/**
* Create an index with a key of `{<key>: 1}` and a `name` of <key>.
*/
Status createIndex(OperationContext* opCtx, NamespaceString collNs, std::string key) {
Collection* coll = nullptr;
BSONObjBuilder builder;
{
BSONObjBuilder keyObj;
builder.append("key", keyObj.append(key, 1).done());
}
BSONObj spec = builder.append("name", key).append("ns", collNs.ns()).append("v", 2).done();
auto descriptor =
stdx::make_unique<IndexDescriptor>(coll, IndexNames::findPluginName(spec), spec);
DatabaseCatalogEntry* dbce = _storageEngine->getDatabaseCatalogEntry(opCtx, collNs.db());
CollectionCatalogEntry* cce = dbce->getCollectionCatalogEntry(collNs.ns());
auto ret = cce->prepareForIndexBuild(opCtx, descriptor.get());
if (!ret.isOK()) {
return ret;
}
cce->indexBuildSuccess(opCtx, key);
return Status::OK();
}
