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pkgs/overlays/unstable-latest: init

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this reuses code that was removed in 77ef7434f2
This commit is contained in:
Wroclaw 2025-02-09 08:23:49 +01:00
parent 5d9f3332b8
commit ec91266fcd
3 changed files with 28 additions and 1 deletions
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3
pkgs/overlays/unstable-from-source.nix
View file

@ -1,5 +1,6 @@
{
unstableSource,
attributeName ? "unstable",
}:
self: super:
@ -32,5 +33,5 @@ let
});
in
{
unstable = if useUnstable then unstablePkgsForNixpkgs self else self;
"${attributeName}" = if useUnstable then unstablePkgsForNixpkgs self else self;
}

25
pkgs/overlays/unstable-latest.nix Normal file
View file

@ -0,0 +1,25 @@
self: super:
let
nixos = self.config.unstable-latest.nixos or true;
useUnstable = self.config.useUnstable or true;
unstablePkgsExprs = if nixos
then builtins.fetchTarball "https://channels.nixos.org/nixos-unstable/nixexprs.tar.xz"
else builtins.fetchTarball "https://channels.nixos.org/nixpkgs-unstable/nixexprs.tar.xz";
# Compiled nixpkgs expression eg expressions from a nix channel
nixpkgsVersion = builtins.concatStringsSep "." [
(builtins.readFile "${unstablePkgsExprs}/.version")
(builtins.readFile "${unstablePkgsExprs}/.version-suffix")
];
nixpkgsRevision = (builtins.readFile "${unstablePkgsExprs}/.git-revision");
in
import ./unstable-from-source.nix {
unstableSource = unstablePkgsExprs;
attributeName = "unstable-latest";
} self super // {
unstableLatestVersion = if !useUnstable then null else nixpkgsVersion;
unstableLatestRevision = if !useUnstable then null else nixpkgsRevision;
}