feat(config): add option to control debug log printing for loaded con…

config/config.go

@@ -49,6 +49,7 @@ func New(opts ...Option) Config {
 		merge: func(dst, src any) error {
 			return mergo.Map(dst, src, mergo.WithOverride)
 		},
+		printLoadedDebugLog: true,
 	}
 	for _, opt := range opts {
 		opt(&o)
@@ -99,8 +100,10 @@ func (c *config) Load() error {
 		if err != nil {
 			return err
 		}
-		for _, v := range kvs {
-			log.Debugf("config loaded: %s format: %s", v.Key, v.Format)
+		if c.opts.printLoadedDebugLog {
+			for _, v := range kvs {
+				log.Debugf("config loaded: %s format: %s", v.Key, v.Format)
+			}
 		}
 		if err = c.reader.Merge(kvs...); err != nil {
 			log.Errorf("failed to merge config source: %v", err)

config/options.go

@@ -22,10 +22,11 @@ type Merge func(dst, src any) error
 type Option func(*options)
 
 type options struct {
-	sources  []Source
-	decoder  Decoder
-	resolver Resolver
-	merge    Merge
+	sources             []Source
+	decoder             Decoder
+	resolver            Resolver
+	merge               Merge
+	printLoadedDebugLog bool
 }
 
 // WithSource with config source.
@@ -35,6 +36,15 @@ func WithSource(s ...Source) Option {
 	}
 }
 
+// WithPrintLoadedDebugLog with config print loaded debug log.
+// Default is true.
+// When printLoadedDebugLog is set to false, the loaded configuration will not be printed in the log.
+func WithPrintLoadedDebugLog(printLoadedDebugLog bool) Option {
+	return func(o *options) {
+		o.printLoadedDebugLog = printLoadedDebugLog
+	}
+}
+
 // WithDecoder with config decoder.
 // DefaultDecoder behavior:
 // If KeyValue.Format is non-empty, then KeyValue.Value will be deserialized into map[string]interface{}

config/options_test.go

@@ -395,3 +395,15 @@ func TestWithMergeFunc(t *testing.T) {
 		t.Fatal("c.merge is nil")
 	}
 }
+
+func TestWithPrintLoadedDebugLog(t *testing.T) {
+	c := &options{}
+	WithPrintLoadedDebugLog(true)(c)
+	if !c.printLoadedDebugLog {
+		t.Fatal("c.printLoadedDebugLog is false")
+	}
+	WithPrintLoadedDebugLog(false)(c)
+	if c.printLoadedDebugLog {
+		t.Fatal("c.printLoadedDebugLog is true")
+	}
+}