rbutil: Fix cache size calculation.

We're using Qt's caching mechanism since long, which uses subfolders, so
we need to recursively traverse that to get the size of the cache
folder.

Change-Id: I8425016f60d0575013110e708b539833a8098246

3 files changed, 16 insertions, 6 deletions

diff --git a/rbutil/rbutilqt/base/utils.cpp b/rbutil/rbutilqt/base/utils.cpp
index 3ab8aa6906..f2d3f04887 100644
--- a/rbutil/rbutilqt/base/utils.cpp
+++ b/rbutil/rbutilqt/base/utils.cpp
@@ -1046,3 +1046,17 @@ bool Utils::ejectDevice(QString device)
     return false;
 }
 
+
+qint64 Utils::recursiveFolderSize(QString path)
+{
+    qint64 size = 0;
+    QList<QFileInfo> items = QDir(path).entryInfoList(QDir::Files | QDir::NoDotAndDotDot);
+    for (auto item: items) {
+        size += item.size();
+    }
+    QList<QString> folders = QDir(path).entryList(QDir::Dirs | QDir::NoDotAndDotDot);
+    for (auto folder: folders) {
+        size += recursiveFolderSize(path + "/" + folder);
+    }
+    return size;
+}
diff --git a/rbutil/rbutilqt/base/utils.h b/rbutil/rbutilqt/base/utils.h
index f46f713525..7f27c7d321 100644
--- a/rbutil/rbutilqt/base/utils.h
+++ b/rbutil/rbutilqt/base/utils.h
@@ -57,6 +57,7 @@ public:
     static QMap<QString, QList<int> > findRunningProcess(QStringList names);
     static QList<int> suspendProcess(QList<int> pidlist, bool suspend);
     static bool ejectDevice(QString device);
+    static qint64 recursiveFolderSize(QString path);
 };
 
 #endif
diff --git a/rbutil/rbutilqt/configure.cpp b/rbutil/rbutilqt/configure.cpp
index c2ab61b36d..507d0bec41 100644
--- a/rbutil/rbutilqt/configure.cpp
+++ b/rbutil/rbutilqt/configure.cpp
@@ -306,12 +306,7 @@ void Config::setUserSettings()
 
 void Config::updateCacheInfo(QString path)
 {
-    QList<QFileInfo> fs;
-    fs = QDir(path + "/rbutil-cache/").entryInfoList(QDir::Files | QDir::NoDotAndDotDot);
-    qint64 sz = 0;
-    for(int i = 0; i < fs.size(); i++) {
-        sz += fs.at(i).size();
-    }
+    qint64 sz = Utils::recursiveFolderSize(path + "/rbutil-cache");
     ui.cacheSize->setText(tr("Current cache size is %L1 kiB.")
             .arg(sz/1024));
 }