UnityのEditorPrefsで保存した値を操作するPowerShellスクリプト

UnityEditorPrefs.ps1

Set-Variable -Name "DefaultUnityEditorVersion" -Value 5 -Option Constant -Scope Global

function global:Get-UnityEditorPrefPath()
{
	[CmdletBinding()]
	[OutputType([string])]
	param
	(
		[Parameter(Mandatory=$false)]
		[int] $Version = $DefaultUnityEditorVersion
	)
	process
	{
		"HKCU:\SOFTWARE\Unity Technologies\Unity Editor {0}.x" -f $Version
	}
}

function global:ConvertTo-UnityEditorPrefEntryName()
{
	[CmdletBinding()]
	[OutputType([string[]])]
	param
	(
		[Parameter(Mandatory=$true, ValueFromPipeline=$true)]
		[string[]] $Key
	)
	begin
	{
		function GetHash([string] $value)
		{
			[UInt64]$max = [UInt32]::MaxValue + 1

			[UInt32]$hash = 5381
			foreach($char in [char[]]$value)
			{
				$hash = [UInt32](($hash * 33) % $max) -bxor $char
			}

			return $hash
		}

		function GetEntryName([string] $key)
		{
			return "${key}_h$(GetHash $key)"
		}
	}
	process
	{
		return $Key | ForEach-Object { (GetEntryName $_) }
	}
}

function global:Get-UnityEditorPrefEntry()
{
	[CmdletBinding()]
	[OutputType([string[]])]
	param
	(
		[Parameter(Mandatory=$false, ValueFromPipeline=$true)]
		[string[]] $Key,

		[Parameter(Mandatory=$false)]
		[int] $Version = $DefaultUnityEditorVersion
	)
	begin
	{
		$path = Get-UnityEditorPrefPath -Version $Version
		$all = Get-Item -Path $path | Select-Object -ExpandProperty Property
		if($null -ne $Key)
		{
			$nohash = $all | Foreach-Object { if($_ -match '^(.*)_h\d+$') { return $matches[1] } }
		}
	}
	process
	{
		if($null -ne $Key)
		{
			return $nohash | Where-Object { $_ -like $Key } | ConvertTo-UnityEditorPrefEntryName
		}
		else
		{
			return $all
		}
	}
}

function global:Get-UnityEditorPref
{
	[CmdletBinding()]
	[OutputType([object[]])]
	param
	(
		[Parameter(Mandatory=$false, ValueFromPipeline=$true)]
		[string[]] $Key,

		[Parameter(Mandatory=$false)]
		[switch] $Json,

		[Parameter(Mandatory=$false)]
		[int] $Version = $DefaultUnityEditorVersion
	)
	begin
	{
		$path = Get-UnityEditorPrefPath -Version $Version
		$regkey = Get-Item -Path $path

		function GetEntryValue([string] $name)
		{
			$value = $regkey.GetValue($name)
			if($value -is [Int64])
			{
				return [System.BitConverter]::Int64BitsToDouble($value)
			}
			elseif($value -is [byte[]])
			{
				$text = [Text.Encoding]::UTF8.GetString($value)
				if(0 -eq [int]$text[-1])
				{
					$text = $text.SubString(0, $text.Length - 1)
				}

				if($Json.IsPresent)
				{
					try { return ConvertFrom-Json -InputObject $text } catch { return $text }
				}
				else
				{
					return $text
				}
			}
			else
			{
				return $value
			}
		}
	}
	process
	{
		$entries = Get-UnityEditorPrefEntry -Key $Key -Version $Version

		return $entries | ForEach-Object { if($_ -match '^(.*)_h\d+$') { [PSCustomObject]@{ 'Key' = $matches[1]; 'Value' = (GetEntryValue $_); 'Name' = $_} } }
	}
}

function global:Remove-UnityEditorPref
{
	[CmdletBinding(DefaultParameterSetName='Default')]
	[OutputType([void])]
	param
	(
		[Parameter(ParameterSetName='Default', Position=0, Mandatory=$true)]
		[string[]] $Key,

		[Parameter(ParameterSetName='Pipeline', Position=0, Mandatory=$true, ValueFromPipeline=$true)]
		[PSCustomObject[]] $InputObject,

		[Parameter(Position=1, Mandatory=$false)]
		[int] $Version = $DefaultUnityEditorVersion
	)
	begin
	{
		$path = Get-UnityEditorPrefPath -Version $Version
	}
	process
	{
		switch ($PSCmdlet.ParameterSetName) {
			'Default' { $entries = Get-UnityEditorPrefEntry -Key $Key -Version $Version }
			'Pipeline' { $entries = $InputObject | Select-Object -ExpandProperty Name }
		}

		$entries | ForEach-Object { Remove-ItemProperty -Path $path -Name $_ }
	}
}