Merge pull request #5697 from arshbot/export-selectHopHints

invoicesrpc: expose selectHopHints

docs/release-notes/release-notes-0.14.0.md

@@ -152,6 +152,10 @@ you.
   into projects that are compiled to WASM binaries. [That problem was fixed by
   guarding those syscalls with build tags](https://github.com/lightningnetwork/lnd/pull/5526).
 
+* The only way to retrieve hophints for a given node was to create an invoice
+  with the `addInvoice` rpc interface. However, now the function has been
+  [exposed in the go package `invoicesrpc`](https://github.com/lightningnetwork/lnd/pull/5697).
+
 ## Code Health
 
 ### Code cleanup, refactor, typo fixes
@@ -265,6 +269,7 @@ change](https://github.com/lightningnetwork/lnd/pull/5613).
 * de6df1re
 * ErikEk
 * Eugene Siegel
+* Harsha Goli
 * Martin Habovstiak
 * Oliver Gugger
 * Wilmer Paulino

lnrpc/invoicesrpc/addinvoice.go

@@ -391,7 +391,7 @@ func AddInvoice(ctx context.Context, cfg *AddInvoiceConfig,
 			// We'll restrict the number of individual route hints
 			// to 20 to avoid creating overly large invoices.
 			numMaxHophints := 20 - len(forcedHints)
-			hopHints := selectHopHints(
+			hopHints := SelectHopHints(
 				amtMSat, cfg, filteredChannels, numMaxHophints,
 			)
 
@@ -553,12 +553,12 @@ func addHopHint(hopHints *[]func(*zpay32.Invoice),
 	)
 }
 
-// selectHopHints will select up to numMaxHophints from the set of passed open
+// SelectHopHints will select up to numMaxHophints from the set of passed open
 // channels. The set of hop hints will be returned as a slice of functional
 // options that'll append the route hint to the set of all route hints.
 //
 // TODO(roasbeef): do proper sub-set sum max hints usually << numChans
-func selectHopHints(amtMSat lnwire.MilliSatoshi, cfg *AddInvoiceConfig,
+func SelectHopHints(amtMSat lnwire.MilliSatoshi, cfg *AddInvoiceConfig,
 	openChannels []*channeldb.OpenChannel,
 	numMaxHophints int) []func(*zpay32.Invoice) {