scripts/debian/grep_dd_sigs

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#!/bin/sh
# Copyright: Thomas Preud'homme (2011)
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
if [ $# -ne 1 ] ; then
echo "Usage:"
echo " $0 <gpg_key>"
echo "<gpg_key> can be either string that identifies a GPG key: key"
echo "ID, fingerprint, UID, etc. (see 'HOW TO SPECIFY A USER ID' in"
echo "the gpg's manpage)."
exit 1
fi
sigs=$(gpg --with-colons --check-sigs "$1" \
| grep "sig:\!" \
| sed -r "s/sig:\!::[[:digit:]]+:([[:alnum:]]+):.*$/\1/")
echo "$sigs" | while read -r key
do
gpg --no-default-keyring --keyring /usr/share/keyrings/debian-keyring.gpg --list-keys "$key" 2>/dev/null \
| grep "debian.org" \
| grep "^uid" \
| sed -r "s/^uid +//" \
| sort -d \
| uniq
done