fix ipv6 database host

tests/configs.rs

@@ -721,3 +721,35 @@ fn test_parse_postgres_escaped_credentials() {
         PgConnectOptions::from_str(&config.database.url()).unwrap(),
     );
 }
+
+#[test]
+fn test_parse_ipv6_db() {
+    let config = config_from_file("tests/configs/ipv6_db.php");
+    assert_debug_equal(
+        &Database::MySql {
+            database: "nextcloud".to_string(),
+            username: "nextcloud".to_string(),
+            password: "secret".to_string(),
+            connect: DbConnect::Tcp {
+                host: "[::1]".to_string(),
+                port: 123,
+            },
+            ssl_options: SslOptions::Default,
+        },
+        &config.database,
+    );
+    assert_eq!(
+        config.database.url(),
+        "mysql://nextcloud:secret@[::1]:123/nextcloud"
+    );
+
+    assert_debug_equal(
+        MySqlConnectOptions::new()
+            .host("[::1]")
+            .username("nextcloud")
+            .password("secret")
+            .port(123)
+            .database("nextcloud"),
+        MySqlConnectOptions::from_str(&config.database.url()).unwrap(),
+    );
+}

tests/configs/ipv6_db.php

@@ -0,0 +1,15 @@
+<?php
+
+$CONFIG = [
+	'overwrite.cli.url' => 'https://cloud.example.com',
+	'dbtype' => 'mysql',
+	'dbname' => 'nextcloud',
+	'dbhost' => '[::1]:123',
+	'dbport' => '',
+	'dbtableprefix' => 'oc_',
+	'dbuser' => 'nextcloud',
+	'dbpassword' => 'secret',
+	'redis' => [
+		'host' => 'localhost'
+	]
+];