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modules.system.fileSystems.rollingRootfs: delete unused options

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陈浩南
2025-01-12 16:04:45 +08:00
parent c391505ccc
commit b45ac8995c
1 changed files with 11 additions and 12 deletions
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23
modules/system/fileSystems/default.nix
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@@ -25,8 +25,6 @@ inputs:
{
type = types.nullOr (types.submodule { options =
{
device = mkOption { type = types.nonEmptyStr; default = inputs.config.fileSystems."/".device; };
path = mkOption { type = types.nonEmptyStr; default = "/nix/rootfs"; };
waitDevices = mkOption { type = types.listOf types.nonEmptyStr; default = []; };
};});
default = null;
@@ -113,24 +111,25 @@ inputs:
serviceConfig.Type = "oneshot";
script =
let
inherit (fileSystems.rollingRootfs) device path waitDevices;
device = inputs.config.fileSystems."/".device;
waitDevice = builtins.concatStringsSep "\n" (builtins.map
(device: "while ! [ -e ${device} ]; do sleep 1; done") (waitDevices ++ [ device ]));
(device: "while ! [ -e ${device} ]; do sleep 1; done")
(fileSystems.rollingRootfs.waitDevices ++ [ device ]));
in
''
while ! lsmod | grep -q btrfs; do sleep 1; done
${waitDevice}
mount ${device} /mnt -m
if [ -f /mnt${path}/current/.timestamp ]
if [ -f /mnt/nix/rootfs/current/.timestamp ]
then
timestamp=$(cat /mnt${path}/current/.timestamp)
subvolid=$(btrfs subvolume show /mnt${path}/current | grep 'Subvolume ID:' | awk '{print $NF}')
mv /mnt${path}/current /mnt${path}/$timestamp-$subvolid
btrfs property set -ts /mnt${path}/$timestamp-$subvolid ro true
timestamp=$(cat /mnt/nix/rootfs/current/.timestamp)
subvolid=$(btrfs subvolume show /mnt/nix/rootfs/current | grep 'Subvolume ID:' | awk '{print $NF}')
mv /mnt/nix/rootfs/current /mnt/nix/rootfs/$timestamp-$subvolid
btrfs property set -ts /mnt/nix/rootfs/$timestamp-$subvolid ro true
fi
btrfs subvolume create /mnt${path}/current
chattr +C /mnt${path}/current
echo $(date '+%Y%m%d%H%M%S') > /mnt${path}/current/.timestamp
[ -d /mnt/nix/rootfs/current ] || btrfs subvolume create /mnt/nix/rootfs/current
chattr +C /mnt/nix/rootfs/current
echo $(date '+%Y%m%d%H%M%S') > /mnt/nix/rootfs/current/.timestamp
umount /mnt
'';
};