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#!/bin/sh /etc/rc.common
#
# shellcheck disable=SC3043 # ash supports local

START=90
STOP=10

PROG=/usr/bin/syncthing
USE_PROCD=1

service_triggers() {
	procd_add_reload_trigger 'syncthing'
}

start_service() {
	config_load 'syncthing'

	local config_name='syncthing'
	local enabled db_delete_retention_interval db_maintenance_interval \
		gui_address gui_apikey home log_file logfile log_level \
		log_max_old_files log_max_size nice user
	local gc maxprocs macprocs memlimit

	uci_validate_section 'syncthing' 'syncthing' "$config_name" \
		'db_delete_retention_interval:string' \
		'db_maintenance_interval:string' \
		'enabled:bool:0' \
		'gc:uinteger:0' \
		'group:string:syncthing' \
		'gui_address:string:http://0.0.0.0:8384' \
		'gui_apikey:string' \
		'home:string:/etc/syncthing' \
		'log_file:string:/var/log/syncthing.log' \
		'logfile:string' \
		'log_level:or("DEBUG", "INFO", "WARN", "ERROR"):INFO' \
		'log_max_old_files:uinteger:7' \
		'log_max_size:uinteger:1048576' \
		'macprocs:uinteger' \
		'maxprocs:uinteger:0' \
		'memlimit:uinteger:0' \
		'nice:range(-20,19):0' \
		'user:string:syncthing'

	[ "$enabled" = 1 ] || return 0

	# Compatibility with older configs
	[ -n "$logfile" ] && log_file="$logfile"
	[ -n "$macprocs" ] && maxprocs="$macprocs"

	[ -z "$group" ] && group=$(id -gn "$user")

	mkdir -p "$home"
	# A separate step to handle an upgrade use case
	[ -d "$home" ] && chown -R "$user:$group" "$home"

	procd_open_instance syncthing

	procd_set_param command "$PROG"

	[ "$gc" -le 0 ] || procd_append_param env GOGC="$gc"
	[ "$maxprocs" -le 0 ] || procd_append_param env GOMAXPROCS="$maxprocs"
	[ "$memlimit" -le 0 ] || procd_append_param env GOMEMLIMIT="$memlimit"

	procd_append_param command serve
	[ -z "$db_delete_retention_interval" ] ||
		procd_append_param command \
			--db-delete-retention-interval="$db_delete_retention_interval"
	[ -z "$db_maintenance_interval" ] ||
		procd_append_param command \
			--db-maintenance-interval="$db_maintenance_interval"
	procd_append_param command --gui-address="$gui_address"
	[ -z "$gui_apikey" ] ||
		procd_append_param command --gui_apikey="$gui_apikey"
	procd_append_param command --home="$home"
	procd_append_param command --log-file="$log_file"
	[ -z "$log_level" ] || procd_append_param command --log-level="$log_level"
	[ -z "$log_max_old_files" ] ||
		procd_append_param command --log-max-old-files="$log_max_old_files"
	[ -z "$log_max_size" ] ||
		procd_append_param command --log-max-size="$log_max_size"
	procd_append_param command --no-browser
	procd_append_param command --no-port-probing
	procd_append_param command --no-restart
	# The package is built with noupgrade tag so --no-upgrade is not necessary

	procd_set_param nice "$nice"
	procd_set_param term_timeout 15
	procd_set_param user "$user"
	procd_set_param group "$group"
	procd_set_param respawn
	procd_set_param stdout 0
	procd_set_param stderr 1

	procd_close_instance
}

reload_service() {
	stop
	start
}