PS-Gzip Module

Description

PS-GZip Module is a set of PowerShell functions designed to compress and expand strings and files using the GZipStream Class.

See the Docs folder for details on each function.

Requirements

Requires PowerShell 5.1 and above.

Examples

• Compressing a String

PS /> Compress-GzipString 'Hello world!'

H4sIAAAAAAAACvNIzcnJVyjPL8pJUQQAlRmFGwwAAAA=

• Expanding a Base64 GZip compressed String

PS /> Expand-GzipString H4sIAAAAAAAACvNIzcnJVyjPL8pJUQQAlRmFGwwAAAA=

Hello world!

• An example using Bacon Ipsum API

# Thanks https://baconipsum.com/ :D
$loremIp = Invoke-RestMethod 'https://baconipsum.com/api/?type=all-meat&paras=100&start-with-lorem=1&format=text'
$compressedLoremIp = Compress-GzipString $loremIp
@{ Expanded = $loremIp; Compressed = $compressedLoremIp }.GetEnumerator() |
  Select-Object @{ N='Type'; E={ $_.Key }}, @{ N='Length'; E={ $_.Value.Length }}

Type       Length
----       ------
Compressed  13624
Expanded    45033

(Expand-GzipString $compressedLoremIp) -eq $loremIp # => # Should be True

• Compressing a File

PS /> $temp = New-TemporaryFile
PS /> 'Hello world!' | Set-Content $temp
PS /> Compress-GzipFile $temp -DestinationPath test.gz
PS /> Remove-Item $temp

• Expanding a Gzip compressed File

PS /> Get-Item test.gz | Expand-GzipFile

Hello world!

PS /> Remove-Item test.gz