1 files changed, 54 insertions, 0 deletions
diff --git a/src/goqtestlib/util.go b/src/goqtestlib/util.go
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+++ b/src/goqtestlib/util.go
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+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtCore module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+package goqtestlib
+
+import (
+	"os"
+)
+
+// SetEnvironmentVariableAndRestoreOnExit immediately sets the specified environment variable to the given value. However
+// as opposed to os.Setenv it returns a closure that will restore the old value. This is useful in conjunction with deferred
+// calls, like so: defer SetEnvironmentVariableAndRestoreOnExit("someVar", "someValue")()
+func SetEnvironmentVariableAndRestoreOnExit(variable string, value string) func() {
+	oldValue := os.Getenv(variable)
+	os.Setenv(variable, value)
+	return func() {
+		os.Setenv(variable, oldValue)
+	}
+}