rust.yml

name: Rust

on:
  push:
    branches: [ "master" ]
  pull_request:
    branches: [ "master" ]

env:
  CARGO_TERM_COLOR: always

permissions:
  contents: read

jobs:
  build:
    name: Build and test (${{ matrix.name }})
    runs-on: ubicloud-standard-2
    timeout-minutes: 15
    strategy:
      fail-fast: false
      matrix:
        include:
          - name: default
            args: ""
          - name: versioned-publication
            args: "--features versioned-row-publication"
          - name: all-features
            args: "--all-features"

    steps:
    - uses: actions/checkout@v4
    - uses: Swatinem/rust-cache@v2
      with:
        cache-on-failure: "true"
        add-job-id-key: "false"
    - name: Build
      run: cargo build --workspace --all-targets ${{ matrix.args }} --verbose
    - name: Run tests
      run: cargo test --workspace --all-targets ${{ matrix.args }} --verbose


  clippy_check:
    name: Clippy (${{ matrix.name }})
    runs-on: ubicloud-standard-2
    timeout-minutes: 15
    strategy:
      fail-fast: false
      matrix:
        include:
          - name: default
            args: ""
          - name: all-features
            args: "--all-features"

    steps:
      - uses: actions/checkout@v4
      - uses: Swatinem/rust-cache@v2
        with:
          cache-on-failure: "true"
          add-job-id-key: "false"
      - name: Clippy (deny warnings)
        run: cargo clippy --workspace --all-targets ${{ matrix.args }} -- -D warnings

  duplicate_index_crates:
    name: One version of each shared index crate
    runs-on: ubicloud-standard-2
    timeout-minutes: 15
    steps:
      - uses: actions/checkout@v4
      - uses: Swatinem/rust-cache@v2
        with:
          cache-on-failure: "true"
          add-job-id-key: "false"
      # Two versions of WorkTablesIndex in one graph split the type identity of
      # `Pair` and `ChangeEvent`, and the build then fails with "expected
      # ChangeEvent<Pair<T, Link>>, found a different ChangeEvent<Pair<T,
      # Link>>" across dozens of unrelated-looking lines. It happens whenever
      # data_bucket and worktable disagree about which version they want, which
      # is every time one is bumped and released without the other.
      #
      # The caret requirements are correct and stay. This turns the mismatch
      # into one named failure instead of a wall of trait errors, which is the
      # guard WT-8 asked for.
      - name: Refuse a duplicated WorkTablesIndex or data_bucket
        run: |
          duplicates=$(cargo tree --duplicates --edges normal 2>/dev/null \
            | grep -E '^(WorkTablesIndex|data_bucket) v' | sort -u)
          if [ -n "$duplicates" ]; then
            echo "More than one version of a shared index crate is in the graph:"
            echo "$duplicates"
            echo
            echo "WorkTablesIndex, data_bucket and worktable move as one train."
            echo "Publish them in lockstep, or pin them to agree."
            exit 1
          fi
          echo "one version of each: ok"

  publish:
    if: github.event_name == 'push' && github.ref == 'refs/heads/master'
    needs: [build, clippy_check, duplicate_index_crates]
    runs-on: ubicloud-standard-2
    timeout-minutes: 45
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@stable
      - name: Publish when master carries a new version
        env:
          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
        run: |
          set -euo pipefail
          if [ -z "${CARGO_REGISTRY_TOKEN:-}" ]; then echo "CARGO_REGISTRY_TOKEN not set; skipping publish"; exit 0; fi

          # Publish in dependency order. worktable_codegen depends on
          # worktable_dsl and worktable depends on worktable_codegen, both by
          # path with an exact version, so each must be on the registry before
          # the next is packaged. Omitting worktable_dsl here is what made
          # `cargo publish -p worktable_codegen` fail with "no matching package
          # named `worktable_dsl` found" the moment the DSL extraction landed.
          publish_if_new() {
            crate="$1"
            manifest="$2"
            version=$(sed -n 's/^version = "\(.*\)"$/\1/p' "$manifest" | head -1)
            # crates.io index paths: four or more characters is {first two}/{next two}/{name}.
            if curl -fsSL "https://index.crates.io/wo/rk/$crate" \
              | sed -n 's/.*"vers":"\([^"]*\)".*/\1/p' | grep -qx "$version"; then
              echo "$crate $version is already on crates.io; skipping"
              return 0
            fi
            echo "publishing $crate $version"
            cargo publish -p "$crate"
          }

          publish_if_new worktable_dsl dsl/Cargo.toml
          publish_if_new worktable_codegen codegen/Cargo.toml
          publish_if_new worktable Cargo.toml