Use migration harness

rfd-installer/build.rs

@@ -0,0 +1,7 @@
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at https://mozilla.org/MPL/2.0/.
+
+fn main() {
+    println!("cargo:rerun-if-changed=../rfd-model/migrations");
+}

rfd-installer/src/lib.rs

@@ -3,12 +3,10 @@
 // file, You can obtain one at https://mozilla.org/MPL/2.0/.
 
 use diesel::{
-    migration::{Migration, MigrationSource},
-    pg::Pg,
     r2d2::{ConnectionManager, ManageConnection},
     PgConnection,
 };
-use diesel_migrations::{embed_migrations, EmbeddedMigrations};
+use diesel_migrations::{embed_migrations, EmbeddedMigrations, MigrationHarness};
 
 const MIGRATIONS: EmbeddedMigrations = embed_migrations!("../rfd-model/migrations");
 
@@ -17,11 +15,7 @@ pub fn run_migrations(url: &str, v_only: bool) {
 
     if !v_only {
         let mut conn = db_conn(url);
-        let migrations: Vec<Box<dyn Migration<Pg>>> = MIGRATIONS.migrations().unwrap();
-
-        for migration in migrations {
-            migration.run(&mut conn).unwrap();
-        }
+        conn.run_pending_migrations(MIGRATIONS).unwrap();
     }
 }