ProjectExplorer: Add clangdExecutable to IDevice

Change-Id: I131212326696887d3a5644a35788f6a522dbee45
Reviewed-by: hjk <hjk@qt.io>

src/plugins/docker/dockerdevice.cpp

@@ -68,6 +68,7 @@
 #include <QToolButton>
 
 #include <numeric>
+#include <optional>
 
 #ifdef Q_OS_UNIX
 #include <sys/types.h>
@@ -168,6 +169,13 @@ public:
     void stopCurrentContainer();
     void fetchSystemEnviroment();
 
+    std::optional<FilePath> clangdExecutable() const
+    {
+        if (m_data.clangdExecutable.isEmpty())
+            return std::nullopt;
+        return m_data.clangdExecutable;
+    }
+
     bool addTemporaryMount(const FilePath &path, const FilePath &containerPath);
 
     QStringList createMountArgs() const;
@@ -1160,4 +1168,9 @@ bool DockerDevice::prepareForBuild(const Target *target)
     return d->prepareForBuild(target);
 }
 
+std::optional<FilePath> DockerDevice::clangdExecutable() const
+{
+    return d->clangdExecutable();
+}
+
 } // namespace Docker::Internal