Merge pull request #73 from paketo-buildpacks/detect-logging

Adds logging to detection

cmd/main/main.go

@@ -26,8 +26,9 @@ import (
 )
 
 func main() {
+	logger := bard.NewLogger(os.Stdout)
 	libpak.Main(
-		elastic.Detect{},
-		elastic.Build{Logger: bard.NewLogger(os.Stdout)},
+		elastic.Detect{Logger: logger},
+		elastic.Build{Logger: logger},
 	)
 }

elastic/detect.go

@@ -21,14 +21,18 @@ import (
 
 	"github.com/buildpacks/libcnb"
 	"github.com/paketo-buildpacks/libpak/bindings"
+	"github.com/paketo-buildpacks/libpak/bard"
 )
 
-type Detect struct{}
+type Detect struct{
+	Logger bard.Logger
+}
 
 func (d Detect) Detect(context libcnb.DetectContext) (libcnb.DetectResult, error) {
 	if _, ok, err := bindings.ResolveOne(context.Platform.Bindings, bindings.OfType("ElasticAPM")); err != nil {
 		return libcnb.DetectResult{}, fmt.Errorf("unable to resolve binding ElasticAPM\n%w", err)
 	} else if !ok {
+		d.Logger.Info("SKIPPED: No binding of type 'ElasticAPM' found")
 		return libcnb.DetectResult{Pass: false}, nil
 	}