73 lines
2.1 KiB
Nix
73 lines
2.1 KiB
Nix
# # Copyright 2025-2026 _cry64 (Emile Clark-Boman)
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# #
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# # Licensed under the Apache License, Version 2.0 (the "License");
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# # you may not use this file except in compliance with the License.
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# # You may obtain a copy of the License at
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# #
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# # http://www.apache.org/licenses/LICENSE-2.0
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# #
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# # Unless required by applicable law or agreed to in writing, software
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# # distributed under the License is distributed on an "AS IS" BASIS,
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# # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# # See the License for the specific language governing permissions and
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# # limitations under the License.
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{nt, ...}: let
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inherit
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(builtins)
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concatLists
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elem
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filter
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isAttrs
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mapAttrs
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pathExists
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typeOf
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;
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rootGroupName = "all";
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in {
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parseGroupsDecl = groups: let
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validGroup = g:
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isAttrs g
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|| throw ''
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Snow node groups must be provided as attribute sets, got "${typeOf g}" instead!
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Ensure all the group definitions are attribute sets under your call to `snow.flake`.
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NOTE: Groups can be accessed via `self.groups.PATH.TO.YOUR.GROUP`
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'';
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delegate = parent: gName: g: let
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result =
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(g
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// {
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_name = gName;
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_parent = parent;
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})
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|> mapAttrs (name: value:
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if elem name ["_name" "_parent"]
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# ignore metadata fields
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then value
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else assert validGroup value; (delegate result name value));
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in
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result;
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in
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assert validGroup groups;
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delegate null rootGroupName groups;
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getGroupModules = root: groups:
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# ensure root group is always added
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groups
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# add all inherited groups via _parent
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|> map (let
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delegate = g:
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if g._parent == null
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then [g]
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else [g] ++ delegate (g._parent);
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in
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delegate)
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# flatten recursion result
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|> concatLists
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# find import location
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|> map (group: nt.findImport /${root}/groups/${group._name})
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# filter by uniqueness
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|> nt.prim.unique
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# ignore missing groups
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|> filter pathExists;
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}
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