Backporting BuildTasks source

src/DotNetOpenAuth.BuildTasks/AddProjectItems.cs

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+//-----------------------------------------------------------------------
+// <copyright file="AddProjectItems.cs" company="Andrew Arnott">
+//     Copyright (c) Andrew Arnott. All rights reserved.
+// </copyright>
+//-----------------------------------------------------------------------
+
+namespace DotNetOpenAuth.BuildTasks {
+	using System;
+	using System.Collections.Generic;
+	using System.Linq;
+	using System.Text;
+	using Microsoft.Build.BuildEngine;
+	using Microsoft.Build.Framework;
+	using Microsoft.Build.Utilities;
+	using System.Collections;
+
+	public class AddProjectItems : Task {
+		/// <summary>
+		/// Gets or sets the projects to add items to.
+		/// </summary>
+		/// <value>The projects.</value>
+		[Required]
+		public ITaskItem[] Projects { get; set; }
+
+		/// <summary>
+		/// Gets or sets the items to add to each project.
+		/// </summary>
+		/// <value>The items.</value>
+		/// <remarks>
+		/// Use the metadata "ItemType" on each item to specify the item type to use for the new
+		/// project item.  If the metadata is absent, "None" is used as the item type.
+		/// </remarks>
+		[Required]
+		public ITaskItem[] Items { get; set; }
+
+		/// <summary>
+		/// Executes this instance.
+		/// </summary>
+		public override bool Execute() {
+			foreach (var projectTaskItem in this.Projects) {
+				var project = new Project();
+				project.Load(projectTaskItem.ItemSpec);
+
+				foreach (var projectItem in this.Items) {
+					string itemType = projectItem.GetMetadata("ItemType");
+					if (string.IsNullOrEmpty(itemType)) {
+						itemType = "None";
+					}
+					BuildItem newItem = project.AddNewItem(itemType, projectItem.ItemSpec, false);
+					var customMetadata = projectItem.CloneCustomMetadata();
+					foreach (DictionaryEntry entry in customMetadata) {
+						newItem.SetMetadata((string)entry.Key, (string)entry.Value);
+					}
+				}
+
+				project.Save(projectTaskItem.ItemSpec);
+			}
+
+			return !this.Log.HasLoggedErrors;
+		}
+	}
+}

src/DotNetOpenAuth.BuildTasks/ChangeAssemblyReference.cs

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+using System;
+using System.Linq;
+using System.IO;
+using System.Xml;
+
+using Microsoft.Build.Framework;
+using Microsoft.Build.Utilities;
+using Microsoft.Build.BuildEngine;
+
+namespace DotNetOpenAuth.BuildTasks {
+	/// <summary>
+	/// Replaces Reference items HintPaths in a set of projects.
+	/// </summary>
+	public class ChangeAssemblyReference : Task {
+		/// <summary>
+		/// The projects to alter.
+		/// </summary>
+		[Required]
+		public ITaskItem[] Projects { get; set; }
+		/// <summary>
+		/// The project reference to remove.
+		/// </summary>
+		[Required]
+		public string OldReference { get; set; }
+		/// <summary>
+		/// The assembly reference to add.
+		/// </summary>
+		[Required]
+		public string NewReference { get; set; }
+
+		const string msbuildNamespace = "http://schemas.microsoft.com/developer/msbuild/2003";
+		public override bool Execute() {
+			foreach (var project in Projects) {
+				Project doc = new Project();
+				doc.Load(project.ItemSpec);
+
+				var reference = doc.GetEvaluatedItemsByName("Reference").OfType<BuildItem>().
+					Where(item => string.Equals(item.GetMetadata("HintPath"), OldReference, StringComparison.OrdinalIgnoreCase)).Single();
+				reference.SetMetadata("HintPath", NewReference);
+
+				doc.Save(project.ItemSpec);
+			}
+
+			return true;
+		}
+	}
+}

src/DotNetOpenAuth.BuildTasks/ChangeProjectReferenceToAssemblyReference.cs

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+using System;
+using System.Linq;
+using System.IO;
+using System.Xml;
+
+using Microsoft.Build.Framework;
+using Microsoft.Build.Utilities;
+using Microsoft.Build.BuildEngine;
+
+namespace DotNetOpenAuth.BuildTasks {
+	/// <summary>
+	/// Replaces ProjectReference items in a set of projects with Reference items.
+	/// </summary>
+	public class ChangeProjectReferenceToAssemblyReference : Task {
+		/// <summary>
+		/// The projects to alter.
+		/// </summary>
+		[Required]
+		public ITaskItem[] Projects { get; set; }
+		/// <summary>
+		/// The project reference to remove.
+		/// </summary>
+		[Required]
+		public string ProjectReference { get; set; }
+		/// <summary>
+		/// The assembly reference to add.
+		/// </summary>
+		[Required]
+		public string Reference { get; set; }
+
+		const string msbuildNamespace = "http://schemas.microsoft.com/developer/msbuild/2003";
+		public override bool Execute() {
+			foreach (var project in Projects) {
+				Log.LogMessage(MessageImportance.Normal, "Changing P2P references to assembly references in \"{0}\".", project.ItemSpec);
+
+				Project doc = new Project();
+				doc.Load(project.ItemSpec, ProjectLoadSettings.IgnoreMissingImports);
+
+				var projectReference = doc.EvaluatedItems.OfType<BuildItem>().Where(
+					item => item.Name == "ProjectReference" && item.Include == ProjectReference).Single();
+				doc.RemoveItem(projectReference);
+
+				var newReference = doc.AddNewItem("Reference", Path.GetFileNameWithoutExtension(Reference), true);
+				newReference.SetMetadata("HintPath", Reference);
+
+				doc.Save(project.ItemSpec);
+			}
+
+			return true;
+		}
+	}
+}

