如何使用Team Foundation Server SDK获取最新版本的源代码？

Question

我试图使用SDK以编程方式从TFS中提取最新版本的源代码，但我所做的事情似乎不起作用：

string workspaceName = "MyWorkspace";
string projectPath = "/TestApp";
string workingDirectory = "C:\Projects\Test\TestApp";

VersionControlServer sourceControl; // actually instantiated before this method...

Workspace[] workspaces = sourceControl.QueryWorkspaces(workspaceName, sourceControl.AuthenticatedUser, Workstation.Current.Name);
if (workspaces.Length > 0)
{
    sourceControl.DeleteWorkspace(workspaceName, sourceControl.AuthenticatedUser);
}
Workspace workspace = sourceControl.CreateWorkspace(workspaceName, sourceControl.AuthenticatedUser, "Temporary Workspace");
try
{
    workspace.Map(projectPath, workingDirectory);
    GetRequest request = new GetRequest(new ItemSpec(projectPath, RecursionType.Full), VersionSpec.Latest);
    GetStatus status = workspace.Get(request, GetOptions.GetAll | GetOptions.Overwrite); // this line doesn't do anything - no failures or errors
}
finally
{
    if (workspace != null)
    {
        workspace.Delete();
    }
}

这种方法基本上是创建一个临时工作空间，使用Get()方法获取该项目的所有项，然后删除工作空间。这是正确的做法吗？有任何例子都会很有帮助。

- John Rasch

Answer 1

我最终采用了不同的方法，似乎可以工作，主要是利用 Item.DownloadFile() 方法：

VersionControlServer sourceControl; // actually instantiated...

ItemSet items = sourceControl.GetItems(sourcePath, VersionSpec.Latest, RecursionType.Full);

foreach (Item item in items.Items)
{
    // build relative path
    string relativePath = BuildRelativePath(sourcePath, item.ServerItem);

    switch (item.ItemType)
    {
    case ItemType.Any:
        throw new ArgumentOutOfRangeException("ItemType returned was Any; expected File or Folder.");
    case ItemType.File:
        item.DownloadFile(Path.Combine(targetPath, relativePath));
        break;
    case ItemType.Folder:
        Directory.CreateDirectory(Path.Combine(targetPath, relativePath));
        break;
    }
}

- John Rasch

Answer 2

我完成了代码的编写，并将其实现为一个按钮，作为Web ASP.NET解决方案。

为了使该项目正常工作，需要添加Microsoft.TeamFoundation.Client和Microsoft.TeamFoundation.VersionControl.Client引用，并在代码中添加语句using Microsoft.TeamFoundation.Client;和using Microsoft.TeamFoundation.VersionControl.Client;

    protected void Button1_Click(object sender, EventArgs e)
    {
        string workspaceName = "MyWorkspace";
        string projectPath = @"$/TeamProject"; // the container Project (like a tabel in sql/ or like a folder) containing the projects sources in a collection (like a database in sql/ or also like a folder) from TFS

        string workingDirectory = @"D:\New1";  // local folder where to save projects sources

        TeamFoundationServer tfs = new TeamFoundationServer("http://test-server:8080/tfs/CollectionName", System.Net.CredentialCache.DefaultCredentials);
                                                            // tfs server url including the  Collection Name --  CollectionName as the existing name of the collection from the tfs server 
        tfs.EnsureAuthenticated(); 

        VersionControlServer sourceControl = (VersionControlServer)tfs.GetService(typeof(VersionControlServer));

