Modular, context-aware and aspect-oriented dendritic Nix configurations.
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configurations
den
dendritic
nix
aspect
oriented
Rename `parametric.context` to `parametric.fixedTo` (#85)
to be more precise about it providing a fixed context to all its
included functions.
authored by
GitHub
74b6ece6
bab28b55
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nix/lib.nix
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nix/lib.nix
···
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parametric.atLeast = funk (lib.flip take.atLeast);
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parametric.exactly = funk (lib.flip take.exactly);
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parametric.context = lib.flip parametric.atLeast;
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parametric.fixedTo = lib.flip parametric.atLeast;
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parametric.expands = attrs: funk (ctx: (lib.flip take.atLeast) (ctx // attrs));
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parametric.__functor =
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self: ctx:
···
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else if isFn ctx then
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funk ctx
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else
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self.context ctx;
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self.fixedTo ctx;
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aspects = inputs.flake-aspects.lib lib;
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templates/default/modules/aspects/eg/routes.nix
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templates/default/modules/aspects/eg/routes.nix
···
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# This example implements an aspect "routing" pattern.
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#
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# Unlike `den.default` which is `parametric.atLeast` we use `parametric.exactly` here
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# to be more strict and prevent multiple values inclusion.
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# Unlike `den.default` which is `parametric.atLeast`
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# we use `parametric.fixedTo` here, which help us
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# propagate an already computed context to all includes.
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#
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# This aspect, when installed in a `parametric.atLeast`
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# will just forward the same context.
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# The `mutual` helper returns an static configuration which
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# is ignored by parametric aspects, thus allowing
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# non-existing aspects to be just ignored.
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#
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# Be sure to read: https://vic.github.io/den/dependencies.html
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# See usage at: defaults.nix, alice.nix, igloo.nix
···
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routes =
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{ host, user, ... }@ctx:
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{
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__functor = parametric ctx;
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__functor = parametric.fixedTo ctx;
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includes = [
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(mutual user host)
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(mutual host user)