Use SQLITE write-ahead logging

.gitignore

@@ -1,4 +1,11 @@
+# Cargo/Rust
 /target
-/.vscode
-/*.db
 Cargo.lock
+
+# Visual studio code
+.vscode
+
+# Sqlite databases
+/*.db
+*.db-shm
+*.db-wal

sprinklers_database/src/lib.rs

@@ -17,6 +17,9 @@ pub fn setup_db() -> Result<DbConn> {
     // let conn = DbConn::open_in_memory()?;
     let mut conn = DbConn::open("test.db")?;
 
+    // Go ahead and use write ahead log for better perf
+    conn.execute_batch("PRAGMA journal_mode=WAL;")?;
+
     let migs = create_migrations();
     migs.apply(&mut conn)?;