Fix Void package lifecycle on host

packaging/xbps/remove.sh

@@ -1,33 +1,29 @@
 #!/bin/sh
-# XBPS REMOVE script — pre-remove and purge paths.
+# XBPS REMOVE script — pre-remove path.
 #
 # Arguments: $1=ACTION $2=PKGNAME $3=VERSION $4=UPDATE $5=CONF_FILE $6=ARCH
 #
-# Actions: pre (before files removed), post (after files removed),
-#          purge (after metadata removed, for config cleanup)
+# Actions: pre (before files removed)
 set -eu
 
 ACTION="$1"
-
+UPDATE="$4"
 case "${ACTION}" in
     pre)
-        # Sanctioned disable — close monitoring period
-        if [ -x /usr/libexec/fenris/fenris-monitor ]; then
-            /usr/libexec/fenris/fenris-monitor disable --now 2>/dev/null || true
+        # Only a real erase is a sanctioned disable.  An upgrade must preserve
+        # both monitoring intent and the active runit service.
+        if [ "${UPDATE}" = "no" ]; then
+            # Close the monitoring period while the store is still available.
+            if [ -x /usr/libexec/fenris/fenris-monitor ]; then
+                /usr/libexec/fenris/fenris-monitor disable --now 2>/dev/null || true
+            fi
+            # Configuration and the observation store are deliberately not
+            # package-owned.  Leave them in place: XBPS does not guarantee a
+            # post-remove callback before its cleanup action.
+            # runit: remove the service symlink and mark dormant
+            rm -f /var/service/fenris-collect
+            touch /etc/sv/fenris-collect/down 2>/dev/null || true
         fi
-        # runit: remove the service symlink and mark dormant
-        rm -f /var/service/fenris-collect
-        touch /etc/sv/fenris-collect/down 2>/dev/null || true
-        ;;
-    purge)
-        # Full cleanup — remove config, store, and runit service directories
-        rm -rf /etc/fenris
-        rm -rf /var/lib/fenris
-        if getent group fenris > /dev/null 2>&1; then
-            groupdel fenris 2>/dev/null || true
-        fi
-        rm -rf /etc/sv/fenris-collect 2>/dev/null || true
-        rm -rf /var/log/fenris-collect 2>/dev/null || true
         ;;
 esac