modularize invoicewithdescriptionhash method, still keep it on sparko.

Makefile

@@ -1,5 +1,5 @@
 dist: $(shell find . -name "*.go") spark-wallet/client/dist
-	go-bindata -prefix spark-wallet/client/dist-o bindata.go spark-wallet/client/dist/...
+	go-bindata -prefix spark-wallet/client/dist -o bindata.go spark-wallet/client/dist/...
 	mkdir -p dist
 	gox -ldflags="-s -w" -osarch="darwin/amd64 linux/386 linux/amd64 linux/arm freebsd/amd64" -output="dist/sparko_{{.OS}}_{{.Arch}}"
 

invoicewithdescriptionhash/cmd/Makefile

@@ -0,0 +1,6 @@
+dist: $(shell find . -name "*.go")
+	mkdir -p dist
+	gox -ldflags="-s -w" -osarch="darwin/amd64 linux/386 linux/amd64 linux/arm freebsd/amd64" -output="dist/invoicewithdescriptionhash_{{.OS}}_{{.Arch}}"
+
+invoicewithdescriptionhash: $(shell find . -name "*.go")
+	go build -o ./invoicewithdescriptionhash

invoicewithdescriptionhash/cmd/main.go

@@ -0,0 +1,18 @@
+package main
+
+import (
+	"github.com/fiatjaf/lightningd-gjson-rpc/plugin"
+	"github.com/fiatjaf/sparko/invoicewithdescriptionhash"
+)
+
+func main() {
+	p := plugin.Plugin{
+		Name:    "invoicewithdescriptionhash",
+		Version: "v1.0",
+		Options: []plugin.Option{},
+		RPCMethods: []plugin.RPCMethod{
+			invoicewithdescriptionhash.InvoiceWithDescriptionHashMethod,
+		},
+	}
+	p.Run()
+}

invoicewithdescriptionhash.go → invoicewithdescriptionhash/method.go

@@ -1,4 +1,4 @@
-package main
+package invoicewithdescriptionhash
 
 import (
 	"encoding/hex"

main.go

@@ -8,6 +8,7 @@ import (
 	"github.com/NYTimes/gziphandler"
 	assetfs "github.com/elazarl/go-bindata-assetfs"
 	"github.com/fiatjaf/lightningd-gjson-rpc/plugin"
+	"github.com/fiatjaf/sparko/invoicewithdescriptionhash"
 	"github.com/gorilla/mux"
 	"github.com/gorilla/securecookie"
 	"github.com/rs/cors"
@@ -40,7 +41,7 @@ func main() {
 		},
 		RPCMethods: []plugin.RPCMethod{
 			// just a useful helper
-			InvoiceWithDescriptionHashMethod,
+			invoicewithdescriptionhash.InvoiceWithDescriptionHashMethod,
 
 			// required by spark-wallet
 			connectFund,