new }}
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: Check if version changed
	id: check
	run: \|
	# Always deploy on workflow_dispatch
	if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
	echo "is_new=true" >> "$GITHUB_OUTPUT"
	exit 0
	fi
	VERSION=$(grep '^version' rosy/Cargo.toml \| head -1 \| sed 's/."$.$".*/\1/')
	if git rev-parse "v$VERSION" >/dev/null 2>&1; then
	echo "is_new=false" >> "$GITHUB_OUTPUT"
	else
	echo "is_new=true" >> "$GITHUB_OUTPUT"
	fi

	build:
	needs: check-version
	if: needs.check-version.outputs.is_new == 'true'
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Install Rust toolchain
	uses: dtolnay/rust-toolchain@stable

	- name: Build documentation
	run: cargo doc --document-private-items --no-deps -p rosy

	- name: Add redirect index.html
	run: echo '<meta http-equiv="refresh" content="0;url=rosy/index.html">' > target/doc/index.html

	- name: Upload Pages artifact
	uses: actions/upload-pages-artifact@v3
	with:
	path: target/doc

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

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