Upgrade to Actix V2, bump SQLX version, code cleanup, intergrate ratelimiter (#288)

* Upgrade to Actix V2, bump SQLX version, code cleanup, intergrate ratelimiter

* Add pack file path validation

* Fix compilation error caused by incorrect merge

src/database/postgres_database.rs

@@ -1,10 +1,7 @@
 use log::info;
-use sqlx::migrate::{Migrate, MigrateDatabase, Migrator};
+use sqlx::migrate::MigrateDatabase;
 use sqlx::postgres::{PgPool, PgPoolOptions};
 use sqlx::{Connection, PgConnection, Postgres};
-use std::path::Path;
-
-const MIGRATION_FOLDER: &str = "migrations";
 
 pub async fn connect() -> Result<PgPool, sqlx::Error> {
     info!("Initializing database connection");
@@ -34,31 +31,14 @@ pub async fn check_for_migrations() -> Result<(), sqlx::Error> {
         info!("Creating database...");
         Postgres::create_database(uri).await?;
     }
+
     info!("Applying migrations...");
-    run_migrations(uri).await?;
 
-    Ok(())
-}
-
-pub async fn run_migrations(uri: &str) -> Result<(), sqlx::Error> {
-    let migrator = Migrator::new(Path::new(MIGRATION_FOLDER)).await?;
     let mut conn: PgConnection = PgConnection::connect(uri).await?;
-
-    conn.ensure_migrations_table().await?;
-
-    let (version, dirty) = conn.version().await?.unwrap_or((0, false));
-
-    if dirty {
-        panic!("The database is dirty! Please check your database status.");
-    }
-
-    for migration in migrator.iter() {
-        if migration.version > version {
-            let _elapsed = conn.apply(migration).await?;
-        } else {
-            conn.validate(migration).await?;
-        }
-    }
+    sqlx::migrate!()
+        .run(&mut conn)
+        .await
+        .expect("Error while running database migrations!");
 
     Ok(())
 }