chore: featuer gate rocksdb (#20170)

Author: mattsse

crates/storage/provider/Cargo.toml

@@ -64,7 +64,7 @@ rayon.workspace = true
 
 [target.'cfg(unix)'.dependencies]
 # rocksdb: jemalloc is recommended production workload
-rocksdb = { workspace = true, features = ["jemalloc"] }
+rocksdb = { workspace = true, features = ["jemalloc"], optional = true }
 
 [dev-dependencies]
 reth-db = { workspace = true, features = ["test-utils"] }
@@ -86,6 +86,7 @@ rand.workspace = true
 tokio = { workspace = true, features = ["sync", "macros", "rt-multi-thread"] }
 
 [features]
+rocksdb = ["dep:rocksdb"]
 test-utils = [
     "reth-db/test-utils",
     "reth-nippy-jar/test-utils",

crates/storage/provider/src/providers/mod.rs

@@ -31,9 +31,9 @@ pub use consistent::ConsistentProvider;
 
 // RocksDB currently only supported on Unix platforms
 // Windows support is planned for future releases
-#[cfg(unix)]
+#[cfg(all(unix, feature = "rocksdb"))]
 mod rocksdb;
-#[cfg(unix)]
+#[cfg(all(unix, feature = "rocksdb"))]
 pub use rocksdb::{RocksDBBuilder, RocksDBProvider};
 
 /// Helper trait to bound [`NodeTypes`] so that combined with database they satisfy