PSAvoidTrailingWhitespace: Rule not applied when using formatter + single character lines with trailing whitespace are truncated by liamjpeters · Pull Request #1993 · PowerShell/PSScriptAnalyzer

liamjpeters

You need to tell the formatter to include that rule when carrying out the formatting.

$Settings = @{
    IncludeRules = @("PSAvoidTrailingWhitespace")
    Rules = @{
        "PSAvoidTrailingWhitespace" = @{}
    }
}

So the below code, with lots of trailing whitespace:

$ScriptDef = @"
    Function Get-Example {
        'Example'`t`t`t
    }`t`t`t
"@

Is not altered when running:

Invoke-Formatter -ScriptDefinition $ScriptDef

But is fixed when running:

Invoke-Formatter -ScriptDefinition $ScriptDef -Settings $Settings

Hope that helps!