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/ninjatoolkitaspect.cpp

@@ -0,0 +1,77 @@
+// 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 "ninjatoolkitaspect.h"
+
+#include "toolkitaspectwidget.h"
+
+#include <utils/qtcassert.h>
+
+namespace MesonProjectManager {
+namespace Internal {
+
+static const char TOOL_ID[] = "MesonProjectManager.MesonKitInformation.Ninja";
+
+NinjaToolKitAspect::NinjaToolKitAspect()
+{
+    setObjectName(QLatin1String("NinjaKitAspect"));
+    setId(TOOL_ID);
+    setDisplayName(tr("Ninja Tool"));
+    setDescription(tr("The Ninja tool to use when building a project with Meson.<br>"
+                      "This setting is ignored when using other build systems."));
+    setPriority(9000);
+}
+
+ProjectExplorer::Tasks NinjaToolKitAspect::validate(const ProjectExplorer::Kit *k) const
+{
+    ProjectExplorer::Tasks tasks;
+    const auto tool = ninjaTool(k);
+    if (tool && !tool->isValid())
+        tasks << ProjectExplorer::BuildSystemTask{ProjectExplorer::Task::Warning,
+                                                  tr("Cannot validate this Ninja executable.")};
+    return tasks;
+}
+
+void NinjaToolKitAspect::setup(ProjectExplorer::Kit *k)
+{
+    const auto tool = ninjaTool(k);
+    if (!tool) {
+        const auto autoDetected = MesonTools::ninjaWrapper();
+        if (autoDetected)
+            setNinjaTool(k, autoDetected->id());
+    }
+}
+
+void NinjaToolKitAspect::fix(ProjectExplorer::Kit *k)
+{
+    setup(k);
+}
+
+ProjectExplorer::KitAspect::ItemList NinjaToolKitAspect::toUserOutput(
+    const ProjectExplorer::Kit *k) const
+{
+    const auto tool = ninjaTool(k);
+    if (tool)
+        return {{tr("Ninja"), tool->name()}};
+    return {{tr("Ninja"), tr("Unconfigured")}};
+}
+
+ProjectExplorer::KitAspectWidget *NinjaToolKitAspect::createConfigWidget(ProjectExplorer::Kit *k) const
+{
+    QTC_ASSERT(k, return nullptr);
+    return new ToolKitAspectWidget{k, this, ToolKitAspectWidget::ToolType::Ninja};
+}
+
+void NinjaToolKitAspect::setNinjaTool(ProjectExplorer::Kit *kit, Utils::Id id)
+{
+    QTC_ASSERT(kit && id.isValid(), return );
+    kit->setValue(TOOL_ID, id.toSetting());
+}
+
+Utils::Id NinjaToolKitAspect::ninjaToolId(const ProjectExplorer::Kit *kit)
+{
+    QTC_ASSERT(kit, return {});
+    return Utils::Id::fromSetting(kit->value(TOOL_ID));
+}
+} // namespace Internal
+} // namespace MesonProjectManager