Compile packages for selected targets

check.go

@@ -49,6 +49,11 @@ type GoValidationSpec struct {
 	// FullVet runs go vet after the suite instead of the test-time vet pass.
 	// Failures use the go-vet validation check identity.
 	FullVet bool
+	// CompileTargets checks that every package builds for each complete target
+	// pair after testing and vet. Compilation uses CGO_ENABLED=0 and does not
+	// produce artifacts or execute target binaries. Failures use the
+	// package-compile validation check identity.
+	CompileTargets []Target
 }
 
 // Check validates one local, committed release candidate. It requires a clean
@@ -56,8 +61,11 @@ type GoValidationSpec struct {
 // and an unused local tag. It always runs the offline Go test suite with the
 // available compatible local Go toolchain and Go host target, then calls
 // AdditionalChecks when supplied. Validation.Go.Race runs that one suite with
-// the race detector, and Validation.Go.FullVet runs go vet after the suite
-// instead of test-time vet. Their zero values preserve the ordinary suite. If
+// the race detector, Validation.Go.FullVet runs go vet after the suite instead
+// of test-time vet, and Validation.Go.CompileTargets compiles all packages for
+// each selected GOOS/GOARCH pair after tests and vet with cgo disabled. Package
+// compilation produces no artifacts and does not execute target binaries.
+// Their zero values preserve the ordinary suite. If
 // Build selects targets, Check builds them after validation in temporary
 // storage outside the worktree, then rechecks
 // branch, HEAD, worktree, index, and local tag state. Success establishes local
@@ -75,18 +83,23 @@ func Check(ctx context.Context, request ReleaseRequest) (Candidate, error) {
 }
 
 func candidateRequest(request ReleaseRequest) candidate.Request {
-	return candidate.Request{
+	result := candidate.Request{
 		RepositoryDir: request.RepositoryDir,
 		Product:       request.Product,
 		Version:       request.Version,
 		Validation: validation.Settings{
-			Race:    request.Validation.Go.Race,
-			FullVet: request.Validation.Go.FullVet,
+			Race:           request.Validation.Go.Race,
+			FullVet:        request.Validation.Go.FullVet,
+			CompileTargets: make([]validation.Target, len(request.Validation.Go.CompileTargets)),
 		},
 		AdditionalChecks: candidateChecks(request.AdditionalChecks),
 		AfterValidate:    internalbuild.CandidateCallback(internalBuildSpec(request.Build), request.Output),
 		Output:           request.Output,
 	}
+	for index, target := range request.Validation.Go.CompileTargets {
+		result.Validation.CompileTargets[index] = validation.Target{OS: target.OS, Arch: target.Arch}
+	}
+	return result
 }
 
 func candidateChecks(checks func(context.Context, Candidate) error) func(context.Context, candidate.Candidate) error {