add build tag to disable metrics

metrics/metrics_disabled.go

@@ -0,0 +1,67 @@
+// +build nometrics
+
+package metrics
+
+import (
+	"github.com/go-chi/chi"
+
+	"github.com/drakkan/sftpgo/version"
+)
+
+func init() {
+	version.AddFeature("-metrics")
+}
+
+// AddMetricsEndpoint exposes metrics to the specified endpoint
+func AddMetricsEndpoint(metricsPath string, handler chi.Router) {}
+
+// TransferCompleted updates metrics after an upload or a download
+func TransferCompleted(bytesSent, bytesReceived int64, transferKind int, err error) {}
+
+// S3TransferCompleted updates metrics after an S3 upload or a download
+func S3TransferCompleted(bytes int64, transferKind int, err error) {}
+
+// S3ListObjectsCompleted updates metrics after an S3 list objects request terminates
+func S3ListObjectsCompleted(err error) {}
+
+// S3CopyObjectCompleted updates metrics after an S3 copy object request terminates
+func S3CopyObjectCompleted(err error) {}
+
+// S3DeleteObjectCompleted updates metrics after an S3 delete object request terminates
+func S3DeleteObjectCompleted(err error) {}
+
+// S3HeadBucketCompleted updates metrics after an S3 head bucket request terminates
+func S3HeadBucketCompleted(err error) {}
+
+// GCSTransferCompleted updates metrics after a GCS upload or a download
+func GCSTransferCompleted(bytes int64, transferKind int, err error) {}
+
+// GCSListObjectsCompleted updates metrics after a GCS list objects request terminates
+func GCSListObjectsCompleted(err error) {}
+
+// GCSCopyObjectCompleted updates metrics after a GCS copy object request terminates
+func GCSCopyObjectCompleted(err error) {}
+
+// GCSDeleteObjectCompleted updates metrics after a GCS delete object request terminates
+func GCSDeleteObjectCompleted(err error) {}
+
+// GCSHeadBucketCompleted updates metrics after a GCS head bucket request terminates
+func GCSHeadBucketCompleted(err error) {}
+
+// SSHCommandCompleted update metrics after an SSH command terminates
+func SSHCommandCompleted(err error) {}
+
+// UpdateDataProviderAvailability updates the metric for the data provider availability
+func UpdateDataProviderAvailability(err error) {}
+
+// AddLoginAttempt increments the metrics for login attempts
+func AddLoginAttempt(authMethod string) {}
+
+// AddLoginResult increments the metrics for login results
+func AddLoginResult(authMethod string, err error) {}
+
+// HTTPRequestServed increments the metrics for HTTP requests
+func HTTPRequestServed(status int) {}
+
+// UpdateActiveConnectionsSize sets the metric for active connections
+func UpdateActiveConnectionsSize(size int) {}