89 lines
2.9 KiB
C#
89 lines
2.9 KiB
C#
#region Copyright & License Information
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/*
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* Copyright (c) The OpenRA Developers and Contributors
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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, either version 3 of
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* the License, or (at your option) any later version. For more
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* information, 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 OpenRA.Mods.Common.FileFormats;
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using OpenRA.Mods.Common.Widgets.Logic;
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using FS = OpenRA.FileSystem.FileSystem;
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namespace OpenRA.Mods.Common.Installer
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{
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public class ExtractBlastSourceAction : ISourceAction
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{
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public void RunActionOnSource(MiniYaml actionYaml, string path, ModData modData, List<string> extracted, Action<string> updateMessage)
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{
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// Yaml path may be specified relative to a named directory (e.g. ^SupportDir) or the detected source path
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var sourcePath = actionYaml.Value.StartsWith('^')
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? Platform.ResolvePath(actionYaml.Value)
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: FS.ResolveCaseInsensitivePath(Path.Combine(path, actionYaml.Value));
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using (var source = File.OpenRead(sourcePath))
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{
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source.Position = 12;
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var numFiles = source.ReadUInt16();
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source.Position = 51;
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source.Position = source.ReadUInt32();
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var entries = new Dictionary<string, (uint Length, uint Offset)>();
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for (var i = 0; i < numFiles; i++)
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{
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source.Position += 7;
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var entry = (source.ReadUInt32(), source.ReadUInt32());
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source.Position += 14;
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var key = source.ReadASCII(source.ReadByte());
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source.Position += 13;
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// This does not apply on game relevant data.
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entries.TryAdd(key, entry);
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}
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foreach (var node in actionYaml.Nodes)
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{
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var targetPath = Platform.ResolvePath(node.Key);
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if (File.Exists(targetPath))
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{
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Log.Write("install", "Skipping installed file " + targetPath);
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continue;
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}
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var (length, offset) = entries[node.Value.Value];
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source.Position = offset;
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extracted.Add(targetPath);
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Directory.CreateDirectory(Path.GetDirectoryName(targetPath));
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var displayFilename = Path.GetFileName(Path.GetFileName(targetPath));
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Action<long> onProgress = null;
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if (length < InstallFromSourceLogic.ShowPercentageThreshold)
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updateMessage(FluentProvider.GetString(
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InstallFromSourceLogic.Extracing,
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FluentBundle.Arguments("filename", displayFilename)));
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else
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onProgress = b => updateMessage(FluentProvider.GetString(
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InstallFromSourceLogic.ExtractingProgress,
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FluentBundle.Arguments("filename", displayFilename, "progress", 100 * b / length)));
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using (var target = File.OpenWrite(targetPath))
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{
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Log.Write("install", $"Extracting {sourcePath} -> {targetPath}");
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Blast.Decompress(source, target, (read, _) => onProgress?.Invoke(read));
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}
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}
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}
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}
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}
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}
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