add commit hash to logs

build/build.go

@@ -0,0 +1,36 @@
+package build
+
+import "runtime/debug"
+
+var (
+	tag      string
+	revision string
+)
+
+func GetRevision() string {
+	if revision != "" {
+		return revision
+	}
+
+	buildInfo, ok := debug.ReadBuildInfo()
+	if !ok {
+		return "unknown"
+	}
+
+	for _, setting := range buildInfo.Settings {
+		if setting.Key == "vcs.revision" {
+			revision = setting.Value
+			return revision
+		}
+	}
+
+	return "unknown"
+}
+
+func GetTag() string {
+	if tag != "" {
+		return tag
+	}
+
+	return "none"
+}

cln_plugin/cln_plugin.go

@@ -14,6 +14,8 @@ import (
 	"strings"
 	"sync"
 	"time"
+
+	"github.com/breez/lspd/build"
 )
 
 const (
@@ -68,6 +70,7 @@ func NewClnPlugin(in, out *os.File) *ClnPlugin {
 // NOTE: The grpc server is started in the handleInit function.
 func (c *ClnPlugin) Start() {
 	c.setupLogging()
+	log.Printf(`Starting lspd cln_plugin, tag='%s', revision='%s'`, build.GetTag(), build.GetRevision())
 	go c.listenRequests()
 	<-c.done
 	s := c.server

main.go

@@ -13,6 +13,7 @@ import (
 	"syscall"
 	"time"
 
+	"github.com/breez/lspd/build"
 	"github.com/breez/lspd/chain"
 	"github.com/breez/lspd/cln"
 	"github.com/breez/lspd/common"
@@ -38,6 +39,7 @@ func main() {
 		return
 	}
 
+	log.Printf(`Starting lspd, tag='%s', revision='%s'`, build.GetTag(), build.GetRevision())
 	n := os.Getenv("NODES")
 	var nodeConfigs []*config.NodeConfig
 	err := json.Unmarshal([]byte(n), &nodeConfigs)