on-merge.yml

name: "On Merge | Validate Build"

on:
  # Use a merge queue to gate the creation and storage
  # of these Docker images.
  merge_group:
  # Allow this job to be executed manually from the GH UI.
  workflow_dispatch:

env:
  CARGO_TERM_COLOR: always

jobs:
  pr-ready:
    if: always()
    name: "⚡ PR Ready"
    runs-on: ubuntu-latest
    needs:
    - "build"
    steps:
      - if: ${{ contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled')  || contains(needs.*.result, 'skipped') }}
        run: |
          echo "One or more dependent jobs failed, was skipped, or was cancelled. All jobs must pass for the PR to be ready."
          exit 1
      - run: echo "OK"
    
  # TODO: Exfiltrate this job into one or more action/jobs so it can be reused
  #       for on-pr and on-merge.
  # This job installs Cargo Make and Cargo Nextest before running
  # the CI workflow using Cargo Make. Most of the time, it should
  # restore Cargo Make and other dependencies from cache.
  build:
    name: Validate Rust Build
    runs-on: ubuntu-latest
    steps:
      - name: Checkout the Repo
        uses: actions/checkout@v4

      - name: "Install Rust (Nightly)"
        uses: dtolnay/rust-toolchain@nightly
        with:
          components: rustfmt,clippy
      
      - name: "Install Rust (Stable)"
        uses: dtolnay/rust-toolchain@stable
        with:
          components: llvm-tools-preview,rustfmt,clippy
     
      - name: "Restore Rust Cache"
        uses: Swatinem/rust-cache@v2
      
      - name: "Install Cargo Tools from Binaries."
        uses: "taiki-e/install-action@v2"
        with:
          tool: "cargo-tarpaulin,cargo-make,cargo-nextest,cargo-llvm-cov"

      - name: "Install Cargo Sort"
        uses: taiki-e/cache-cargo-install-action@v1
        with:
          tool: cargo-sort

      - name: "Install Taplo CLI"
        uses: taiki-e/cache-cargo-install-action@v1
        with:
          tool: taplo-cli
      
      - name: "Cargo Make"
        run: cargo make ci-flow

      - name: "Upload Coverage"
        uses: coverallsapp/github-action@v2
        with:
          git-branch: "${{ github.base_ref || github.event.merge_group.base_ref }}"