Add threaded mt fetching, initial db tuff

src/db/mod.rs

@@ -0,0 +1,17 @@
+use diesel::pg::PgConnection;
+use diesel::prelude::*;
+use diesel_migrations::{EmbeddedMigrations, MigrationHarness, embed_migrations};
+
+pub const MIGRATIONS: EmbeddedMigrations = embed_migrations!();
+
+pub fn init_db(database_url: &str) -> PgConnection {
+    let mut connection = PgConnection::establish(database_url)
+        .unwrap_or_else(|e| panic!("Error connecting to database: {e}"));
+
+    connection
+        .run_pending_migrations(MIGRATIONS)
+        .unwrap_or_else(|e| panic!("Error running migrations: {e}"));
+
+    connection
+}
+