track the changes for pcf-scripts and pcf-start NPM packages

pcf-stalker.ps1

If(!(Test-Path "./PCF")){
    New-Item "./PCF" -ItemType Directory
}

Set-Location "./PCF"

If(!(Test-Path "./.git")){
    & git init
}

$pcfScripts = & npm view pcf-scripts versions --json  | ConvertFrom-Json 
$pcfStart = & npm view pcf-start versions --json  | ConvertFrom-Json 

$orphanPcfScripts = $pcfScripts | Where { $_ -notin $pcfStart }

$orphanPcfStart = $pcfStart | Where { $_ -notin $pcfScripts }

If($orphanPcfScripts.Length -gt 0){
    Write-Host "The following pcf-scripts versions are orphan: " $orphanPcfScripts
    $pcfScripts = $pcfScripts | Where { $_ -notin $orphanPcfScripts }
}

If($orphanPcfStart.Length -gt 0){
    Write-Host "The following pcf-scripts versions are orphan: " $orphanPcfStrart
}

if(!(Test-Path "./package.json")){
    & npm init --y
    & git add .
    & git commit -m "Initialized Package"
    & git tag 0.0.0
}


& git checkout tags/0.0.0

foreach ($version in $pcfScripts){
    if((& git tag --list $version).Length -gt 0){
        & git checkout tags/$version
        continue;
    }
    If( Test-Path "./node_modules"){
        Remove-Item "./node_modules" -Recurse -Force
    }
    & npm install pcf-scripts@$version pcf-start@$version
    $folders = Get-ChildItem "./node_modules/"
    foreach($folder in $folders){
        if($folder.Name -in @(".bin", ".package-lock.json", "pcf-start","pcf-scripts")){
            continue;
        }
        Remove-Item "./node_modules/$folder" -Recurse -Force
    }
    & git add .
    git commit -m "$version"
    git tag $version
}

Set-Location ".."