Add logging to confirm that stdout isn't empty when triggering on cell execution

app/pkg/agent/agent.go

@@ -417,6 +417,26 @@ func (a *Agent) StreamGenerate(ctx context.Context, stream *connect.BidiStream[v
 					doc.Blocks[selectedCell] = block
 				}
 
+				if req.Trigger == v1alpha1.StreamGenerateRequest_CELL_EXECUTE {
+					stdOutLength := 0
+					for _, o := range doc.Blocks[selectedCell].Outputs {
+						for _, item := range o.Items {
+							if item.Mime == docs.VSCodeNotebookStdOutMimeType {
+								if item.GetTextData() != "" {
+									stdOutLength = len(item.GetTextData())
+									break
+								}
+							}
+						}
+					}
+
+					if stdOutLength == 0 {
+						// N.B.This is to help debug https://github.com/jlewi/foyle/issues/309
+						// This will create false positives in the event the command produces no output
+						log.Info("Empty stdout", logs.ZapProto("request", req), "doc", doc, "selectedCell", selectedCell)
+					}
+				}
+
 				if req.GetContextId() != state.getContextID() {
 					return status.Errorf(codes.InvalidArgument, "ContextId doesn't match current value; expected %s; got %s", state.getContextID(), req.GetContextId())
 				}

app/pkg/docs/const.go

@@ -14,5 +14,5 @@ const (
 	//    https://github.com/jlewi/foyle/issues/286
 	StatefulRunmeOutputItemsMimeType = "stateful.runme/output-items"
 	StatefulRunmeTerminalMimeType    = "stateful.runme/terminal"
-	VSCodeNotebookStdOutMimeType     = "application/vnd.code.notebook.stdout "
+	VSCodeNotebookStdOutMimeType     = "application/vnd.code.notebook.stdout"
 )

developer_guides/runme.md

@@ -55,6 +55,12 @@ Now we can install the extension using the vscode binary
 /Applications/Visual\ Studio\ Code.app/Contents/Resources/app/bin/code --force --install-extension ~/git_vscode-runme/runme-extension.vsix
 ```
 
+```bash {"id":"01JBQ3ZJSS2FXAH4E0CK6SH841"}
+cd ~/git_vscode-runme
+npm run build
+npm run bundle
+```
+
 ```bash {"id":"01JAH5BVWFNHDGGECF7PRE2EE9","interactive":"false"}
 # To check the installed version of the RunMe extension in Visual Studio Code after installation, use the following command:
 BINARY="/Applications/Visual Studio Code.app/Contents/Resources/app/bin/code"