refactor: move graph related DB code to graph/db from channeldb

This is a pure refactor commit. It moves over all the graph related CRUD
code from `channeldb` to `graph/db`.

routing/chainview/bitcoind.go

@@ -13,7 +13,7 @@ import (
 	"github.com/btcsuite/btcwallet/chain"
 	"github.com/btcsuite/btcwallet/wtxmgr"
 	"github.com/lightningnetwork/lnd/blockcache"
-	"github.com/lightningnetwork/lnd/channeldb"
+	graphdb "github.com/lightningnetwork/lnd/graph/db"
 )
 
 // BitcoindFilteredChainView is an implementation of the FilteredChainView
@@ -448,7 +448,7 @@ func (b *BitcoindFilteredChainView) chainFilterer() {
 // rewound to ensure all relevant notifications are dispatched.
 //
 // NOTE: This is part of the FilteredChainView interface.
-func (b *BitcoindFilteredChainView) UpdateFilter(ops []channeldb.EdgePoint,
+func (b *BitcoindFilteredChainView) UpdateFilter(ops []graphdb.EdgePoint,
 	updateHeight uint32) error {
 
 	newUtxos := make([]wire.OutPoint, len(ops))

routing/chainview/btcd.go

@@ -13,7 +13,7 @@ import (
 	"github.com/btcsuite/btcd/rpcclient"
 	"github.com/btcsuite/btcd/wire"
 	"github.com/lightningnetwork/lnd/blockcache"
-	"github.com/lightningnetwork/lnd/channeldb"
+	graphdb "github.com/lightningnetwork/lnd/graph/db"
 )
 
 // BtcdFilteredChainView is an implementation of the FilteredChainView
@@ -456,7 +456,7 @@ type filterUpdate struct {
 // rewound to ensure all relevant notifications are dispatched.
 //
 // NOTE: This is part of the FilteredChainView interface.
-func (b *BtcdFilteredChainView) UpdateFilter(ops []channeldb.EdgePoint,
+func (b *BtcdFilteredChainView) UpdateFilter(ops []graphdb.EdgePoint,
 	updateHeight uint32) error {
 
 	newUtxos := make([]wire.OutPoint, len(ops))

routing/chainview/interface.go

@@ -3,7 +3,7 @@ package chainview
 import (
 	"github.com/btcsuite/btcd/chaincfg/chainhash"
 	"github.com/btcsuite/btcd/wire"
-	"github.com/lightningnetwork/lnd/channeldb"
+	graphdb "github.com/lightningnetwork/lnd/graph/db"
 )
 
 // FilteredChainView represents a subscription to a certain subset of the
@@ -43,7 +43,7 @@ type FilteredChainView interface {
 	// relevant notifications are dispatched, meaning blocks with a height
 	// lower than the best known height might be sent over the
 	// FilteredBlocks() channel.
-	UpdateFilter(ops []channeldb.EdgePoint, updateHeight uint32) error
+	UpdateFilter(ops []graphdb.EdgePoint, updateHeight uint32) error
 
 	// FilterBlock takes a block hash, and returns a FilteredBlocks which
 	// is the result of applying the current registered UTXO sub-set on the

routing/chainview/interface_test.go

@@ -21,7 +21,7 @@ import (
 	_ "github.com/btcsuite/btcwallet/walletdb/bdb" // Required to register the boltdb walletdb implementation.
 	"github.com/lightninglabs/neutrino"
 	"github.com/lightningnetwork/lnd/blockcache"
-	"github.com/lightningnetwork/lnd/channeldb"
+	graphdb "github.com/lightningnetwork/lnd/graph/db"
 	"github.com/lightningnetwork/lnd/kvdb"
 	"github.com/lightningnetwork/lnd/lntest/unittest"
 	"github.com/lightningnetwork/lnd/lntest/wait"
@@ -218,7 +218,7 @@ func testFilterBlockNotifications(node *rpctest.Harness,
 	require.NoError(t, err, "unable to get current height")
 
 	// Now we'll add both outpoints to the current filter.
-	filter := []channeldb.EdgePoint{
+	filter := []graphdb.EdgePoint{
 		{FundingPkScript: targetScript, OutPoint: *outPoint1},
 		{FundingPkScript: targetScript, OutPoint: *outPoint2},
 	}
@@ -328,7 +328,7 @@ func testUpdateFilterBackTrack(node *rpctest.Harness,
 
 	// After the block has been mined+notified we'll update the filter with
 	// a _prior_ height so a "rewind" occurs.
-	filter := []channeldb.EdgePoint{
+	filter := []graphdb.EdgePoint{
 		{FundingPkScript: testScript, OutPoint: *outPoint},
 	}
 	err = chainView.UpdateFilter(filter, uint32(currentHeight))
@@ -417,7 +417,7 @@ func testFilterSingleBlock(node *rpctest.Harness, chainView FilteredChainView,
 
 	// Now we'll manually trigger filtering the block generated above.
 	// First, we'll add the two outpoints to our filter.
-	filter := []channeldb.EdgePoint{
+	filter := []graphdb.EdgePoint{
 		{FundingPkScript: testScript, OutPoint: *outPoint1},
 		{FundingPkScript: testScript, OutPoint: *outPoint2},
 	}

routing/chainview/neutrino.go

@@ -12,7 +12,7 @@ import (
 	"github.com/btcsuite/btcd/wire"
 	"github.com/lightninglabs/neutrino"
 	"github.com/lightningnetwork/lnd/blockcache"
-	"github.com/lightningnetwork/lnd/channeldb"
+	graphdb "github.com/lightningnetwork/lnd/graph/db"
 	"github.com/lightningnetwork/lnd/lntypes"
 )
 
@@ -320,7 +320,7 @@ func (c *CfFilteredChainView) FilterBlock(blockHash *chainhash.Hash) (*FilteredB
 // rewound to ensure all relevant notifications are dispatched.
 //
 // NOTE: This is part of the FilteredChainView interface.
-func (c *CfFilteredChainView) UpdateFilter(ops []channeldb.EdgePoint,
+func (c *CfFilteredChainView) UpdateFilter(ops []graphdb.EdgePoint,
 	updateHeight uint32) error {
 
 	log.Tracef("Updating chain filter with new UTXO's: %v", ops)