First draft of an argument parser.

Possibility to set custom config path.

src/CMakeLists.txt

@@ -27,6 +27,7 @@ set(keepassx_SOURCES
     autotype/WildcardMatcher.cpp
     autotype/WindowSelectComboBox.cpp
     autotype/test/AutoTypeTestInterface.h
+    core/ArgumentParser.cpp
     core/AutoTypeAssociations.cpp
     core/Config.cpp
     core/Database.cpp

src/core/ArgumentParser.cpp

@@ -0,0 +1,51 @@
+/*
+ *  Copyright (C) 2013 Florian Geyer <blueice@fobos.de>
+ *
+ *  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 "ArgumentParser.h"
+
+QHash<QString, QString> ArgumentParser::parseArguments(const QStringList& args)
+{
+    QStringList argumentKeys = QStringList() << "password" << "config" << "filename";
+
+    QHash<QString, QString> argumentMap;
+
+    // TODO: needs refactoring, too much nesting
+    for (int i = 1; i < args.size(); i++) {
+        if (args[i].startsWith("--")) {
+            if (args.size() > (i + 1)) {
+                QString argument(args[i].mid(2));
+                if (argumentKeys.contains(argument)) {
+                    argumentMap.insert(argument, args[i + 1]);
+                }
+                else {
+                    qWarning("Unknown option \"%s\" with value \"%s\"", qPrintable(args[i]), qPrintable(args[i+1]));
+                }
+                i++;
+            } else {
+                qWarning("No value given for option \"%s\"", qPrintable(args[i]));
+            }
+        }
+        else if (!args[i].startsWith("-")) {
+            argumentMap.insert("filename", args[i]);
+        }
+        else {
+            qWarning("Unknown argument \"%s\"", qPrintable(args[i]));
+        }
+    }
+
+    return argumentMap;
+}

src/core/ArgumentParser.h

@@ -0,0 +1,34 @@
+/*
+ *  Copyright (C) 2013 Florian Geyer <blueice@fobos.de>
+ *
+ *  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/>.
+ */
+
+#ifndef KEEPASSX_ARGUMENT_PARSER_H
+#define KEEPASSX_ARGUMENT_PARSER_H
+
+#include "core/Global.h"
+
+#include <QtCore/QHash>
+#include <QtCore/QStringList>
+
+class ArgumentParser
+{
+
+public:
+    static QHash<QString, QString> parseArguments(const QStringList& args);
+
+};
+
+#endif // KEEPASSX_ARGUMENT_PARSER_H

src/core/Config.cpp

@@ -105,6 +105,12 @@ Config* Config::instance()
     return m_instance;
 }
 
+void Config::createConfigFromFile(QString file)
+{
+    Q_ASSERT(!m_instance);
+    m_instance = new Config(file, qApp);
+}
+
 void Config::createTempFileInstance()
 {
     Q_ASSERT(!m_instance);

src/core/Config.h

@@ -36,6 +36,7 @@ public:
     void set(const QString& key, const QVariant& value);
 
     static Config* instance();
+    static void createConfigFromFile(QString file);
     static void createTempFileInstance();
 
 private:

src/main.cpp

@@ -17,6 +17,8 @@
 
 #include <QtCore/QFile>
 
+#include "core/ArgumentParser.h"
+#include "core/Config.h"
 #include "core/Tools.h"
 #include "crypto/Crypto.h"
 #include "gui/Application.h"
@@ -34,21 +36,11 @@ int main(int argc, char** argv)
 
     Crypto::init();
 
-    QString filename;
-    QString password;
-
     const QStringList args = app.arguments();
-    for (int i = 1; i < args.size(); i++) {
-        if (args[i] == "--password" && args.size() > (i + 1)) {
-            password = args[i + 1];
-            i++;
-        }
-        else if (!args[i].startsWith("-") && QFile::exists(args[i])) {
-            filename = args[i];
-        }
-        else {
-            qWarning("Unknown argument \"%s\"", qPrintable(args[i]));
-        }
+    QHash<QString, QString> argumentMap = ArgumentParser::parseArguments(args);
+
+    if (!argumentMap.value("config").isEmpty()) {
+        Config::createConfigFromFile(argumentMap.value("config"));
     }
 
     MainWindow mainWindow;
@@ -56,8 +48,9 @@ int main(int argc, char** argv)
 
     QObject::connect(&app, SIGNAL(openFile(QString)), &mainWindow, SLOT(openDatabase(QString)));
 
-    if (!filename.isEmpty()) {
-        mainWindow.openDatabase(filename, password, QString());
+    QString filename(argumentMap.value("filename"));
+    if (!filename.isEmpty() && QFile::exists(filename)) {
+        mainWindow.openDatabase(filename, argumentMap.value("password"), QString());
     }
 
     return app.exec();