From 69be23c5f629884465dec98efcb9d5a2678b4df5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petr=20Mr=C3=A1zek?= <peterix@gmail.com>
Date: Fri, 18 Nov 2016 16:04:08 +0100
Subject: GH-1726 better failure detection for updates

Instead of just checking if the new version started, make sure
it is able to write its IPC key to a file and then use the key
to connect to the process.
---
 application/UpdateController.h | 44 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 application/UpdateController.h

(limited to 'application/UpdateController.h')

diff --git a/application/UpdateController.h b/application/UpdateController.h
new file mode 100644
index 00000000..2b258701
--- /dev/null
+++ b/application/UpdateController.h
@@ -0,0 +1,44 @@
+#pragma once
+
+#include <QString>
+#include <QList>
+#include <updater/GoUpdate.h>
+
+class QWidget;
+
+class UpdateController
+{
+public:
+	UpdateController(QWidget * parent, const QString &root, const QString updateFilesDir, GoUpdate::OperationList operations);
+	void installUpdates();
+
+private:
+	void fail();
+	bool rollback();
+
+private:
+	QString m_root;
+	QString m_updateFilesDir;
+	GoUpdate::OperationList m_operations;
+	QWidget * m_parent;
+
+	struct BackupEntry
+	{
+		// path where we got the new file from
+		QString update;
+		// path of what is being actually updated
+		QString original;
+		// path where the backup of the updated file was placed
+		QString backup;
+	};
+	QList <BackupEntry> m_replace_backups;
+	QList <BackupEntry> m_delete_backups;
+	enum Failure
+	{
+		Replace,
+		Delete,
+		Start,
+		Nothing
+	} m_failedOperationType = Nothing;
+	QString m_failedFile;
+};
-- 
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