From 4c98841d2ab3c2546f5779cd0e89638c3f3f909f Mon Sep 17 00:00:00 2001
From: jochen <jschoubben@gmail.com>
Date: Fri, 23 Oct 2026 15:41:57 +0200
Subject: [PATCH] Judge a repository the mesh knows no module of with both
 build modules, so mesh-lab's nested Go modules and its npm test both run
 (issue 1887 A12)

---
 .../cmd/mesh-delivery-checker/judge.go        | 15 +++++++++++--
 .../cmd/mesh-delivery-checker/judge_test.go   |  6 +++--
 .../internal/check/pins_test.go               | 22 +++++++++++++++++++
 3 files changed, 39 insertions(+), 4 deletions(-)

diff --git a/modules/mesh-delivery-checker/cmd/mesh-delivery-checker/judge.go b/modules/mesh-delivery-checker/cmd/mesh-delivery-checker/judge.go
index ed8ff96..7db6c2b 100644
--- a/modules/mesh-delivery-checker/cmd/mesh-delivery-checker/judge.go
+++ b/modules/mesh-delivery-checker/cmd/mesh-delivery-checker/judge.go
@@ -142,17 +142,28 @@ func (r *repoModules) PackagePaths(repository string) []string {
 	return out
 }
 
-// BuildModules are the build modules that judge a repository, sorted.
+// BuildModules are the build modules that judge a repository, sorted: the Go build module always, and the Node build
+// module when a module of the repository builds TypeScript. A repository of which the mesh knows no module (mesh-lab, hq)
+// is judged by both, each finding its own directories in the tree (go.mod files; package.json files), so a repository
+// with tests in either language and no manifest is judged whole (issue 1887 A12).
 func (r *repoModules) BuildModules(repository string) []string {
 	out := []string{buildrun.GoBuildModule}
 	r.mu.Lock()
 	defer r.mu.Unlock()
+	known := false
 	for module, repo := range r.repoOf {
-		if repo == repository && r.langs[r.typed[module]]["typescript"] {
+		if repo != repository {
+			continue
+		}
+		known = true
+		if r.langs[r.typed[module]]["typescript"] {
 			out = append(out, buildrun.NodeBuildModule)
 			break
 		}
 	}
+	if !known {
+		out = append(out, buildrun.NodeBuildModule)
+	}
 	sort.Strings(out)
 	return out
 }
diff --git a/modules/mesh-delivery-checker/cmd/mesh-delivery-checker/judge_test.go b/modules/mesh-delivery-checker/cmd/mesh-delivery-checker/judge_test.go
index 8afa3c1..126b348 100644
--- a/modules/mesh-delivery-checker/cmd/mesh-delivery-checker/judge_test.go
+++ b/modules/mesh-delivery-checker/cmd/mesh-delivery-checker/judge_test.go
@@ -69,8 +69,10 @@ func TestARepositoryWithATypeScriptModuleIsJudgedByTheNodeBuildModuleToo(t *test
 	if got := r.CommitOf("mesh-delivery-checker"); got != strings.Repeat("a", 40) || r.CommitOf("gone") != "" {
 		t.Errorf("the commit the mesh runs = %q", got)
 	}
-	if got := r.BuildModules("novox/mesh-sdk"); strings.Join(got, ",") != buildrun.GoBuildModule {
-		t.Errorf("a repository with no module: %v, want the Go build module", got)
+	// 1887/A12: a repository with no module the mesh knows (mesh-lab: nested go.mod files and a root package.json) is
+	// judged by both build modules.
+	if got := r.BuildModules("novox/mesh-lab"); strings.Join(got, ",") != buildrun.GoBuildModule+","+buildrun.NodeBuildModule {
+		t.Errorf("a repository with no module: %v, want both build modules", got)
 	}
 }
 
diff --git a/modules/mesh-delivery-checker/internal/check/pins_test.go b/modules/mesh-delivery-checker/internal/check/pins_test.go
index dabdfe3..9d0c6bb 100644
--- a/modules/mesh-delivery-checker/internal/check/pins_test.go
+++ b/modules/mesh-delivery-checker/internal/check/pins_test.go
@@ -291,3 +291,25 @@ func TestACatalogueChangeHasTheCatalogueBesideItAtItsTrunk(t *testing.T) {
 		t.Errorf("mesh-sdk is no longer beside a catalogue change: %v", got)
 	}
 }
+
+// 1887/A12: a mesh-lab head gets a check: with its trunk known it is judged like any repository, its Go fetch finding
+// the nested modules itself.
+func TestAMeshLabHeadGetsACheck(t *testing.T) {
+	const lab = "novox/mesh-lab"
+	raw := candidateOf(t, "fix/x", pullOf(lab, 3, head1))
+	c, err := delivery.DecodeCandidate(raw)
+	if err != nil {
+		t.Fatal(err)
+	}
+	cs := CaseOf(c, map[string]string{lab: trunkA})
+	if cs == nil || len(cs.Pulls) != 1 || cs.Pulls[0].Repository != lab || len(cs.Left) != 0 {
+		t.Fatalf("the case = %+v, want mesh-lab#3 judged", cs)
+	}
+	b := newBench(t)
+	if v := b.judge(t, cs).Verdict; v.State != delivery.VerdictPass {
+		t.Fatalf("verdict = %+v", v)
+	}
+	if fetched := b.steps.tool("fetch"); len(fetched) == 0 || fetched[0].args["repository"] != lab {
+		t.Fatalf("mesh-lab was not fetched: %+v", fetched)
+	}
+}