PSGzip.psm1
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function Compress-GzipArchive { <# .SYNOPSIS Creates a compressed tar archive (tarball) from specified file. .DESCRIPTION Compress-GzipArchive creates a compressed archive (tarball) file from one file. .PARAMETER Path Specifies the path to the archive file. .PARAMETER Destination Specifies the path which archived file will be saved to. #> [CmdletBinding()] param ( [Parameter(Position = 1)][string]$Destination, [Parameter(Mandatory = $true, Position = 0)][string]$Path ) $ErrorActionPreference = 'Stop' #Make sure streams will always get the absolute path $Path = [System.IO.Path]::Combine($PWD.Path, $Path) if ($Destination.Length -gt 0) { $Destination = [System.IO.Path]::Combine($PWD.Path, $Destination) } else { $Destination = $Path + '.gz' } $OrigStrm = [System.IO.FileStream]::new($Path, [System.IO.FileMode]::Open, [System.IO.FileAccess]::Read, [System.IO.FileShare]::None) $DestStrm = [System.IO.FileStream]::new($Destination, [System.IO.FileMode]::CreateNew, [System.IO.FileAccess]::Write, [System.IO.FileShare]::None) $CmprStrm = [System.IO.Compression.GZipStream]::new($DestStrm, [System.IO.Compression.CompressionMode]::Compress) $bfr = [System.Byte[]]::new(131072) do { $len = $OrigStrm.Read($bfr, 0, 131072) $CmprStrm.Write($bfr, 0, $len) } while ($len -gt 0) $OrigStrm.Close() #Compress stream need to be close before the stream that writes actual file. $CmprStrm.Close() $DestStrm.Close() } function Expand-GzipArchive { <# .SYNOPSIS Extracts file from a specified tar archive (tarball). .DESCRIPTION Expand-GzipArchive extracts file from a specified tarball archive file to a specified destination. .PARAMETER Path Specifies the path to the archive file. .PARAMETER Destination Specifies the path which archived file will be extracted to. #> [CmdletBinding()] param ( [Parameter(Position = 1)][string]$Destination, [Parameter(Mandatory = $true, Position = 0)][string]$Path ) $ErrorActionPreference = 'Stop' #Same as L20 $Path = [System.IO.Path]::Combine($PWD.Path, $Path) if ($Destination.Length -gt 0) { $Destination = [System.IO.Path]::Combine($PWD.Path, $Destination) } else { $Destination = $Path.Substring(0, $Path.Length - 3) } $OrigStrm = [System.IO.FileStream]::new($Path, [System.IO.FileMode]::Open, [System.IO.FileAccess]::Read, [System.IO.FileShare]::Read) $ExpdStrm = [System.IO.Compression.GZipStream]::new($OrigStrm, [System.IO.Compression.CompressionMode]::Decompress) $DestStrm = [System.IO.FileStream]::new($Destination, [System.IO.FileMode]::Create, [System.IO.FileAccess]::Write, [System.IO.FileShare]::None) $bfr = [System.Byte[]]::new(131072) do { $len = $ExpdStrm.Read($bfr, 0, 131072) $DestStrm.Write($bfr, 0, $len) } while ($len -gt 0) $OrigStrm.Close() $DestStrm.Close() $ExpdStrm.Close() } |