implements the index deletion, creation and swap

index-scheduler/src/index/index.rs

@@ -22,6 +22,7 @@ use super::{Checked, Settings};
 
 pub type Document = Map<String, Value>;
 
+// @kero, what is this structure? Shouldn't it move entirely to milli?
 #[derive(Debug, Serialize, Deserialize, Clone)]
 #[serde(rename_all = "camelCase")]
 pub struct IndexMeta {
@@ -50,6 +51,7 @@ impl IndexMeta {
     }
 }
 
+// @kero Maybe this should be entirely generated somewhere else since it doesn't really concern the index?
 #[derive(Serialize, Debug)]
 #[serde(rename_all = "camelCase")]
 pub struct IndexStats {
@@ -105,6 +107,14 @@ impl Index {
         self.inner.as_ref().clone().prepare_for_closing();
     }
 
+    pub fn delete(self) -> Result<()> {
+        let path = self.path().to_path_buf();
+        self.inner.as_ref().clone().prepare_for_closing().wait();
+        std::fs::remove_file(path)?;
+
+        Ok(())
+    }
+
     pub fn stats(&self) -> Result<IndexStats> {
         let rtxn = self.read_txn()?;
 

index-scheduler/src/index/mod.rs

@@ -137,6 +137,13 @@ pub mod test {
             }
         }
 
+        pub fn delete(self) -> Result<()> {
+            match self {
+                MockIndex::Real(index) => index.delete(),
+                MockIndex::Mock(m) => unsafe { m.get("delete").call(()) },
+            }
+        }
+
         pub fn perform_search(&self, query: SearchQuery) -> Result<SearchResult> {
             match self {
                 MockIndex::Real(index) => index.perform_search(query),