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feat: aliases and custom snowfall root

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Jake Hamilton 2023-01-09 05:22:28 -08:00
parent d8a08681a9
commit cbe1b6e0fb
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9 changed files with 126 additions and 85 deletions
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22
lib/template/default.nix
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@ -5,19 +5,20 @@
let
inherit (builtins) baseNameOf;
inherit (core-inputs.nixpkgs.lib) assertMsg foldl;
inherit (core-inputs.nixpkgs.lib) assertMsg foldl mapAttrs;
user-templates-root = snowfall-lib.fs.get-file "templates";
user-templates-root = snowfall-lib.fs.get-snowfall-file "templates";
in
{
template = {
# Create flake templates.
# Type: Attrs -> Attrs
# Usage: create-templates { src = ./my-templates; overrides = { inherit another-template; default = "my-template"; }; }
# Usage: create-templates { src = ./my-templates; overrides = { inherit another-template; }; alias = { default = "another-template"; }; }
# result: { another-template = ...; my-template = ...; default = ...; }
create-templates =
{ src ? user-templates-root
, overrides ? { }
, alias ? { }
}:
let
user-templates = snowfall-lib.fs.get-directories src;
@ -32,18 +33,9 @@ in
inherit (metadata) path;
};
};
templates-without-default = foldl merge-templates { } templates-metadata;
default-template =
if overrides.default or null == null then
{ }
else if builtins.isAttrs overrides.default then
{ default = overrides.default; }
else if templates-without-default.${overrides.default} or null != null then
{ default = templates-without-default.${overrides.default}; }
else
{ };
overrides-without-default = builtins.removeAttrs overrides [ "default" ];
templates = templates-without-default // default-template // overrides-without-default;
templates-without-aliases = foldl merge-templates { } templates-metadata;
aliased-templates = mapAttrs (name: value: templates-without-aliases.${value}) alias;
templates = templates-without-aliases // aliased-templates // overrides;
in
templates;
};