Add ability to provide search pattern

Emby.Server.Implementations/IO/ManagedFileSystem.cs

@@ -541,8 +541,8 @@ namespace Emby.Server.Implementations.IO
             return DriveInfo.GetDrives()
                 .Where(
                     d => (d.DriveType == DriveType.Fixed || d.DriveType == DriveType.Network || d.DriveType == DriveType.Removable)
-                        && d.IsReady
-                        && d.TotalSize != 0)
+                         && d.IsReady
+                         && d.TotalSize != 0)
                 .Select(d => new FileSystemMetadata
                 {
                     Name = d.Name,
@@ -560,11 +560,23 @@ namespace Emby.Server.Implementations.IO
         /// <inheritdoc />
         public virtual IEnumerable<FileSystemMetadata> GetFiles(string path, bool recursive = false)
         {
-            return GetFiles(path, null, false, recursive);
+            return GetFiles(path, "*", recursive);
         }
 
         /// <inheritdoc />
-        public virtual IEnumerable<FileSystemMetadata> GetFiles(string path, IReadOnlyList<string>? extensions, bool enableCaseSensitiveExtensions, bool recursive = false)
+        public virtual IEnumerable<FileSystemMetadata> GetFiles(string path, string searchPattern, bool recursive = false)
+        {
+            return GetFiles(path, searchPattern, null, false, recursive);
+        }
+
+        /// <inheritdoc />
+        public virtual IEnumerable<FileSystemMetadata> GetFiles(string path, IReadOnlyList<string>? extensions, bool enableCaseSensitiveExtensions, bool recursive)
+        {
+            return GetFiles(path, "*", extensions, enableCaseSensitiveExtensions, recursive);
+        }
+
+        /// <inheritdoc />
+        public virtual IEnumerable<FileSystemMetadata> GetFiles(string path, string searchPattern, IReadOnlyList<string>? extensions, bool enableCaseSensitiveExtensions, bool recursive = false)
         {
             var enumerationOptions = GetEnumerationOptions(recursive);
 
@@ -572,10 +584,12 @@ namespace Emby.Server.Implementations.IO
             // If we're OK with case-sensitivity, and we're only filtering for one extension, then use the native method
             if ((enableCaseSensitiveExtensions || _isEnvironmentCaseInsensitive) && extensions is not null && extensions.Count == 1)
             {
-                return ToMetadata(new DirectoryInfo(path).EnumerateFiles("*" + extensions[0], enumerationOptions));
+                searchPattern = searchPattern.EndsWith(extensions[0], StringComparison.Ordinal) ? searchPattern : searchPattern + extensions[0];
+
+                return ToMetadata(new DirectoryInfo(path).EnumerateFiles(searchPattern, enumerationOptions));
             }
 
-            var files = new DirectoryInfo(path).EnumerateFiles("*", enumerationOptions);
+            var files = new DirectoryInfo(path).EnumerateFiles(searchPattern, enumerationOptions);
 
             if (extensions is not null && extensions.Count > 0)
             {

MediaBrowser.Model/IO/IFileSystem.cs

@@ -157,8 +157,36 @@ namespace MediaBrowser.Model.IO
         /// <returns>All found files.</returns>
         IEnumerable<FileSystemMetadata> GetFiles(string path, bool recursive = false);
 
+        /// <summary>
+        /// Gets the files.
+        /// </summary>
+        /// <param name="path">The path in which to search.</param>
+        /// <param name="searchPattern">The search string to match against the names of files. This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.</param>
+        /// <param name="recursive">If set to <c>true</c> also searches in subdirectories.</param>
+        /// <returns>All found files.</returns>
+        IEnumerable<FileSystemMetadata> GetFiles(string path, string searchPattern, bool recursive = false);
+
+        /// <summary>
+        /// Gets the files.
+        /// </summary>
+        /// <param name="path">The path in which to search.</param>
+        /// <param name="extensions">The file extensions to search for.</param>
+        /// <param name="enableCaseSensitiveExtensions">Enable case-sensitive check for extensions.</param>
+        /// <param name="recursive">If set to <c>true</c> also searches in subdirectories.</param>
+        /// <returns>All found files.</returns>
         IEnumerable<FileSystemMetadata> GetFiles(string path, IReadOnlyList<string>? extensions, bool enableCaseSensitiveExtensions, bool recursive);
 
+        /// <summary>
+        /// Gets the files.
+        /// </summary>
+        /// <param name="path">The path in which to search.</param>
+        /// <param name="searchPattern">The search string to match against the names of files. This parameter can contain a combination of valid literal path and wildcard (* and ?) characters, but it doesn't support regular expressions.</param>
+        /// <param name="extensions">The file extensions to search for.</param>
+        /// <param name="enableCaseSensitiveExtensions">Enable case-sensitive check for extensions.</param>
+        /// <param name="recursive">If set to <c>true</c> also searches in subdirectories.</param>
+        /// <returns>All found files.</returns>
+        IEnumerable<FileSystemMetadata> GetFiles(string path, string searchPattern, IReadOnlyList<string>? extensions, bool enableCaseSensitiveExtensions, bool recursive);
+
         /// <summary>
         /// Gets the file system entries.
         /// </summary>