reverting version

include/Module/CommandShell.h

@@ -0,0 +1,45 @@
+#pragma once
+
+#include <Arduino.h>
+
+#include "Module/Terminal.h"
+#include "Module/CircularBuffer.h"
+#include "Module/Runner.h"
+
+class CommandShell {
+   public:
+    CommandShell(Runner *runner);
+
+    void setTerm(Terminal *term);
+    Terminal *term();
+
+    void showGreetings(bool = true);
+    void showFarewell(bool = true);
+
+    void clearHistory();
+    void addHistory(const char *);
+    bool getHistoryInput(String &);
+    void setEditLine(const String &);
+    bool active();
+    void loop();
+
+   private:
+    size_t printGreetings(Print *);
+    size_t printFarewell(Print *);
+    size_t printPrompt(Print *);
+
+    void onOpen(Print *out);
+    void onClose(Print *out);
+    void onData(const char *);
+    void onHistory(Print *out);
+    bool getLastInput(String &);
+
+   private:
+    CircularBuffer<String, 4> _history;
+    Terminal *_term;
+    Runner *_runner;
+    String _path;
+    bool _active;
+    bool _greetings;
+    bool _farewell;
+};