cli: search: implement -r, cleanup of options that don't belong there

cli/commandsearch.cpp

@@ -7,25 +7,26 @@ int CommandSearch::handle(QStringList arguments)
 {
 	QCommandLineParser parser;
 	parser.addOptions({
-		{{"r", "reverse"}, "Print most-recent changed files first"},
-		{"pattern",
-		 "Only delete files from index matching the pattern, e. g. */.git/*. Only applies to --deleted or standalone.",
-		 "pattern"},
+		{{"r", "reverse"},
+		 "Print most-recent changed files first. This is short for adding \"sort:(mtime asc)\" to the query."},
 	});
 
 	parser.addHelpOption();
-	parser.addPositionalArgument("delete", "Delete paths from the index", "delete [paths...]");
-
 	parser.process(arguments);
-	bool reverse = parser.isSet("reverse");
-	if(reverse)
-	{
-		throw QSSGeneralException("Reverse option to be implemented");
-	}
 
 	QStringList files = parser.positionalArguments();
 	QString queryStrings = files.join(' ');
-	auto results = dbService->search(QSSQuery::build(queryStrings));
+	QSSQuery query = QSSQuery::build(queryStrings);
+	bool reverse = parser.isSet("reverse");
+	if(reverse)
+	{
+		SortCondition sc;
+		sc.field = FILE_MTIME;
+		sc.order = ASC;
+		query.addSortCondition(sc);
+	}
+
+	auto results = dbService->search(query);
 
 	for(SearchResult &result : results)
 	{

shared/qssquery.cpp

@@ -23,6 +23,11 @@ QueryType QSSQuery::getQueryType()
 	return static_cast<QueryType>(tokensMask & COMBINED);
 }
 
+void QSSQuery::addSortCondition(SortCondition sc)
+{
+	this->sortConditions.append(sc);
+}
+
 bool QSSQuery::checkParanthesis(QString expression)
 {
 	QStack<QChar> open;

shared/qssquery.h

@@ -52,6 +52,7 @@ class QSSQuery
 	{
 		return tokensMask;
 	}
+	void addSortCondition(SortCondition sc);
 	static bool checkParanthesis(QString query);
 	static QSSQuery build(QString query);
 };