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bd603e0b51
Providing hackage and stackage here simplifies usage of the new Haskell Infrastructure. With this change, the user doesn't need to specify revisions of the external repos, or update them. Basically, with hackage.nix and stackage.nix, the latest version is always best, because snapshots and package versions are added on top. So there is no need for users to choose a revision. Also add mkStackPkgSet which is a shortcut for building stack projects.
10 lines
292 B
Nix
10 lines
292 B
Nix
# overrideWith - Allow the user to override the given default path
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# with a NIX_PATH entry.
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override: default:
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let
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try = builtins.tryEval (builtins.findFile builtins.nixPath override);
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in if try.success then
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builtins.trace "using search host <${override}>" try.value
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else
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default
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