Mirror a website using wget

Mirror-Website.ps1

param (
    [Parameter(Mandatory)][string]$Domain,
    [string]$WgetCommand = 'wget.exe'
)

Get-Command -Name $WgetCommand -CommandType Application -ErrorAction Stop | Out-Null

$TargetPath = '{0}_{1}' -f $Domain, (Get-Date -Format 'yyMMdd')

if (Test-Path -LiteralPath $TargetPath) {
    Write-Warning "Path '$TargetPath' already exists. Can't continue."
    exit
}

mkdir $TargetPath -ErrorAction Stop
Push-Location $TargetPath

#      --exclude-domains=LIST      comma-separated list of rejected domains
# -E,  --adjust-extension          save HTML/CSS documents with proper extensions
# -H,  --span-hosts                go to foreign hosts when recursive
# -k,  --convert-links             make links in downloaded HTML or CSS point to local files
# -l,  --level=NUMBER              maximum recursion depth (inf or 0 for infinite)
# -nv, --no-verbose                turn off verboseness, without being quiet
# -p,  --page-requisites           get all images, etc. needed to display HTML page
# -r,  --recursive                 specify recursive download
# -U,  --user-agent=AGENT          identify as AGENT instead of Wget/VERSION
# -X,  --exclude-directories=LIST  list of excluded directories
$wgetArgs = `
    '--exclude-domains=googleapis.com,youtube.com', `
    '--span-hosts', `
    '--convert-links', `
    '--level=inf', `
    '--no-verbose', `
    '--page-requisites', `
    '--user-agent="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36 Edge/15.15063"', `
    "http://$Domain"

$process = Start-Process -FilePath $WgetCommand -ArgumentList $wgetArgs -NoNewWindow -Wait -PassThru
$exitCode = $process.ExitCode
if ($exitCode -ne 0) {
    Write-Warning "'$WgetCommand' failed, error $exitCode"
    exit
}

Pop-Location