server: don't touch tantivy if no uids reindexed

server/src/tantivy.rs

@@ -4,7 +4,7 @@ use log::{debug, error, info};
 use sqlx::{postgres::PgPool, types::time::PrimitiveDateTime};
 use tantivy::{
     collector::{DocSetCollector, TopDocs},
-    query,
+    doc, query,
     query::{AllQuery, BooleanQuery, Occur, QueryParser, TermQuery},
     schema::{Facet, IndexRecordOption, Value},
     DocAddress, Index, Searcher, TantivyDocument, TantivyError, Term,
@@ -102,8 +102,10 @@ impl TantivyConnection {
         self.reindex_uids(pool, &uids).await
     }
     async fn reindex_uids(&self, pool: &PgPool, uids: &[String]) -> Result<(), ServerError> {
+        if uids.is_empty() {
+            return Ok(());
+        }
         // TODO: add SlurpContents and convert HTML to text
-        use tantivy::{doc, Term};
 
         let start_time = std::time::Instant::now();
         let pool: &PgPool = pool;