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@@ -73,6 +73,152 @@ if [ "${ENVIRONMENT_FILE}" = "THIS_SHOULD_BE_REPLACED_BY_INSTALLER_SCRIPT" ]; th
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fi
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fi
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+issystemd() {
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+ # if the directory /lib/systemd/system OR /usr/lib/systemd/system (SLES 12.x) does not exit, it is not systemd
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+ if [ ! -d /lib/systemd/system ] && [ ! -d /usr/lib/systemd/system ]; then
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+ return 1
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+ fi
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+
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+ # if there is no systemctl command, it is not systemd
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+ systemctl=$(command -v systemctl 2> /dev/null)
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+ if [ -z "${systemctl}" ] || [ ! -x "${systemctl}" ]; then
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+ return 1
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+ fi
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+
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+ # if pid 1 is systemd, it is systemd
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+ [ "$(basename "$(readlink /proc/1/exe)" 2> /dev/null)" = "systemd" ] && return 0
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+
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+ # if systemd is not running, it is not systemd
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+ pids=$(safe_pidof systemd 2> /dev/null)
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+ [ -z "${pids}" ] && return 1
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+
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+ # check if the running systemd processes are not in our namespace
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+ myns="$(readlink /proc/self/ns/pid 2> /dev/null)"
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+ for p in ${pids}; do
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+ ns="$(readlink "/proc/${p}/ns/pid" 2> /dev/null)"
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+
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+ # if pid of systemd is in our namespace, it is systemd
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+ [ -n "${myns}" ] && [ "${myns}" = "${ns}" ] && return 0
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+ done
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+
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+ # else, it is not systemd
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+ return 1
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+}
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+
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+_get_scheduler_type() {
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+ if _get_intervaldir > /dev/null ; then
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+ echo 'interval'
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+ elif issystemd ; then
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+ echo 'systemd'
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+ elif [ -d /etc/cron.d ] ; then
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+ echo 'crontab'
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+ else
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+ echo 'none'
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+ fi
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+}
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+
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+_get_intervaldir() {
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+ if [ -d /etc/cron.daily ]; then
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+ echo /etc/cron.daily
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+ elif [ -d /etc/periodic/daily ]; then
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+ echo /etc/periodic/daily
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+ else
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+ return 1
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+ fi
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+
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+ return 0
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+}
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+
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+enable_netdata_updater() {
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+ updater_type="$(echo "${1}" | tr '[:upper:]' '[:lower:]')"
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+ case "${updater_type}" in
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+ systemd|interval|crontab)
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+ updater_type="${1}"
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+ ;;
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+ "")
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+ updater_type="$(_get_scheduler_type)"
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+ ;;
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+ *)
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+ error "Unrecognized updater type ${updater_type} requested. Supported types are 'systemd', 'interval', and 'crontab'."
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+ exit 1
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+ ;;
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+ esac
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+
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+ case "${updater_type}" in
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+ "systemd")
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+ if issystemd; then
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+ systemctl enable netdata-updater.timer
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+
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+ info "Auto-updating has been ENABLED using a systemd timer unit.\n"
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+ info "If the update process fails, the failure will be logged to the systemd journal just like a regular service failure."
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+ info "Successful updates should produce empty logs."
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+ else
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+ error "Systemd-based auto-update scheduling requested, but this does not appear to be a systemd system."
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+ error "Auto-updates have NOT been enabled."
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+ return 1
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+ fi
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+ ;;
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+ "interval")
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+ if _get_intervaldir > /dev/null; then
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+ ln -sf "${NETDATA_PREFIX}/usr/libexec/netdata/netdata-updater.sh" "$(_get_intervaldir)/netdata-updater"
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+
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+ info "Auto-updating has been ENABLED through cron, updater script linked to $(_get_intervaldir)/netdata-updater\n"
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+ info "If the update process fails and you have email notifications set up correctly for cron on this system, you should receive an email notification of the failure."
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+ info "Successful updates will not send an email."
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+ else
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+ error "Interval-based auto-update scheduling requested, but I could not find an interval scheduling directory."
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+ error "Auto-updates have NOT been enabled."
