44 lines
1.8 KiB
C#
44 lines
1.8 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace BS.SharedLauncher.Utils
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{
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public static class PathUtils
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{
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/// <summary>
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/// Creates a relative path from one file or folder to another.
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/// From https://stackoverflow.com/questions/275689/how-to-get-relative-path-from-absolute-path
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/// </summary>
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/// <param name="fromPath">Contains the directory that defines the start of the relative path.</param>
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/// <param name="toPath">Contains the path that defines the endpoint of the relative path.</param>
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/// <returns>The relative path from the start directory to the end path or <c>toPath</c> if the paths are not related.</returns>
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/// <exception cref="ArgumentNullException"></exception>
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/// <exception cref="UriFormatException"></exception>
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/// <exception cref="InvalidOperationException"></exception>
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public static string MakeRelativePath(string fromPath, string toPath)
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{
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if (string.IsNullOrEmpty(fromPath)) throw new ArgumentNullException("fromPath");
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if (string.IsNullOrEmpty(toPath)) throw new ArgumentNullException("toPath");
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Uri fromUri = new Uri(fromPath);
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Uri toUri = new Uri(toPath);
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if (fromUri.Scheme != toUri.Scheme) { return toPath; } // path can't be made relative.
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Uri relativeUri = fromUri.MakeRelativeUri(toUri);
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string relativePath = Uri.UnescapeDataString(relativeUri.ToString());
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if (toUri.Scheme.Equals("file", StringComparison.InvariantCultureIgnoreCase))
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{
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relativePath = relativePath.Replace(Path.AltDirectorySeparatorChar, Path.DirectorySeparatorChar);
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}
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return relativePath;
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}
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}
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}
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