nix-helpers.psm1

<#
.SYNOPSIS
Unpack *.tar file
#>
function Extract-TarArchive {
    param(
        [Parameter(Mandatory=$true)]
        [String]$ArchivePath,
        [Parameter(Mandatory=$true)]
        [String]$OutputDirectory
    )

    Write-Debug "Extract $ArchivePath to $OutputDirectory"
    tar -C $OutputDirectory -xzf $ArchivePath --strip 1
}

function Create-TarArchive {
    param(
        [Parameter(Mandatory=$true)]
        [String]$SourceFolder,
        [Parameter(Mandatory=$true)]
        [String]$ArchivePath,
        [string]$CompressionType = "gz",
        [switch]$DereferenceSymlinks
    )

    $arguments = @(
        "-c", "--$CompressionType"
    )

    if ($DereferenceSymlinks) {
        $arguments += "-h"
    }

    $arguments += @("-f", $ArchivePath, ".")

    Push-Location $SourceFolder
    Write-Debug "tar $arguments"
    tar @arguments
    Pop-Location
}