// Returns path of decompressed file.
// "path" - Path of compressed file or folder.
// Typically : Path.ChangeExtension(dirPath, ".gz").
// dirPath - source filepath.
public static string DecompressGZip(string path)
{
string directoryOfPath = Path.GetDirectoryName(path);
string fileOrFolderNameFromPath = Path.GetFileNameWithoutExtension(path);
string newFileOrFolderNameFromPath;
string destinationPath = String.Empty;
try
{
newFileOrFolderNameFromPath = fileOrFolderNameFromPath + ".txt"; // А что если я заранеее не знаю какого расширения
// "destinationPath" - path to the decompressed file or directory.
destinationPath = Path.Combine(directoryOfPath, newFileOrFolderNameFromPath);
if (File.Exists(destinationPath) || Directory.Exists(destinationPath))
{
throw new Exception($"Such file or directory {destinationPath} is already exists !");
}
else
{
// Проверяем существует ли файл котрый мы хотим распаковать. Прим : "fileOrFolder.gz".
if (File.Exists(path))
{
// Логика распаковки файла\директории ....................
// поток для чтения из сжатого файла
using (FileStream sourceStream = new FileStream(path, FileMode.OpenOrCreate))
{
// поток для записи восстановленного файла
using (FileStream targetStream = File.Create(destinationPath))
{
// поток разархивации
using (GZipStream decompressionStream = new GZipStream(sourceStream, CompressionMode.Decompress))
{
decompressionStream.CopyTo(targetStream);
//Console.WriteLine("Восстановлен файл: {0}", newFileOrFolderNameFromPath);
}
}
}
}
else
{
throw new Exception($"Such Directory or file {path} doesn't exists ! ");
}
}
UserInteraction.SuccessMsg();
//WriteLine($"Compressed file : {destinationPath} !");
}
catch (Exception ex)
{
UserInteraction.ErrorMsg();
UserInteraction.PrintExceptionInfo(ex);
}
//WriteLine();
return(destinationPath);
}
// Returns new file name.
// Path to the file or folder we want to compress.
// Compresses to ".gz" format.
public static string Compress(string path)
{
string directoryOfPath = GetDirectoryFromFileOrFolderPath(path);
string fileOrFolderNameFromPath = GetFileOrFolderNameFromPath(path);
string newFileOrFolderNameFromPath;
string destinationPath = string.Empty;
try
{
newFileOrFolderNameFromPath = Path.ChangeExtension(fileOrFolderNameFromPath, ".gz");
destinationPath = Path.Combine(directoryOfPath, newFileOrFolderNameFromPath);
// Process will depend on is it file or directory.
if (File.Exists(path))
{
// поток для чтения исходного файла
using (FileStream sourceStream = new FileStream(path, FileMode.Open))
{
// поток для записи сжатого файла
using (FileStream targetStream = File.Create(destinationPath))
{
// поток архивации
using (GZipStream compressionStream = new GZipStream(targetStream, CompressionMode.Compress))
{
// копируем байты из одного потока в другой
sourceStream.CopyTo(compressionStream);
WriteLine("Сжатие файла {0} завершено. Исходный размер: {1} сжатый размер: {2}.",
path, sourceStream.Length.ToString(), targetStream.Length.ToString());
}
}
}
}
else if (Directory.Exists(path))
{
ZipFile.CreateFromDirectory(path, destinationPath);
}
else
{
throw new Exception($"Such Directory or file {path} doesn't exists ! ");
}
UserInteraction.SuccessMsg();
WriteLine($"Compressed file : {destinationPath} !");
}
catch (Exception ex)
{
UserInteraction.ErrorMsg();
UserInteraction.PrintExceptionInfo(ex);
}
WriteLine();
return(destinationPath);
}
// Write text to the end of file (doesn't rewrite it).
public static void WriteToFile(string fileName)
{
FileInfo file;
try
{
file = new FileInfo(fileName);
}
catch (Exception ex)
{
UserInteraction.PrintExceptionInfo(ex);
WriteLine();
return;
}
if (!file.Exists)
{
UserInteraction.ErrorMsg();
WriteLine($"File {fileName} doesn't exists !");
}
else if (file.Extension != ".txt")
{
UserInteraction.ErrorMsg();
WriteLine($"File {fileName} should be an .txt file !");
}
else
{
Write("Input text (for writing to file) : ");
var userText = ReadLine();
try
{
using (StreamWriter sw = new StreamWriter(fileName, true, System.Text.Encoding.Default))
{
sw.WriteLineAsync(userText);
}
UserInteraction.SuccessMsg();
WriteLine("Recording completed !");
}
catch (Exception ex)
{
UserInteraction.PrintExceptionInfo(ex);
}
}
WriteLine();
}
public static void ReadTextFromFile(string filePath)
{
string stringFromFile = string.Empty;
FileInfo file;
try
{
file = new FileInfo(filePath);
}
catch (Exception ex)
{
UserInteraction.ErrorMsg();
UserInteraction.PrintExceptionInfo(ex);
WriteLine();
return;
}
if (!file.Exists)
{
UserInteraction.ErrorMsg();
UserInteraction.FileNotExistsMsg(file.FullName);
}
else
{
try
{
using (StreamReader sr = new StreamReader(file.FullName))
{
stringFromFile = sr.ReadToEnd();
}
UserInteraction.SuccessMsg();
WriteLine("Text from file : ");
WriteLine(stringFromFile);
}
catch (Exception ex)
{
UserInteraction.ErrorMsg();
UserInteraction.PrintExceptionInfo(ex);
}
}
WriteLine();
}
// Path of compressed file or folder.
// Typically : Path.ChangeExtension(dirPath, ".zip").
// dirPath - source filepath.
public static void DecompressZip(string path)
{
string directoryOfPath = GetDirectoryFromFileOrFolderPath(path);
string fileOrFolderNameFromPath = GetFileOrFolderNameFromPath(path);
string newFileOrFolderNameFromPath;
string destinationPath;
try
{
newFileOrFolderNameFromPath = Path.ChangeExtension(fileOrFolderNameFromPath, null);
destinationPath = Path.Combine(directoryOfPath, newFileOrFolderNameFromPath);
if (Directory.Exists(destinationPath) || File.Exists(destinationPath))
{
throw new Exception($"Such file or directory {destinationPath} is already exists !");
}
else
{
if (File.Exists(path))
{
Directory.CreateDirectory(destinationPath);
ZipFile.ExtractToDirectory(path, destinationPath);
}
else
{
throw new Exception($"Such Directory or file {path} doesn't exists ! ");
}
}
UserInteraction.SuccessMsg();
WriteLine($"Decompressed file : {destinationPath} !");
}
catch (Exception ex)
{
UserInteraction.ErrorMsg();
UserInteraction.PrintExceptionInfo(ex);
}
WriteLine();
}
