Merge #195

195: freeze-plan: new package. r=quasicomputational a=quasicomputational

bors r+

Co-authored-by: quasicomputational <quasicomputational@gmail.com>

Author: bors[bot]

README.markdown

@@ -18,6 +18,8 @@ Cabal stuff
 
 * [q4c12-defrost](packages/defrost) is like Stack's [`pvp-bounds` feature](https://docs.haskellstack.org/en/stable/yaml_configuration/#pvp-bounds), except it works on Cabal's freeze files instead. If you test your code against a set of freeze files, `defrost` can add the PVP bounds to your `.cabal` file corresponding to the dependency versions in those freeze files.
 
+* [q4c12-freeze-plan](packages/freeze-plan) takes a `plan.json` and turns it into a freeze file. Maybe someday I'll polish it up and get it into upstream `cabal-install` as a better version of `v2-freeze` that [produces tight constraints](https://github.com/haskell/cabal/issues/6110).
+
 * [q4c12-project-file](packages/project-file) is a horribly incomplete parser and renderer for Cabal's [`.project` configuration files](http://cabal.readthedocs.io/en/latest/nix-local-build.html#configuring-builds-with-cabal-project).
 
 XML

cabal.project

@@ -4,6 +4,7 @@ packages:
   packages/defrost
   packages/dhondt
   packages/foldable-utils
+  packages/freeze-plan
   packages/hlist
   packages/meta
   packages/position