zsh: minor prompt update

zsh/.local/share/zsh/functions/_eph

@@ -0,0 +1,21 @@
+#compdef eph
+_eph() {
+    local curcontext="$curcontext" state line
+    typeset -A opt_args
+
+    _arguments -C \
+        '(-h --help)'{-h,--help}'[display help]' \
+        '--completion[generate completion script]:shell:(zsh)' \
+        '--list[list all containers]' \
+        '1: :->containers'
+
+    case $state in
+        containers)
+            local -a subcmds
+            subcmds=(${(f)"$(lxc ls -c n -f csv 2>/dev/null)"})
+            _describe 'containers' subcmds
+            ;;
+    esac
+}
+
+_eph "$@"