Meson: Flatten directory hierarchy

Keep tests/ and icons/ but put the rest into the toplevel.

The previous setup was so different from the rest of the bunch that
it regularly stuck out in maintenance tasks.

Change-Id: I69821be6268f69682353a388f6bb1fa343215303
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>

src/plugins/mesonprojectmanager/ninjaparser.cpp

@@ -0,0 +1,49 @@
+// Copyright (C) 2020 Alexis Jeandet.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
+
+#include "ninjaparser.h"
+
+#include <utils/fileutils.h>
+
+namespace MesonProjectManager {
+namespace Internal {
+
+NinjaParser::NinjaParser() {}
+
+std::optional<int> NinjaParser::extractProgress(const QString &line)
+{
+    auto progress = m_progressRegex.match(line);
+    if (progress.hasMatch()) {
+        auto total = progress.captured(2).toInt();
+        auto pos = progress.captured(1).toInt();
+        return pos * 100 / total;
+    }
+    return std::nullopt;
+}
+
+void NinjaParser::setSourceDirectory(const Utils::FilePath &sourceDir)
+{
+    emit newSearchDirFound(sourceDir);
+}
+
+Utils::OutputLineParser::Result NinjaParser::handleLine(const QString &line,
+                                                        Utils::OutputFormat type)
+{
+    if (type == Utils::OutputFormat::StdOutFormat) {
+        auto progress = extractProgress(line);
+        if (progress) {
+            emit reportProgress(*progress);
+            //return ProjectExplorer::OutputTaskParser::Status::InProgress;
+        }
+    }
+    return ProjectExplorer::OutputTaskParser::Status::NotHandled;
+}
+
+bool NinjaParser::hasFatalErrors() const
+{
+    // TODO
+    return false;
+}
+
+} // namespace Internal
+} // namespace MesonProjectManager