first thoughts about downloads path changing

core/utils/CMakeLists.txt

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+target_sources(squawk PRIVATE
+  pathcheck.h
+  pathcheck.cpp
+)

core/utils/pathcheck.cpp

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+#include "pathcheck.h"
+
+QString Utils::downloadsPathCheck()
+{
+    QSettings settings;
+    QVariant dpv = settings.value("downloadsPath");
+    QString path;
+    if (!dpv.isValid()) {
+        path = defaultDownloadsPath();
+        qDebug() << "no downloadsPath variable in config, using default" << path;
+        path = getCanonicalWritablePath(path);
+        return path;
+    } else {
+        path = dpv.toString();
+        path = getCanonicalWritablePath(path);
+        if (path.size() == 0) {
+            path = defaultDownloadsPath();
+            qDebug() << "falling back to the default downloads path" << path;
+            path = getCanonicalWritablePath(path);
+        }
+        return path;
+    }
+}
+
+QString Utils::defaultDownloadsPath()
+{
+    return QStandardPaths::writableLocation(QStandardPaths::DownloadLocation) + "/" + QApplication::applicationName();
+}
+
+QString Utils::getCanonicalWritablePath(const QString& path)
+{
+    QDir location(path);
+    if (!location.exists()) {
+        bool res = location.mkpath(location.canonicalPath());
+        if (!res) {
+            qDebug() << "couldn't create directory" << path;
+            return "";
+        }
+    }
+    QFileInfo info(location.canonicalPath());
+    if (info.isWritable()) {
+        return location.canonicalPath();
+    } else {
+        qDebug() << "directory" << path << "is not writable";
+        return "";
+    }
+}

core/utils/pathcheck.h

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+#ifndef PATHCHECK_H
+#define PATHCHECK_H
+
+#include <QString>
+#include <QStandardPaths>
+#include <QSettings>
+#include <QApplication>
+#include <QDir>
+#include <QFileInfo>
+#include <QDebug>
+
+namespace Utils {
+
+QString downloadsPathCheck();
+QString defaultDownloadsPath();
+
+QString getCanonicalWritablePath(const QString& path);
+
+}
+
+#endif // PATHCHECK_H