name: Publish Rust Docs

on:
  push:
    branches:
      - master

jobs:
  deploy-docs:
    name: Deploy docs
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/actions/checkout@v2.3.4

      - name: Rust show versions
        run: rustup show

      - name: Rust cache
        uses: Swatinem/rust-cache@v1

      - name: Build rustdocs
        uses: actions-rs/cargo@v1
        with:
          command: doc
          args: --all --no-deps

      # Make an index.html file that redirects to the cumulus-client-collator page
      # Copied from https://github.com/substrate-developer-hub/rustdocs/blob/master/index.html
      - name: Make index.html
        run: echo "<meta http-equiv=refresh content=0;url=cumulus_client_collator/index.html>" > ./target/doc/index.html

      - name: Deploy documentation
        uses: peaceiris/actions-gh-pages@v3
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          publish_branch: gh-pages
          publish_dir: ./target/doc