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c18694ff5e
We shift the duty of determining the policies to the backward pass as the forward pass will only be responsible for finding the corrected receiver amount. Note that this is not a pure refactor as demonstrated in the test, as the forward pass doesn't select new policies anymore, which is less flexible and doesn't lead to the highest possible receiver amount. This is however neccessary as we otherwise won't be able to compute forwarding amounts involving inbound fees and this edge case is unlikely to occur, because we search for a min amount for a route that was most likely constructed for a larger amount.
routing
The routing package implements authentication+validation of channel announcements, pruning of the channel graph, path finding within the network, sending outgoing payments into the network and synchronizing new peers to our channel graph state.
Installation and Updating
$ go get -u github.com/lightningnetwork/lnd/routing