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file_walker.go
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file_walker.go
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// Copyright 2020-2023 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 protostatstorage
import (
"context"
"io"
"github.com/bufbuild/buf/private/pkg/storage"
"go.uber.org/multierr"
)
type fileWalker struct {
readBucket storage.ReadBucket
}
func newFileWalker(readBucket storage.ReadBucket) *fileWalker {
return &fileWalker{
readBucket: storage.MapReadBucket(
readBucket,
storage.MatchPathExt(".proto"),
),
}
}
func (f *fileWalker) Walk(ctx context.Context, fu func(io.Reader) error) error {
return f.readBucket.Walk(
ctx,
"",
func(objectInfo storage.ObjectInfo) (retErr error) {
readObjectCloser, err := f.readBucket.Get(ctx, objectInfo.Path())
if err != nil {
return err
}
defer func() {
retErr = multierr.Append(retErr, readObjectCloser.Close())
}()
return fu(readObjectCloser)
},
)
}