supplycommit: add logging support

Author: ffranr

log.go

@@ -14,6 +14,7 @@ import (
 	"github.com/lightninglabs/taproot-assets/tapgarden"
 	"github.com/lightninglabs/taproot-assets/tapsend"
 	"github.com/lightninglabs/taproot-assets/universe"
+	"github.com/lightninglabs/taproot-assets/universe/supplycommit"
 	"github.com/lightningnetwork/lnd/build"
 	"github.com/lightningnetwork/lnd/signal"
 )
@@ -109,6 +110,10 @@ func SetupLoggers(root *build.SubLoggerManager,
 	AddSubLogger(root, address.Subsystem, interceptor, address.UseLogger)
 	AddSubLogger(root, tapsend.Subsystem, interceptor, tapsend.UseLogger)
 	AddSubLogger(root, universe.Subsystem, interceptor, universe.UseLogger)
+	AddSubLogger(
+		root, supplycommit.Subsystem, interceptor,
+		supplycommit.UseLogger,
+	)
 	AddSubLogger(
 		root, commitment.Subsystem, interceptor, commitment.UseLogger,
 	)

universe/supplycommit/log.go

@@ -0,0 +1,26 @@
+package supplycommit
+
+import (
+	"github.com/btcsuite/btclog/v2"
+)
+
+// Subsystem defines the logging code for this subsystem.
+const Subsystem = "SUCO"
+
+// log is a logger that is initialized with no output filters.  This
+// means the package will not perform any logging by default until the caller
+// requests it.
+var log = btclog.Disabled
+
+// DisableLog disables all library log output.  Logging output is disabled
+// by default until UseLogger is called.
+func DisableLog() {
+	UseLogger(btclog.Disabled)
+}
+
+// UseLogger uses a specified Logger to output package logging info.
+// This should be used in preference to SetLogWriter if the caller is also
+// using btclog.
+func UseLogger(logger btclog.Logger) {
+	log = logger
+}