From 2c6719b8c8a66038166ccfb9e07f9f04f4140bac Mon Sep 17 00:00:00 2001
From: kervala <devnull@localhost>
Date: Tue, 20 Sep 2016 18:34:59 +0200
Subject: [PATCH] Changed: Use a temporary file to check if we're uninstalling
 old client, see #279

---
 .../client/ryzom_installer/src/configfile.cpp | 26 +++++++++++++++----
 .../client/ryzom_installer/src/configfile.h   |  1 -
 2 files changed, 21 insertions(+), 6 deletions(-)

diff --git a/code/ryzom/tools/client/ryzom_installer/src/configfile.cpp b/code/ryzom/tools/client/ryzom_installer/src/configfile.cpp
index f23976cd9..fea558af4 100644
--- a/code/ryzom/tools/client/ryzom_installer/src/configfile.cpp
+++ b/code/ryzom/tools/client/ryzom_installer/src/configfile.cpp
@@ -27,8 +27,7 @@
 CConfigFile *CConfigFile::s_instance = NULL;
 
 CConfigFile::CConfigFile(QObject *parent):QObject(parent), m_version(-1),
-	m_defaultServerIndex(0), m_defaultProfileIndex(0), m_use64BitsClient(false), m_shouldUninstallOldClient(true),
-	m_uninstallingOldClient(false)
+	m_defaultServerIndex(0), m_defaultProfileIndex(0), m_use64BitsClient(false), m_shouldUninstallOldClient(true)
 {
 	s_instance = this;
 
@@ -464,12 +463,29 @@ void CConfigFile::setShouldUninstallOldClient(bool on)
 
 bool CConfigFile::uninstallingOldClient() const
 {
-	return m_uninstallingOldClient;
+	return QFile::exists(getInstallationDirectory() + "/ryzom_installer_uninstalling_old_client");
 }
 
 void CConfigFile::setUninstallingOldClient(bool on)
 {
-	m_uninstallingOldClient = on;
+	QString filename = getInstallationDirectory() + "/ryzom_installer_uninstalling_old_client";
+
+	if (on)
+	{
+		// writing a file to avoid asking several times when relaunching installer
+		QFile file(filename);
+
+		if (file.open(QFile::WriteOnly))
+		{
+			file.write("empty");
+			file.close();
+		}
+	}
+	else
+	{
+		// deleting the temporary file
+		if (QFile::exists(filename)) QFile::remove(filename);
+	}
 }
 
 QString CConfigFile::expandVariables(const QString &str) const
@@ -983,7 +999,7 @@ OperationStep CConfigFile::getInstallNextStep() const
 	if (!settings.contains("InstallLocation")) return CreateAddRemoveEntry;
 #endif
 
-	if (!m_uninstallingOldClient && m_shouldUninstallOldClient && !getSrcServerDirectory().isEmpty() && QFile::exists(getSrcServerDirectory() + "/Uninstall.exe"))
+	if (!uninstallingOldClient() && m_shouldUninstallOldClient && !getSrcServerDirectory().isEmpty() && QFile::exists(getSrcServerDirectory() + "/Uninstall.exe"))
 	{
 		return UninstallOldClient;
 	}
diff --git a/code/ryzom/tools/client/ryzom_installer/src/configfile.h b/code/ryzom/tools/client/ryzom_installer/src/configfile.h
index 998565dda..ecad07af3 100644
--- a/code/ryzom/tools/client/ryzom_installer/src/configfile.h
+++ b/code/ryzom/tools/client/ryzom_installer/src/configfile.h
@@ -152,7 +152,6 @@ private:
 	QString m_srcDirectory;
 	bool m_use64BitsClient;
 	bool m_shouldUninstallOldClient;
-	bool m_uninstallingOldClient;
 	QString m_language;
 
 	QString m_defaultConfigPath;