haskell.nix/test/ghcjs-overlay/Setup.hs
Hamish Mackenzie 2576a948b5
Improve support for external Hackage repositories (#1370)
* Improve support for external Hackage repositories

This change builds #535. `repository` blocks in `cabal.project` parsed and `cabal` is used to automatically downloaded them.  Then `hackage-to-nix` is used to produce the nix required.

To make it work with restricted eval (on hydra for instance) we need to include a sha256 like this:

```
repository ghcjs-overlay
  url: https://input-output-hk.github.io/hackage-overlay-ghcjs
  secure: True
  root-keys:
  key-threshold: 0
  --sha256: sha256-EPlLYPmIGtxeahlOspRzwJv+60N5mqrNC2BY4jZKceE=
```

To find the correct `sha256` put in an invalid one and attempt a build.
2022-02-18 00:42:11 +13:00

3 lines
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Haskell

import Distribution.Simple
main = defaultMain