Mike Phares
b99b721458
Removed nugetSource from pipeline Removed more comments Created Static Classes for most DMO / Controller Classes Push ConfigurationManager.AppSettings to controller Align Tests with other Projects
77 lines
3.2 KiB
C#
77 lines
3.2 KiB
C#
using System.IO;
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using ICSharpCode.SharpZipLib.Core;
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using ICSharpCode.SharpZipLib.Zip;
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namespace Fab2ApprovalSystem.Misc;
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public class Zipper {
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/// <summary>
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/// Compresses the files in the nominated folder, and creates a zip file on disk named as outPathname.
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/// </summary>
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public void CreateZip(string outPathname, string folderName) {
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// TODO Try and Catch block
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Directory.CreateDirectory(Path.GetDirectoryName(outPathname));
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FileStream fsOut = File.Create(outPathname);
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ZipOutputStream zipStream = new(fsOut);
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zipStream.SetLevel(3); // 0-9, 9 being the highest level of compression
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// This setting will strip the leading part of the folder path in the entries, to
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// make the entries relative to the starting folder.
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// To include the full path for each entry up to the drive root, assign folderOffset = 0.
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int folderOffset = folderName.Length + (folderName.EndsWith("\\") ? 0 : 1);
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CompressFolder(folderName, zipStream, folderOffset);
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zipStream.IsStreamOwner = true; // Makes the Close also Close the underlying stream
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zipStream.Close();
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}
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/// <summary>
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/// Recurses down the folder structure
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/// </summary>
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private void CompressFolder(string path, ZipOutputStream zipStream, int folderOffset) {
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// TODO Try and Catch block
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string[] files = Directory.GetFiles(path);
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foreach (string filename in files) {
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FileInfo fi = new(filename);
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string entryName = filename.Substring(folderOffset); // Makes the name in zip based on the folder
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entryName = ZipEntry.CleanName(entryName); // Removes drive from name and fixes slash direction
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ZipEntry newEntry = new(entryName);
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newEntry.DateTime = fi.LastWriteTime; // Note the zip format stores 2 second granularity
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// Specifying the AESKeySize triggers AES encryption. Allowable values are 0 (off), 128 or 256.
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// A password on the ZipOutputStream is required if using AES.
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// newEntry.AESKeySize = 256;
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// To permit the zip to be unpacked by built-in extractor in WinXP and Server2003, WinZip 8, Java, and other older code,
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// you need to do one of the following: Specify UseZip64.Off, or set the Size.
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// If the file may be bigger than 4GB, or you do not need WinXP built-in compatibility, you do not need either,
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// but the zip will be in Zip64 format which not all utilities can understand.
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// zipStream.UseZip64 = UseZip64.Off;
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newEntry.Size = fi.Length;
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zipStream.PutNextEntry(newEntry);
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// Zip the file in buffered chunks
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// the "using" will close the stream even if an exception occurs
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byte[] buffer = new byte[4096];
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using (FileStream streamReader = File.OpenRead(filename)) {
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StreamUtils.Copy(streamReader, zipStream, buffer);
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}
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zipStream.CloseEntry();
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}
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string[] folders = Directory.GetDirectories(path);
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foreach (string folder in folders) {
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CompressFolder(folder, zipStream, folderOffset);
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}
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}
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} |