PowerShell Script to Find (and delete) all excluded files in a Visual Studio Solution

DeleteExcludedFiles.ps1

<#
.SYNOPSIS
Find all files excluded from a Visual Studio solution with options to delete.

.DESCRIPTION
Finds all excluded files in all projects in the provided Visual Studio solution with options to delete the files.

.PARAMETER Solution
The path to the .sln file

.PARAMETER VsVersion
The Visual Studio version (10, 11, 12) (Used to locate the tf.exe file)

.PARAMETER SvnDelete
Mark files as deleted in SVN

#>

[CmdletBinding()]
param(
    [Parameter(Position=0, Mandatory=$true)]
    [string]$Solution,
    [Parameter(Mandatory=$false)]
    [ValidateRange(10,12)] 
    [int] $VsVersion = 12,  
    [switch]$SvnDelete
)
$ErrorActionPreference = "Stop"
$solutionDir = Split-Path $Solution | % { (Resolve-Path $_).Path }

$projects = Select-String -Path $Solution -Pattern 'Project.*"(?<file>.*\.csproj)".*' `
	| % { $_.Matches[0].Groups[1].Value } `
	| % { Join-Path $solutionDir $_ }
	
$excluded = $projects | % {
	$projectDir = Split-Path $_
	
	Write-Host "Analyzing" $_

	$projectFiles = Select-String -Path $_ -Pattern '<(Compile|None|Content|EmbeddedResource) Include="(.*)".*' `
		| % { $_.Matches[0].Groups[2].Value } `
		| % { Join-Path $projectDir $_ }
		
	$diskFiles = Get-ChildItem -Path $projectDir -Recurse `
		| ? { !$_.PSIsContainer } `
		| % { $_.FullName } `
		| ? { $_ -match ".cs$" } `
		| ? { $_ -notmatch "\\obj\\" }
		
	(compare-object $diskFiles $projectFiles -PassThru) | Where { $_.SideIndicator -eq '<=' }
} 

Write-Host "Found" $excluded.count "excluded files"

if ($SvnDelete) 
{
	Write-Host "SVN deleting excluded files..."
	$excluded | % {
		[Array]$arguments = @("delete", "`"$_`"")
		& svn $arguments
	}
} 
else 
{
	Write-Host "SvnDelete was not specified. Listing excluded files only..."
	$excluded
}