NOISSUE Flatten gui and logic libraries into MultiMC

launcher/RecursiveFileSystemWatcher.cpp

@@ -0,0 +1,111 @@
+#include "RecursiveFileSystemWatcher.h"
+
+#include <QRegularExpression>
+#include <QDebug>
+
+RecursiveFileSystemWatcher::RecursiveFileSystemWatcher(QObject *parent)
+    : QObject(parent), m_watcher(new QFileSystemWatcher(this))
+{
+    connect(m_watcher, &QFileSystemWatcher::fileChanged, this,
+            &RecursiveFileSystemWatcher::fileChange);
+    connect(m_watcher, &QFileSystemWatcher::directoryChanged, this,
+            &RecursiveFileSystemWatcher::directoryChange);
+}
+
+void RecursiveFileSystemWatcher::setRootDir(const QDir &root)
+{
+    bool wasEnabled = m_isEnabled;
+    disable();
+    m_root = root;
+    setFiles(scanRecursive(m_root));
+    if (wasEnabled)
+    {
+        enable();
+    }
+}
+void RecursiveFileSystemWatcher::setWatchFiles(const bool watchFiles)
+{
+    bool wasEnabled = m_isEnabled;
+    disable();
+    m_watchFiles = watchFiles;
+    if (wasEnabled)
+    {
+        enable();
+    }
+}
+
+void RecursiveFileSystemWatcher::enable()
+{
+    if (m_isEnabled)
+    {
+        return;
+    }
+    Q_ASSERT(m_root != QDir::root());
+    addFilesToWatcherRecursive(m_root);
+    m_isEnabled = true;
+}
+void RecursiveFileSystemWatcher::disable()
+{
+    if (!m_isEnabled)
+    {
+        return;
+    }
+    m_isEnabled = false;
+    m_watcher->removePaths(m_watcher->files());
+    m_watcher->removePaths(m_watcher->directories());
+}
+
+void RecursiveFileSystemWatcher::setFiles(const QStringList &files)
+{
+    if (files != m_files)
+    {
+        m_files = files;
+        emit filesChanged();
+    }
+}
+
+void RecursiveFileSystemWatcher::addFilesToWatcherRecursive(const QDir &dir)
+{
+    m_watcher->addPath(dir.absolutePath());
+    for (const QString &directory : dir.entryList(QDir::Dirs | QDir::NoDotAndDotDot))
+    {
+        addFilesToWatcherRecursive(dir.absoluteFilePath(directory));
+    }
+    if (m_watchFiles)
+    {
+        for (const QFileInfo &info : dir.entryInfoList(QDir::Files))
+        {
+            m_watcher->addPath(info.absoluteFilePath());
+        }
+    }
+}
+QStringList RecursiveFileSystemWatcher::scanRecursive(const QDir &directory)
+{
+    QStringList ret;
+    if(!m_matcher)
+    {
+        return {};
+    }
+    for (const QString &dir : directory.entryList(QDir::Dirs | QDir::NoDotAndDotDot | QDir::Hidden))
+    {
+        ret.append(scanRecursive(directory.absoluteFilePath(dir)));
+    }
+    for (const QString &file : directory.entryList(QDir::Files | QDir::Hidden))
+    {
+        auto relPath = m_root.relativeFilePath(directory.absoluteFilePath(file));
+        if (m_matcher->matches(relPath))
+        {
+            ret.append(relPath);
+        }
+    }
+    return ret;
+}
+
+void RecursiveFileSystemWatcher::fileChange(const QString &path)
+{
+    emit fileChanged(path);
+}
+void RecursiveFileSystemWatcher::directoryChange(const QString &path)
+{
+    setFiles(scanRecursive(m_root));
+}