more error refactoring

rust/src/sqlite.rs

@@ -0,0 +1,18 @@
+use sqlx::sqlite::{SqliteConnectOptions, SqlitePoolOptions};
+pub use sqlx::{Pool, Sqlite};
+
+use std::str::FromStr as _;
+
+use crate::StartError;
+
+pub async fn init_database_pool(url: &str) -> Result<Pool<Sqlite>, StartError> {
+    Ok(SqlitePoolOptions::new()
+        .max_connections(5)
+        .connect_with(SqliteConnectOptions::from_str(url)?.pragma("foreign_keys", "1"))
+        .await?)
+}
+
+pub async fn migrate(pool: &Pool<Sqlite>) -> Result<(), StartError> {
+    sqlx::migrate!().run(pool).await?;
+    Ok(())
+}