        Workspace[] workspaces = sourceControl.QueryWorkspaces(workspaceName, sourceControl.AuthenticatedUser, Workstation.Current.Name);
        if (workspaces.Length > 0)
        {
            sourceControl.DeleteWorkspace(workspaceName, sourceControl.AuthenticatedUser);
        }
        Workspace workspace = sourceControl.CreateWorkspace(workspaceName, sourceControl.AuthenticatedUser, "Temporary Workspace");
        try
        {
            workspace.Map(projectPath, workingDirectory);
            GetRequest request = new GetRequest(new ItemSpec(projectPath, RecursionType.Full), VersionSpec.Latest);
            GetStatus status = workspace.Get(request, GetOptions.GetAll | GetOptions.Overwrite); // this line doesn't do anything - no failures or errors
        }
        finally
        {
            if (workspace != null)
            {
                workspace.Delete();
                Label1.Text = "The Projects have been brought into the Folder  " + workingDirectory;
            }
        }
    }

- Stefan

Answer 3

您的方法是有效的。

您的错误在于项目路径。请使用类似以下的内容：

string projectPath = "$/PathToApp/TestApp";

- joerage

Answer 4

我同意 Joerage 的看法，你的服务器路径可能是罪魁祸首。为了更深入地了解发生了什么，你需要在 VersionControlServer 对象上连接一些事件。至少你会想要 Getting、NonFatalError 和 Conflict 这些事件。

完整列表：http://msdn.microsoft.com/en-us/library/microsoft.teamfoundation.versioncontrol.client.versioncontrolserver_events(VS.80).aspx

- Richard Berg

---

很抱歉回复晚了，因为我遇到了其他问题，但更改路径似乎也没有起作用。我尝试连接所有事件，但它们都没有触发。最终我采用了完全不同的策略（item.DownloadFile），这种方式似乎很好用 - 也不需要工作区。 - John Rasch

@JohnRasch，你能分享一下代码片段吗？我也遇到了同样的问题，卡住了！！:( - UserRA

Answer 5

我有一个类似的情况，需要将 TFS 中“a”文件夹的内容下载到现有工作区，而不创建新的工作区。在得到上面答案的帮助后，我已经成功地组合了一些代码可以正常运行。然而，这里有一个限制。它仅适用于具有文件的“a”文件夹的内容，而不是其中包含的另一个文件夹 - 我尚未尝试过。也许需要进行一些小的更新。分享代码，以防有人正在搜索这个。我真的很喜欢这种方法不涉及工作区[-创建和删除]的事实，因为那是不期望的。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Configuration;
using Microsoft.TeamFoundation.VersionControl.Client;
using Microsoft.TeamFoundation.Client;
using System.IO;

namespace DownloadFolder
{
    class Program
    {
        static void Main(string[] args)
        {
            string teamProjectCollectionUrl = "http://<YourTFSUrl>:8080/tfs/DefaultCollection";  // Get the version control server
            TfsTeamProjectCollection teamProjectCollection = TfsTeamProjectCollectionFactory.GetTeamProjectCollection(new Uri(teamProjectCollectionUrl));
            VersionControlServer vcs = teamProjectCollection.GetService<VersionControlServer>();
            String Sourcepath = args[0]; // The folder path in TFS - "$/<TeamProject>/<FirstLevelFolder>/<SecondLevelFolder>"
            String DestinationPath = args[1]; //The folder in local machine - "C:\MyTempFolder"
            ItemSet items = vcs.GetItems(Sourcepath, VersionSpec.Latest, RecursionType.Full);
            String FolderName = null;
            foreach (Item item in items.Items)
            {
                String ItemName = Path.GetFileName(item.ServerItem);
                switch (item.ItemType)
                {
                    case ItemType.File:                        
                        item.DownloadFile(Path.Combine(DestinationPath, FolderName, ItemName));
                        break;
                    case ItemType.Folder:
                        FolderName = Path.GetFileName(item.ServerItem);
                        Directory.CreateDirectory(Path.Combine(DestinationPath, ItemName));
                        break;
                }
            }
        }
    }
}

在从命令提示符中运行时，请将所有支持的dll与exe一起复制。

cmd>> DownloadFolder.exe "$/<TeamProject>/<FirstLevelFolder>/<SecondLevelFolder>" "C:\MyTempFolder"

- Sourav Kundu