diff_cmd () {
"$merge_tool_path" mergetool "$LOCAL" "$REMOTE" -o "$MERGED"
}
merge_cmd () {
if $base_present
then
"$merge_tool_path" mergetool "$BASE" "$LOCAL" "$REMOTE" -o "$MERGED"
else
"$merge_tool_path" mergetool "$LOCAL" "$REMOTE" -o "$MERGED"
fi
}