PowerShell: Folder Diff

With a new git repo, I after push the source code and then re-pull to a new local repo. To verify the .gitignore is correct, I diff the original folder containing the source code against the git clone just created. The following PowerShell is what I use to dif the folders:

param(

    [Parameter(Mandatory=$true)]

    [string] $folderSource,

    [Parameter(Mandatory=$true)]

    [string] $folderDestination

)

Set-StrictMode -Version 3.0

$ErrorActionPreference = 'Stop'

Set-PSDebug -Off

# Set-PSDebug -Trace 1

[int] $exitCodeSuccess = 0

[int] $exitCodeError = 1

[int] $exitCode = $exitCodeSuccess

function Get-RelativeFilePaths {

    param(

        [Parameter(Mandatory=$true)]

        [string] $folderPath

    )

    [string] $resolvedFolderPath = 

        (Resolve-Path -Path $folderPath -ErrorAction Stop).Path + '\'

    return (

        Get-ChildItem `

            -Path $folderPath `

            -Recurse `

            -File `

            -ErrorAction Stop).

            FullName.

                Replace($resolvedFolderPath, '')

}

try {

    [string[]] $sourceFiles = `

                 Get-RelativeFilePaths $folderSource

    [string[]] $destinationFiles = `

                 Get-RelativeFilePaths $folderDestination

    

    Compare-Object `

        -ReferenceObject $sourceFiles `

        -DifferenceObject $destinationFiles `

        -ErrorAction Stop    

}

catch {

    [System.Management.Automation.ErrorRecord] $errorRecord = $PSItem

    $exitCode = $exitCodeError

    Write-Host $errorRecord

    Write-Host `

        "Exception Message: $($errorRecord.Exception.Message), " + `

        "Stacktrace: $($errorRecord.Exception.StackTrace)"

}

return $exitCode

The launch.json is as followings when running from Visual Studio Code:

{

    "version": "0.2.0",

    "configurations": [

        {

            "name": "Compare-Folders",

            "type": "PowerShell",

            "request": "launch",

            "script": "${workspaceRoot}/Compare-Folders.ps1",

            "cwd": "${workspaceRoot}",

            "args": [

                "-FolderSource",

                <source folder>,

                "-FolderDestination",

                <destination folder>

            ]

        }

    ]

}