/// <summary> /// Deletes the specified empty directory. /// </summary> /// <param name="path"> /// A <see cref="String"/> containing the path of the directory to delete. /// </param> /// <exception cref="ArgumentNullException"> /// <paramref name="path"/> is <see langword="null"/>. /// </exception> /// <exception cref="ArgumentException"> /// <paramref name="path"/> is an empty string (""), contains only white /// space, or contains one or more invalid characters as defined in /// <see cref="Path.GetInvalidPathChars()"/>. /// <para> /// -or- /// </para> /// <paramref name="path"/> contains one or more components that exceed /// the drive-defined maximum length. For example, on Windows-based /// platforms, components must not exceed 255 characters. /// </exception> /// <exception cref="PathTooLongException"> /// <paramref name="path"/> exceeds the system-defined maximum length. /// For example, on Windows-based platforms, paths must not exceed /// 32,000 characters. /// </exception> /// <exception cref="DirectoryNotFoundException"> /// <paramref name="path"/> could not be found. /// </exception> /// <exception cref="UnauthorizedAccessException"> /// The caller does not have the required access permissions. /// <para> /// -or- /// </para> /// <paramref name="path"/> refers to a directory that is read-only. /// </exception> /// <exception cref="IOException"> /// <paramref name="path"/> is a file. /// <para> /// -or- /// </para> /// <paramref name="path"/> refers to a directory that is not empty. /// <para> /// -or- /// </para> /// <paramref name="path"/> refers to a directory that is in use. /// <para> /// -or- /// </para> /// <paramref name="path"/> specifies a device that is not ready. /// </exception> public static void Delete(string path) { string normalizedPath = LongPathCommon.NormalizeLongPath(path); if (!NativeMethods.RemoveDirectory(normalizedPath)) { throw LongPathCommon.GetExceptionFromLastWin32Error(); } }
/// <summary> /// Copies the specified file to a specified new file, indicating whether to overwrite an existing file. /// </summary> /// <param name="sourcePath"> /// A <see cref="String"/> containing the path of the file to copy. /// </param> /// <param name="destinationPath"> /// A <see cref="String"/> containing the new path of the file. /// </param> /// <param name="overwrite"> /// <see langword="true"/> if <paramref name="destinationPath"/> should be overwritten /// if it refers to an existing file, otherwise, <see langword="false"/>. /// </param> /// <exception cref="ArgumentNullException"> /// <paramref name="sourcePath"/> and/or <paramref name="destinationPath"/> is /// <see langword="null"/>. /// </exception> /// <exception cref="ArgumentException"> /// <paramref name="sourcePath"/> and/or <paramref name="destinationPath"/> is /// an empty string (""), contains only white space, or contains one or more /// invalid characters as defined in <see cref="Path.GetInvalidPathChars()"/>. /// <para> /// -or- /// </para> /// <paramref name="sourcePath"/> and/or <paramref name="destinationPath"/> /// contains one or more components that exceed the drive-defined maximum length. /// For example, on Windows-based platforms, components must not exceed 255 characters. /// </exception> /// <exception cref="PathTooLongException"> /// <paramref name="sourcePath"/> and/or <paramref name="destinationPath"/> /// exceeds the system-defined maximum length. For example, on Windows-based platforms, /// paths must not exceed 32,000 characters. /// </exception> /// <exception cref="FileNotFoundException"> /// <paramref name="sourcePath"/> could not be found. /// </exception> /// <exception cref="DirectoryNotFoundException"> /// One or more directories in <paramref name="sourcePath"/> and/or /// <paramref name="destinationPath"/> could not be found. /// </exception> /// <exception cref="UnauthorizedAccessException"> /// The caller does not have the required access permissions. /// <para> /// -or- /// </para> /// <paramref name="overwrite"/> is true and <paramref name="destinationPath"/> refers to a /// file that is read-only. /// </exception> /// <exception cref="IOException"> /// <paramref name="overwrite"/> is false and <paramref name="destinationPath"/> refers to /// a file that already exists. /// <para> /// -or- /// </para> /// <paramref name="sourcePath"/> and/or <paramref name="destinationPath"/> is a /// directory. /// <para> /// -or- /// </para> /// <paramref name="overwrite"/> is true and <paramref name="destinationPath"/> refers to /// a file that already exists and is in use. /// <para> /// -or- /// </para> /// <paramref name="sourcePath"/> refers to a file that is in use. /// <para> /// -or- /// </para> /// <paramref name="sourcePath"/> and/or <paramref name="destinationPath"/> specifies /// a device that is not ready. /// </exception> public static void Copy(string sourcePath, string destinationPath, bool overwrite) { string normalizedSourcePath = LongPathCommon.NormalizeLongPath(sourcePath, "sourcePath"); string normalizedDestinationPath = LongPathCommon.NormalizeLongPath(destinationPath, "destinationPath"); if (!NativeMethods.CopyFile(normalizedSourcePath, normalizedDestinationPath, !overwrite)) { throw LongPathCommon.GetExceptionFromLastWin32Error(); } }
