59 lines
1.8 KiB
C#
59 lines
1.8 KiB
C#
// Copyright (c) .NET Foundation. All rights reserved.
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// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
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// System.AppContext.GetData is not available in these frameworks
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#if !NET451 && !NET452 && !NET46 && !NET461
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using System;
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using System.Diagnostics;
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using System.IO;
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using System.Runtime.InteropServices;
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namespace Microsoft.Extensions.CommandLineUtils
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{
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/// <summary>
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/// Utilities for finding the "dotnet.exe" file from the currently running .NET Core application
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/// </summary>
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internal static class DotNetMuxer
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{
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private const string MuxerName = "dotnet";
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static DotNetMuxer()
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{
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MuxerPath = TryFindMuxerPath();
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}
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/// <summary>
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/// The full filepath to the .NET Core muxer.
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/// </summary>
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public static string MuxerPath { get; }
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/// <summary>
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/// Finds the full filepath to the .NET Core muxer,
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/// or returns a string containing the default name of the .NET Core muxer ('dotnet').
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/// </summary>
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/// <returns>The path or a string named 'dotnet'.</returns>
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public static string MuxerPathOrDefault()
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=> MuxerPath ?? MuxerName;
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private static string TryFindMuxerPath()
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{
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var fileName = MuxerName;
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if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
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{
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fileName += ".exe";
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}
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var mainModule = Process.GetCurrentProcess().MainModule;
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if (!string.IsNullOrEmpty(mainModule?.FileName)
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&& Path.GetFileName(mainModule.FileName).Equals(fileName, StringComparison.OrdinalIgnoreCase))
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{
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return mainModule.FileName;
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}
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return null;
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}
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}
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}
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#endif
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