From 878f091367851764bf801a49a60acfbbc8b5d3fa Mon Sep 17 00:00:00 2001
From: Tpt <thomas@pellissier-tanon.fr>
Date: Wed, 7 Nov 2018 13:32:46 +0100
Subject: [PATCH] Makes RocksDB dependency optional

---
 lib/Cargo.toml       | 2 +-
 lib/src/lib.rs       | 1 +
 lib/src/store/mod.rs | 2 ++
 3 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/Cargo.toml b/lib/Cargo.toml
index 59f4c773..cc4af126 100644
--- a/lib/Cargo.toml
+++ b/lib/Cargo.toml
@@ -16,7 +16,7 @@ travis-ci = { repository = "Tpt/rudf" }
 
 [dependencies]
 lazy_static = "1"
-rocksdb = "0.10"
+rocksdb = { version = "0.10", optional = true }
 url = "1"
 uuid = { version = "0.7", features = ["v4"] }
 bzip2 = "0.3"
diff --git a/lib/src/lib.rs b/lib/src/lib.rs
index 2254161d..80a577ec 100644
--- a/lib/src/lib.rs
+++ b/lib/src/lib.rs
@@ -39,6 +39,7 @@ extern crate language_tags;
 extern crate num_traits;
 extern crate ordered_float;
 extern crate quick_xml;
+#[cfg(feature = "rocksdb")]
 extern crate rocksdb;
 extern crate rust_decimal;
 extern crate url;
diff --git a/lib/src/store/mod.rs b/lib/src/store/mod.rs
index c0de7847..e2222901 100644
--- a/lib/src/store/mod.rs
+++ b/lib/src/store/mod.rs
@@ -4,8 +4,10 @@ pub(crate) mod encoded;
 pub mod isomorphism;
 mod memory;
 pub(crate) mod numeric_encoder;
+#[cfg(feature = "rocksdb")]
 mod rocksdb;
 
 pub use store::memory::MemoryDataset;
 pub use store::memory::MemoryGraph;
+#[cfg(feature = "rocksdb")]
 pub use store::rocksdb::RocksDbDataset;