Get the last item when using --get with no ids/tags/meta.

src/db.rs

@@ -330,6 +330,28 @@ pub fn get_item(conn: &Connection, item_id: i64) -> Result<Option<Item>> {
     }
 }
 
+pub fn get_item_last(conn: &Connection) -> Result<Option<Item>> {
+    debug!("DB: Getting last item");
+    let mut statement = conn
+        .prepare_cached("
+          SELECT id, ts, size, compression
+          FROM items
+          ORDER BY id DESC
+          LIMIT 1")
+        .context("Problem preparing SQL statement")?;
+
+    let mut rows = statement.query([])?;
+
+    match rows.next()? {
+        Some(row) => Ok(Some(Item {
+            id: row.get(0)?,
+            ts: row.get(1)?,
+            size: row.get(2)?,
+            compression: row.get(3)?
+        })),
+        None => Ok(None)
+    }
+}
 
 pub fn get_item_tags(conn: &Connection, item: &Item) -> Result<Vec<Tag>> {
     debug!("DB: Getting tags for item: {:?}", item);