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Jonas Rabenstein 2025-01-05 16:35:55 +01:00
commit 5679c003d8
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lib/scan.nix Normal file
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{ base, convert ? name: value: value, recursive ? false }:
let
scan = sub: let
all = builtins.readDir (base + "/${builtins.concatStringsSep "/" sub}");
names = filter: builtins.filter filter (builtins.attrNames all);
nix = name: all.${name} == "regular" && builtins.stringLength name > 4 && builtins.substring (builtins.stringLength name - 4) 4 name == ".nix";
dir = name: all.${name} == "directory";
files = map (name: sub ++ [ (builtins.substring 0 (builtins.stringLength name - 4) name) ]) (names nix);
dirs = builtins.concatLists (map (name: scan (sub ++ [name])) (names dir));
in if recursive then files ++ dirs else files;
root = scan [];
item = relative: let
name = builtins.concatStringsSep "/" relative;
absolute = base + "/${name}.nix";
content = import absolute;
value = convert name content;
in { inherit name value; };
items = map item root;
in if builtins.pathExists base then builtins.listToAttrs (map item root) else {}