Imports go.chromium.org/luci/auth/identity go.chromium.org/luci/cipd/api/cipd/v1 go.chromium.org/luci/common/data/stringset go.chromium.org/luci/common/errors go.chromium.org/luci/grpc/grpcutil Standard library imports crypto/sha1 crypto/sha256 encoding/base64 encoding/hex fmt hash mime path reflect regexp sort strings