2023-12-12 14:32:06 +01:00
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# 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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{ lib, inputs, config, ... }: {
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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) [
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(config.users.users.adrielus or null)
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(config.users.users.guest or null)
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];
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mkHomePersistFor = location: lib.forEach users
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(user: "Q ${location}${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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