refactor: move "delete old update files" logic to Updates (#5535)

CHANGELOG.md

@@ -59,6 +59,7 @@
 - Dev: `FlagsEnum` is now `constexpr`. (#5510)
 - Dev: Documented and added tests to RTL handling. (#5473)
 - Dev: Refactored 7TV/BTTV definitions out of `TwitchIrcServer` into `Application`. (#5532)
+- Dev: Refactored code that's responsible for deleting old update files. (#5535)
 - Dev: Refactored a few `#define`s into `const(expr)` and cleaned includes. (#5527)
 - Dev: Prepared for Qt 6.8 by addressing some deprecations. (#5529)
 

src/RunGui.cpp

@@ -241,22 +241,7 @@ void runGui(QApplication &a, const Paths &paths, Settings &settings,
     }
 #endif
 
-    auto thread = std::thread([dir = paths.miscDirectory] {
-        {
-            auto path = combinePath(dir, "Update.exe");
-            if (QFile::exists(path))
-            {
-                QFile::remove(path);
-            }
-        }
-        {
-            auto path = combinePath(dir, "update.zip");
-            if (QFile::exists(path))
-            {
-                QFile::remove(path);
-            }
-        }
-    });
+    updates.deleteOldFiles();
 
     // Clear the cache 1 minute after start.
     QTimer::singleShot(60 * 1000, [cachePath = paths.cacheDirectory(),

src/singletons/Updates.cpp

@@ -17,6 +17,7 @@
 #include <QProcess>
 #include <QRegularExpression>
 #include <QStringBuilder>
+#include <QtConcurrent>
 #include <semver/semver.hpp>
 
 namespace {
@@ -40,9 +41,9 @@ const QString CHATTERINO_OS = u"freebsd"_s;
 #else
 const QString CHATTERINO_OS = u"unknown"_s;
 #endif
-;
 
 }  // namespace
+
 namespace chatterino {
 
 Updates::Updates(const Paths &paths_)
@@ -75,6 +76,26 @@ bool Updates::isDowngradeOf(const QString &online, const QString &current)
     return onlineVersion < currentVersion;
 }
 
+void Updates::deleteOldFiles()
+{
+    std::ignore = QtConcurrent::run([dir{this->paths.miscDirectory}] {
+        {
+            auto path = combinePath(dir, "Update.exe");
+            if (QFile::exists(path))
+            {
+                QFile::remove(path);
+            }
+        }
+        {
+            auto path = combinePath(dir, "update.zip");
+            if (QFile::exists(path))
+            {
+                QFile::remove(path);
+            }
+        }
+    });
+}
+
 const QString &Updates::getCurrentVersion() const
 {
     return currentVersion_;

src/singletons/Updates.hpp

@@ -31,6 +31,11 @@ class Updates
 
     static bool isDowngradeOf(const QString &online, const QString &current);
 
+    /**
+     * @brief Delete old files that belong to the update process
+     */
+    void deleteOldFiles();
+
     void checkForUpdates();
     const QString &getCurrentVersion() const;
     const QString &getOnlineVersion() const;