Refactoring : Introducing Command class for CLI commands (#778)

src/cli/Command.cpp

@@ -0,0 +1,80 @@
+/*
+ *  Copyright (C) 2017 KeePassXC Team <team@keepassxc.org>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 2 or (at your option)
+ *  version 3 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <cstdlib>
+#include <stdio.h>
+
+#include <QMap>
+
+#include "Command.h"
+
+#include "Clip.h"
+#include "EntropyMeter.h"
+#include "Extract.h"
+#include "List.h"
+#include "Merge.h"
+#include "Show.h"
+
+QMap<QString, Command*> commands;
+
+Command::~Command()
+{
+}
+
+int Command::execute(int, char**)
+{
+    return EXIT_FAILURE;
+}
+
+QString Command::getDescriptionLine()
+{
+
+    QString response = this->name;
+    QString space(" ");
+    QString spaces = space.repeated(15 - this->name.length());
+    response = response.append(spaces);
+    response = response.append(this->description);
+    response = response.append("\n");
+    return response;
+}
+
+void populateCommands()
+{
+    if (commands.isEmpty()) {
+        commands.insert(QString("clip"), new Clip());
+        commands.insert(QString("entropy-meter"), new EntropyMeter());
+        commands.insert(QString("extract"), new Extract());
+        commands.insert(QString("ls"), new List());
+        commands.insert(QString("merge"), new Merge());
+        commands.insert(QString("show"), new Show());
+    }
+}
+
+Command* Command::getCommand(QString commandName)
+{
+    populateCommands();
+    if (commands.contains(commandName)) {
+        return commands[commandName];
+    }
+    return nullptr;
+}
+
+QList<Command*> Command::getCommands()
+{
+    populateCommands();
+    return commands.values();
+}