reorder some source files

pkg/gcrcli/imagepush.go

@@ -0,0 +1,121 @@
+/*
+ * Copyright 2026 Oleg Borodin <onborodin@gmail.com>
+ *
+ * This work is published and licensed under a Creative Commons
+ * Attribution-NonCommercial-NoDerivatives 4.0 International License.
+ *
+ * Distribution of this work is permitted, but commercial use and
+ * modifications are strictly prohibited.
+ */
+package gcrcli
+
+import (
+	"context"
+	"fmt"
+	"os"
+
+	"mstore/pkg/auxtool"
+	"mstore/pkg/auxutar"
+
+	"github.com/google/go-containerregistry/pkg/authn"
+	"github.com/google/go-containerregistry/pkg/crane"
+	"github.com/google/go-containerregistry/pkg/name"
+	pkg "github.com/google/go-containerregistry/pkg/v1"
+	"github.com/google/go-containerregistry/pkg/v1/layout"
+	"github.com/google/go-containerregistry/pkg/v1/remote/transport"
+)
+
+func (cli *Client) PushImage(ctx context.Context, filepath, imagepath string) error {
+	var err error
+
+	imagepath, username, password, err := repackReference(imagepath)
+	if err != nil {
+		return err
+	}
+	options := make([]crane.Option, 0)
+	options = append(options, crane.WithContext(ctx))
+	if username != "" && password != "" {
+		ref, err := name.ParseReference(imagepath)
+		if err != nil {
+			return err
+		}
+		repo := ref.Context()
+		if err != nil {
+			return err
+		}
+		defaultTransport := NewRoundTripper(cli.skipTLSVerify)
+
+		scopes := []string{
+			repo.Scope(transport.PushScope),
+			repo.Scope(transport.PullScope),
+		}
+
+		regName := repo.RegistryStr()
+		reg, err := name.NewRegistry(regName)
+		if err != nil {
+			return err
+		}
+		basicAuth := &authn.Basic{
+			Username: username,
+			Password: password,
+		}
+
+		authTransport, err := transport.NewWithContext(ctx, reg, basicAuth, defaultTransport, scopes)
+		if err != nil {
+			return err
+		}
+		options = append(options, crane.WithTransport(authTransport))
+	} else {
+		defaultTransport := NewRoundTripper(cli.skipTLSVerify)
+		options = append(options, crane.WithTransport(defaultTransport))
+	}
+
+	dstdir := auxtool.MakeTmpFilename(filepath)
+	err = auxutar.Unarchive(filepath, dstdir)
+	if err != nil {
+		os.RemoveAll(dstdir)
+		return err
+	}
+	image, err := imageLoader(dstdir)
+	if err != nil {
+		return err
+	}
+	err = crane.Push(image, imagepath, options...)
+	if err != nil {
+		return err
+	}
+	err = os.RemoveAll(dstdir)
+	if err != nil {
+		return err
+	}
+	return err
+}
+
+func imageLoader(dirPath string) (pkg.Image, error) {
+	var err error
+	var res pkg.Image
+	layoutPath, err := layout.FromPath(dirPath)
+	if err != nil {
+		return res, err
+	}
+	imageIndex, err := layoutPath.ImageIndex()
+	if err != nil {
+		return res, err
+	}
+	indexManifest, err := imageIndex.IndexManifest()
+	if err != nil {
+		return res, err
+	}
+	if indexManifest == nil {
+		err := fmt.Errorf("Empty indexManifest referency")
+		return res, err
+	}
+
+	manifest := indexManifest.Manifests[0]
+	image, err := layoutPath.Image(manifest.Digest)
+	if err != nil {
+		return res, err
+	}
+	res = image
+	return res, err
+}