pkg/bindings: Support writing image push progress to specified io.Writer

Currently bindings writes image push progress to os.Stderr.

Since os.Stderr is inconvenience for bindings caller to
process the progress messages, Added this support.

Signed-off-by: Naoto Kobayashi <naoto.kobayashi4c@gmail.com>

4 files changed, 28 insertions, 0 deletions

diff --git a/pkg/bindings/images/push.go b/pkg/bindings/images/push.go
index 8db3726e6..5069dd780 100644
--- a/pkg/bindings/images/push.go
+++ b/pkg/bindings/images/push.go
@@ -62,6 +62,8 @@ func Push(ctx context.Context, source string, destination string, options *PushO
 	writer := io.Writer(os.Stderr)
 	if options.GetQuiet() {
 		writer = ioutil.Discard
+	} else if progressWriter := options.GetProgressWriter(); progressWriter != nil {
+		writer = progressWriter
 	}
 
 	dec := json.NewDecoder(response.Body)
diff --git a/pkg/bindings/images/types.go b/pkg/bindings/images/types.go
index 9783a8e18..7b28c499e 100644
--- a/pkg/bindings/images/types.go
+++ b/pkg/bindings/images/types.go
@@ -1,6 +1,8 @@
 package images
 
 import (
+	"io"
+
 	buildahDefine "github.com/containers/buildah/define"
 )
 
@@ -131,6 +133,10 @@ type PushOptions struct {
 	Format *string
 	// Password for authenticating against the registry.
 	Password *string
+	// ProgressWriter is a writer where push progress are sent.
+	// Since API handler for image push is quiet by default, WithQuiet(false) is necessary for
+	// the writer to receive progress messages.
+	ProgressWriter *io.Writer
 	// SkipTLSVerify to skip HTTPS and certificate verification.
 	SkipTLSVerify *bool
 	// RemoveSignatures Discard any pre-existing signatures in the image.
diff --git a/pkg/bindings/images/types_push_options.go b/pkg/bindings/images/types_push_options.go
index 1ae031824..817d873f8 100644
--- a/pkg/bindings/images/types_push_options.go
+++ b/pkg/bindings/images/types_push_options.go
@@ -2,6 +2,7 @@
 package images
 
 import (
+	"io"
 	"net/url"
 
 	"github.com/containers/podman/v4/pkg/bindings/internal/util"
@@ -107,6 +108,21 @@ func (o *PushOptions) GetPassword() string {
 	return *o.Password
 }
 
+// WithProgressWriter set field ProgressWriter to given value
+func (o *PushOptions) WithProgressWriter(value io.Writer) *PushOptions {
+	o.ProgressWriter = &value
+	return o
+}
+
+// GetProgressWriter returns value of field ProgressWriter
+func (o *PushOptions) GetProgressWriter() io.Writer {
+	if o.ProgressWriter == nil {
+		var z io.Writer
+		return z
+	}
+	return *o.ProgressWriter
+}
+
 // WithSkipTLSVerify set field SkipTLSVerify to given value
 func (o *PushOptions) WithSkipTLSVerify(value bool) *PushOptions {
 	o.SkipTLSVerify = &value
diff --git a/pkg/bindings/test/images_test.go b/pkg/bindings/test/images_test.go
index 8f76ce456..9c9796661 100644
--- a/pkg/bindings/test/images_test.go
+++ b/pkg/bindings/test/images_test.go
@@ -379,6 +379,10 @@ var _ = Describe("Podman images", func() {
 		Expect(err).To(HaveOccurred())
 	})
 
+	It("Image Push", func() {
+		Skip("TODO: implement test for image push to registry")
+	})
+
 	It("Build no options", func() {
 		results, err := images.Build(bt.conn, []string{"fixture/Containerfile"}, entities.BuildOptions{})
 		Expect(err).ToNot(HaveOccurred())