feat: sqlite sqlx implementation for repository_exists

db/db-sqlx-sqlite/sqlx-data.json

@@ -54,6 +54,24 @@
     },
     "query": "SELECT ID FROM starchart_forge_type WHERE name = $1"
   },
+  "71079442588dfaece04582acdb14d2c8928c695d4eab5332d09b82cefc880d54": {
+    "describe": {
+      "columns": [
+        {
+          "name": "ID",
+          "ordinal": 0,
+          "type_info": "Int64"
+        }
+      ],
+      "nullable": [
+        false
+      ],
+      "parameters": {
+        "Right": 3
+      }
+    },
+    "query": "SELECT ID FROM starchart_repositories\n                    WHERE \n                        name = $1\n                    AND\n                        owner_id = ( SELECT ID FROM starchart_users WHERE username = $2)\n                    AND\n                        hostname_id = (SELECT ID FROM starchart_forges WHERE hostname = $3)"
+  },
   "8c78e074d78291f9d3c4ef3526bae00cb356591edad79a7fb1f20aa7bb681216": {
     "describe": {
       "columns": [],

db/db-sqlx-sqlite/src/lib.rs

@@ -218,6 +218,29 @@ impl SCDatabase for Database {
             },
         }
     }
+
+    /// check if a repo exists.
+    async fn repository_exists(&self, name: &str, owner: &str, hostname: &str) -> DBResult<bool> {
+        match sqlx::query!(
+            "SELECT ID FROM starchart_repositories
+                    WHERE 
+                        name = $1
+                    AND
+                        owner_id = ( SELECT ID FROM starchart_users WHERE username = $2)
+                    AND
+                        hostname_id = (SELECT ID FROM starchart_forges WHERE hostname = $3)",
+            name,
+            owner,
+            hostname,
+        )
+        .fetch_one(&self.pool)
+        .await
+        {
+            Ok(_) => Ok(true),
+            Err(Error::RowNotFound) => Ok(false),
+            Err(e) => Err(DBError::DBError(Box::new(e).into())),
+        }
+    }
 }
 
 fn now_unix_time_stamp() -> i64 {