Migrated the Service method in the Persistence package to use PostgreSQL instead.

Packages/Persistence/Sources/Public/Methods/Service.swift

@@ -1,4 +1,4 @@
-import FluentMySQLDriver
+import FluentPostgresDriver
 import FluentSQLiteDriver
 import HummingbirdFluent
 import Logging
@@ -37,27 +37,28 @@ public struct Service: Sendable {
     /// The selected backend is registered as the *default* database, so repositories resolve it with a plain `fluent.db()` and stay agnostic of which
     /// driver is in use. The returned service is not yet running; add it to the application's service group (`app.addServices(_:)`) so it starts and shuts
     /// its connection pool down alongside the server.
+    /// - Throws: an error when the TLS context for the PostgreSQL backend cannot be built.
     /// - Returns: the configured `Fluent` service, ready to be added to the service group.
-    public func callAsFunction() -> Fluent {
+    public func callAsFunction() throws -> Fluent {
         let fluent = Fluent(
             logger: logger
         )
 
         switch driver {
-        case .mysql(let configuration):
+        case .postgres(let configuration):
             fluent.databases.use(
-                .mysql(
+                .postgres(
                     configuration: .init(
                         hostname: configuration.host,
                         port: configuration.port,
                         username: configuration.username,
                         password: configuration.password,
                         database: configuration.name,
-                        tlsConfiguration: configuration.tls.tlsConfiguration
+                        tls: try configuration.tls.postgresTLS()
                     ),
                     maxConnectionsPerEventLoop: configuration.maxConnectionsPerEventLoop
                 ),
-                as: .mysql,
+                as: .psql,
                 isDefault: true
             )
         case .inMemory:

Packages/Persistence/Tests/Cases/Public/Methods/ServiceTests.swift

@@ -20,7 +20,7 @@ struct ServiceTests {
             logger: Logger(label: "test")
         )
 
-        let fluent = service()
+        let fluent = try service()
         let database = fluent.db() as? any SQLDatabase
 
         try await fluent.shutdown()
@@ -31,14 +31,14 @@ struct ServiceTests {
     }
 
     @Test
-    func `registers a MySQL database as the default for the mysql driver`() async throws {
+    func `registers a PostgreSQL database as the default for the postgres driver`() async throws {
         // Resolving the default database opens no connection — pooling is lazy — so no server
         // needs to be listening on the configured host and port.
         let service = Service(
-            driver: .mysql(
+            driver: .postgres(
                 .init(
                     host: "127.0.0.1",
-                    port: 3306,
+                    port: 5432,
                     name: "loud",
                     username: "loud",
                     password: "loud",
@@ -49,14 +49,14 @@ struct ServiceTests {
             logger: Logger(label: "test")
         )
 
-        let fluent = service()
+        let fluent = try service()
         let database = fluent.db() as? any SQLDatabase
 
         try await fluent.shutdown()
 
         let dialect = try #require(database?.dialect)
 
-        #expect(dialect.name == "mysql")
+        #expect(dialect.name == "postgresql")
     }
 
     @Test
@@ -66,7 +66,7 @@ struct ServiceTests {
             logger: Logger(label: "test")
         )
 
-        let fluent = service()
+        let fluent = try service()
 
         do {
             let database = try #require(fluent.db() as? any SQLDatabase)
@@ -87,12 +87,12 @@ struct ServiceTests {
     }
 
     @Test(
-        "mysql: migrate, insert, read back",
-        .enabled(if: mysqlDriver != nil)
+        "postgres: migrate, insert, read back",
+        .enabled(if: postgresDriver != nil)
     )
-    func mysqlRoundTrip() async throws {
+    func postgresRoundTrip() async throws {
         try await roundTrip(
-            driver: mysqlDriver!,
+            driver: postgresDriver!,
             revertAfter: true
         )
     }
@@ -120,8 +120,8 @@ private extension ServiceTests {
             driver: driver,
             logger: Logger(label: "test")
         )
-        
-        let fluent = service()
+
+        let fluent = try service()
 
         do {
             await prepareDB(for: fluent)
@@ -147,23 +147,23 @@ private extension ServiceTests {
 
 }
 
-/// The MySQL/MariaDB driver built from the `MYSQL_TEST_*` environment variables, or `nil` when the gate
-/// variable `MYSQL_TEST_HOST` is unset — in which case the MySQL integration test is skipped, so the suite
-/// stays runnable with no database available.
-private let mysqlDriver: Persistence.Driver? = {
+/// The PostgreSQL driver built from the `POSTGRES_TEST_*` environment variables, or `nil` when the gate
+/// variable `POSTGRES_TEST_HOST` is unset — in which case the PostgreSQL integration test is skipped, so
+/// the suite stays runnable with no database available.
+private let postgresDriver: Persistence.Driver? = {
     let environment = ProcessInfo.processInfo.environment
 
-    guard let host = environment["MYSQL_TEST_HOST"] else {
+    guard let host = environment["POSTGRES_TEST_HOST"] else {
         return nil
     }
 
-    return .mysql(
+    return .postgres(
         .init(
             host: host,
-            port: environment["MYSQL_TEST_PORT"].flatMap(Int.init) ?? 3306,
-            name: environment["MYSQL_TEST_NAME"] ?? "loud",
-            username: environment["MYSQL_TEST_USERNAME"] ?? "loud",
-            password: environment["MYSQL_TEST_PASSWORD"] ?? "loud",
+            port: environment["POSTGRES_TEST_PORT"].flatMap(Int.init) ?? 5432,
+            name: environment["POSTGRES_TEST_NAME"] ?? "loud",
+            username: environment["POSTGRES_TEST_USERNAME"] ?? "loud",
+            password: environment["POSTGRES_TEST_PASSWORD"] ?? "loud",
             tls: .off,
             maxConnectionsPerEventLoop: 2
         )