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Add setFunctionArgs lib function.

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Among other things, this will allow *2nix tools to output plain data
while still being composable with the traditional
callPackage/.override interfaces.
This commit is contained in:
Shea Levy
2018-01-31 14:02:19 -05:00
parent 0d7a0d7572
commit 943592f698
18 changed files with 60 additions and 33 deletions
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4
pkgs/development/haskell-modules/make-package-set.nix
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@@ -81,8 +81,8 @@ let
# lost on `.override`) but determine the auto-args based on `drv` (the problem here
# is that nix has no way to "passthrough" args while preserving the reflection
# info that callPackage uses to determine the arguments).
drv = if builtins.isFunction fn then fn else import fn;
auto = builtins.intersectAttrs (builtins.functionArgs drv) scope;
drv = if stdenv.lib.isFunction fn then fn else import fn;
auto = builtins.intersectAttrs (stdenv.lib.functionArgs drv) scope;
# this wraps the `drv` function to add a `overrideScope` function to the result.
drvScope = allArgs: drv allArgs // {