rust-version.yml

# Opens a PR to update the nightly Rust version every two weeks
name: Rust Version Check

on:
  workflow_dispatch:
  schedule:
    - cron:  '0 0 1,15 * *'

jobs:
  rust-version-check:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        package: ["aptos", "ethereum"]
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@nightly
      - name: Parse rust-toolchain.toml
        run: echo "TOOLCHAIN_VERSION=$(rustup show | grep rustc | awk -F'[()]| ' '{ print $(NF-1) }')" | tee -a $GITHUB_ENV
        working-directory: ${{ github.workspace }}/${{ matrix.package }}
      - name: Get latest nightly Rust version
        run: |
          echo "RUST_VERSION=$(rustup check | grep nightly | awk -F'[()]| ' '{print $(NF-1)}')" | tee -a $GITHUB_ENV
      - name: Compare Rust versions
        id: compare-versions
        run: |
          if [[ $(printf '%s\n' "$TOOLCHAIN_VERSION" "$RUST_VERSION" | sort -V | head -n 1) != "$RUST_VERSION" ]]; then
            echo "outdated=true" | tee -a $GITHUB_OUTPUT
          fi
        working-directory: ${{ github.workspace }}/${{ matrix.package }}
      - name: Update Cargo.toml
        if: steps.compare-versions.outputs.outdated == 'true'
        run: |
          sed -i 's/channel = .*/channel = "nightly-${{ env.RUST_VERSION }}"/' rust-toolchain.toml
        working-directory: ${{ github.workspace }}/${{ matrix.package }}
      # Open PR if Rust version is out of date with latest nightly
      - name: Create Pull Request
        if: steps.compare-versions.outputs.outdated == 'true'
        uses: peter-evans/create-pull-request@v6
        with:
          branch: "ci-update-rust-version-${{ matrix.package }}"
          title: "chore: Update `${{ matrix.package }}` Rust version to `nightly-${{ env.RUST_VERSION }}`"
          commit-message: "chore: Update `${{ matrix.package }}` Rust version to `nightly-${{ env.RUST_VERSION }}`"
          labels: "automated-issue"
          reviewers: "tchataigner, wwared, storojs72, huitseeker, samuelburnham"
          body: |
            This is an automated PR updating the `${{ matrix.package }}` Rust version from `nightly-${{ env.TOOLCHAIN_VERSION }}` to `nightly-${{ env.RUST_VERSION }}`

            Workflow run: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}