# takes a gpg key or keys on stdin, and outputs a list of
# fingerprints, one per line:
list_primary_fingerprints() {
- local file="$1"
local fake=$(msmktempdir)
GNUPGHOME="$fake" gpg --no-tty --quiet --import
GNUPGHOME="$fake" gpg --with-colons --fingerprint --list-keys | \