/// <summary> /// Creates the specified directory. /// </summary> /// <param name="path"> /// A <see cref="String"/> containing the path of the directory to create. /// </param> /// <exception cref="ArgumentNullException"> /// <paramref name="path"/> is <see langword="null"/>. /// </exception> /// <exception cref="ArgumentException"> /// <paramref name="path"/> is an empty string (""), contains only white /// space, or contains one or more invalid characters as defined in /// <see cref="Path.GetInvalidPathChars()"/>. /// <para> /// -or- /// </para> /// <paramref name="path"/> contains one or more components that exceed /// the drive-defined maximum length. For example, on Windows-based /// platforms, components must not exceed 255 characters. /// </exception> /// <exception cref="PathTooLongException"> /// <paramref name="path"/> exceeds the system-defined maximum length. /// For example, on Windows-based platforms, paths must not exceed /// 32,000 characters. /// </exception> /// <exception cref="DirectoryNotFoundException"> /// <paramref name="path"/> contains one or more directories that could not be /// found. /// </exception> /// <exception cref="UnauthorizedAccessException"> /// The caller does not have the required access permissions. /// </exception> /// <exception cref="IOException"> /// <paramref name="path"/> is a file. /// <para> /// -or- /// </para> /// <paramref name="path"/> specifies a device that is not ready. /// </exception> /// <remarks> /// Note: Unlike <see cref="Directory.CreateDirectory(System.String)"/>, this method only creates /// the last directory in <paramref name="path"/>. /// </remarks> public static void Create(string path) { string normalizedPath = LongPathCommon.NormalizeLongPath(path); if (!NativeMethods.CreateDirectory(normalizedPath, IntPtr.Zero)) { // To mimic Directory.CreateDirectory, we don't throw if the directory (not a file) already exists int errorCode = Marshal.GetLastWin32Error(); if (errorCode != NativeMethods.ERROR_ALREADY_EXISTS || !LongPathDirectory.Exists(path)) { throw LongPathCommon.GetExceptionFromWin32Error(errorCode); } } }
/// <summary> /// Opens the specified file. /// </summary> /// <param name="path"> /// A <see cref="String"/> containing the path of the file to open. /// </param> /// <param name="access"> /// One of the <see cref="FileAccess"/> value that specifies the operations that can be /// performed on the file. /// </param> /// <param name="mode"> /// One of the <see cref="FileMode"/> values that specifies whether a file is created /// if one does not exist, and determines whether the contents of existing files are /// retained or overwritten. /// </param> /// <param name="share"> /// One of the <see cref="FileShare"/> values specifying the type of access other threads /// have to the file. /// </param> /// <param name="bufferSize"> /// An <see cref="Int32"/> containing the number of bytes to buffer for reads and writes /// to the file, or 0 to specified the default buffer size, 1024. /// </param> /// <param name="options"> /// One or more of the <see cref="FileOptions"/> values that describes how to create or /// overwrite the file. /// </param> /// <returns> /// A <see cref="FileStream"/> that provides access to the file specified in /// <paramref name="path"/>. /// </returns> /// <exception cref="ArgumentNullException"> /// <paramref name="path"/> is <see langword="null"/>. /// </exception> /// <exception cref="ArgumentException"> /// <paramref name="path"/> is an empty string (""), contains only white /// space, or contains one or more invalid characters as defined in /// <see cref="Path.GetInvalidPathChars()"/>. /// <para> /// -or- /// </para> /// <paramref name="path"/> contains one or more components that exceed /// the drive-defined maximum length. For example, on Windows-based /// platforms, components must not exceed 255 characters. /// </exception> /// <exception cref="ArgumentOutOfRangeException"> /// <paramref name="bufferSize"/> is less than 0. /// </exception> /// <exception cref="PathTooLongException"> /// <paramref name="path"/> exceeds the system-defined maximum length. /// For example, on Windows-based platforms, paths must not exceed /// 32,000 characters. /// </exception> /// <exception cref="DirectoryNotFoundException"> /// One or more directories in <paramref name="path"/> could not be found. /// </exception> /// <exception cref="UnauthorizedAccessException"> /// The caller does not have the required access permissions. /// <para> /// -or- /// </para> /// <paramref name="path"/> refers to a file that is read-only and <paramref name="access"/> /// is not <see cref="FileAccess.Read"/>. /// <para> /// -or- /// </para> /// <paramref name="path"/> is a directory. /// </exception> /// <exception cref="IOException"> /// <paramref name="path"/> refers to a file that is in use. /// <para> /// -or- /// </para> /// <paramref name="path"/> specifies a device that is not ready. /// </exception> public static FileStream Open(string path, FileMode mode, FileAccess access, FileShare share, int bufferSize, FileOptions options) { const int DefaultBufferSize = 1024; if (bufferSize == 0) { bufferSize = DefaultBufferSize; } string normalizedPath = LongPathCommon.NormalizeLongPath(path); SafeFileHandle handle = GetFileHandle(normalizedPath, mode, access, share, options); return(new FileStream(handle, access, bufferSize, (options & FileOptions.Asynchronous) == FileOptions.Asynchronous)); }
private static IEnumerable <string> EnumerateFileSystemEntries(string path, string searchPattern, bool includeDirectories, bool includeFiles) { string normalizedSearchPattern = LongPathCommon.NormalizeSearchPattern(searchPattern); string normalizedPath = LongPathCommon.NormalizeLongPath(path); // First check whether the specified path refers to a directory and exists FileAttributes attributes; int errorCode = LongPathCommon.TryGetDirectoryAttributes(normalizedPath, out attributes); if (errorCode != 0) { throw LongPathCommon.GetExceptionFromWin32Error(errorCode); } return(EnumerateFileSystemIterator(normalizedPath, normalizedSearchPattern, includeDirectories, includeFiles)); }