A PowerShell script for downloading WoW addons easily

download-wow-addons.ps1

# This script downloads WoW addons to ~/Downloads in the new-addons directory,
# and replaces current versions of the addons with the updated addons.

# Makes Invoke-WebRequest not slow and useless.
$global:ProgressPreference = 'SilentlyContinue'
$ErrorActionPreference = "Stop"
cd ~/Downloads

$wowPath = "${env:ProgramFiles(x86)}\World of Warcraft\Interface\AddOns"
# Write (filename, url) here for the addons you want.
$downloadList = @(
  ,@("raider-io", "https://wow.curseforge.com/projects/raiderio/files/latest")
  ,@("dbm", "https://wow.curseforge.com/projects/deadly-boss-mods/files/latest")
  ,@("gathermate", "https://www.wowace.com/projects/gathermate2/files/latest")
  ,@("tomtom", "https://wow.curseforge.com/projects/tomtom/files/latest")
)
$exclusionList = @(
  ,"RaiderIO_DB_KR_A"
  ,"RaiderIO_DB_KR_H"
  ,"RaiderIO_DB_TW_A"
  ,"RaiderIO_DB_TW_H"
  ,"RaiderIO_DB_US_A"
  ,"RaiderIO_DB_US_H"
)

if (Test-Path "new-addons") {
  Remove-Item -Force -Recurse "new-addons"
}

New-Item -ItemType directory -Path "new-addons" | Out-Null

Foreach ($download in $downloadList) {
  $zip = "new-addons/$($download[0]).zip"
  $dir = "new-addons/$($download[0])"

  echo "Downloading: $($download[1])"
  Invoke-WebRequest -Uri "$($download[1])" -OutFile "$zip"
  echo "Extracting: $($zip)"
  Expand-Archive "$zip" -DestinationPath "$dir"
  Remove-Item "$zip"
}

Foreach ($download in $downloadList) {
  Get-ChildItem "new-addons/$($download[0])" | Foreach-Object {
    if ($exclusionList -contains $_.BaseName) {
      continue
    }

    echo "Copying: $($_.BaseName)"

    if (Test-Path "$wowPath/$($_.BaseName)") {
      Remove-Item -Force -Recurse "$wowPath/$($_.BaseName)"
    }

    Copy-Item -recurse -literalPath "$($_.FullName)" `
      -destination "$wowPath/$($_.BaseName)"
  }
}