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Fix bugs

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Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>
This commit is contained in:
Nick Karaolidis
2024-12-18 23:29:49 +00:00
parent e23e71560f
commit bcad2979bf
10 changed files with 146 additions and 117 deletions
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1
hosts/common/system/configs/impermanence/default.nix
View File

@@ -19,6 +19,7 @@
after = [ "cryptsetup.target" ];
unitConfig.DefaultDependencies = false;
serviceConfig.Type = "oneshot";
environment.DEVICE = config.environment.impermanence.device;
script = builtins.readFile ./scripts/wipe.sh;
};
};

225
hosts/common/system/configs/impermanence/options.nix
View File

@@ -43,125 +43,136 @@ let
) [ ] parents;
in
{
options.environment.persistence =
options.environment =
with lib;
with types;
let
isPathLike = strings.hasPrefix "/";
in
mkOption {
type = (
addCheck (attrsOf (
attrsOf (
submodule (
{ name, config, ... }:
{
options = {
enable = mkOption {
type = bool;
default = true;
description = "Whether to enable the item.";
};
{
impermanence.device = mkOption {
type = str;
default = config.disko.devices.disk.main.content.partitions.root.content.name;
description = ''
LUKS BTRFS partition to wipe on boot.
'';
};
service = mkOption {
type = str;
readOnly = true;
description = ''
Systemd service that prepares and syncs the item.
Can be used as a dependency in other units.
'';
};
persistence =
let
isPathLike = strings.hasPrefix "/";
in
mkOption {
type = (
addCheck (attrsOf (
attrsOf (
submodule (
{ name, config, ... }:
{
options = {
enable = mkOption {
type = bool;
default = true;
description = "Whether to enable the item.";
};
mount = mkOption {
type = str;
readOnly = true;
description = ''
Systemd mount that binds the item.
Can be used as a dependency in other units.
'';
};
service = mkOption {
type = str;
readOnly = true;
description = ''
Systemd service that prepares and syncs the item.
Can be used as a dependency in other units.
'';
};
_path = mkOption {
type = str;
internal = true;
default = name;
};
mount = mkOption {
type = str;
readOnly = true;
description = ''
Systemd mount that binds the item.
Can be used as a dependency in other units.
'';
};
_sourceRoot = mkOption {
type = str;
internal = true;
};
_path = mkOption {
type = str;
internal = true;
default = name;
};
_source = mkOption {
type = str;
internal = true;
};
_sourceRoot = mkOption {
type = str;
internal = true;
};
_targetRoot = mkOption {
type = str;
internal = true;
};
_source = mkOption {
type = str;
internal = true;
};
_target = mkOption {
type = str;
internal = true;
};
};
}
)
)
)) (attrs: lists.all isPathLike (builtins.attrNames attrs))
);
apply =
ps:
builtins.mapAttrs (
persistence: items:
builtins.mapAttrs (
_: config:
let
_path = config._path;
_targetRoot = mkOption {
type = str;
internal = true;
};
_sourceRoot = persistence;
_source = mergePaths [
_sourceRoot
_path
];
_targetRoot =
_target = mkOption {
type = str;
internal = true;
};
};
}
)
)
)) (attrs: lists.all isPathLike (builtins.attrNames attrs))
);
apply =
ps:
builtins.mapAttrs (
persistence: items:
builtins.mapAttrs (
_: config:
let
parents = lists.reverseList (parentsOf _path);
in
lists.foldl' (
acc: parent:
if acc == "/" then
lists.findFirst (
otherPersistence: lists.any (other: parent == other) (builtins.attrNames ps.${otherPersistence})
) "/" (builtins.attrNames ps)
else
acc
) "/" parents;
_path = config._path;
_target = mergePaths [
_targetRoot
_path
];
in
config
// {
inherit
_sourceRoot
_source
_targetRoot
_target
;
service = "${utils.escapeSystemdPath _target}.service";
mount = "${utils.escapeSystemdPath _target}.mount";
}
) items
) ps;
default = { };
description = "Persistence config.";
_sourceRoot = persistence;
_source = mergePaths [
_sourceRoot
_path
];
_targetRoot =
let
parents = lists.reverseList (parentsOf _path);
in
lists.foldl' (
acc: parent:
if acc == "/" then
lists.findFirst (
otherPersistence: lists.any (other: parent == other) (builtins.attrNames ps.${otherPersistence})
) "/" (builtins.attrNames ps)
else
acc
) "/" parents;
_target = mergePaths [
_targetRoot
_path
];
in
config
// {
inherit
_sourceRoot
_source
_targetRoot
_target
;
service = "${utils.escapeSystemdPath _target}.service";
mount = "${utils.escapeSystemdPath _target}.mount";
}
) items
) ps;
default = { };
description = "Persistence config.";
};
};
config =

7
hosts/common/system/configs/impermanence/scripts/wipe.sh
View File

@@ -6,8 +6,13 @@ delete_subvolume_recursively() {
btrfs subvolume delete "$1"
}
if [[ -z "$DEVICE" ]]; then
echo "Error: DEVICE variable is not set."
exit 1
fi
mkdir -p /mnt/btrfs
mount /dev/mapper/luks /mnt/btrfs
mount "/dev/mapper/$DEVICE" /mnt/btrfs
if [[ -e /mnt/btrfs/@ ]]; then
mkdir -p /mnt/btrfs/@.bak