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/toolwrapper.cpp

@@ -0,0 +1,65 @@
+// 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 "toolwrapper.h"
+
+#include <utils/qtcprocess.h>
+
+namespace MesonProjectManager {
+namespace Internal {
+
+ToolWrapper::ToolWrapper(const QString &name, const Utils::FilePath &path, bool autoDetected)
+    : m_version(read_version(path))
+    , m_isValid{path.exists() && m_version.isValid}
+    , m_autoDetected{autoDetected}
+    , m_id{Utils::Id::fromString(QUuid::createUuid().toString())}
+    , m_exe{path}
+    , m_name{name}
+{}
+
+ToolWrapper::ToolWrapper(const QString &name,
+                         const Utils::FilePath &path,
+                         const Utils::Id &id,
+                         bool autoDetected)
+    : m_version(read_version(path))
+    , m_isValid{path.exists() && m_version.isValid}
+    , m_autoDetected{autoDetected}
+    , m_id{id}
+    , m_exe{path}
+    , m_name{name}
+{
+    QTC_ASSERT(m_id.isValid(), m_id = Utils::Id::fromString(QUuid::createUuid().toString()));
+}
+
+void ToolWrapper::setExe(const Utils::FilePath &newExe)
+{
+    m_exe = newExe;
+    m_version = read_version(m_exe);
+}
+
+Version ToolWrapper::read_version(const Utils::FilePath &toolPath)
+{
+    if (toolPath.toFileInfo().isExecutable()) {
+        Utils::QtcProcess process;
+        process.setCommand({ toolPath, { "--version" } });
+        process.start();
+        if (process.waitForFinished())
+            return Version::fromString(process.cleanedStdOut());
+    }
+    return {};
+}
+
+std::optional<Utils::FilePath> ToolWrapper::findTool(const QStringList &exeNames)
+{
+    using namespace Utils;
+    Environment systemEnvironment = Environment::systemEnvironment();
+    for (const auto &exe : exeNames) {
+        const FilePath exe_path = systemEnvironment.searchInPath(exe);
+        if (exe_path.exists())
+            return exe_path;
+    }
+    return std::nullopt;
+}
+
+} // namespace Internal
+} // namespace MesonProjectManager