kylekrein/snowfall-lib
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

wip: initial frost support

Browse source
This commit is contained in:
Jake Hamilton 2023-08-16 23:46:29 -07:00
parent 6b09a4b7b5
commit 116971f60d
No known key found for this signature in database
GPG key ID: 9762169A1B35EA68
18 changed files with 91 additions and 30 deletions
Download patch file Download diff file Expand all files Collapse all files

179
snowfall-lib/overlay/default.nix Normal file
View file

@ -0,0 +1,179 @@
{ core-inputs
, user-inputs
, snowfall-lib
, snowfall-config
}:
let
inherit (core-inputs.nixpkgs.lib) assertMsg foldl concatStringsSep;
user-overlays-root = snowfall-lib.fs.get-snowfall-file "overlays";
user-packages-root = snowfall-lib.fs.get-snowfall-file "packages";
in
{
overlay = {
# Create a flake-utils-plus overlays builder.
# Type: Attrs -> Attrs -> [(a -> b -> c)]
# Usage: create-overlays { src = ./my-overlays; package-namespace = "my-packages"; }
# result: (channels: [ ... ])
create-overlays-builder =
{ src ? user-overlays-root
, package-namespace ? "internal"
, extra-overlays ? [ ]
}: channels:
let
user-overlays = snowfall-lib.fs.get-default-nix-files-recursive src;
create-overlay = overlay: import overlay (user-inputs // { inherit channels; });
user-packages-overlay = final: prev:
let
user-packages = snowfall-lib.package.create-packages {
pkgs = final;
channels = channels;
};
in
{
${package-namespace} =
(prev.${package-namespace} or { })
// user-packages;
};
overlays =
[ user-packages-overlay ] ++ extra-overlays ++ (builtins.map create-overlay user-overlays);
in
overlays;
# Create exported overlays from the user flake.
# Adapted from flake-utils-plus:
# https://github.com/gytis-ivaskevicius/flake-utils-plus/blob/2bf0f91643c2e5ae38c1b26893ac2927ac9bd82a/lib/exportOverlays.nix
# Type: Attrs -> Attrs
# Usage: create-overlays { src = ./my-overlays; packages-src = ./my-packages; package-namespace = "my-namespace"; extra-overlays = {}; }
# result: { default = final: prev: ...; some-overlay = final: prev: ...; }
create-overlays =
{ src ? user-overlays-root
, packages-src ? user-packages-root
, package-namespace ? null
, extra-overlays ? { }
}:
let
fake-pkgs = {
callPackage = x: x;
isFakePkgs = true;
lib = { };
system = "fake-system";
};
user-overlays = snowfall-lib.fs.get-default-nix-files-recursive src;
channel-systems = user-inputs.self.pkgs;
user-packages-overlay = final: prev:
let
user-packages = snowfall-lib.package.create-packages {
pkgs = final;
channels = channel-systems.${prev.system};
};
in
if package-namespace == null then
user-packages
else
{
${package-namespace} =
(prev.${package-namespace} or { })
// user-packages;
};
create-overlay = (overlays: file:
let
name = builtins.unsafeDiscardStringContext (snowfall-lib.path.get-parent-directory file);
overlay = final: prev:
let
channels = channel-systems.${prev.system};
user-overlay = import file (user-inputs // { inherit channels; });
packages = user-packages-overlay final prev;
prev-with-packages =
if package-namespace == null then
prev // packages
else
prev // {
${package-namespace} =
(prev.${package-namespace} or { })
// packages.${package-namespace};
};
user-overlay-packages =
user-overlay
final
prev-with-packages;
outputs =
user-overlay-packages;
in
if user-overlay-packages.__dontExport or false == true then
outputs // { __dontExport = true; }
else
outputs;
fake-overlay-result = overlay fake-pkgs fake-pkgs;
in
if fake-overlay-result.__dontExport or false == true then
overlays
else
overlays // {
${name} = overlay;
}
);
overlays =
foldl
create-overlay
{ }
user-overlays;
user-packages = snowfall-lib.fs.get-default-nix-files-recursive packages-src;
create-package-overlay = package-overlays: file:
let
name = builtins.unsafeDiscardStringContext (snowfall-lib.path.get-parent-directory file);
overlay = final: prev:
let
channels = channel-systems.${prev.system};
packages = snowfall-lib.package.create-packages {
channels = channel-systems.${prev.system};
};
in
if package-namespace == null then
{ ${name} = packages.${name}; }
else
{
${package-namespace} =
(prev.${package-namespace} or { })
// { ${name} = packages.${name}; };
};
in
package-overlays //
{
"package/${name}" = overlay;
};
package-overlays =
foldl
create-package-overlay
{ }
user-packages;
default-overlay = final: prev:
let
overlays-list = builtins.attrValues overlays;
package-overlays-list = builtins.attrValues package-overlays;
overlays-results = builtins.map (overlay: overlay final prev) overlays-list;
package-overlays-results = builtins.map (overlay: overlay final prev) package-overlays-list;
merged-results = snowfall-lib.attrs.merge-shallow-packages
(package-overlays-results ++ overlays-results);
in
merged-results;
in
package-overlays
// overlays
// { default = default-overlay; }
// extra-overlays;
};
}