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Merge pull request #274192 from foo-dogsquared/nixos-guix-add-guix-home-support

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nixos/guix: add Guix home support
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Weijia Wang 2024-01-03 01:28:11 +01:00 committed by GitHub
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35
nixos/modules/services/misc/guix/default.nix
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@ -22,11 +22,19 @@ let
})
(builtins.genList guixBuildUser numberOfUsers));
# A set of Guix user profiles to be linked at activation.
# A set of Guix user profiles to be linked at activation. All of these should
# be default profiles managed by Guix CLI and the profiles are located in
# `${cfg.stateDir}/profiles/per-user/$USER/$PROFILE`.
guixUserProfiles = {
# The current Guix profile that is created through `guix pull`.
# The default Guix profile managed by `guix pull`. Take note this should be
# the profile with the most precedence in `PATH` env to let users use their
# updated versions of `guix` CLI.
"current-guix" = "\${XDG_CONFIG_HOME}/guix/current";
# The default Guix home profile. This profile contains more than exports
# such as an activation script at `$GUIX_HOME_PROFILE/activate`.
"guix-home" = "$HOME/.guix-home/profile";
# The default Guix profile similar to $HOME/.nix-profile from Nix.
"guix-profile" = "$HOME/.guix-profile";
};
@ -256,20 +264,31 @@ in
# ephemeral setups where only certain part of the filesystem is
# persistent (e.g., "Erase my darlings"-type of setup).
system.userActivationScripts.guix-activate-user-profiles.text = let
guixProfile = profile: "${cfg.stateDir}/guix/profiles/per-user/\${USER}/${profile}";
linkProfile = profile: location: let
userProfile = guixProfile profile;
in ''
[ -d "${userProfile}" ] && ln -sfn "${userProfile}" "${location}"
'';
linkProfileToPath = acc: profile: location: let
guixProfile = "${cfg.stateDir}/guix/profiles/per-user/\${USER}/${profile}";
in acc + ''
[ -d "${guixProfile}" ] && [ -L "${location}" ] || ln -sf "${guixProfile}" "${location}"
'';
in acc + (linkProfile profile location);
activationScript = lib.foldlAttrs linkProfileToPath "" guixUserProfiles;
# This should contain export-only Guix user profiles. The rest of it is
# handled manually in the activation script.
guixUserProfiles' = lib.attrsets.removeAttrs guixUserProfiles [ "guix-home" ];
linkExportsScript = lib.foldlAttrs linkProfileToPath "" guixUserProfiles';
in ''
# Don't export this please! It is only expected to be used for this
# activation script and nothing else.
XDG_CONFIG_HOME=''${XDG_CONFIG_HOME:-$HOME/.config}
# Linking the usual Guix profiles into the home directory.
${activationScript}
${linkExportsScript}
# Activate all of the default Guix non-exports profiles manually.
${linkProfile "guix-home" "$HOME/.guix-home"}
[ -L "$HOME/.guix-home" ] && "$HOME/.guix-home/activate"
'';
# GUIX_LOCPATH is basically LOCPATH but for Guix libc which in turn used by