Go Build ID at a particular commit

buildid-at-commit.sh

#!/usr/bin/env bash
# Shows the build id (as reported by "go list" and "go tool buildid") of a package at a given git ref.

COMMIT=${1?Error: supply a commit}
PACKAGE=${2?Error: supply a package}

git checkout --detach "${COMMIT}" >/dev/null 2>&1
go build -o tmp "${PACKAGE}" >/dev/null 2>&1
echo -n "go tool buildid: "
go tool buildid tmp
echo -n "go list -e -export -f '{{ .BuildID }}': "
go list -e -export -f '{{ .BuildID }}' "${PACKAGE}"
git switch - >/dev/null 2>&1