Semantics/.github/workflows/verify-generated.yml at main · ktsu-dev/Semantics · GitHub

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name: Verify Generated Files

# Two kinds of generated artifacts are committed to this repo:
#   1. Source-generator output under Semantics.Quantities/Generated/ (EmitCompilerGeneratedFiles=true).
#   2. The storage-type alias props under Semantics.Quantities.<T>/buildTransitive/, produced by
#      scripts/Generate-AliasProps.ps1 from the quantity catalogue.
# This job rebuilds and regenerates both, then fails if anything drifts from its source — so a
# committed generated file or alias-props file can never go stale.
#
# NOTE: this is a standalone workflow on purpose — dotnet.yml is centrally synced from a
# shared template across ktsu repos, so a step added there would be overwritten. If this
# check belongs in the shared KtsuBuild pipeline long-term, move it there and delete this.

on:
  pull_request:
    paths-ignore: ["**.md"]
  workflow_dispatch:

permissions:
  contents: read

concurrency:
  group: verify-generated-${{ github.ref }}
  cancel-in-progress: true

jobs:
  verify-generated:
    name: Generated files up to date
    # windows-latest so git's autocrlf matches the committed CRLF line endings and the
    # diff doesn't flag end-of-line differences.
    runs-on: windows-latest
    timeout-minutes: 15
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup .NET SDK
        uses: actions/setup-dotnet@v4
        with:
          dotnet-version: "10.0.x"

      - name: Build (regenerates source-generator output into Generated/)
        run: dotnet build Semantics.Quantities/Semantics.Quantities.csproj -c Release

      - name: Regenerate storage-type alias props
        shell: pwsh
        run: ./scripts/Generate-AliasProps.ps1

      - name: Fail if generated files or alias props are stale
        shell: bash
        run: |
          if ! git diff --exit-code; then
            echo "::error::Committed generated files or alias props are out of date. Run 'dotnet build Semantics.Quantities/Semantics.Quantities.csproj -c Release' then 'pwsh scripts/Generate-AliasProps.ps1', and commit the changes."
            exit 1
          fi