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59 lines
No EOL
2.7 KiB
C#
59 lines
No EOL
2.7 KiB
C#
// Copyright (C) 2025, The Duplicati Team
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// https://duplicati.com, hello@duplicati.com
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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using System;
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using System.Collections.Generic;
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using System.CommandLine.Builder;
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using System.Linq;
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namespace Duplicati.Library.Utility;
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public static class HelpOptionExtensions
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{
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/// <summary>
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/// Aliases to support for help command
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/// </summary>
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private static readonly string[] AlternativeHelpStrings = ["help", "/help","--help", "usage", "/usage", "--usage", "/h", "-h"];
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/// <summary>
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/// Adds the following aliases: "help", "/help", "--usage", "/usage".
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/// These aliases will work the same way as the default help options (-h, --help).
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/// </summary>
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/// <param name="builder">The command line builder to extend.</param>
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/// <returns>The command line builder with additional help aliases.</returns>
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public static CommandLineBuilder UseAdditionalHelpAliases(this CommandLineBuilder builder)
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{
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var rootHelpOption = builder.Command.Options.FirstOrDefault(o => o.GetType().Name == "HelpOption");
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if (rootHelpOption == null) return builder;
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foreach (var alias in AlternativeHelpStrings)
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if (!rootHelpOption.Aliases.Contains(alias))
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rootHelpOption.AddAlias(alias);
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return builder;
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}
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/// <summary>
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/// Returns true if any of the arguments are any of the help strings.
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/// </summary>
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/// <param name="args">Arguments</param>
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public static bool IsArgumentAnyHelpString(IEnumerable<string> args)
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=> args != null && AlternativeHelpStrings.Any(x => args.Contains(x, StringComparer.OrdinalIgnoreCase));
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} |