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rustboro: delete old roots after 5 days

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Aly Raffauf 2024-04-02 10:31:45 -04:00
parent b87a96d1f1
commit 855cdfa312
1 changed files with 15 additions and 25 deletions
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40
hosts/rustboro/default.nix
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@ -14,37 +14,27 @@
loader.systemd-boot.enable = true; loader.systemd-boot.enable = true;
loader.efi.canTouchEfiVariables = true; loader.efi.canTouchEfiVariables = true;
# initrd.postDeviceCommands = lib.mkAfter ''
# mkdir /btrfs_tmp
# mount /dev/sda2 /btrfs_tmp
# if [[ -e /btrfs_tmp/rootfs ]]; then
# mkdir -p /btrfs_tmp/old_roots
# timestamp=$(date --date="@$(stat -c %Y /btrfs_tmp/rootfs)" "+%Y-%m-%-d_%H:%M:%S")
# mv /btrfs_tmp/rootfs "/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"
# done
# btrfs subvolume delete "$1"
# }
# for i in $(find /btrfs_tmp/old_roots/ -maxdepth 1 -mtime +10); do
# delete_subvolume_recursively "$i"
# done
# btrfs subvolume create /btrfs_tmp/rootfs
# umount /btrfs_tmp
# '';
initrd.postDeviceCommands = lib.mkAfter '' initrd.postDeviceCommands = lib.mkAfter ''
mkdir /btrfs_tmp mkdir /btrfs_tmp
mount /dev/sda2 /btrfs_tmp mount /dev/sda2 /btrfs_tmp
if [[ -e /btrfs_tmp/rootfs ]]; then if [[ -e /btrfs_tmp/rootfs ]]; then
btrfs subvolume delete /btrfs_tmp/rootfs mkdir -p /btrfs_tmp/old_roots
timestamp=$(date --date="@$(stat -c %Y /btrfs_tmp/rootfs)" "+%Y-%m-%-d_%H:%M:%S")
mv /btrfs_tmp/rootfs "/btrfs_tmp/old_roots/$timestamp"
fi fi
delete_subvolume_recursively() {
IFS=$'\n'
for i in $(btrfs subvolume list -o "$1" | cut -f 9- -d ' '); do
delete_subvolume_recursively "/btrfs_tmp/$i"
done
btrfs subvolume delete "$1"
}
for i in $(find /btrfs_tmp/old_roots/ -maxdepth 1 -mtime +5); do
delete_subvolume_recursively "$i"
done
btrfs subvolume create /btrfs_tmp/rootfs btrfs subvolume create /btrfs_tmp/rootfs
umount /btrfs_tmp umount /btrfs_tmp
''; '';