125 lines
3.4 KiB
C#
125 lines
3.4 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2011 The OpenRA Developers (see AUTHORS)
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation. For more information,
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* see COPYING.
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*/
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#endregion
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using System;
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using System.Collections.Generic;
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using System.IO;
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using ICSharpCode.SharpZipLib;
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using ICSharpCode.SharpZipLib.Zip;
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namespace OpenRA.FileFormats
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{
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public static class InstallUtils
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{
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static IEnumerable<ZipEntry> GetEntries(this ZipInputStream z)
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{
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for (; ; )
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{
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var e = z.GetNextEntry();
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if (e != null) yield return e; else break;
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}
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}
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// TODO: The package should be mounted into its own context to avoid name collisions with installed files
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public static bool ExtractFromPackage(string srcPath, string package, string[] files, string destPath, Action<string> onProgress, Action<string> onError)
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{
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if (!Directory.Exists(destPath))
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Directory.CreateDirectory(destPath);
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if (!Directory.Exists(srcPath)) { onError("Cannot find "+package); return false; }
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FileSystem.Mount(srcPath);
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if (!FileSystem.Exists(package)) { onError("Cannot find "+package); return false; }
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FileSystem.Mount(package);
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foreach (string s in files)
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{
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var destFile = Path.Combine(destPath, s);
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using (var sourceStream = FileSystem.Open(s))
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using (var destStream = File.Create(destFile))
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{
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onProgress("Extracting "+s);
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destStream.Write(sourceStream.ReadAllBytes());
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}
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}
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onProgress("Extraction complete");
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return true;
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}
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public static bool CopyFiles(string srcPath, string[] files, string destPath, Action<string> onProgress, Action<string> onError)
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{
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foreach (var file in files)
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{
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var fromPath = Path.Combine(srcPath, file);
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if (!File.Exists(fromPath))
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{
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onError("Cannot find "+file);
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return false;
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}
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var destFile = Path.GetFileName(file).ToLowerInvariant();
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onProgress("Extracting "+destFile);
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File.Copy(fromPath, Path.Combine(destPath, destFile), true);
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}
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onProgress("Extraction complete");
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return true;
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}
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public static bool ExtractZip(string zipFile, string dest, Action<string> onProgress, Action<string> onError)
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{
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if (!File.Exists(zipFile))
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{
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onError("Invalid path: "+zipFile);
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return false;
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}
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List<string> extracted = new List<string>();
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try
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{
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var z = new ZipInputStream(File.OpenRead(zipFile));
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z.ExtractZip(dest, extracted, s => onProgress("Extracting "+s));
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onProgress("Extraction complete");
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}
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catch (SharpZipBaseException)
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{
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foreach(var f in extracted)
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File.Delete(f);
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onError("Invalid archive");
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return false;
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}
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return true;
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}
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// TODO: this belongs in FileSystem/ZipFile
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static void ExtractZip(this ZipInputStream z, string destPath, List<string> extracted, Action<string> onProgress)
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{
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foreach (var entry in z.GetEntries())
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{
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if (!entry.IsFile) continue;
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onProgress(entry.Name);
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Directory.CreateDirectory(Path.Combine(destPath, Path.GetDirectoryName(entry.Name)));
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var path = Path.Combine(destPath, entry.Name);
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extracted.Add(path);
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using (var f = File.Create(path))
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{
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int bufSize = 2048;
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byte[] buf = new byte[bufSize];
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while ((bufSize = z.Read(buf, 0, buf.Length)) > 0)
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f.Write(buf, 0, bufSize);
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}
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}
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z.Close();
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}
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}
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} |