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+ return 1
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+ fi
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+ ;;
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+ "crontab")
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+ if [ -d "/etc/cron.d" ]; then
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+ cat > "/etc/cron.d/netdata-updater" <<-EOF
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+ 2 57 * * * root ${NETDATA_PREFIX}/netdata-updater.sh
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+ EOF
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+
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+ info "Auto-updating has been ENABLED through cron, using a crontab at /etc/cron.d/netdata-updater\n"
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+ info "If the update process fails and you have email notifications set up correctly for cron on this system, you should receive an email notification of the failure."
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+ info "Successful updates will not send an email."
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+ else
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+ error "Crontab-based auto-update scheduling requested, but there is no '/etc/cron.d'."
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+ error "Auto-updates have NOT been enabled."
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+ return 1
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+ fi
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+ ;;
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+ *)
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+ error "Unable to determine what type of auto-update scheduling to use."
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+ error "Auto-updates have NOT been enabled."
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+ return 1
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+ esac
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+
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+ return 0
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+}
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+
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+disable_netdata_updater() {
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+ if issystemd && ( systemctl list-units --full -all | grep -Fq "netdata-updater.timer" ) ; then
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+ systemctl disable netdata-updater.timer
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+ fi
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+
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+ if [ -d /etc/cron.daily ]; then
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+ rm -f /etc/cron.daily/netdata-updater.sh
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+ rm -f /etc/cron.daily/netdata-updater
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+ fi
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+
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+ if [ -d /etc/periodic/daily ]; then
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+ rm -f /etc/periodic/daily/netdata-updater.sh
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+ rm -f /etc/periodic/daily/netdata-updater
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+ fi
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+
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+ if [ -d /etc/cron.d ]; then
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+ rm -f /etc/cron.d/netdata-updater
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+ fi
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+
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+ info "Auto-updates have been DISABLED."
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+
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+ return 0
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+}
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+
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str_in_list() {
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printf "%s\n" "${2}" | tr ' ' "\n" | grep -qE "^${1}\$"
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return $?
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@@ -574,6 +720,14 @@ ndtmpdir=
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trap cleanup EXIT
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+# shellcheck source=/dev/null
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+. "${ENVIRONMENT_FILE}" || exit 1
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+
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+if [ -f "$(dirname "${ENVIRONMENT_FILE}")/.install-type" ]; then
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+ # shellcheck source=/dev/null
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+ . "$(dirname "${ENVIRONMENT_FILE}")/.install-type" || exit 1
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+fi
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+
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while [ -n "${1}" ]; do
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if [ "${1}" = "--not-running-from-cron" ]; then
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NETDATA_NOT_RUNNING_FROM_CRON=1
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@@ -584,6 +738,12 @@ while [ -n "${1}" ]; do
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elif [ "${1}" = "--tmpdir-path" ]; then
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NETDATA_TMPDIR_PATH="${2}"
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shift 2
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+ elif [ "${1}" = "--enable-auto-updates" ]; then
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+ enable_netdata_updater "${2}"
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+ exit $?
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+ elif [ "${1}" = "--disable-auto-updates" ]; then
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+ disable_netdata_updater
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+ exit $?
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else
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break
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fi
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@@ -601,14 +761,6 @@ if [ ! -t 1 ] && [ -z "${NETDATA_NOT_RUNNING_FROM_CRON}" ]; then
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sleep $(((rnd % 3600) + 1))
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fi
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-# shellcheck source=/dev/null
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-. "${ENVIRONMENT_FILE}" || exit 1
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-
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-if [ -f "$(dirname "${ENVIRONMENT_FILE}")/.install-type" ]; then
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- # shellcheck source=/dev/null
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- . "$(dirname "${ENVIRONMENT_FILE}")/.install-type" || exit 1
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-fi
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-
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# We dont expect to find lib dir variable on older installations, so load this path if none found
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export NETDATA_LIB_DIR="${NETDATA_LIB_DIR:-${NETDATA_PREFIX}/var/lib/netdata}"
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@@ -653,7 +805,7 @@ case "${INSTALL_TYPE}" in
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update_legacy
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;;
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custom)
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- # At this point, we _should_ have a valid `.environment` file, but it0s best to just check.
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+ # At this point, we _should_ have a valid `.environment` file, but it's best to just check.
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# If we do, then behave like the legacy updater.
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if [ -n "${RELEASE_CHANNEL}" ] && [ -n "${NETDATA_PREFIX}" ] && [ -n "${REINSTALL_OPTIONS}" ]; then
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update_legacy
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Austin S. Hemmelgarn