packages/flutter_lints/run_tests.sh - mirrors/packages - Git at Google

 #!/bin/bash

 filecount=`find . -name '*.dart' | wc -l`
 if [ $filecount -ne 0 ]
 then
   echo 'Dart sources are not allowed in this package:'
   find . -name '*.dart'
   exit 1
 fi
	#!/bin/bash

	filecount=`find . -name '*.dart' \| wc -l`
	if [ $filecount -ne 0 ]
	then
	echo 'Dart sources are not allowed in this package:'
	find . -name '*.dart'
	exit 1
	fi