How to update global variable in another file in PowerShell?

Question

I have created one PowerShell file called Config.ps1 which contains variables which are used by all other PowerShell scripts. As per below sample, it contains commented section (for user's understanding) and real variable which are updated at run time.

<#$Global:DeploymentType = 'Full/Partial'#>

$Global:DeploymentType = ''

I am calling that config ps file in another script file. Like below

$ConfigFile = Split-Path -Path $PSCommandPath
$ConfigFile = $ConfigFile + "\Config.ps1"
."$ConfigFile"

$Config = Get-Content $ConfigFile

Do some tasks: 1.2.3 then update variables based on those task

$Config = $Config -creplace "DeploymentType = '[^']*'","DeploymentType = 'Full'"
$Config | Set-Content $ConfigFile -Force

Issue is that, both commented part and variable in config file is getting updated. I just want to update variable value and not the commented part. Any way to achieve that?

Thanks Ansgar, there are multiple values in commented section like this: <#---------Use below sample to update config settings-------------------------------------- $Global:DeploymentType = 'S' $Global:VersionNumber = '18.1.0.1206.115' $Global:ServerIP = '10.130.60.55' ------------------------------------------------------------------------------------------#> — Kushal Solanki
– Kushal Solanki, Commented Dec 11, 2018 at 12:57

montonero · Accepted Answer · 2018-12-11 13:07:14Z

2

Use this code instead:

$Config = $Config -creplace "DeploymentType = '[^']*'$","DeploymentType = 'Full'"

It will only replace the text that has an end of line after a last quote.

It depends on your config actually how to make a regexp. Probably some other restrictions should be specified

answered Dec 11, 2018 at 13:07

montonero

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rahul · Accepted Answer · 2018-12-11 14:10:09Z

0

u can write a regular expression and compare lines on it like \$Global:.=\s('')

answered Dec 11, 2018 at 14:10

rahul

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Brank Victoria · Accepted Answer · 2018-12-11 13:07:06Z

0

When you are taking your script as content you don't know which is a part of comment and which is not. So you have to replace the first parameter of the method -creplace to a more specific regular expression. For example:

$Config = $Config -creplace "DeploymentType = \'(Full|Partial){0,1}\'","DeploymentType = 'Full'"

This means that this will replace the following text:

DeploymentType=''
DeploymentType='Full'
DeploymentType='Partial'

The comment will not be replaced because the value is

DeploymentType='Full/Partial'

edited Dec 11, 2018 at 13:07

answered Dec 11, 2018 at 13:02

Brank Victoria

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