feat(ci): teach [GitHubActions] about CheckoutRef so regen preserves the ref pin#175
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…the ref pin The ubuntu-latest workflow YAML carried a manual ref:github.head_ref patch that keeps HEAD attached on PR-triggered builds. Without it, GitHubTasksTest.GitHubRepositoryFromLocalDirectoryTest fails because GitRepository.FromLocalDirectory can't resolve a branch from a detached merge SHA (seen on PR #172 when GenerateTools clobbered the patch and CI went red). Fix: surface the actions/checkout 'ref' input as first-class config on GitHubActionsCheckoutStep + a CheckoutRef setter on [GitHubActions]. The ubuntu-latest attribute in Build.CI.GitHubActions.cs now sets CheckoutRef = "${{ github.head_ref }}", so subsequent GenerateTools runs re-emit the patch automatically instead of dropping it. macos-latest and windows-latest are unchanged — they run on push-to-main where HEAD is already attached on the requested commit. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
Fixes the annoying GenerateTools whack-a-mole on
ubuntu-latest.yml: the manualref: \${{ github.head_ref }}patch that keeps HEAD attached on PR builds is now first-class config on the[GitHubActions]attribute, so every subsequent regen re-emits it automatically.Background
The
ubuntu-latestPR workflow needsactions/checkoutconfigured withref: \${{ github.head_ref }}because:GitHubTasksTest.GitHubRepositoryFromLocalDirectoryTestreads.git/HEADviaGitRepository.FromLocalDirectory.ref:pin,actions/checkoutlands on a detached merge SHA, so HEAD has no branch →repository.Branchis null → test fails.PR #172's
GenerateToolsrun dropped the manual patch and CI went red. This PR makes the patch survive regenerations.Changes
Fallout.Common/CI/GitHubActions/Configuration/GitHubActionsCheckoutStep.csRefproperty + emitsref: <value>in the YAML when set.Fallout.Common/CI/GitHubActions/GitHubActionsAttribute.csCheckoutRefsetter forwards to the step.build/Build.CI.GitHubActions.cs[GitHubActions(\"ubuntu-latest\", ..., CheckoutRef = \"\${{ github.head_ref }}\")]. macOS and Windows stay unchanged (they run on push-to-main, HEAD already attached)..github/workflows/ubuntu-latest.ymlref:line, no hand-written comment needed.Test plan
dotnet run --project build/_build.csproj -- GenerateBuildServerConfigurationsproduces the expectedref:line.dotnet test fallout.slnx— 425/425 pass.🤖 Generated with Claude Code