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make makeOverridable noop for functions like a: b: c(a, b) 

svn path=/nixpkgs/trunk/; revision=23262
This commit is contained in:
Yury G. Kudryashov 2010-08-19 22:52:53 +00:00
parent e16427a899
commit 9e4202d273
1 changed files with 11 additions and 7 deletions
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18
pkgs/lib/customisation.nix
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@ -49,13 +49,17 @@ rec {
# let d = makeOverridable stdenv.mkDerivation { name = ..; buildInputs; }
# noBuildInputs = d.override { buildInputs = []; }
# additionalBuildInputs = d.override ( args : args // { buildInputs = args.buildInputs ++ [ additional ]; } )
makeOverridable = f: origArgs: f origArgs //
{ override = newArgs:
makeOverridable f (origArgs // (if builtins.isFunction newArgs then newArgs origArgs else newArgs));
deepOverride = newArgs:
makeOverridable f (lib.overrideExisting (lib.mapAttrs (deepOverrider newArgs) origArgs) newArgs);
#origArgs = origArgs;
};
makeOverridable = f: origArgs:
let
ff = f origArgs;
in
if builtins.isAttrs ff then (ff //
{ override = newArgs:
makeOverridable f (origArgs // (if builtins.isFunction newArgs then newArgs origArgs else newArgs));
deepOverride = newArgs:
makeOverridable f (lib.overrideExisting (lib.mapAttrs (deepOverrider newArgs) origArgs) newArgs);
})
else ff;
deepOverrider = newArgs: name: x: if builtins.isAttrs x then (
if x ? deepOverride then (x.deepOverride newArgs) else