darkkirb/nixos-config
1
0
Fork 0
Code Issues 1 Pull requests 2 Projects Releases Packages Wiki Activity Actions

WIP: rewrite config #618

Draft
darkkirb wants to merge 387 commits from rewrite into main
pull from: rewrite
merge into: darkkirb:main
Conversation 0 Commits 387 Files changed 548 +35 -21
2 changed files with 35 additions and 21 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files
Showing only changes of commit a87baa94a0 - Show all commits

1
config/default.nix
View file

@ -4,4 +4,5 @@
"${nixos-config}/services/tailscale.nix"
./systemd-boot.nix
];
boot.initrd.systemd.enable = true;
}

55
modules/environment/impermanence.nix
View file

@ -17,30 +17,43 @@ with lib; {
environment.impermanence = mkDefault (!config.boot.isContainer && !inTester);
}
(mkIf config.environment.impermanence {
boot.initrd.postDeviceCommands = mkAfter ''
mkdir /btrfs_tmp
mount ${config.fileSystems."/".device} -t btrfs /btrfs_tmp
if [[ -e /btrfs_tmp/root ]]; then
mkdir -p /btrfs_tmp/old_roots
timestamp=$(date --date="@$(stat -c %Y /btrfs_tmp/root)" "+%Y-%m-%-d_%H:%M:%S")
mv /btrfs_tmp/root "/btrfs_tmp/old_roots/$timestamp
fi
boot.initrd.systemd.services.rootfs-cleanup = {
wantedBy = [
"initrd.target"
];
after = [
"initrd-root-device.target"
];
before = [
"sysroot.mount"
];
unitConfig.DefaultDependencies = "no";
serviceConfig.Type = "oneshot";
script = ''
mkdir /btrfs_tmp
mount ${config.fileSystems."/".device} -t btrfs /btrfs_tmp
if [[ -e /btrfs_tmp/root ]]; then
mkdir -p /btrfs_tmp/old_roots
timestamp=$(date --date="@$(stat -c %Y /btrfs_tmp/root)" "+%Y-%m-%-d_%H:%M:%S")
mv /btrfs_tmp/root "/btrfs_tmp/old_roots/$timestamp
fi
delete_subvolume_recursively() {
IFS=$'\n'
for i in $(btrfs subvolume list -o "$1" | cut -f 9- -d ' '); do
delete_subvolume_recursively "/btrfs_tmp/$i"
delete_subvolume_recursively() {
IFS=$'\n'
for i in $(btrfs subvolume list -o "$1" | cut -f 9- -d ' '); do
delete_subvolume_recursively "/btrfs_tmp/$i"
done
btrfs subvolume delete "$1"
}
for i in $(find /btrfs_tmp/old_roots/ -maxdepth 1 -mtime +30); do
delete_subvolume_recursively "$i"
done
btrfs subvolume delete "$1"
}
for i in $(find /btrfs_tmp/old_roots/ -maxdepth 1 -mtime +30); do
delete_subvolume_recursively "$i"
done
btrfs subvolume create /btrfs_tmp/root
umount /btrfs_tmp
'';
btrfs subvolume create /btrfs_tmp/root
umount /btrfs_tmp
'';
};
assertions = [
{
assertion = hasAttr "/" config.fileSystems;