PowerShell / Chocolatey, how to do an offline install of Chocolatey itself

Question

I would like to get chocolatey onto multiple systems. The normal way I do this is:

if (!(Test-Path "C:\ProgramData\chocolatey\bin")) {
    Set-ExecutionPolicy Bypass -Scope Process -Force; [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072; iex ((New-Object System.Net.WebClient).DownloadString('https://community.chocolatey.org/install.ps1'))
}

That's fine, but this will connect to the internet, pointlessly re-downloading the Chocolatey package that I should be able to keep pre-downloaded, then extracting and setting up Chocolatey. This is like having to download a setup.exe every single time that you just want to install a program (for 20 systems, you would then have to download setup.exe 20 times), which slows things down and feels wasteful when I just want to get the choco.exe command available on systems as quickly as possible. I also don't mind if I have a slightly older version of chocolatey, I can redownload the main copy whenever I need.

It occurs to me that it should be easy to have the components pre-downloaded, so that I can just point at those files:

• What files do we need to pre-download to have everything required to setup Chocolatey?
• What command would we run against those files to set it up?

Note that this is quite a different question from How do you setup an offline Chocolatey instance?

Answer 1

Installing Chocolatey offline is pretty simple, these days!

You'll need two files:

• The Chocolatey nupkg (available from the Chocolatey Community Repository, you can hit the download button on the left hand side)
• The install script that you are using above

By default, the script downloads the latest version of Chocolatey from the Chocolatey Community Repository.

It's not clear from the parameter name, but you can provide a local file path to use with the -ChocolateyDownloadUrl parameter (or by setting $env:chocolateyDownloadUrl before running the script).

The command(s) to run to install from local files:

Set-ExecutionPolicy Bypass -Scope Process -Force
.\Install.ps1 -ChocolateyDownloadUrl ~\Path\To\Chocolatey.nupkg