various improvements

packaging/completion.bash

@@ -0,0 +1,14 @@
+_cmp_get_domains()
+{
+    for file in /etc/libvirt/qemu/*.xml; do
+        nodir="${file##*/}"
+        printf '%s\n' "${nodir//\.xml}"
+    done
+}
+
+_compute()
+{
+    :
+}
+
+complete -o filenames -F _compute compute