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home-manager/tests/modules/misc/nix/example-channels.nix
midchildan 8d5e27b480
nix: add a declarative alternative to Nix channels (#4031)
* nix: add options 'nixPath' and 'keepOldNixPath'

By default, the system value for $NIX_PATH is kept as a fallback.
To completely override the system value for $NIX_PATH:

    nix.keepOldNixPath = false;

* nix: add more tests

* nix: add a declarative alternative to Nix channels

This adds a new option, 'nix.channels'. It's the Nix channels equivalent
of the 'nix.registry' option, and compatible with pre-Flake Nix tooling
including nix-env and nix-shell. Like 'nix.registry', this option is
useful for pinning Nix channels.

Channels defined in the new option can coexist with channels introduced
through the nix-channel command. If the same channel exists in both, the
one from Home Manager will be prioritized.

* nix: add news entry

* nix: make channels respect use-xdg-base-directories

* nix: remove 'with lib;'

---------

Co-authored-by: Michael Hoang <enzime@users.noreply.github.com>
2024-06-13 01:47:38 +00:00

26 lines
640 B
Nix

{ config, pkgs, ... }:
let
exampleChannel = pkgs.writeTextDir "default.nix" ''
{ pkgs ? import <nixpkgs> { } }:
{
example = pkgs.emptyDirectory;
}
'';
in {
config = {
nix = {
package = config.lib.test.mkStubPackage { };
channels.example = exampleChannel;
};
nmt.script = ''
assertFileContains home-path/etc/profile.d/hm-session-vars.sh \
'export NIX_PATH="/home/hm-user/.nix-defexpr/50-home-manager''${NIX_PATH:+:$NIX_PATH}"'
assertFileContent \
home-files/.nix-defexpr/50-home-manager/example/default.nix \
${exampleChannel}/default.nix
'';
};
}