在导入模块期间访问 PrivateData [英] Accessing PrivateData during Import-Module

问题描述

我想在加载模块时加载 config.xml 文件的内容并将其存储在 $PrivateData 中.这是我的 PSD1 中的定义行

I want to load the contents of a config.xml file and store it in $PrivateData when my module loads. Here is the definition line in my PSD1

# Private data to pass to the module specified in ModuleToProcess
PrivateData = @{'Variables'=@{};'Config'=$null}

这将创建一个包含两个项目的哈希表.1) Variables 是我用来存储模块私有变量的第二个哈希表.2) Config 将包含 config.xml 文件的值.示例 XML:

This creates a hashtable with two items. 1) Variables is a second hashtable I use to store private variables for my module. 2) Config which will contain the values of a config.xml file. Example XML:

<Config>
    <Foo>Bar</Foo>
</Config>

我可以使用以下行加载 xml:

I can load the xml with the following line:

$PrivateData  = $MyInvocation.MyCommand.Module.PrivateData
$PrivateData.Config = ([xml](Get-Content $PSScriptRoot\Config.xml | Out-String)).Config

我似乎无法在我的 PSM1 文件中访问它.我可以像这样将它包装在 Cmdlet 中:

It does not appear that I can access it in my PSM1 file. I CAN wrap it in a Cmdlet like so:

Function Initialize-TestModule {
    $PrivateData  = $MyInvocation.MyCommand.Module.PrivateData
    $PrivateData.Config #= ([xml](Get-Content $PSScriptRoot\Config.xml | Out-String)).Config    
}

但随后用户将不得不调用 Import-Module，然后再次调用 Initialize-TestModule，这是我试图避免的.

But then the user would have to make a call to Import-Module and then a second call to Initialize-TestModule which is what I am trying to avoid.

如果我将代码放在 PSM1 中，它会在我调用 Import-Module

If I put the code in the PSM1 it generates this error when I call Import-Module

Property 'Config' cannot be found on this object; make sure it exists and is settable.
At C:\scripts\temp\TestModule\TestModule.psm1:7 char:2
+     $PrivateData.Config = ([xml](Get-Content $PSScriptRoot\Config.xml | Out-String) ...
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : PropertyNotFound

如果我尝试像这样加载 PSD1:

If I try to load in the PSD1 like this:

PrivateData = @{'Variables'=@{};'Config'=([xml](Get-Content $PSScriptRoot\Config.xml | Out-String)).Config}

我收到这些错误:

Import-Module : The module manifest 'C:\scripts\temp\TestModule\TestModule.psd1' could not be processed because it is
not a valid Windows PowerShell restricted language file. Please remove the elements that are not permitted by the
restricted language:
At C:\scripts\temp\TestModule\TestModule.psd1:88 char:26
+ PrivateData = @{'Config'=([xml](Get-Content $PSScriptRoot\Config.xml | Out-Strin ...
+                          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Property references are not allowed in restricted language mode or a Data section.
At C:\scripts\temp\TestModule\TestModule.psd1:88 char:27
+ PrivateData = @{'Config'=([xml](Get-Content $PSScriptRoot\Config.xml | Out-Strin ...
+                           ~~~~~
The type xml is not allowed in restricted language mode or a Data section.
At C:\scripts\temp\TestModule\TestModule.psd1:88 char:33
+ PrivateData = @{'Config'=([xml](Get-Content $PSScriptRoot\Config.xml | Out-Strin ...
+                                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The command 'Get-Content' is not allowed in restricted language mode or a Data section.
At C:\scripts\temp\TestModule\TestModule.psd1:88 char:72
+ PrivateData = @{'Config'=([xml](Get-Content $PSScriptRoot\Config.xml | Out-Strin ...
+                                                                        ~~~~~~~~~
The command 'Out-String' is not allowed in restricted language mode or a Data section.
At line:1 char:1
+ Import-Module .\TestModule -force
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ResourceUnavailable: (C:\scripts\temp...TestModule.psd1:String) [Import-Module], Missing
   MemberException
    + FullyQualifiedErrorId : Modules_InvalidManifest,Microsoft.PowerShell.Commands.ImportModuleCommand

在我的 PSM1 中尝试使用 Invoke-Command 和 Start-Job 调用 Initialize-TestModule ，但都失败了.那么有没有人在 Import-Module 期间设法访问 $PrivateData?

In my PSM1 have tried making a call to Initialize-TestModule using Invoke-Command and Start-Job both of which failed. So has anyone managed to access $PrivateData during Import-Module?

推荐答案

您可能需要使用 $MyInvocation 变量访问私有数据.但是，我只是通过从函数中调用它来使其工作.要将其加载到 PSM1 文件中的变量，我从那里调用该函数.我从 https://social.technet.microsoft.com/Forums/windowsserver/en-US/9620af9a-0323-460c-b3e8-68a73715f99d/module-scoped-variable?forum=winserverpowershell.

You will likely need to access the private data using the $MyInvocation variable. However, I've only gotten it to work by calling it from within a function. To load it to a variable in the PSM1 file I call the function from there. I found out about this from https://social.technet.microsoft.com/Forums/windowsserver/en-US/9620af9a-0323-460c-b3e8-68a73715f99d/module-scoped-variable?forum=winserverpowershell.

function Get-PD
{
    [CmdletBinding()]
    Param()
    Begin{}
    Process
    {
        $MyInvocation.MyCommand.Module.PrivateData
    }
    End{}
}

$MyPD = Get-PD

这篇关于在导入模块期间访问 PrivateData的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！