chore: initialize Gitea v1.27.2 fork

Includes direct password setup links in registration emails.

Assisted-by: Codex:GPT-5

models/db/driver_postgresschema.go

@@ -0,0 +1,49 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package db
+
+import (
+	"context"
+	"database/sql"
+	"database/sql/driver"
+	"errors"
+	"sync"
+
+	"gitea.dev/modules/setting"
+
+	"github.com/lib/pq"
+	"xorm.io/xorm/dialects"
+)
+
+type postgresSchemaDriver struct{}
+
+var registerPostgresSchemaDriver = sync.OnceFunc(func() {
+	sql.Register(sqlDriverPostgresSchema, &postgresSchemaDriver{})
+	dialects.RegisterDriver(sqlDriverPostgresSchema, dialects.QueryDriver("postgres"))
+})
+
+// Open opens the postgres connection in the default manner with default schema support.
+// It immediately runs "set_config" to set the search_path appropriately.
+func (*postgresSchemaDriver) Open(connStr string) (driver.Conn, error) {
+	conn, err := pq.Driver{}.Open(connStr)
+	if err != nil {
+		return nil, err
+	}
+
+	connExec, ok := conn.(driver.ExecerContext)
+	if !ok {
+		return nil, errors.New("postgres driver does not implement ExecerContext interface")
+	}
+	_, err = connExec.ExecContext(context.Background(), `SELECT set_config(
+			'search_path',
+			$1 || ',' || current_setting('search_path'),
+			false)`,
+		[]driver.NamedValue{{Ordinal: 1, Value: setting.Database.Schema}},
+	)
+	if err != nil {
+		_ = conn.Close()
+		return nil, err
+	}
+	return conn, nil
+}