/usr/share/gocode/src/github.com/jacobsa/gcloud/gcs/gcsutil/list_prefix.go is in golang-github-jacobsa-gcloud-dev 0.0~git20150709-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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//
// 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 gcsutil
import (
"fmt"
"github.com/jacobsa/gcloud/gcs"
"golang.org/x/net/context"
)
// List objects in the supplied bucket whose name starts with the given prefix.
// Write them into the supplied channel in an undefined order.
func ListPrefix(
ctx context.Context,
bucket gcs.Bucket,
prefix string,
objects chan<- *gcs.Object) (err error) {
req := &gcs.ListObjectsRequest{
Prefix: prefix,
}
// List until we run out.
for {
// Fetch the next batch.
var listing *gcs.Listing
listing, err = bucket.ListObjects(ctx, req)
if err != nil {
err = fmt.Errorf("ListObjects: %v", err)
return
}
// Pass on each object.
for _, o := range listing.Objects {
select {
case objects <- o:
// Cancelled?
case <-ctx.Done():
err = ctx.Err()
return
}
}
// Are we done?
if listing.ContinuationToken == "" {
break
}
req.ContinuationToken = listing.ContinuationToken
}
return
}
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