// Given a set of changes, downloads the associated revisions.
func pullChanges(c *api.SyncGatewayClient, changes []*api.Change, wakeup time.Time) (int, interface{}) {
docs := []api.BulkDocsEntry{}
var newLastSeq interface{}
for _, change := range changes {
newLastSeq = change.Seq
for _, changeItem := range change.Changes {
bulk := api.BulkDocsEntry{ID: change.ID, Rev: changeItem.Rev}
docs = append(docs, bulk)
}
}
if len(docs) == 1 {
if !c.GetSingleDoc(docs[0].ID, docs[0].Rev, wakeup) {
docs = nil
glExpvars.Add("total_doc_failed_to_pull", 1)
} else {
glExpvars.Add("total_doc_pulled", 1)
}
} else {
if !c.GetBulkDocs(docs, wakeup) {
docs = nil
glExpvars.Add("total_doc_failed_to_pull", int64(len(docs)))
} else {
glExpvars.Add("total_doc_pulled", int64(len(docs)))
}
}
return len(docs), newLastSeq
}
