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Describe why PS functions are called by namespace

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As the prompt function is called all the time, specifically namespace the
cmldets it uses to avoid them being hijacked in the user session.
This commit is contained in:
Jackbennett 2016-10-10 10:30:01 +01:00
parent 010049a849
commit b349b19869
1 changed files with 7 additions and 1 deletions
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8
vendor/profile.ps1 vendored
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@ -155,9 +155,14 @@ Set-Item -Path function:\PrePrompt -Value $PrePrompt -Options Constant
Set-Item -Path function:\CmderPrompt -Value $CmderPrompt -Options Constant
Set-Item -Path function:\PostPrompt -Value $PostPrompt -Options Constant
<#
This scriptblock runs every time the prompt is returned.
Explicitly use functions from MS namespace to protect from being overridden in the user session.
Custom prompt functions are loaded in as constants to get the same behaviour
#>
[ScriptBlock]$Prompt = {
$realLASTEXITCODE = $LASTEXITCODE
$host.UI.RawUI.WindowTitle = Split-Path $pwd.ProviderPath -Leaf
$host.UI.RawUI.WindowTitle = Microsoft.PowerShell.Management\Split-Path $pwd.ProviderPath -Leaf
PrePrompt | Microsoft.PowerShell.Utility\Write-Host -NoNewline
CmderPrompt
Microsoft.PowerShell.Utility\Write-Host "`nλ " -NoNewLine -ForegroundColor "DarkGray"
@ -166,5 +171,6 @@ Set-Item -Path function:\PostPrompt -Value $PostPrompt -Options Constant
return " "
}
# Functions can be made constant only at creation time
# ReadOnly at least requires `-force` to be overwritten
Set-Item -Path function:\prompt -Value $Prompt -Options ReadOnly