使用Powershell从tfs文件夹获取最新的检入文件

Question

嗨，我实际上是Powershell新手。 我正在尝试进行ETL数据库部署，因此在给定的时间后，我需要tfs文件夹中的所有文件。 我建立了与tfs的连接，但是我可以下载文件，但是如果文件有两个签入，则我使用先前签入而不是最新签入来获取文件

我的代码：

$TfsUrl = "http://tfs2013-xxx02.ad.xxx.com:8080/tfs/abcd-xxx243"

    # Load TFS assemblies for connecting to the TFS server 
    Add-Type -Path "E:\Microsoft Visual Studio 14.0\Common7\IDE\TestAgent\Microsoft.TeamFoundation.Client.dll"
    Add-Type -Path "E:\Microsoft Visual Studio 14.0\Common7\IDE\TestAgent\Microsoft.TeamFoundation.Common.dll"
    Add-Type -Path "E:\Microsoft Visual Studio 14.0\Common7\IDE\Extensions\4qvjm2or.ipa\Microsoft.TeamFoundation.Lab.Client.dll"
    Add-Type -Path "E:\Microsoft Visual Studio 14.0\Common7\IDE\Extensions\4qvjm2or.ipa\Microsoft.TeamFoundation.Lab.Common.dll"
    Add-Type -Path "E:\Microsoft Visual Studio 14.0\Common7\IDE\Extensions\4qvjm2or.ipa\Microsoft.TeamFoundation.VersionControl.Client.dll"

    #Get TFS Instance   
    $Tfs = [Microsoft.TeamFoundation.Client.TfsTeamProjectCollectionFactory]::GetTeamProjectCollection($TfsUrl)

    # use the account credentials of the process running the script
    try 
    {
        $Tfs.EnsureAuthenticated()
        Write-Output "TFS Connection is successful"
    }
    catch 
    {
        Write-Output "Error trying to connect to tfs server.  Check your tfs permissions and path: $_ " 
        Exit(1)
    }

    #Write-Message $LogFileName "THIS IS INSIDE Connect-ToTFS"
    #Write-Message $LogFileName "TFS IS $Tfs"

$DeploymentFilePath= "$/xxxx/FutureReleases/Database/ReportingETLs"

$TFSInstance    = $Tfs.GetService([Microsoft.TeamFoundation.VersionControl.Client.VersionControlServer])
$LatestVersion  = [Microsoft.TeamFoundation.VersionControl.Client.VersionSpec]::Latest
$RecursionType  = [Microsoft.TeamFoundation.VersionControl.Client.RecursionType]::Full  


$DateFrom   = "D2016-10-08T01:59"

# Get the From and To date-time in version format to be passed to TFS API
$VersionFrom    = $null 
$VersionFrom    = [Microsoft.TeamFoundation.VersionControl.Client.VersionSpec]::ParseSingleSpec($DateFrom, "")      

$FileHistory    = @($TFSInstance.QueryHistory($DeploymentFilePath,$LatestVersion,0,$RecursionType,$null,$null,$null,[int32]::MaxValue, $true ,$true, $true))

#Write-Output "Filehistory is: $FileHistory"

#$ChangeSetCount = $FileHistory.Count
#Write-Output "ChangeSetCount is: $ChangeSetCount"


$TFSGetFullPath = "E:\temp\"
$chArray = @()
$checkin =""

foreach ($history in $FileHistory)
{
    foreach ($change in $history.Changes)
    {
        foreach ($item in $change.item)
        {

            if($item.CheckinDate -gt $VersionFrom.Date)
            {
                $chArray += $history.ChangesetId 


            }
        }
    }
}

Write-Output "ChangesetArray is: $chArray"
foreach ($ch in $chArray) 
{
    foreach ($lastdeployedHistory in $FileHistory)       
    {      
        if($lastdeployedHistory.ChangesetId -eq  $ch)
        {
            foreach ($workitem in $lastdeployedHistory.Changes)
            { 
                $workitem.Item.DownloadFile([IO.Path]::GetFullPath($TFSGetFullPath) + $workitem.Item.ServerItem.Split('/')[$workitem.Item.ServerItem.Split('/').Length - 1]);
            }
        }                                                                                                                
    }
}

Answer 1

这是由于$ chArray中的对象顺序引起的。 $ chArray中的变更集按从新到旧的顺序排列。 当您下载文件时，它将先下载新文件，然后再下载旧文件。

例如，一个文件有两个变更集：111和112，脚本中的代码为Write-Output "ChangesetArray is: $chArray" ，您应该看到如下输出： ChangesetArray is: 112 111 。 下载文件时，首先下载112版本的文件，然后下载111版本的文件，该版本将覆盖最新版本。

您可以在$ chArray中对数组进行排序以解决此问题：

Write-Output "ChangesetArray is: $chArray"

$sortcsarray = $chArray | Sort-Object

Write-Output "ChangesetArray is: $sortcsarray"

foreach ($ch in $sortcsarray)