使用Powershell從tfs文件夾獲取最新的檢入文件

Question

嗨，我實際上是Powershell新手。 我正在嘗試進行ETL數據庫部署，因此在給定的時間后，我需要tfs文件夾中的所有文件。 我建立了與tfs的連接，但是我可以下載文件，但是如果文件有兩個簽入，則我使用先前簽入而不是最新簽入來獲取文件

我的代碼：

$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

這是由於$ chArray中的對象順序引起的。 $ chArray中的變更集按從新到舊的順序排列。 當您下載文件時，它將先下載新文件，然后再下載舊文件。

例如，一個文件有兩個變更集：111和112，腳本中的代碼為Write-Output "ChangesetArray is: $chArray" ，您應該看到如下輸出： ChangesetArray is: 112 111 。 下載文件時，首先下載112版本的文件，然后下載111版本的文件，該版本將覆蓋最新版本。

您可以在$ chArray中對數組進行排序以解決此問題：

Write-Output "ChangesetArray is: $chArray"

$sortcsarray = $chArray | Sort-Object

Write-Output "ChangesetArray is: $sortcsarray"

foreach ($ch in $sortcsarray)