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fix bug that gen layer tar contains duplicated files #4428

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merged 1 commit into from
Nov 22, 2023
Merged

fix bug that gen layer tar contains duplicated files #4428

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13 changes: 13 additions & 0 deletions cache/blobs_linux.go
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Original file line number Diff line number Diff line change
Expand Up @@ -43,14 +43,27 @@ func (sr *immutableRef) tryComputeOverlayBlob(ctx context.Context, lower, upper
if err != nil {
return emptyDesc, false, errors.Wrap(err, "failed to open writer")
}

defer func() {
if cw != nil {
// after commit success cw will be set to nil, if cw isn't nil, error
// happened before commit, we should abort this ingest, and because the
// error may incured by ctx cancel, use a new context here. And since
// cm.Close will unlock this ref in the content store, we invoke abort
// to remove the ingest root in advance.
if aerr := sr.cm.ContentStore.Abort(context.Background(), ref); aerr != nil {
bklog.G(ctx).WithError(aerr).Warnf("failed to abort writer %q", ref)
}
if cerr := cw.Close(); cerr != nil {
bklog.G(ctx).WithError(cerr).Warnf("failed to close writer %q", ref)
}
}
}()

if err = cw.Truncate(0); err != nil {
return emptyDesc, false, errors.Wrap(err, "failed to truncate writer")
}

bufW := bufio.NewWriterSize(cw, 128*1024)
var labels map[string]string
if compressorFunc != nil {
Expand Down