Cabal: download dependencies for later offline build

[Henning Thielemann]

On Tue, 13 Nov 2012, Bram Neijt wrote:

> Dear reader,
> I'm experimenting with creating my own little build server using disk images as job input/output and KVM to
> run them[1].
> 
> As a security measure, the build process does not have any network access during the build, so I need to
> make sure everything is available before the build starts.
> 
> What is the easiest way to "take a cabal build offline" as it were, so I can make sure a cabal build will
> work without a network connection?

cabal fetch