Allow dbBackend == none to compile (#1996)

* Allow dbBackend == none to compile

* Fix copyright year

nimbus/db/core_db/persistent.nim

@@ -1,5 +1,5 @@
 # Nimbus
-# Copyright (c) 2023 Status Research & Development GmbH
+# Copyright (c) 2023-2024 Status Research & Development GmbH
 # Licensed under either of
 #  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
 #    http://www.apache.org/licenses/LICENSE-2.0)
@@ -17,11 +17,18 @@
 
 import
   ../aristo,  
-  ./backend/[aristo_rocksdb, legacy_rocksdb],
-  ./memory_only
+  ./memory_only,
+  ../select_backend
+
+export
+  memory_only
+
+# Allow hive sim to compile with dbBackend == none
+when dbBackend == rocksdb:
+  import 
+    ./backend/[aristo_rocksdb, legacy_rocksdb]
     
   export
-  memory_only,
     toRocksStoreRef
 
 proc newCoreDbRef*(
@@ -32,6 +39,7 @@ proc newCoreDbRef*(
   ##
   ## Note: Using legacy notation `newCoreDbRef()` rather than
   ## `CoreDbRef.init()` because of compiler coughing.
+  when dbBackend == rocksdb:
     when dbType == LegacyDbPersistent:
       newLegacyPersistentCoreDbRef path
   
@@ -50,6 +58,7 @@ proc newCoreDbRef*(
   ##
   ## Note: Using legacy notation `newCoreDbRef()` rather than
   ## `CoreDbRef.init()` because of compiler coughing.
+  when dbBackend == rocksdb:
     when dbType == AristoDbRocks:
       newAristoRocksDbCoreDbRef(path, qlr)
   

nimbus/sync/snap/worker/db/snapdb_accounts.nim

@@ -1,5 +1,5 @@
 # nimbus-eth1
-# Copyright (c) 2021 Status Research & Development GmbH
+# Copyright (c) 2021-2024 Status Research & Development GmbH
 # Licensed under either of
 #  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
 #    http://www.apache.org/licenses/LICENSE-2.0)
@@ -20,6 +20,9 @@ import
        hexary_interpolate, hexary_inspect, hexary_paths, snapdb_desc,
        snapdb_persistent]
 
+import
+  ../../../../db/select_backend
+  
 logScope:
   topics = "snap-db"
 
@@ -63,6 +66,7 @@ proc persistentAccounts(
       ): Result[void,HexaryError]
       {.gcsafe, raises: [OSError,IOError,KeyError].} =
   ## Store accounts trie table on databse
+  when dbBackend == rocksdb:
     if ps.rockDb.isNil:
       let rc = db.persistentAccountsPut(ps.kvDb)
       if rc.isErr: return rc

nimbus/sync/snap/worker/db/snapdb_contracts.nim

@@ -1,5 +1,5 @@
 # nimbus-eth1
-# Copyright (c) 2021 Status Research & Development GmbH
+# Copyright (c) 2021-2024 Status Research & Development GmbH
 # Licensed under either of
 #  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
 #    http://www.apache.org/licenses/LICENSE-2.0)
@@ -16,6 +16,9 @@ import
   ../../range_desc,
   "."/[hexary_desc, hexary_error, snapdb_desc, snapdb_persistent]
 
+import
+  ../../../../db/select_backend
+  
 logScope:
   topics = "snap-db"
 
@@ -46,6 +49,7 @@ proc persistentContracts(
       ): Result[void,HexaryError]
       {.gcsafe, raises: [OSError,IOError,KeyError].} =
   ## Store contract codes onto permanent database
+  when dbBackend == rocksdb:
     if ps.rockDb.isNil:
       let rc = data.persistentContractPut ps.kvDb
       if rc.isErr:

nimbus/sync/snap/worker/db/snapdb_desc.nim

@@ -1,5 +1,5 @@
 # nimbus-eth1
-# Copyright (c) 2021 Status Research & Development GmbH
+# Copyright (c) 2021-2024 Status Research & Development GmbH
 # Licensed under either of
 #  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
 #    http://www.apache.org/licenses/LICENSE-2.0)
@@ -35,6 +35,8 @@ type
     ## Global, re-usable descriptor
     keyMap: Table[RepairKey,uint]    ## For debugging only (will go away)
     db: CoreDbRef                    ## General database
+    # Allow hive sim to compile with dbBackend == none
+    when dbBackend == rocksdb:
       rocky: RocksStoreRef             ## Set if rocksdb is available
 
   SnapDbBaseRef* = ref object of RootRef
@@ -69,6 +71,7 @@ proc keyPp(a: RepairKey; pv: SnapDbRef): string =
 # Private helper
 # ------------------------------------------------------------------------------
 
+when dbBackend == rocksdb:
   proc clearRockyCacheFile(rocky: RocksStoreRef): bool =
     if not rocky.isNil:
       # A cache file might hang about from a previous crash
@@ -87,6 +90,7 @@ proc init*(
     db: CoreDbRef
       ): T =
   ## Main object constructor
+  when dbBackend == rocksdb:
     T(db: db, rocky: db.backend.toRocksStoreRef)
 
 proc init*(
@@ -134,6 +138,7 @@ proc hexaDb*(ps: SnapDbBaseRef): HexaryTreeDbRef =
   ## Getter, low level access to underlying session DB
   ps.xDb
 
+when dbBackend == rocksdb:
   proc rockDb*(ps: SnapDbBaseRef): RocksStoreRef =
     ## Getter, low level access to underlying persistent rock DB interface
     ps.base.rocky
@@ -193,10 +198,12 @@ template toOpenArray*(k: ByteArray33): openArray[byte] =
 
 proc dbBackendRocksDb*(pv: SnapDbRef): bool =
   ## Returns `true` if rocksdb features are available
+  when dbBackend == rocksdb:
     not pv.rocky.isNil
 
 proc dbBackendRocksDb*(ps: SnapDbBaseRef): bool =
   ## Returns `true` if rocksdb features are available
+  when dbBackend == rocksdb:
     not ps.base.rocky.isNil
 
 proc mergeProofs*(

nimbus/sync/snap/worker/db/snapdb_storage_slots.nim

@@ -1,5 +1,5 @@
 # nimbus-eth1
-# Copyright (c) 2021 Status Research & Development GmbH
+# Copyright (c) 2021-2024 Status Research & Development GmbH
 # Licensed under either of
 #  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
 #    http://www.apache.org/licenses/LICENSE-2.0)
@@ -21,6 +21,9 @@ import
        hexary_inspect, hexary_interpolate, hexary_paths, snapdb_desc,
        snapdb_persistent]
 
+import
+  ../../../../db/select_backend
+
 logScope:
   topics = "snap-db"
 
@@ -60,6 +63,7 @@ proc persistentStorageSlots(
       ): Result[void,HexaryError]
       {.gcsafe, raises: [OSError,IOError,KeyError].} =
   ## Store accounts trie table on databse
+  when dbBackend == rocksdb:
     if ps.rockDb.isNil:
       let rc = db.persistentStorageSlotsPut(ps.kvDb)
       if rc.isErr: return rc