91 lines
2.0 KiB
Go
91 lines
2.0 KiB
Go
/*
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* Copyright 2026 Oleg Borodin <onborodin@gmail.com>
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*
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* This work is published and licensed under a Creative Commons
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* Attribution-NonCommercial-NoDerivatives 4.0 International License.
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*
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* Distribution of this work is permitted, but commercial use and
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* modifications are strictly prohibited.
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*/
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package client
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import (
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"context"
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"os"
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"mstore/pkg/auxtool"
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"mstore/pkg/auxutar"
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"github.com/google/go-containerregistry/pkg/authn"
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"github.com/google/go-containerregistry/pkg/crane"
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"github.com/google/go-containerregistry/pkg/name"
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"github.com/google/go-containerregistry/pkg/v1/remote/transport"
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)
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func (cli *Client) PullImage(ctx context.Context, filepath, imagepath string) error {
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var err error
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imagepath, username, password, err := repackReference(imagepath)
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if err != nil {
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return err
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}
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options := make([]crane.Option, 0)
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options = append(options, crane.WithContext(ctx))
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if username != "" && password != "" {
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ref, err := name.ParseReference(imagepath)
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if err != nil {
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return err
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}
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repo := ref.Context()
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if err != nil {
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return err
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}
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defaultTransport := &roundTripper{}
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scopes := []string{repo.Scope(transport.PullScope)}
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regName := repo.RegistryStr()
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reg, err := name.NewRegistry(regName)
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if err != nil {
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return err
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}
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basicAuth := &authn.Basic{
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Username: username,
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Password: password,
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}
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authTransport, err := transport.NewWithContext(ctx, reg, basicAuth, defaultTransport, scopes)
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if err != nil {
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return err
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}
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options = append(options, crane.WithTransport(authTransport))
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} else {
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transport := &roundTripper{}
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options = append(options, crane.WithTransport(transport))
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}
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image, err := crane.Pull(imagepath, options...)
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if err != nil {
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return err
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}
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dstdir := auxtool.MakeTmpFilename(filepath)
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err = os.MkdirAll(dstdir, 0750)
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if err != nil {
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return err
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}
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err = crane.SaveOCI(image, dstdir)
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if err != nil {
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return err
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}
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err = auxutar.Archive(dstdir, filepath)
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if err != nil {
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return err
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}
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err = os.RemoveAll(dstdir)
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if err != nil {
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return err
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}
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return err
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}
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