perf: use zap's Check() to prevent useless allocs (#6560)

* perf: use zap's Check() to prevent useless allocs

* fix

* fix

* fix

* fix

* restore previous replacer behavior

* fix linter

1 files changed, 19 insertions, 9 deletions

diff --git a/modules/caddytls/automation.go b/modules/caddytls/automation.go
index 781818ed..e2e02221 100644
--- a/modules/caddytls/automation.go
+++ b/modules/caddytls/automation.go
@@ -26,6 +26,7 @@ import (
 	"github.com/caddyserver/certmagic"
 	"github.com/mholt/acmez/v2"
 	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
 
 	"github.com/caddyserver/caddy/v2"
 )
@@ -292,21 +293,30 @@ func (ap *AutomationPolicy) Provision(tlsApp *TLS) error {
 						remoteIP, _, _ = net.SplitHostPort(remote.String())
 					}
 				}
-				tlsApp.logger.Debug("asking for permission for on-demand certificate",
-					zap.String("remote_ip", remoteIP),
-					zap.String("domain", name))
+				if c := tlsApp.logger.Check(zapcore.DebugLevel, "asking for permission for on-demand certificate"); c != nil {
+					c.Write(
+						zap.String("remote_ip", remoteIP),
+						zap.String("domain", name),
+					)
+				}
 
 				// ask the permission module if this cert is allowed
 				if err := tlsApp.Automation.OnDemand.permission.CertificateAllowed(ctx, name); err != nil {
 					// distinguish true errors from denials, because it's important to elevate actual errors
 					if errors.Is(err, ErrPermissionDenied) {
-						tlsApp.logger.Debug("on-demand certificate issuance denied",
-							zap.String("domain", name),
-							zap.Error(err))
+						if c := tlsApp.logger.Check(zapcore.DebugLevel, "on-demand certificate issuance denied"); c != nil {
+							c.Write(
+								zap.String("domain", name),
+								zap.Error(err),
+							)
+						}
 					} else {
-						tlsApp.logger.Error("failed to get permission for on-demand certificate",
-							zap.String("domain", name),
-							zap.Error(err))
+						if c := tlsApp.logger.Check(zapcore.ErrorLevel, "failed to get permission for on-demand certificate"); c != nil {
+							c.Write(
+								zap.String("domain", name),
+								zap.Error(err),
+							)
+						}
 					}
 					return err
 				}