Chocolatey Sync Kickstart

Sync-Chocolatey.ps1

function Sync-Chocolatey {
    [CmdletBinding(SupportsShouldProcess)]
    Param(
        [Parameter()]
        [String]
        $OutputDirectory    
    )
    begin {
        function GetInstalledApps {
            process {
                $32BitReg = 'HKLM:\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*'
                $64bitReg = 'HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\*'
            
                if ((Test-Path $32BitReg)) {
                    $32Bit = Get-ItemProperty HKLM:\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\* | Select-Object DisplayName
                }

                if ((Test-Path $64bitReg)) {
                    $64Bit = Get-ItemProperty HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\* | Select-Object DisplayName
                }

                $InstalledApps = ($32Bit + $64Bit) | Where-Object { -not [String]::IsNullOrEmpty($_.DisplayName) }
                return $InstalledApps
            }
        }

        Function GetTop500Packages {
            #Setup OData query
            $ODataQuery = @(
                '$filter=(IsLatestVersion and (substringof(''Deprecated'', Title) eq false) and (substringof(''.install'', Id) eq false))'
                '$orderby=DownloadCount desc'
            ) -join '&'
            $Url = "https://chocolatey.org/api/v2/Packages()?$ODataQuery"

            #Collect the top 100 downloaded packages from CCR
            if(-not $Script:Data){
                $Script:Data = @(
                    Invoke-RestMethod -Uri ($Url + '&$top=40')
                    Invoke-RestMethod -Uri ($Url + '&$top=40&$skip=40')
                    Invoke-RestMethod -Uri ($Url + '&$top=40&$skip=80')
                    Invoke-RestMethod -Uri ($Url + '&$top=40&$skip=120')
                    Invoke-RestMethod -Uri ($Url + '&$top=40&$skip=160')
                    Invoke-RestMethod -Uri ($Url + '&$top=40&$skip=200')
                    Invoke-RestMethod -Uri ($Url + '&$top=40&$skip=240')
                    Invoke-RestMethod -Uri ($Url + '&$top=40&$skip=280')
                    Invoke-RestMethod -Uri ($Url + '&$top=40&$skip=320')
                    Invoke-RestMethod -Uri ($Url + '&$top=40&$skip=360')
                    Invoke-RestMethod -Uri ($Url + '&$top=40&$skip=400')
                    Invoke-RestMethod -Uri ($Url + '&$top=40&$skip=440')
                    Invoke-RestMethod -Uri ($Url + '&$top=20&$skip=480')

                ) | Where-Object { -not [String]::IsNullOrEmpty($_.properties.Title) } |Select-Object -Property @(
                    @{ Name = 'Downloads'; Expression = { $_.properties.DownloadCount.InnerText } }
                    @{ Name = 'Title'; Expression = { $_.properties.Title } }
                    @{ Name = 'Id'; Expression = { $_.title.InnerText } }
                )
            }

            return $Script:Data
        }
    }
    process {
        
        $Data = GetTop500Packages
        #Create a collection for  the map, and populate from OData query results
        $map = [System.Collections.Generic.List[psobject]]::new()
        $Data | Foreach-Object {
            $h = [PsCustomObject]@{DisplayName = $_.Title ; PackageId = $_.Id }
            $map.Add($h)
        }

        #Validate that Programs and Features entry is in the top 100 packages
        $Applications = GetInstalledApps

        foreach ($App in $Applications) {
            Write-Verbose -Message "Syncing: $($App.DisplayName)"
            $MapItem = $map.Where({($app.DisplayName -match [Regex]::Escape($($_.Displayname -replace "(.*)\(.*(86|64).*\)?",'$1'))) -or ($_.DisplayName -match [Regex]::Escape($($app.Displayname -replace "(.*)\(.*(86|64).*\)?",'$1').Trim()))},1)

            if ($MapItem) {
                if ($PSCmdlet.ShouldProcess("choco sync --id='$($App.DisplayName)' --package-id='$($MapItem.PackageId.ToLower())'", "Sync Command")) {
                    
                    if(-not $OutputDirectory){
                        $chocoArgs = @('sync',"--id='$($App.DisplayName)'","--package-id='$($MapItem.PackageId.ToLower())'")
                    } else {
                         $chocoArgs = @('sync',"--id='$($App.DisplayName)'","--package-id='$($MapItem.PackageId.ToLower())'","--output-directory='$OutputDirectory'")
                    }

                    & choco @chocoArgs
                } 
            }
            else {
                Write-Warning "Installed application not in map!"
            }
        }
    }
}