$ErrorActionPreference = "Stop"
$scriptDir = $PSScriptRoot
if ( [string]::IsNullOrWhiteSpace($scriptDir))
{
    $scriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
}
$root = (Resolve-Path -LiteralPath (Join-Path $scriptDir "..")).Path
Set-Location -LiteralPath $root
$origin = git remote get-url origin
$origin = $origin.TrimEnd("/")
$remoteRoot = $origin -replace "/[^/]+(\.git)?$", ""
function Fetch-Repo
{
    param(
        [string]$Repo,
        [string]$Branch,
        [string]$Dir
    )
    if (Test-Path -LiteralPath $Dir -PathType Container)
    {
        git -C $Dir rev-parse --is-inside-work-tree *> $null
        git -C $Dir remote set-url origin $Repo
        git -C $Dir fetch origin $Branch
        git -C $Dir checkout $Branch
        git -C $Dir pull --ff-only origin $Branch
    }
    else
    {
        git clone --branch $Branch --single-branch $Repo $Dir
    }
}
function Fetch-RepoEx
{
    param(
        [string]$Name
    )
    $repo = "$remoteRoot/$Name"
    $branch = "master"
    Fetch-Repo -Repo $repo -Branch $branch -Dir "third_party/$Name"
}


Fetch-RepoEx "build_infra"
Fetch-RepoEx "CPP_Core"
Fetch-RepoEx "Renderive"