'PSUseDeclaredVarsMoreThanAssignments' in case of env variable

[ghost]

When you declare an env variable and not use in current script, PSScriptAnalyzer show the PSUseDeclaredVarsMoreThanAssignments warning.

Specific use case: I set the $Env:GIT_WORK_TREE for git configuration; PSScriptAnalyzer show: The variable 'GIT_WORK_TREE' is assigned but never used. (PSUseDeclaredVarsMoreThanAssignments)

[bergmeister]

@robdesideri Thanks for reporting the case, it is a known issue that PSUseDeclaredVarsMoreThanAssignments can produce false positives in certain cases. However I canot repro your problem using PSScriptanalyzer 1.16.1 and PowerShell 5.1:
Invoke-ScriptAnalyzer -ScriptDefinition "$Env:GIT_WORK_TREE=$gitWorkTree" does not return a warning. Please provide more details. Also note that another way of setting environment variables is
[System.Environment]::SetEnvironmentVariable($string)

[bergmeister]

Closing because it is a duplicate of #631