Monday, July 25, 2016

Maintainer required for Derive

Summary: I'm looking for a maintainer to take over Derive. Interested?

The Derive tool is a library and set of definitions for generating fragments of code in a formulaic way from a data type. It has a mechanism for guessing the pattern from a single example, plus a more manual way of writing out generators. It supports 35 generators out of the box, and is depended upon by 75 libraries.

The tool hasn't seen much love for some time, and I no longer use it myself. It requires somewhat regular maintenance to upgrade to new versions of GHC and haskell-src-exts. There are lots of directions the tool could be taken, more derivations, integration with the GHC Generic derivation system etc. There's a few generic pieces that could be broken off (translation between Template Haskell and haskell-src-exts, the guessing mechanism).

Anyone who is interested should comment on the GitHub ticket. In the absence of any volunteers I may continue to do the regular upgrade work, or may instead have it taken out of Stackage and stop upgrading it.

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