34 lines
954 B
Nix
34 lines
954 B
Nix
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{ config, lib, ... }:
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let
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cfg = config.my.fs;
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in {
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config = lib.mkIf (cfg.type == "btrfs") {
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fileSystems = builtins.mapAttrs (_: options: {
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inherit (cfg) device;
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fsType = "btrfs";
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options = [ "noatime" "space_cache=v2" "compress=zstd:9" ]
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++ options
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++ lib.optional config.services.fstrim.enable "nodiscard";
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}) ({
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"/" = [ "subvol=root" ];
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"/nix" = [ "subvol=nix" ];
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"/home" = [ "subvol=home" ];
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} // lib.optionalAttrs cfg.snapshots {
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"/home/${config.my.user.username}/.cache" = [ "subvol=misc/cache" ];
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"/home/${config.my.user.username}/no-snapshot" = [ "subvol=misc/other" ];
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});
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services = {
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snapper = lib.mkIf cfg.snapshots {
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configs.home = {
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SUBVOLUME = "/home";
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ALLOW_USERS = [ config.my.user.username ];
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TIMELINE_CREATE = true;
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TIMELINE_CLEANUP = true;
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};
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};
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};
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};
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}
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