Streamline code in basta.prepare_term.

- We calculate the final LINES value unconditionally whether
  or not it is the first call that sets basta_prev_reserved_rows.
  Then we just copy that value into basta_scroll_lines and
  basta_old_lines. We don't rely on the side effect of the
  "stty rows" command setting LINES.

1 files changed, 4 insertions, 4 deletions

diff --git a/basta.sh b/basta.sh
index ce37890..cec8af5 100644
--- a/basta.sh
+++ b/basta.sh
@@ -29,14 +29,14 @@ basta.prepare_term()
   if [ -z "$basta_prev_reserved_rows" ] ; then
     basta_prev_reserved_rows=$((realrows - LINES))
     printf "\n\033[A"
-  else
-    LINES=$((realrows - $basta_prev_reserved_rows))
   fi
 
-  basta_scroll_lines=$((LINES - 1))
-  stty rows $basta_scroll_lines
+  LINES=$((realrows - $basta_prev_reserved_rows - 1))
+
+  basta_scroll_lines=$LINES
   basta_old_lines=$LINES
   basta_old_cols=$COLUMNS
+  stty rows $LINES
 }
 
 basta.get_cur_line()