repo creation with initial code after cloning public repo

2026-02-19 07:36:25 -05:00
commit 460884fea3
2860 changed files with 650825 additions and 0 deletions
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+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using MediaBrowser.Model.IO;
+using Microsoft.Extensions.Logging;
+
+namespace MediaBrowser.Controller.IO;
+
+/// <summary>
+/// Helper methods for file system management.
+/// </summary>
+public static class FileSystemHelper
+{
+    /// <summary>
+    /// Deletes the file.
+    /// </summary>
+    /// <param name="fileSystem">The fileSystem.</param>
+    /// <param name="path">The path.</param>
+    /// <param name="logger">The logger.</param>
+    public static void DeleteFile(IFileSystem fileSystem, string path, ILogger logger)
+    {
+        try
+        {
+            fileSystem.DeleteFile(path);
+        }
+        catch (UnauthorizedAccessException ex)
+        {
+            logger.LogError(ex, "Error deleting file {Path}", path);
+        }
+        catch (IOException ex)
+        {
+            logger.LogError(ex, "Error deleting file {Path}", path);
+        }
+    }
+
+    /// <summary>
+    /// Recursively delete empty folders.
+    /// </summary>
+    /// <param name="fileSystem">The fileSystem.</param>
+    /// <param name="path">The path.</param>
+    /// <param name="logger">The logger.</param>
+    public static void DeleteEmptyFolders(IFileSystem fileSystem, string path, ILogger logger)
+    {
+        foreach (var directory in fileSystem.GetDirectoryPaths(path))
+        {
+            DeleteEmptyFolders(fileSystem, directory, logger);
+            if (!fileSystem.GetFileSystemEntryPaths(directory).Any())
+            {
+                try
+                {
+                    Directory.Delete(directory, false);
+                }
+                catch (UnauthorizedAccessException ex)
+                {
+                    logger.LogError(ex, "Error deleting directory {Path}", directory);
+                }
+                catch (IOException ex)
+                {
+                    logger.LogError(ex, "Error deleting directory {Path}", directory);
+                }
+            }
+        }
+    }
+
+    /// <summary>
+    /// Resolves a single link hop for the specified path.
+    /// </summary>
+    /// <remarks>
+    /// Returns <c>null</c> if the path is not a symbolic link or the filesystem does not support link resolution (e.g., exFAT).
+    /// </remarks>
+    /// <param name="path">The file path to resolve.</param>
+    /// <returns>
+    /// A <see cref="FileInfo"/> representing the next link target if the path is a link; otherwise, <c>null</c>.
+    /// </returns>
+    private static FileInfo? Resolve(string path)
+    {
+        try
+        {
+            return File.ResolveLinkTarget(path, returnFinalTarget: false) as FileInfo;
+        }
+        catch (IOException)
+        {
+            // Filesystem doesn't support links (e.g., exFAT).
+            return null;
+        }
+    }
+
+    /// <summary>
+    /// Gets the target of the specified file link.
+    /// </summary>
+    /// <remarks>
+    /// This helper exists because of this upstream runtime issue; https://github.com/dotnet/runtime/issues/92128.
+    /// </remarks>
+    /// <param name="linkPath">The path of the file link.</param>
+    /// <param name="returnFinalTarget">true to follow links to the final target; false to return the immediate next link.</param>
+    /// <returns>
+    /// A <see cref="FileInfo"/> if the <paramref name="linkPath"/> is a link, regardless of if the target exists; otherwise, <c>null</c>.
+    /// </returns>
+    public static FileInfo? ResolveLinkTarget(string linkPath, bool returnFinalTarget = false)
+    {
+        // Check if the file exists so the native resolve handler won't throw at us.
+        if (!File.Exists(linkPath))
+        {
+            return null;
+        }
+
+        if (!returnFinalTarget)
+        {
+            return Resolve(linkPath);
+        }
+
+        var targetInfo = Resolve(linkPath);
+        if (targetInfo is null || !targetInfo.Exists)
+        {
+            return targetInfo;
+        }
+
+        var currentPath = targetInfo.FullName;
+        var visited = new HashSet<string>(StringComparer.Ordinal) { linkPath, currentPath };
+
+        while (true)
+        {
+            var linkInfo = Resolve(currentPath);
+            if (linkInfo is null)
+            {
+                break;
+            }
+
+            var targetPath = linkInfo.FullName;
+
+            // If an infinite loop is detected, return the file info for the
+            // first link in the loop we encountered.
+            if (!visited.Add(targetPath))
+            {
+                return new FileInfo(targetPath);
+            }
+
+            targetInfo = linkInfo;
+            currentPath = targetPath;
+
+            // Exit if the target doesn't exist, so the native resolve handler won't throw at us.
+            if (!targetInfo.Exists)
+            {
+                break;
+            }
+        }
+
+        return targetInfo;
+    }
+
+    /// <summary>
+    /// Gets the target of the specified file link.
+    /// </summary>
+    /// <remarks>
+    /// This helper exists because of this upstream runtime issue; https://github.com/dotnet/runtime/issues/92128.
+    /// </remarks>
+    /// <param name="fileInfo">The file info of the file link.</param>
+    /// <param name="returnFinalTarget">true to follow links to the final target; false to return the immediate next link.</param>
+    /// <returns>
+    /// A <see cref="FileInfo"/> if the <paramref name="fileInfo"/> is a link, regardless of if the target exists; otherwise, <c>null</c>.
+    /// </returns>
+    public static FileInfo? ResolveLinkTarget(FileInfo fileInfo, bool returnFinalTarget = false)
+    {
+        ArgumentNullException.ThrowIfNull(fileInfo);
+
+        return ResolveLinkTarget(fileInfo.FullName, returnFinalTarget);
+    }
+}