tang/debian/tang-common.postinst

#!/bin/sh

set -eu

db_dir_old='/var/db/tang'
db_dir='/var/lib/tang'

case "$1" in
    configure)
        if ! getent passwd _tang >/dev/null; then
            adduser --quiet --system --group --no-create-home --home /nonexistent --force-badname _tang
        fi

        # assert db directory
        mkdir -m0750 -p "$db_dir"
        # assert restrictive permissions upon upgrade
        chmod 0750 "$db_dir"
        chown _tang:_tang "$db_dir"

        ;;
    abort-upgrade | abort-remove | abort-deconfigure) ;;

    *)
        echo "postinst called with unknown argument '$1'" >&2
        exit 1
        ;;
esac

#DEBHELPER#
exit 0