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// Copyright (C) 2015, The Duplicati Team
// http://www.duplicati.com, info@duplicati.com
//
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
// License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
using System;
using System.Collections.Generic;
using System.Linq;
namespace Duplicati.Library.Utility
{
public class FilterCollector
{
private List<Library.Utility.IFilter> m_filters = new List<Library.Utility.IFilter>();
private Library.Utility.IFilter Filter
{
get
{
if (m_filters.Count == 0)
return new Library.Utility.FilterExpression();
else if (m_filters.Count == 1)
return m_filters[0];
else
return m_filters.Aggregate((a,b) => Library.Utility.JoinedFilterExpression.Join(a, b));
}
}
private Dictionary<string, string> DoExtractOptions(List<string> args, Func<string, string, bool> callbackHandler = null)
{
return Library.Utility.CommandLineParser.ExtractOptions(args, (key, value) => {
if (key.Equals("include", StringComparison.OrdinalIgnoreCase))
{
if (!string.IsNullOrEmpty(value))
{
m_filters.Add(new Library.Utility.FilterExpression(Library.Utility.Utility.ExpandEnvironmentVariables(value), true));
return false;
}
}
else if (key.Equals("exclude", StringComparison.OrdinalIgnoreCase))
{
if (!string.IsNullOrEmpty(value))
{
m_filters.Add(new Library.Utility.FilterExpression(Library.Utility.Utility.ExpandEnvironmentVariables(value), false));
return false;
}
}
else if (key.Equals("default-filters", StringComparison.OrdinalIgnoreCase) || key.Equals("default-filter", StringComparison.OrdinalIgnoreCase))
{
m_filters.AddRange(DefaultFilters.GetFilters(Library.Utility.Utility.ExpandEnvironmentVariables(value ?? string.Empty)));
return false;
}
if (callbackHandler != null)
return callbackHandler(key, value);
return true;
});
}
public static Tuple<Dictionary<string, string>, Library.Utility.IFilter> ExtractOptions(List<string> args, Func<string, string, bool> callbackHandler = null)
{
var fc = new FilterCollector();
var opts = fc.DoExtractOptions(args, callbackHandler);
return new Tuple<Dictionary<string, string>, Library.Utility.IFilter>(opts, fc.Filter);
}
}
}
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