Create printer object to manage output

Signed-off-by: Terry Howe <[email protected]>

cmd/oras/internal/display/status/print.go

@@ -27,17 +27,33 @@ import (
 	"oras.land/oras-go/v2/registry"
 )
 
-var printLock sync.Mutex
+type Printer struct {
+	printLock sync.Mutex
+	verbose   bool
+}
+
+var printer Printer
+
+// NewPrinter creates a printer object
+func NewPrinter(verbose bool) *Printer {
+	printer = Printer{verbose: verbose}
+	return &printer
+}
+
+// Print objects to display concurrent-safely.
+func (p *Printer) Print(a ...any) error {
+	p.printLock.Lock()
+	defer p.printLock.Unlock()
+	_, err := fmt.Println(a...)
+	return err
+}
 
 // PrintFunc is the function type returned by StatusPrinter.
 type PrintFunc func(ocispec.Descriptor) error
 
 // Print objects to display concurrent-safely.
 func Print(a ...any) error {
-	printLock.Lock()
-	defer printLock.Unlock()
-	_, err := fmt.Println(a...)
-	return err
+	return printer.Print(a...)
 }
 
 // StatusPrinter returns a tracking function for transfer status.

cmd/oras/root/manifest/push.go

@@ -152,6 +152,7 @@ func pushManifest(cmd *cobra.Command, opts pushOptions) error {
 		return err
 	}
 	verbose := opts.Verbose && !opts.OutputDescriptor
+	printer := status.NewPrinter(verbose)
 	if match {
 		if err := status.PrintStatus(desc, "Exists", verbose); err != nil {
 			return err
@@ -184,7 +185,7 @@ func pushManifest(cmd *cobra.Command, opts pushOptions) error {
 		}
 		return opts.Output(os.Stdout, descJSON)
 	}
-	status.Print("Pushed", opts.AnnotatedReference())
+	printer.Print("Pushed", opts.AnnotatedReference())
 	if len(opts.extraRefs) != 0 {
 		if _, err = oras.TagBytesN(ctx, status.NewTagStatusPrinter(target), mediaType, contentBytes, opts.extraRefs, tagBytesNOpts); err != nil {
 			return err