TFS扩展开发中遇到的坑

本码农最近开发一个VS扩展，其中有些功能涉及到文件的签出。我们公司用的是TFS，遇到了一些奇特的现象，将解决过程记录如下。

一、明明在线的连接却Offline属性等于True

 public static Workspace GetWorkspace(string slnDir)

        {

            var projectCollections = new List<RegisteredProjectCollection>((RegisteredTfsConnections.GetProjectCollections()));

            var onlineCollections = projectCollections.Where(c => !c.Offline).ToList();

            // fail if there are no registered collections that are currently on-line

            if (!onlineCollections.Any())

            {

                return null;

            }

            Workspace workspace = null;

            // find a project collection with at least one team project

            foreach (var registeredProjectCollection in onlineCollections)

            {

                var projectCollection = TfsTeamProjectCollectionFactory.GetTeamProjectCollection(registeredProjectCollection);

                projectCollection.EnsureAuthenticated();

                var versionControl = (VersionControlServer)projectCollection.GetService(typeof(VersionControlServer));

                var teamProjects = new List<TeamProject>(versionControl.GetAllTeamProjects(false));

                // if there are no team projects in this collection, skip it

                if (teamProjects.Count < ) continue;

                var dir = new DirectoryInfo(slnDir);

                while (workspace == null)

                {

                    workspace = versionControl.TryGetWorkspace(dir.FullName);

                    if (dir.Parent == null)

                        break;

                    dir = dir.Parent;

                }

                if (workspace != null && workspace.HasUsePermission)

                    break;

            }

            return workspace;

        }

　现象就是上面这段代码中

var onlineCollections = projectCollections.Where(c => !c.Offline).ToList();

一句找不到想要的在线的TFS Server

首先尝试了删除Local AppData中(C:\Users\*\AppData\Local\Microsoft\Team Foundation)的Cache，不起作用。

然后找到注册表

HKEY_USERS\S-1-5-21-2532103873-3336248781-2863026242-1503\Software\Microsoft\VisualStudio\11.0\TeamFoundation\Instances\tfs.yintai.org\Collections\PlatformCollection
将此节点下Offline改为0

可以了。

原因不明，可能跟连接了多个TFS有关。

二、TryGetWorkspace方法找不到对应的Workspace

然后又遇到

workspace = versionControl.TryGetWorkspace(dir.FullName);

总是返回null

后改为使用QueryWorkspaces方法遍历所有workspace解决

将这段

 var dir = new DirectoryInfo(slnDir);

                while (workspace == null)

                {

                    workspace = versionControl.TryGetWorkspace(dir.FullName);

                    if (dir.Parent == null)

                        break;

                    dir = dir.Parent;

                }

替换为

  try

                {

                    Workspace[] workspaces = versionControl.QueryWorkspaces(null, Environment.UserName,

                        Environment.MachineName);

                    foreach (var ws in workspaces)

                    {

                        foreach (var folder in ws.Folders)

                        {

                            if (slnDir.StartsWith(folder.LocalItem))

                            {

                                workspace = ws;

                                break;

                            }

                        }

                        if (workspace != null && workspace.HasUsePermission)

                            break;

                    }

                }

                catch

                {

                    continue;

                }

巴特西

TFS扩展开发中遇到的坑

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