cdist-contrib/type/__mail_alias/gencode-remote

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#!/bin/sh -e
#
# 2020 Dennis Camera (dennis.camera@ssrq-sds-fds.ch)
#
# This file is part of cdist.
#
# cdist 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.
#
# cdist 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 cdist. If not, see <http://www.gnu.org/licenses/>.
#
quote() { printf "'%s'" "$(printf '%s' "$*" | sed -e "s/'/'\\\\''/g")"; }
drop_awk_comments() { quote "$(sed '/^[[:blank:]]*#.*$/d;/^$/d' "$@")"; }
aliases_file=$(cat "${__object:?}/explorer/aliases_file")
test -n "${aliases_file}" || {
echo 'Could not determine aliases file path.' >&2
exit 1
}
state_should=$(cat "${__object:?}/parameter/state")
case ${state_should}
in
(present)
if cmp -s "${__object:?}/explorer/aliases" "${__object:?}/parameter/alias"
then
# all good!
exit 0
fi
test -s "${__object:?}/parameter/alias" || {
printf 'The --alias parameter is required if --state present.\n' >&2
printf 'Use --state absent to remove all aliases.\n' >&2
exit 1
}
if test -s "${__object:?}/explorer/aliases"
then
echo "update aliases" >>"${__messages_out:?}"
else
echo "add aliases" >>"${__messages_out:?}"
fi
;;
(absent)
# nothing to do if no aliases found.
test -s "${__object:?}/explorer/aliases" || exit 0
echo "delete aliases" >>"${__messages_out:?}"
;;
(*)
printf 'Invalid --state: %s.\n' "${state_should}" >&2
printf 'Acceptable values are: present, absent.\n' >&2
exit 1
esac
cat <<EOF
test -f $(quote "${aliases_file}") || touch $(quote "${aliases_file}")
awk $(drop_awk_comments "${__type:?}/files/update_aliases.awk") <$(quote "${aliases_file}") >$(quote "${aliases_file}.tmp") \
|| {
rm -f $(quote "${aliases_file}.tmp")
echo 'Generating new aliases file failed!' >&2
exit 1
}
if ! cmp -s $(quote "${aliases_file}") $(quote "${aliases_file}.tmp")
then
# aliases file was modified, replace:
cat $(quote "${aliases_file}.tmp") >$(quote "${aliases_file}")
# then, run newaliases if present ("missing" on Alpine Linux because of typo)
command -v newaliases >/dev/null 2>&1 && newaliases || true
fi
rm -f $(quote "${aliases_file}.tmp")
EOF