Proposal: splitting the network package

[Johan Tibell]

On Thu, Jan 31, 2013 at 10:05 PM, Michael Snoyman <michael at snoyman.com>wrote:

> Many users won't be able to upgrade to the new network library
> immediately. However, adding an extra dependency on (an essentially empty)
> network-uri is perfectly feasible. My approach makes it possible for
> library authors to make their code compatible with both network 1.4 and 1.5
> with just a single line change.
>
> If you want to see examples that were more painful from the author
> perspective, consider the previous merging of network and
> network-bytestring, or the blaze-markup/blaze-html split. Both of them
> required adding cabal flags and conditionals to every user package that
> wanted to work with both versions, which definitely caused some headaches.
>

Someone ought to write a "How to split a package" and a "How to merge two
packages" guide that carefully lists out the steps and the pros and cons of
the approach.

-- Johan
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