freifunk-policyrouting: do not add to ucitrack multiple times

[SvenRoederer]

Do not update ucitrack when the last list already has the correct option set. This prevents from adding the same items on every upgrade.

Signed-off-by: Sven Roederer freifunk@it-solutions.geroedel.de

[feckert]

@SvenRoederer
I think you should remove the entry first and then add this entry again.
If the entry is present (old one) then replace this with a new one.
And additional in the end return with "exit 0".
This will delete the uci default file and will not get executed on next boot.

This is best practice.
See for example:
https://github.com/openwrt/luci/blob/44bf3f0c1640040561306caff39f34ac916b4357/applications/luci-app-olsr/root/etc/uci-defaults/40_luci-olsr

[SvenRoederer]

This should be reopened under the upcoming freifunk-repo (https://github.com/freifunk/openwrt-packages)

[feckert]

Please reopen this pullrequest in the new freifunk feed because package is already moved.
So I will close this there.