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// Copyright 2020 Google LLC All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package remote
import (
"github.com/google/go-containerregistry/pkg/name"
"golang.org/x/sync/errgroup"
)
// MultiWrite writes the given Images or ImageIndexes to the given refs, as
// efficiently as possible, by deduping shared layer blobs while uploading them
// in parallel.
func MultiWrite(todo map[name.Reference]Taggable, options ...Option) (rerr error) {
o, err := makeOptions(options...)
if err != nil {
return err
}
if o.progress != nil {
defer func() { o.progress.Close(rerr) }()
}
p := newPusher(o)
g, ctx := errgroup.WithContext(o.context)
g.SetLimit(o.jobs)
for ref, t := range todo {
ref, t := ref, t
g.Go(func() error {
return p.Push(ctx, ref, t)
})
}
return g.Wait()
}
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