Figure out story for Custom setup scripts

judah commented 6 years ago

How should we support packages like proto-lens or gl that generate Haskell modules with a custom Setup file? Allow custom user rules? Actually just run their Setup script?

Some specific packages:

happy, alex: generate template data-files by compiling and running a program with different CPP flags.
pandoc: installs man page
semigroupoids, comonad, distributive: use cabal-doctest
lens: uses cabal-doctest, and also installs an image to be used by the haddocks
entropy: runs a test C program, not sure for what purpose
darcs: generates a custom Version.hs module for embedding more specific version information; also custom logic for linking against libiconv, similar to what used to be in haskeline
gtk2hs: packages like glib use gtk2hs-buildtools:Gtk2HsSetup

chreekat commented 5 years ago

Actually just run their Setup script?

Isn't that basically the only option? Since shake is designed to pick up new dependencies as it goes, is there a way to inspect the results of running Setup, add them to the mix, and carry on?

bergey commented 4 years ago

Several of these no longer use a custom Setup.hs. The 3 I checked:

https://github.com/ekmett/gl/commit/dba7d55f35e335bbd535fb93274a39ccd5fc03cc https://github.com/simonmar/happy/commit/f2bef509441b63bed05c05759f463adf18e4f758 https://github.com/jgm/pandoc/commit/e8fba105a5e0d63b5fdbc7505d657eda13a52b59

judah / pier

Figure out story for Custom setup scripts #22