move rocksdb to nimbus-eth1 (#460)

sqlite ftw!

README.md

@@ -22,12 +22,6 @@ Ethereum-related utilities written in Nim. Includes things like Bloom filters, p
 ## Prerequisites
 
 - Nim & Nimble
-- RocksDB, SQLite, LMDB (required for the trie backend tests)
-
-E.g. on Ubuntu one can run:
-```
-apt install -y librocksdb-dev liblmdb-dev sqlite3
-```
 
 ## Building & Testing
 ```

eth.nimble

@@ -8,7 +8,6 @@ requires "nim >= 1.2.0",
          "nimcrypto",
          "stint",
          "secp256k1",
-         "rocksdb",
          "chronos",
          "chronicles",
          "stew",

eth/db/kvstore_rocksdb.nim

@@ -1,52 +0,0 @@
-{.push raises: [Defect].}
-
-import
-  std/os,
-  rocksdb, stew/results,
-  ./kvstore
-
-export results
-
-const maxOpenFiles = 512
-
-type
-  RocksStoreRef* = ref object of RootObj
-    store: RocksDBInstance
-
-proc get*(db: RocksStoreRef, key: openArray[byte], onData: kvstore.DataProc): KvResult[bool] =
-  db.store.get(key, onData)
-
-proc find*(db: RocksStoreRef, prefix: openArray[byte], onFind: kvstore.KeyValueProc): KvResult[int] =
-  raiseAssert "Unimplemented"
-
-proc put*(db: RocksStoreRef, key, value: openArray[byte]): KvResult[void] =
-  db.store.put(key, value)
-
-proc contains*(db: RocksStoreRef, key: openArray[byte]): KvResult[bool] =
-  db.store.contains(key)
-
-proc del*(db: RocksStoreRef, key: openArray[byte]): KvResult[void] =
-  db.store.del(key)
-
-proc close*(db: RocksStoreRef) =
-  db.store.close
-
-proc init*(
-    T: type RocksStoreRef, basePath: string, name: string,
-    readOnly = false): KvResult[T] =
-  let
-    dataDir = basePath / name / "data"
-    backupsDir = basePath / name / "backups"
-
-  try:
-    createDir(dataDir)
-    createDir(backupsDir)
-  except OSError, IOError:
-    return err("rocksdb: cannot create database directory")
-
-  var store: RocksDBInstance
-  if (let v = store.init(
-      dataDir, backupsDir, readOnly, maxOpenFiles = maxOpenFiles); v.isErr):
-    return err(v.error)
-
-  ok(T(store: store))

tests/db/all_tests.nim

@@ -1,4 +1,3 @@
 import
-  ./test_kvstore_rocksdb,
   ./test_kvstore_sqlite3,
   ./test_kvstore

tests/db/test_kvstore_rocksdb.nim

@@ -1,18 +0,0 @@
-{.used.}
-
-import
-  std/os,
-  unittest2,
-  chronicles,
-  ../../eth/db/[kvstore, kvstore_rocksdb],
-  ./test_kvstore
-
-suite "RocksStoreRef":
-  test "KvStore interface":
-    let tmp = getTempDir() / "nimbus-test-db"
-    removeDir(tmp)
-
-    let db = RocksStoreRef.init(tmp, "test")[]
-    defer: db.close()
-
-    testKvStore(kvStore db, false)