BepInEx installer script (BepInEx + ConfigurationManager + HookGenPatcher + LighterPatcher)

bepinex-installer.ps1

Add-Type -Assembly System.IO.Compression.FileSystem

# Install BepInEx
$ArchivePath = "./BepInEx-temp.zip"
$LatestRelease = Invoke-RestMethod -Uri https://api.github.com/repos/BepInEx/BepInEx/releases/latest -Method Get
foreach($asset in $LatestRelease.assets) {
    if(!$asset.name.StartsWith("BepInEx_x64_")) {
        continue
    }
    Invoke-WebRequest -uri $asset.browser_download_url -OutFile $ArchivePath
    Expand-Archive $ArchivePath "."
    Remove-Item $ArchivePath
    break
}

# Install ConfigurationManager
$ArchivePath = "./ConfigurationManager-temp.zip"
$LatestRelease = Invoke-RestMethod -Uri https://api.github.com/repos/BepInEx/BepInEx.ConfigurationManager/releases/latest -Method Get
foreach($asset in $LatestRelease.assets) {
    if(!$asset.name.StartsWith("BepInEx.ConfigurationManager_")) {
        continue
    }
    Invoke-WebRequest -uri $asset.browser_download_url -OutFile $ArchivePath
    Expand-Archive $ArchivePath "."
    Remove-Item $ArchivePath
    break
}

New-Item -Path "./BepInEx/" -Name "patchers" -ItemType "directory"

# Install HookGenPatcher
$DownloadUrl = "https://github.com/harbingerofme/Bepinex.Monomod.HookGenPatcher/releases/latest/download/BepInEx.MonoMod.HookGenPatcher.dll"
$DownloadPath = "./BepInEx/patchers/BepInEx.MonoMod.HookGenPatcher.dll"
Invoke-WebRequest -uri $DownloadUrl -OutFile $DownloadPath

# Install the necessary MonoMod executables (for HookGenPatcher)
$ArchivePath = "./MonoMod-temp.zip"
# 22.02.10.01 is the latest version HookGenPatcher works with
$LatestRelease = Invoke-RestMethod -Uri "https://api.github.com/repos/MonoMod/MonoMod/releases/tags/v22.02.10.01" -Method Get
foreach($asset in $LatestRelease.assets) {
    if(!$asset.name.StartsWith("MonoMod-") -or !$asset.name.EndsWith("-net452.zip")) {
        continue
    }
    Invoke-WebRequest -uri $asset.browser_download_url -OutFile $ArchivePath
    $zipFile = [IO.Compression.ZipFile]::OpenRead($ArchivePath)
    foreach($file in $zipFile.Entries | where {$_.Name -eq "MonoMod.exe" -or $_.Name -eq "MonoMod.RuntimeDetour.HookGen.exe"}) {
        $fileName = $file.Name
        [System.IO.Compression.ZipFileExtensions]::ExtractToFile($file, "./$fileName", $true)
    }
    $zipFile.Dispose()
    Remove-Item $ArchivePath
    break
}

# Install LighterPatcher
$DownloadUrl = "https://github.com/harbingerofme/LighterPatcher/releases/latest/download/LighterPatcher.dll"
$DownloadPath = "./BepInEx/patchers/LighterPatcher.dll"
Invoke-WebRequest -uri $DownloadUrl -OutFile $DownloadPath

Noice