如何基于选择动态在Powershell中加载变量

Question

I am creating a powershell script that is going to be run on different environments. Therefore I am creating seperate variable files for each environment so that I can have one main script, and then as many environment scripts as required.

However I have been unable to get powershell to dynamically load my specific environment file

For testing purposes I have two files

env-CI.ps1 env-QA.ps1

both files only contain one variable [string] $envName = "CI" and [string] $envName = "QA" respectively.

I am using a promptForChoice to specify what environment I with to work with, but I just cannot get the scripts to load.

I have read about dot but this does not appear to load the files

This is my script file

function whatEnvironment {
    [string] $answer = ""
    [string] $title = ""
    [string] $message = "What environment are you updating"

    $ci = New-Object System.Management.Automation.Host.ChoiceDescription "&CI", `
        "Update the CI environment."

    $qa = New-Object System.Management.Automation.Host.ChoiceDescription "&QA", `
        "Update the QA Environment."

    $uat = New-Object System.Management.Automation.Host.ChoiceDescription "&UAT", `
        "Update the UAT environment."

    $production = New-Object System.Management.Automation.Host.ChoiceDescription "&Production", `
        "Update the Production Environment."
    $options = [System.Management.Automation.Host.ChoiceDescription[]]($ci, $qa, $uat, $production)

    :OuterLoop do 
        { 
            $answer = $host.ui.PromptForChoice($title, $message, $options, -1) 

            switch ($answer)
                {
                    0 {
                        . .\environment-CI.ps1  
                        break OuterLoop
                        }
                    1 {
                        . .\environment-QA.ps1  
                        break OuterLoop
                        }
                    2 {break OuterLoop}
                    3 {break OuterLoop}
                }
        }
    while ($y -ne 100)  
    return $answer
}

cls
$environment = whatEnvironment
write-host $environment
write-host $envName

No error is thrown, but the file containing the environment variables is not loaded.

Answer 1

Do one thing at a time. No weird breaking out of loops and stuff. Prompt for the user's decision first, then load the environment file after the user has made a valid choice.

function whatEnvironment {
    [string] $answer = ""
    [string] $title = ""
    [string] $message = "What environment are you updating"

    $ci = New-Object Management.Automation.Host.ChoiceDescription "&CI", "Update the CI environment."
    $qa = New-Object Management.Automation.Host.ChoiceDescription "&QA", "Update the QA Environment."
    $uat = New-Object Management.Automation.Host.ChoiceDescription "&UAT", "Update the UAT environment."
    $production = New-Object Management.Automation.Host.ChoiceDescription "&Production", "Update the Production Environment."

    $options = [Management.Automation.Host.ChoiceDescription[]]($ci, $qa, $uat, $production)

    do {
        $answer = $Host.UI.PromptForChoice($title, $message, $options, -1)
    } until ($answer -in 1..4)

    switch ($answer) {
        0 { ". .\environment-CI.ps1" }
        1 { ". .\environment-QA.ps1" }
    }

    return $answer
}

$environment = whatEnvironment
Write-Host $environment