From 3efcba2d6592f1c3683859e9e6f218a6998427f1 Mon Sep 17 00:00:00 2001
From: Kyle Clemens <git@kyleclemens.com>
Date: Mon, 3 Sep 2018 16:44:51 -0400
Subject: [PATCH] refactor: add feature gates for use as a model library

---
 Cargo.toml | 18 ++++++++++++++----
 src/lib.rs |  7 +++++--
 2 files changed, 19 insertions(+), 6 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index 87772fa..84e2605 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,11 +7,21 @@ authors = ["Kyle Clemens <git@kyleclemens.com>"]
 
 edition = "2018"
 
+[features]
+default-features = []
+
+logic = [
+  "cssparser",
+  "failure",
+  "lazy_static",
+  "scraper",
+]
+
 [dependencies]
-cssparser = "0.23"
-failure = "0.1"
-lazy_static = "1"
-scraper = "0.7"
+cssparser = { version = "0.23", optional = true }
+failure = { version = "0.1", optional = true }
+lazy_static = { version = "1", optional = true }
+scraper = { version = "0.7", optional = true }
 serde = "1"
 serde_derive = "1"
 serde_json = "1"
diff --git a/src/lib.rs b/src/lib.rs
index ce38930..27cab38 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,9 +1,12 @@
 #![feature(macro_at_most_once_rep)]
 
-#[macro_use] extern crate failure;
-#[macro_use] extern crate lazy_static;
+#[cfg(feature = "logic")] #[macro_use] extern crate failure;
+#[cfg(feature = "logic")] #[macro_use] extern crate lazy_static;
 #[macro_use] extern crate serde_derive;
 
+#[cfg(feature = "logic")]
 pub mod error;
+#[cfg(feature = "logic")]
 pub mod logic;
+
 pub mod models;