RoundhousE script hash calculator to fix already executed script in UP folder without RH complaining about the script change

Generate RoundhousE SQL script hash.ps1

Param(
    [Parameter(Mandatory = $true)]
    [string]$file
)

#port of RoundhousE WindowsFileSystemAccess.get_file_encoding
function getFileEncoding($file){
    $enc = [System.Text.Encoding]::Default

    $buffer = gc $file -Encoding Byte

    if ($buffer[0] -eq 0xef -and $buffer[1] -eq 0xbb -and $buffer[2] -eq 0xbf){
        $enc = [System.Text.Encoding]::UTF8
    }
    elseif ($buffer[0] -eq 0xfe -and $buffer[1] -eq 0xff){
        $enc = [System.Text.Encoding]::Unicode
    }
    elseif ($buffer[0] -eq 0 -and $buffer[1] -eq 0 -and $buffer[2] -eq 0xfe -and $buffer[3] -eq 0xff){
        $enc = [System.Text.Encoding]::UTF32
    }
    elseif ($buffer[0] -eq 0x2b -and $buffer[1] -eq 0x2f -and $buffer[2] -eq 0x76){
        $enc = [System.Text.Encoding]::UTF7
    }

    return $enc;
}

$enc = getFileEncoding $file
$fileContents =  [System.IO.File]::ReadAllText($file, $enc).Replace("'", "''")#Replace is RH WTF "feature"
$bytes = [System.Text.Encoding]::UTF8.GetBytes($fileContents)
$md5 = [System.Security.Cryptography.MD5]::Create()
[convert]::ToBase64String($md5.ComputeHash($bytes))

Mark script as already executed in DB.sql

 INSERT INTO xxx_rh_run(id, version_id, script_name, text_hash, one_time_script,
 entry_date, modified_date, entered_by)
 VALUES (xxx_rh_runid.NEXTVAL, 0, 'xxx.sql', 'xxx', 1, SYSDATE, SYSDATE, 'manual');

Modify script hash in DB.sql

 UPDATE xxx_rh_run
 SET text_hash = 'xxx'
 WHERE script_name = 'xxx'