Add workspace configuration support

internal/cli/run_test.go

@@ -2148,6 +2148,29 @@ func TestRunPipelineWritesDiagnosticsArtifactsOnSuccess(t *testing.T) {
 	}
 }
 
+func TestRunPipelineSkipsDiagnosticsWhenWorkspaceDiagnosticsDisabled(t *testing.T) {
+	workspaceDir := filepath.Join(t.TempDir(), "workspace")
+	outputDir := t.TempDir()
+	configPath := writeTestConfig(t, mvpConfigYAMLWithWorkspaceDiagnosticsDisabled("dnd-session", workspaceDir))
+	inputPath := writeSeriatimInput(t)
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+
+	code := RunWithOptions([]string{"run", "dnd-session", "--config", configPath, "--input", inputPath, "--output-dir", outputDir}, &stdout, &stderr, Options{
+		LLMClientFactory: fakeLLMFactory(newFakeRunLLMClient(false), nil),
+	})
+
+	if code != 0 {
+		t.Fatalf("RunWithOptions() code = %d, stderr=%q", code, stderr.String())
+	}
+	if _, err := os.Stat(filepath.Join(workspaceDir, "diagnostics")); !os.IsNotExist(err) {
+		t.Fatalf("workspace diagnostics dir stat err = %v, want not exist", err)
+	}
+	if entries := childDirs(t, outputDir); len(entries) != 1 {
+		t.Fatalf("output run dirs = %v, want one run dir", entries)
+	}
+}
+
 func TestRunPipelineWritesErrorLogAfterDiagnosticsCreation(t *testing.T) {
 	diagnosticsDir := t.TempDir()
 	configPath := writeTestConfig(t, mvpConfigYAMLWithDiagnostics("dnd-session", diagnosticsDir, "always"))
@@ -2732,6 +2755,21 @@ pipelines:
 `
 }
 
+func mvpConfigYAMLWithWorkspaceDiagnosticsDisabled(pipelineID, workspaceDir string) string {
+	return `version: 2
+workspace:
+  directory: ` + workspaceDir + `
+  diagnostics:
+    enabled: false
+pipelines:
+  ` + pipelineID + `:
+    input: seriatim
+    artifacts:
+      spells:
+        extract: dnd/spells
+`
+}
+
 func writeSeriatimInput(t *testing.T) string {
 	t.Helper()
 	return writeFile(t, "source.json", `{