add colorful logging prefix for stderr-direct log lines.

Author: fiatjaf

logger.go

@@ -0,0 +1,12 @@
+package main
+
+import "os"
+
+// PluginLogger prefixes the log output with 'etleneum'
+// and writes to stderr
+type PluginLogger struct{}
+
+func (pl PluginLogger) Write(p []byte) (n int, err error) {
+	_, err = os.Stderr.Write([]byte("\x1B[01;41metleneum\x1B[0m " + string(p)))
+	return len(p), err
+}

main.go

@@ -51,7 +51,7 @@ var s Settings
 var pg *sqlx.DB
 var ln *lightning.Client
 var rds *redis.Client
-var log = zerolog.New(os.Stderr).Output(zerolog.ConsoleWriter{Out: os.Stderr})
+var log = zerolog.New(os.Stderr).Output(zerolog.ConsoleWriter{Out: PluginLogger{}})
 var httpPublic = &assetfs.AssetFS{Asset: Asset, AssetDir: AssetDir, Prefix: ""}
 var userstreams = cmap.New()
 var contractstreams = cmap.New()