SERVER-41965 Change repair to only rebuild indexes on necessary collections

1 files changed, 76 insertions, 0 deletions

diff --git a/src/mongo/db/rebuild_indexes.h b/src/mongo/db/rebuild_indexes.h
new file mode 100644
index 00000000000..1654e359882
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+++ b/src/mongo/db/rebuild_indexes.h
@@ -0,0 +1,76 @@
+/**
+ *    Copyright (C) 2020-present MongoDB, Inc.
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the Server Side Public License, version 1,
+ *    as published by MongoDB, Inc.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    Server Side Public License for more details.
+ *
+ *    You should have received a copy of the Server Side Public License
+ *    along with this program. If not, see
+ *    <http://www.mongodb.com/licensing/server-side-public-license>.
+ *
+ *    As a special exception, the copyright holders give permission to link the
+ *    code of portions of this program with the OpenSSL library under certain
+ *    conditions as described in each individual source file and distribute
+ *    linked combinations including the program with the OpenSSL library. You
+ *    must comply with the Server Side Public License in all respects for
+ *    all of the code used other than as permitted herein. If you modify file(s)
+ *    with this exception, you may extend this exception to your version of the
+ *    file(s), but you are not obligated to do so. If you do not wish to do so,
+ *    delete this exception statement from your version. If you delete this
+ *    exception statement from all source files in the program, then also delete
+ *    it in the license file.
+ */
+
+#pragma once
+
+#include <functional>
+#include <string>
+
+#include "mongo/bson/bsonobj.h"
+#include "mongo/db/record_id.h"
+
+namespace mongo {
+class Collection;
+class OperationContext;
+
+typedef std::pair<std::vector<std::string>, std::vector<BSONObj>> IndexNameObjs;
+
+/**
+ * Returns a pair of parallel vectors. The first item is the index name. The second is the
+ * `BSONObj` "index spec" with an index name matching the `filter`.
+ *
+ * @param filter is a predicate that is passed in an index name, returning true if the index
+ *               should be included in the result.
+ */
+StatusWith<IndexNameObjs> getIndexNameObjs(OperationContext* opCtx,
+                                           RecordId catalogId,
+                                           std::function<bool(const std::string&)> filter =
+                                               [](const std::string& indexName) { return true; });
+
+/**
+ * Rebuilds the indexes provided by the 'indexSpecs' on the given collection.
+ * One example usage is when a 'dropIndex' command is rolled back. The dropped index must be remade.
+ * When 'repair' is set to kYes, this function will delete corrupt records when found, rather than
+ * crashing.
+ */
+enum class RepairData { kYes, kNo };
+Status rebuildIndexesOnCollection(OperationContext* opCtx,
+                                  Collection* collection,
+                                  const std::vector<BSONObj>& indexSpecs,
+                                  RepairData repair);
+
+/**
+ * Rebuilds the indexes provided by the 'indexSpecs' on the given collection.
+ * One example usage is when a 'dropIndex' command is rolled back. The dropped index must be remade.
+ */
+Status rebuildIndexesOnCollection(OperationContext* opCtx,
+                                  Collection* collection,
+                                  const std::vector<BSONObj>& indexSpecs);
+
+}  // namespace mongo