Emit progress information when parsing mbox messages

postsack-cli/src/main.rs

@@ -103,8 +103,7 @@ fn main() -> eyre::Result<()> {
             )?;
 
             let db = Database::new(&database)?;
-            let (_messages_ignored_tb_revised_once_there_is_more_feedback, handle) =
-                new_importer(config, db)?;
+            let (_messages, handle) = new_importer(config, db)?;
             handle.join().expect("no panic")?;
         }
     };

ps-importer/src/formats/mbox/mod.rs

@@ -76,6 +76,7 @@ fn inner_emails(config: &Config, sender: MessageSender) -> Result<Vec<Mail>> {
                             return None;
                         }
                     };
+                    sender.send(Message::ReadOne).ok();
                     Some(Mail {
                         path: mbox_file.clone(),
                         content: content.to_owned(),