update-openwisp-package.sh

#!/bin/sh
reboot=false

# updates opkg lists only if necessary
opkg_update(){
    (
        test -d /tmp/opkg-lists/ && \
        test -f /tmp/opkg-lists/openwrt_base && \
        test -f /tmp/opkg-lists/openwrt_packages && \
        test -f /tmp/opkg-lists/openwrt_core
    ) || opkg update;
}

# installs libubus-lua if necessary
libubus_lua_installed=$(opkg list-installed | grep libubus-lua -c)
if [ "$libubus_lua_installed" == "0" ]; then
    opkg_update
    opkg install libubus-lua
fi

# installs lua-cjson if necessary
luacjson_installed=$(opkg list-installed | grep lua-cjson -c)
if [ "$luacjson_installed" == "0" ]; then
    opkg_update
    opkg install lua-cjson
fi

# installs rpcd-mod-iwinfo if necessary
rpcd_mod_iwinfo_installed=$(opkg list-installed | grep rpcd-mod-iwinfo -c)
if [ "$rpcd_mod_iwinfo_installed" == "0" ]; then
    opkg_update
    opkg install rpcd-mod-iwinfo
    reboot=true 
fi

# upgrades openwisp-config if necessary
openwisp_config_version=$(openwisp_config --version)
if [ "$openwisp_config_version" != "openwisp-config 0.5.0a" ]; then
    # backup config just in case...
    cp /etc/config/openwisp /etc/config/openwisp-backup
    opkg_update
    opkg install http://downloads.openwisp.io/openwisp-config/latest/openwisp-config-openssl_0.5.0a-1_all.ipk
    # restore backup
    mv /etc/config/openwisp-backup /etc/config/openwisp
    # remove default conf
    rm /etc/config/openwisp-opkg
    /etc/init.d/openwisp_config restart
fi

# reboots if rpcd-mod-iwinfo has been installed
if [ "$reboot" == "true" ]; then
    sleep 5
    reboot && exit
fi