.cbcp plugin: output a more useful error message

diff --git a/plugins/.cbcp b/plugins/.cbcp
index 3a71927e5a7ffc059184d39343e6386a6d5ff916..70f9b75c15d11533f983424f6d944b1b0802649f 100755 (executable)
--- a/plugins/.cbcp
+++ b/plugins/.cbcp
@@ -22,6 +22,7 @@
 IFS="$(printf '%b_' '\n')"; IFS="${IFS%_}" # protect trailing \n
 
 selection=${NNN_SEL:-${XDG_CONFIG_HOME:-$HOME/.config}/nnn/.selection}
+[ -s "$selection" ] || { echo "plugin .cbcp error: empty selection" >&2 ; exit 1; }
 
 if type xsel >/dev/null 2>&1; then
     # Linux