server-config/roles/preseed/templates/preseed/pulseaudio-perms.sh

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#!/bin/bash
domaingroup="domain users"
localgroups="pulse pulse-access"
baseusers="bglug"
domainusers="$(getent group "${domaingroup}" | awk 'BEGIN { FS = ":" } ; { print $4 }' | sed -e 's/,/ /g')"
users="${baseusers} ${domainusers}"
for group in ${localgroups}; do
actualusers=$(getent group '${group}' | awk 'BEGIN { FS = ":" }; { print $4 }' | sed -e 's/,/ /g')
# Removing users not in the group
for user in ${actualusers}; do
whuser=${user//[[:space:]]/}
echo "removing ${user}"
[[ "${users}" =~ "${whuser}" ]] || gpasswd -d "${whuser}" "${group}"
unset whuser
done
# Adding users to group
for user in ${users}; do
whuser=${user//[[:space:]]/}
[[ "${actualusers}" =~ "${whuser}" ]] || gpasswd -a "${whuser}" "${group}"
done
done