openwrt-packages/net/transmission/files/transmission.init

#!/bin/sh /etc/rc.common
# Copyright (C) 2010-2015 OpenWrt.org

START=99
USE_PROCD=1


LIST_SEP="
"

append_params() {
	local p; local v; local s="$1"; shift
	for p in $*; do
		config_get v "$s" "$p"
		IFS="$LIST_SEP"
		for v in $v; do
			[ -n "$v" ] && (
				echo "\""$p"\": "$v"," | sed -e 's|_|-|g' >> $config_file
			)
		done
		unset IFS
	done
}

append_params_quotes() {
	local p; local v; local s="$1"; shift
	for p in $*; do
		config_get v "$s" "$p"
		IFS="$LIST_SEP"
		for v in $v; do
			[ -n "$v" ] && (
				echo -n "\""$p | sed -e 's|/|\\/|g;s|_|-|g' >> $config_file; \
				echo "\": \""$v"\"," >> $config_file
			)
		done
		unset IFS
	done
}

section_enabled() {
	config_get_bool enabled "$1" 'enabled' 0
	[ $enabled -gt 0 ]
}

transmission() {
	local cfg="$1"
	#give transmission 3/5 of the memory of the system
	local USE
	local MEM=`grep MemTotal /proc/meminfo|sed 's/ \+/ /g'|cut -d ' ' -f 2`
	if test "$MEM" -gt 1;then
		USE=`expr $MEM \* 3000 / 5`
	fi

	local user
	local download_dir

	section_enabled "$section" || return 1

	config_get config_dir "$cfg" 'config_dir' '/var/etc/transmission'
	config_get user "$cfg" 'user'
	config_get download_dir "$cfg" 'download_dir' '/var/etc/transmission'

	config_file="$config_dir/settings.json"
	[ -d $config_dir ] || {
		mkdir -m 0755 -p "$config_dir"
		touch $config_file
		[ -z "$user" ] || chown -R $user $config_dir
	}

	echo "{" > $config_file

	append_params "$cfg" \
		alt_speed_down alt_speed_enabled alt_speed_time_begin alt_speed_time_day \
		alt_speed_time_enabled alt_speed_time_end alt_speed_up blocklist_enabled \
		cache_size_mb download_queue_enabled download_queue_size \
		dht_enabled encryption idle_seeding_limit idle_seeding_limit_enabled \
		incomplete_dir_enabled lazy_bitfield_enabled lpd_enabled message_level \
		peer_limit_global peer_limit_per_torrent peer_port \
		peer_port_random_high peer_port_random_low peer_port_random_on_start \
		pex_enabled port_forwarding_enabled preallocation prefetch_enabled \
		ratio_limit ratio_limit_enabled rename_partial_files rpc_authentication_required \
		rpc_enabled rpc_port rpc_whitelist_enabled queue_stalled_enabled \
		queue_stalled_minutes scrape_paused_torrents_enabled script_torrent_done_enabled \
		seed_queue_enabled seed_queue_size \
		speed_limit_down speed_limit_down_enabled speed_limit_up \
		speed_limit_up_enabled start_added_torrents trash_original_torrent_files \
		umask upload_slots_per_torrent utp_enabled scrape_paused_torrents \
		watch_dir_enabled

	append_params_quotes "$cfg" \
		blocklist_url bind_address_ipv4 bind_address_ipv6 download_dir incomplete_dir \
		peer_congestion_algorithm peer_socket_tos rpc_bind_address rpc_password rpc_url \
		rpc_username rpc_whitelist script_torrent_done_filename watch_dir

	echo "\""invalid-key"\": false" >> $config_file
	echo "}" >> $config_file

	procd_open_instance
	procd_set_param command /usr/bin/transmission-daemon -g $config_dir -f
	procd_set_param respawn
	procd_set_param user "$user"
	if test -z "$USE";then
		procd_set_param limits core="0 0"
	else
		procd_set_param limits core="0 0" as="$USE $USE"
		logger -t transmission "Starting with $USE virt mem"
	fi

	procd_add_jail transmission log
	procd_add_jail_mount $config_file
	procd_add_jail_mount_rw $download_dir
	procd_close_instance
}

start_service() {
	config_load 'transmission'
	config_foreach transmission 'transmission'
}