add link script for powershell

Author: getchoo

game_clean/link.ps1

@@ -0,0 +1,53 @@
+<#
+	.SYNOPSIS
+		symlink files from a retail Team Fortress 2 build to a patched build
+#>
+
+param (
+	[Parameter(Mandatory=$true)]
+	[string]$TF2Dir
+)
+
+$VerbosePreference = "Continue"
+$OutPath = "$PSScriptRoot\..\game"
+$GameClean = "$PSScriptRoot\."
+
+
+function Make-Symlink {
+	param (
+		[String]$Path
+	)
+
+	$linkpath = "$OutPath/$Path"
+	$targetpath = "$TF2Dir/$Path"
+
+	Write-Verbose -Message "Linking $linkpath to $targetpath"
+	New-Item -ItemType SymbolicLink -Path $linkpath -Target $targetpath
+}
+
+function Glob-Symlink {
+	param (
+		[String]$Path,
+		[String]$Glob
+	)
+
+	Get-ChildItem -Path "$TF2Dir\$Path\*" -Include $Glob | % { $_.Name } | % { Make-Symlink -Path $Path/$_ }
+}
+
+New-Item -ItemType Directory -Path $OutPath
+
+Write-Verbose -Message "Copying $GameClean/copy/ to $OutPath"
+Copy-Item -Recurse -Force $GameClean/clean/* $OutPath
+
+Write-Verbose -Message "Creating $OutPath/tf/materials"
+New-Item -Type Directory -Path $OutPath/tf/materials
+
+$targets = "hl2","platform"
+$targets += ,"maps","media","resource","scripts" | % { "tf/$_" }
+$targets += ,"models","vgui" | % { "tf/materials/$_" }
+ForEach ($t in $targets) {
+	Make-Symlink -Path $t
+}
+
+Glob-Symlink -Glob '' -Path 'bin'
+ForEach ($g in '*.vpk','*.cache') { Glob-Symlink -Glob $g -Path 'tf' }