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//-----------------------------------------------------------------------
// <copyright file="DowngradeProjects.cs" company="Andrew Arnott">
// Copyright (c) Andrew Arnott. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace DotNetOpenAuth.BuildTasks {
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using Microsoft.Build.BuildEngine;
using Microsoft.Build.Framework;
using Microsoft.Build.Utilities;
/// <summary>
/// Downgrades Visual Studio 2010 solutions and projects so that they load in Visual Studio 2008.
/// </summary>
public class DowngradeProjects : Task {
/// <summary>
/// Gets or sets the projects and solutions to downgrade.
/// </summary>
[Required]
public ITaskItem[] Projects { get; set; }
/// <summary>
/// Gets or sets a value indicating whether ASP.NET MVC 2 projects are downgraded to MVC 1.0.
/// </summary>
public bool DowngradeMvc2ToMvc1 { get; set; }
/// <summary>
/// Executes this instance.
/// </summary>
public override bool Execute() {
foreach (ITaskItem taskItem in this.Projects) {
switch (GetClassification(taskItem)) {
case ProjectClassification.VS2010Project:
this.Log.LogMessage(MessageImportance.Low, "Downgrading project \"{0}\".", taskItem.ItemSpec);
Project project = new Project();
project.Load(taskItem.ItemSpec);
project.DefaultToolsVersion = "3.5";
if (this.DowngradeMvc2ToMvc1) {
string projectTypeGuids = project.GetEvaluatedProperty("ProjectTypeGuids");
if (!string.IsNullOrEmpty(projectTypeGuids)) {
projectTypeGuids = projectTypeGuids.Replace("{F85E285D-A4E0-4152-9332-AB1D724D3325}", "{603c0e0b-db56-11dc-be95-000d561079b0}");
project.SetProperty("ProjectTypeGuids", projectTypeGuids);
}
}
// Web projects usually have an import that includes these substrings
foreach (Import import in project.Imports) {
import.ProjectPath = import.ProjectPath
.Replace("$(MSBuildExtensionsPath32)", "$(MSBuildExtensionsPath)")
.Replace("VisualStudio\\v10.0", "VisualStudio\\v9.0");
}
// VS2010 won't let you have a System.Core reference, but VS2008 requires it.
BuildItemGroup references = project.GetEvaluatedItemsByName("Reference");
if (!references.Cast<BuildItem>().Any(item => item.FinalItemSpec.StartsWith("System.Core", StringComparison.OrdinalIgnoreCase))) {
project.AddNewItem("Reference", "System.Core");
}
project.Save(taskItem.ItemSpec);
break;
case ProjectClassification.VS2010Solution:
this.Log.LogMessage(MessageImportance.Low, "Downgrading solution \"{0}\".", taskItem.ItemSpec);
string[] contents = File.ReadAllLines(taskItem.ItemSpec);
if (contents[1] != "Microsoft Visual Studio Solution File, Format Version 11.00" ||
contents[2] != "# Visual Studio 2010") {
this.Log.LogError("Unrecognized solution file header in \"{0}\".", taskItem.ItemSpec);
break;
}
contents[1] = "Microsoft Visual Studio Solution File, Format Version 10.00";
contents[2] = "# Visual Studio 2008";
for (int i = 3; i < contents.Length; i++) {
contents[i] = contents[i].Replace("TargetFrameworkMoniker = \".NETFramework,Version%3Dv", "TargetFramework = \"");
}
File.WriteAllLines(taskItem.ItemSpec, contents);
break;
default:
this.Log.LogWarning("Unrecognized project type for \"{0}\".", taskItem.ItemSpec);
break;
}
}
return !this.Log.HasLoggedErrors;
}
private static ProjectClassification GetClassification(ITaskItem taskItem) {
if (Path.GetExtension(taskItem.ItemSpec).EndsWith("proj", StringComparison.OrdinalIgnoreCase)) {
return ProjectClassification.VS2010Project;
} else if (Path.GetExtension(taskItem.ItemSpec).Equals(".sln", StringComparison.OrdinalIgnoreCase)) {
return ProjectClassification.VS2010Solution;
} else {
return ProjectClassification.Unrecognized;
}
}
private enum ProjectClassification {
VS2010Project,
VS2010Solution,
Unrecognized,
}
}
}
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