diff_cmd () { "$merge_tool_path" --default --mode=diff2 "$LOCAL" "$REMOTE" } merge_cmd () { touch "$BACKUP" if $base_present then "$merge_tool_path" "$BASE" "$LOCAL" "$REMOTE" \ --default --mode=merge3 --to="$MERGED" else "$merge_tool_path" "$LOCAL" "$REMOTE" \ --default --mode=merge2 --to="$MERGED" fi check_unchanged }