参照パッケージを列挙するコマンド

go-scan.sh

#!/bin/sh

set -eu

list_pkgs()
{
	local f

	f=$(cat <<-'END'
	{{range .Imports}}{{.}}
	{{end}}
	END
	)
	go list -f "$f" "$@" |
	sort -u |
	awk -F/ '/\./'
}

if [[ $# = 0 ]]
then
	echo "usage: $(basename $0) pattern [path ...]" >&2
	exit 2
fi
pattern="$1"
shift

for i in "$@"
do
	echo searching $i >&2
	pkgs=$(list_pkgs "$i")
	for pkg in $pkgs
	do
		if [[ $pkg =~ $pattern ]]
		then
			echo $pattern $i
		fi
	done
	sh $0 "$pattern" $pkgs
done