Print Go package names in tree form

go-package-tree.sh

SEDMAGIC='s;/[^/]*;|____;g;s;____|; |;g'
for f in $(find . -name "*.go" -print); do
	line=$(head -n 1 "$f");
	[[ ! -z "$line" ]] && [[ "$line" =~ ^package[\ ][a-z_]+$ ]] && is_package=true
	if [ "$is_package" = true ]; then
		tree=$(echo "$f" | sed -e "$SEDMAGIC");
		package_name=$(echo $line | cut -d' ' -f 2);
		echo "$tree $package_name"
	fi
done

TODO: Duplicate package names in tree.