localgpgexpandkeyring



#!/bin/sh
# fetch missing keys signed by local keys

set -e

# set e.g. GPG=gpg2 in environment to override binary to use
GPG=${GPG:-gpg}

# my keys are those with a corresponding secret key
mykeys=$($GPG --batch --list-secret-keys --with-colons | grep '^sec' | cut -d: -f5)
if [ -z "$mykeys" ]; then
    # exit if no key string
    echo "Can't get user's key ID"
    exit 1
fi

# all of the people without key locally who have signed my key
mysigners=$(LC_ALL=C $GPG --batch --list-sigs --with-colons $mykeys | grep '^sig.*User ID not found' | cut -d: -f5 | sort -u)

if [ -z "$mysigners" ]; then
    echo "# Nothing to fetch!"
else
    $GPG --batch --keyserver-options no-auto-key-retrieve "$@" --recv-keys $mysigners
fi