feat: ✨ add cleaning facilities

install.fish

@@ -4,3 +4,6 @@ echo "installed creation script."
 
 cp ./pacman/* /usr/share/libalpm/hooks/
 echo "installed pacman hooks."
+
+cp ./systemd/* /etc/systemd/system/
+echo "installed systemd unit files"

src/snap-pac-uki.fish

@@ -151,6 +151,19 @@ function main
             cp "$CFG_BUILD_DIR/current/arch-linux-fallback.efi" "$CFG_UKI_DIR"
             echo "  -> copied ukis into uki directory"
 
+        case "clean"
+            echo "==> cleaning ukis"
+
+            set ids (snapper -c $CFG_SNAPSHOT_CONFIG --jsonout ls | jq ".$CFG_SNAPSHOT_CONFIG [] | .number")
+            for uki in (ls "$CFG_UKI_DIR" | rg "[0-9]" | sed "s/arch-linux-\([0-9]*\).efi/\1/")
+                if not contains "$uki" $ids
+                    echo "  -> cleaning uki and boot entry for removed snapshot $uki"
+                    rm "$CFG_UKI_DIR/arch-linux-$uki.efi"
+
+                    efibootmgr -q -b (efibootmgr -v | rg "arch-linux-$uki.efi" | sed "s/\*//;s/Boot0*\(.*\) Arch .*/\1/") -B
+                end
+            end
+
         case "*"
             error "unknown command"
     end

systemd/snap-pac-uki-cleanup.service

@@ -0,0 +1,6 @@
+[Unit]
+Description=cleaning up ukis
+
+[Service]
+Type=oneshot
+ExecStart=/usr/local/bin/snap-pac-uki clean

systemd/snap-pac-uki-cleanup.timer

@@ -0,0 +1,9 @@
+[Unit]
+Description="timer for triggering uki cleanup
+
+[Timer]
+OnBootSec=15min
+OnUnitActiveSec=1d
+
+[Install]
+WantedBy=timers.target