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/mesonrunconfiguration.cpp

@@ -0,0 +1,79 @@
+// 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 "mesonrunconfiguration.h"
+
+#include "mesonpluginconstants.h"
+
+#include <projectexplorer/buildsystem.h>
+#include <projectexplorer/desktoprunconfiguration.h>
+#include <projectexplorer/environmentaspect.h>
+#include <projectexplorer/localenvironmentaspect.h>
+#include <projectexplorer/projectexplorerconstants.h>
+#include <projectexplorer/runconfigurationaspects.h>
+#include <projectexplorer/target.h>
+
+#include <utils/environment.h>
+#include <utils/hostosinfo.h>
+
+using namespace ProjectExplorer;
+
+namespace MesonProjectManager {
+namespace Internal {
+
+MesonRunConfiguration::MesonRunConfiguration(Target *target, Utils::Id id)
+    : RunConfiguration{target, id}
+{
+    auto envAspect = addAspect<LocalEnvironmentAspect>(target);
+
+    addAspect<ExecutableAspect>(target, ExecutableAspect::RunDevice);
+    addAspect<ArgumentsAspect>(macroExpander());
+    addAspect<WorkingDirectoryAspect>(macroExpander(), envAspect);
+    addAspect<TerminalAspect>();
+
+    auto libAspect = addAspect<UseLibraryPathsAspect>();
+    connect(libAspect, &UseLibraryPathsAspect::changed,
+            envAspect, &EnvironmentAspect::environmentChanged);
+
+    if (Utils::HostOsInfo::isMacHost()) {
+        auto dyldAspect = addAspect<UseDyldSuffixAspect>();
+        connect(dyldAspect, &UseLibraryPathsAspect::changed,
+                envAspect, &EnvironmentAspect::environmentChanged);
+        envAspect->addModifier([dyldAspect](Utils::Environment &env) {
+            if (dyldAspect->value())
+                env.set(QLatin1String("DYLD_IMAGE_SUFFIX"), QLatin1String("_debug"));
+        });
+    }
+
+    envAspect->addModifier([this, libAspect](Utils::Environment &env) {
+        BuildTargetInfo bti = buildTargetInfo();
+        if (bti.runEnvModifier)
+            bti.runEnvModifier(env, libAspect->value());
+    });
+
+    setUpdater([this] { updateTargetInformation(); });
+
+    connect(target, &Target::buildSystemUpdated, this, &RunConfiguration::update);
+}
+
+void MesonRunConfiguration::updateTargetInformation()
+{
+    if (!activeBuildSystem())
+        return;
+
+    BuildTargetInfo bti = buildTargetInfo();
+    aspect<TerminalAspect>()->setUseTerminalHint(bti.usesTerminal);
+    aspect<ExecutableAspect>()->setExecutable(bti.targetFilePath);
+    aspect<WorkingDirectoryAspect>()->setDefaultWorkingDirectory(bti.workingDirectory);
+    emit aspect<LocalEnvironmentAspect>()->environmentChanged();
+}
+
+MesonRunConfigurationFactory::MesonRunConfigurationFactory()
+{
+    registerRunConfiguration<MesonRunConfiguration>("MesonProjectManager.MesonRunConfiguration");
+    addSupportedProjectType(Constants::Project::ID);
+    addSupportedTargetDeviceType(ProjectExplorer::Constants::DESKTOP_DEVICE_TYPE);
+}
+
+} // namespace Internal
+} // namespace MesonProjectManager