43 lines
1.2 KiB
Nix
43 lines
1.2 KiB
Nix
# This file defines the "non-hardware dependent" part of opt-in persistence
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# It imports impermanence, defines the basic persisted dirs, and ensures each
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# users' home persist dir exists and has the right permissions
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#
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# It works even if / is tmpfs, btrfs snapshot, or even not ephemeral at all.
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{
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lib,
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inputs,
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config,
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...
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}:
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{
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imports = [ inputs.impermanence.nixosModules.impermanence ];
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environment.persistence."/persist/state".directories = [
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"/var/lib/systemd"
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"/var/lib/nixos"
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"/var/log"
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];
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# Allow non root users to specify the "allowOther" option.
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# See [the imperanence readme](https://github.com/nix-community/impermanence#home-manager)
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programs.fuse.userAllowOther = true;
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# {{{ Create home directories
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systemd.tmpfiles.rules =
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let
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users = lib.filter (v: v != null && v.isNormalUser) (
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lib.mapAttrsToList (_: u: u) config.users.users
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);
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mkHomePersistFor =
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location:
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lib.forEach users (user: "d ${location}${user.home} ${user.homeMode} ${user.name} ${user.group} -");
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in
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lib.flatten [
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(mkHomePersistFor "/persist/data")
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(mkHomePersistFor "/persist/state")
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(mkHomePersistFor "/persist/local/cache")
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];
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# }}}
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}
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