# fingerprints, one per line:
list_primary_fingerprints() {
local fake=$(msmktempdir)
+ trap "rm -rf $fake" EXIT
GNUPGHOME="$fake" gpg --no-tty --quiet --import
GNUPGHOME="$fake" gpg --with-colons --fingerprint --list-keys | \
awk -F: '/^fpr:/{ print $10 }'
+ trap - EXIT
rm -rf "$fake"
}