src/DotNetOpenAuth.BuildTasks/CheckAdminRights.cs

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+//-----------------------------------------------------------------------
+// <copyright file="CheckAdminRights.cs" company="Andrew Arnott">
+//     Copyright (c) Andrew Arnott. All rights reserved.
+// </copyright>
+//-----------------------------------------------------------------------
+
+namespace DotNetOpenAuth.BuildTasks {
+	using System.Security.Principal;
+	using Microsoft.Build.Framework;
+	using Microsoft.Build.Utilities;
+
+	public class CheckAdminRights : Task {
+		/// <summary>
+		/// Gets or sets a value indicating whether this process has elevated permissions.
+		/// </summary>
+		[Output]
+		public bool IsElevated { get; set; }
+
+		/// <summary>
+		/// Executes this instance.
+		/// </summary>
+		public override bool Execute() {
+			WindowsIdentity id = WindowsIdentity.GetCurrent();
+			WindowsPrincipal p = new WindowsPrincipal(id);
+			this.IsElevated = p.IsInRole(WindowsBuiltInRole.Administrator);
+
+			return true;
+		}
+	}
+}

src/DotNetOpenAuth.BuildTasks/CompareFiles.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Microsoft.Build.Utilities;
+using Microsoft.Build.Framework;
+using System.IO;
+
+namespace DotNetOpenAuth.BuildTasks {
+	public class CompareFiles : Task {
+		/// <summary>
+		/// One set of items to compare.
+		/// </summary>
+		[Required]
+		public ITaskItem[] OriginalItems { get; set; }
+
+		/// <summary>
+		/// The other set of items to compare.
+		/// </summary>
+		[Required]
+		public ITaskItem[] NewItems { get; set; }
+
+		/// <summary>
+		/// Gets whether the items lists contain items that are identical going down the list.
+		/// </summary>
+		[Output]
+		public bool AreSame { get; private set; }
+
+		/// <summary>
+		/// Same as <see cref="AreSame"/>, but opposite.
+		/// </summary>
+		[Output]
+		public bool AreChanged { get { return !AreSame; } }
+
+		public override bool Execute() {
+			AreSame = AreFilesIdentical();
+			return true;
+		}
+
+		private bool AreFilesIdentical() {
+			if (OriginalItems.Length != NewItems.Length) {
+				return false;
+			}
+
+			for (int i = 0; i < OriginalItems.Length; i++) {
+				if (!IsContentOfFilesTheSame(OriginalItems[i].ItemSpec, NewItems[i].ItemSpec)) {
+					return false;
+				}
+			}
+
+			return true;
+		}
+
+		private bool IsContentOfFilesTheSame(string file1, string file2) {
+			// If exactly one file is missing, that's different.
+			if (File.Exists(file1) ^ File.Exists(file2)) return false;
+			// If both are missing, that's the same.
+			if (!File.Exists(file1)) return true;
+			// If both are present, we need to do a content comparison.
+			using (FileStream fileStream1 = File.OpenRead(file1)) {
+				using (FileStream fileStream2 = File.OpenRead(file2)) {
+					if (fileStream1.Length != fileStream2.Length) return false;
+					byte[] buffer1 = new byte[4096];
+					byte[] buffer2 = new byte[buffer1.Length];
+					int bytesRead;
+					do {
+						bytesRead = fileStream1.Read(buffer1, 0, buffer1.Length);
+						if (fileStream2.Read(buffer2, 0, buffer2.Length) != bytesRead) {
+							// We should never get here since we compared file lengths, but
+							// this is a sanity check.
+							return false;
+						}
+						for (int i = 0; i < bytesRead; i++) {
+							if (buffer1[i] != buffer2[i]) {
+								return false;
+							}
+						}
+					} while (bytesRead == buffer1.Length);
+				}
+			}
+
+			return true;
+		}
+
+		/// <summary>
+		/// Tests whether a file is up to date with respect to another,
+		/// based on existence, last write time and file size.
+		/// </summary>
+		/// <param name="sourcePath">The source path.</param>
+		/// <param name="destPath">The dest path.</param>
+		/// <returns><c>true</c> if the files are the same; <c>false</c> if the files are different</returns>
+		internal static bool FastFileEqualityCheck(string sourcePath, string destPath) {
+			FileInfo sourceInfo = new FileInfo(sourcePath);
+			FileInfo destInfo = new FileInfo(destPath);
+
+			if (sourceInfo.Exists ^ destInfo.Exists) {
+				// Either the source file or the destination file is missing.
+				return false;
+			}
+
+			if (!sourceInfo.Exists) {
+				// Neither file exists.
+				return true;
+			}
+
+			// We'll say the files are the same if their modification date and length are the same.
+			return
+				sourceInfo.LastWriteTimeUtc == destInfo.LastWriteTimeUtc &&
+				sourceInfo.Length == destInfo.Length;
+		}
+	}
+}