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lib: eachSystem: inline single-use local variables

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Inline single-use local variables to minimize cognitive load while
reading the code, unless they cache computational results.
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NAHO 2024-09-11 19:45:32 +02:00
parent 274ed073aa
commit ce5c962a8c
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1 changed files with 27 additions and 26 deletions
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17
lib.nix
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@ -29,24 +29,25 @@ let
# Builds a map from <attr>=value to <attr>.<system>=value for each system. # Builds a map from <attr>=value to <attr>.<system>=value for each system.
eachSystem = eachSystem =
systems: f: systems: f:
let builtins.foldl'
(
# Merge outputs for each system. # Merge outputs for each system.
op =
attrs: system: attrs: system:
let let
ret = f system; ret = f system;
op = in
builtins.foldl' (
attrs: key: attrs: key:
attrs attrs
// { // {
${key} = (attrs.${key} or { }) // { ${key} = (attrs.${key} or { }) // {
${system} = ret.${key}; ${system} = ret.${key};
}; };
}; }
in ) attrs (builtins.attrNames ret)
builtins.foldl' op attrs (builtins.attrNames ret); )
in { }
builtins.foldl' op { } ( (
systems systems
++ ++
# Add the current system if the --impure flag is used. # Add the current system if the --impure flag is used.