dotnet-installer/src/core-sdk-tasks/ExtractArchiveToDirectory.cs
2018-10-29 11:37:13 -07:00

123 lines
3.7 KiB
C#

// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using Microsoft.Build.Framework;
using Microsoft.Build.Utilities;
using System;
using System.IO;
using System.IO.Compression;
namespace Microsoft.DotNet.Build.Tasks
{
/// <summary>
/// Extracts a .zip or .tar.gz file to a directory.
/// </summary>
public sealed class ExtractArchiveToDirectory : ToolTask
{
/// <summary>
/// The path to the archive to extract.
/// </summary>
[Required]
public string SourceArchive { get; set; }
/// <summary>
/// The path of the directory to which the archive should be extracted.
/// </summary>
[Required]
public string DestinationDirectory { get; set; }
/// <summary>
/// Indicates if the destination directory should be cleaned if it already exists.
/// </summary>
public bool CleanDestination { get; set; }
protected override bool ValidateParameters()
{
base.ValidateParameters();
var retVal = true;
if (Directory.Exists(DestinationDirectory))
{
if (CleanDestination == true)
{
Log.LogMessage(MessageImportance.Low, "'{0}' already exists, trying to delete before unzipping...", DestinationDirectory);
Directory.Delete(DestinationDirectory, recursive: true);
}
}
if (!File.Exists(SourceArchive))
{
Log.LogError($"SourceArchive '{SourceArchive} does not exist.");
retVal = false;
}
if (retVal)
{
Log.LogMessage($"Creating Directory {DestinationDirectory}");
Directory.CreateDirectory(DestinationDirectory);
}
return retVal;
}
public override bool Execute()
{
bool retVal = true;
// Inherits from ToolTask in order to shell out to tar.
// If the file is a .zip, then don't call the base Execute method, just run as a normal task
if (Path.GetExtension(SourceArchive).Equals(".zip", StringComparison.OrdinalIgnoreCase))
{
if (ValidateParameters())
{
#if NETFRAMEWORK
// .NET Framework doesn't have overload to overwrite files
ZipFile.ExtractToDirectory(SourceArchive, DestinationDirectory);
#else
ZipFile.ExtractToDirectory(SourceArchive, DestinationDirectory, overwriteFiles: true);
#endif
}
else
{
retVal = false;
}
}
else
{
retVal = base.Execute();
}
if (!retVal)
{
Log.LogMessage($"Deleting Directory {DestinationDirectory}");
Directory.Delete(DestinationDirectory);
}
return retVal;
}
protected override string ToolName
{
get { return "tar"; }
}
protected override MessageImportance StandardOutputLoggingImportance
{
get { return MessageImportance.High; } // or else the output doesn't get logged by default
}
protected override string GenerateFullPathToTool()
{
return "tar";
}
protected override string GenerateCommandLineCommands()
{
return $"xf {SourceArchive} -C {DestinationDirectory}";
}
}
}