允许函数运行在 parent 范围内？

Question

请原谅标题措辞有点混乱。 . .

我有一个非常简单的脚本，它只是一个 .ps1 文件的点源，但是，由于它在函数内部运行，因此不会加载到parent scope 这是我的终极 objective.

function Reload-ToolBox {
    Param (
        [Parameter(Mandatory=$false)]
        [ValidateSet('TechToolBox',
                     'NetworkToolBox','All')]
        [string[]]$Name = 'TechToolBox'
    )
    Begin 
    {
        $ToolBoxes = @{
            TechToolBox     = "\path\to\my\ps1.ps1"
            NetworkToolBox  = "\path\to\my\ps2.ps1"
        }
        if ($($PSBoundParameters.Values) -contains 'All') {
            $null = $ToolBoxes.Add('All',$($ToolBoxes.Values | Out-String -Stream))
        }

        $DotSource = {
            foreach ($PS1Path in $ToolBoxes.$ToolBox)
            {
                . $PS1Path
            }
        }
    }
    Process 
    {
        foreach ($ToolBox in $Name) 
        {
            
            Switch -Regex ($ToolBoxes.Keys) 
            {
                {$_ -match "^$ToolBox$"} { & $DotSource } 
            }

        }

    }
    End { }
}

问题：

我如何才能将函数中调用的 ps1 加载到 parent 作用域中？

google 没有帮助:(

Answer 1

为了在内部执行点源，你的函数也对函数的调用者，您必须点源 函数调用本身 (. Reload-TooBox ...)
不幸的是，没有办法让这个点源自动，但你至少可以检查是否该函数是通过dot-sourcing 调用的，否则将报告错误并说明。

这是包含此检查的函数的简化版本：

function Reload-ToolBox {
  [CmdletBinding()]
  Param (
    [ValidateSet('TechToolBox', 'NetworkToolBox', 'All')]
    [string[]] $Name = 'TechToolBox'
  )
  Begin {
    # Makes sure that *this* function is also being dot-sourced, as only
    # then does dot-sourcing of scripts from inside it also take effect
    # for the caller.
    if ($MyInvocation.CommandOrigin -ne 'Internal') { # Not dot-sourced?
      throw "You must DOT-SOURCE calls to this function: . $((Get-PSCallStack)[1].Position.Text)"
    }

    $ToolBoxes = @{
      TechToolBox    = "\path\to\my\ps1.ps1"
      NetworkToolBox = "\path\to\my\ps2.ps1"
    }
    $ToolBoxes.All = @($ToolBoxes.Values)

    if ($Name -Contains 'All') { $Name = 'All' }

  }

  Process {

    foreach ($n in $Name)  {
      foreach ($script in $ToolBoxes.$n) {
        Write-Verbose "Dot-sourcing $script..."
        . $script
      }
    }

  }
}

允许函数运行在 parent 范围内？

Allow function to run in parent scope?

powershell

powershell-5.1

允许函数 运行 在 parent 范围内？

Allow function to run in parent scope?

powershell

powershell-5.1

允许函数运行在 parent 范围内？