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read_bucket_closer.go
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read_bucket_closer.go
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// Copyright 2020-2024 Buf Technologies, Inc.
//
// 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 internal
import (
"context"
"github.com/bufbuild/buf/private/buf/buftarget"
"github.com/bufbuild/buf/private/pkg/normalpath"
"github.com/bufbuild/buf/private/pkg/storage"
"github.com/bufbuild/buf/private/pkg/storage/storagemem"
)
var _ ReadBucketCloser = &readBucketCloser{}
type readBucketCloser struct {
storage.ReadBucketCloser
subDirPath string
}
func newReadBucketCloser(
storageReadBucketCloser storage.ReadBucketCloser,
bucketTargeting buftarget.BucketTargeting,
) *readBucketCloser {
normalizedSubDirPath := normalpath.Normalize(bucketTargeting.SubDirPath())
return &readBucketCloser{
ReadBucketCloser: storageReadBucketCloser,
subDirPath: normalizedSubDirPath,
}
}
func newReadBucketCloserForReadWriteBucket(
readWriteBucket ReadWriteBucket,
) *readBucketCloser {
return &readBucketCloser{
ReadBucketCloser: storage.NopReadBucketCloser(readWriteBucket),
subDirPath: readWriteBucket.SubDirPath(),
}
}
func (r *readBucketCloser) SubDirPath() string {
return r.subDirPath
}
func (r *readBucketCloser) copyToInMemory(ctx context.Context) (*readBucketCloser, error) {
storageReadBucket, err := storagemem.CopyReadBucket(ctx, r.ReadBucketCloser)
if err != nil {
return nil, err
}
return &readBucketCloser{
ReadBucketCloser: compositeStorageReadBucketCloser{
ReadBucket: storageReadBucket,
closeFunc: r.ReadBucketCloser.Close,
},
subDirPath: r.subDirPath,
}, nil
}
type compositeStorageReadBucketCloser struct {
storage.ReadBucket
closeFunc func() error
}
func (c compositeStorageReadBucketCloser) Close() error {
if c.closeFunc != nil {
return c.closeFunc()
}
return nil
}