Temporarily copy the dotnet/buildtools tasks we use into dotnet/cli to allow us to move up to a newer MSBuild.

build_projects/dotnet-cli-build/ZipFileExtractToDirectory.cs

@@ -0,0 +1,65 @@
+// 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
+{
+    public sealed class ZipFileExtractToDirectory : Task
+    {
+        /// <summary>
+        /// The path to the directory to be archived.
+        /// </summary>
+        [Required]
+        public string SourceArchive { get; set; }
+
+        /// <summary>
+        /// The path of the archive to be created.
+        /// </summary>
+        [Required]
+        public string DestinationDirectory { get; set; }
+
+        /// <summary>
+        /// Indicates if the destination archive should be overwritten if it already exists.
+        /// </summary>
+        public bool OverwriteDestination { get; set; }
+
+        public override bool Execute()
+        {
+            try
+            {
+                if (Directory.Exists(DestinationDirectory))
+                {
+                    if (OverwriteDestination == true)
+                    {
+                        Log.LogMessage(MessageImportance.Low, "'{0}' already exists, trying to delete before unzipping...", DestinationDirectory);
+                        Directory.Delete(DestinationDirectory, recursive: true);
+                    }
+                    else
+                    {
+                        Log.LogWarning("'{0}' already exists. Did you forget to set '{1}' to true?", DestinationDirectory, nameof(OverwriteDestination));
+                    }
+                }
+
+                Log.LogMessage(MessageImportance.High, "Decompressing '{0}' into '{1}'...", SourceArchive, DestinationDirectory);
+                if (!Directory.Exists(Path.GetDirectoryName(DestinationDirectory)))
+                    Directory.CreateDirectory(Path.GetDirectoryName(DestinationDirectory));
+
+                ZipFile.ExtractToDirectory(SourceArchive, DestinationDirectory);
+            }
+            catch (Exception e)
+            {
+                // We have 2 log calls because we want a nice error message but we also want to capture the callstack in the log.
+                Log.LogError("An exception has occured while trying to decompress '{0}' into '{1}'.", SourceArchive, DestinationDirectory);
+                Log.LogMessage(MessageImportance.Low, e.ToString());
+                return false;
+            }
+            return true;
+        }
+    }
+}