From 1b395a8f60ebdd49afb6a129b0da89a72a841f3e Mon Sep 17 00:00:00 2001
From: Jake Howard <git@theorangeone.net>
Date: Sun, 10 Sep 2017 19:09:21 +0100
Subject: [PATCH] References are meant to be optional...

---
 src/config/mod.rs  | 2 +-
 src/config/read.rs | 9 ++++++---
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/config/mod.rs b/src/config/mod.rs
index 8d16a03..029d655 100644
--- a/src/config/mod.rs
+++ b/src/config/mod.rs
@@ -16,7 +16,7 @@ pub struct Config {
     pub output: HashMap<String, PathBuf>,
     pub title: String,
     pub verbosity: u64,
-    pub references: References
+    pub references: Option<References>
 }
 
 #[derive(Debug, Serialize, Deserialize, Default, Clone)]
diff --git a/src/config/read.rs b/src/config/read.rs
index 36f7d7a..af2d6ba 100644
--- a/src/config/read.rs
+++ b/src/config/read.rs
@@ -58,10 +58,13 @@ pub fn get_output_files(conf: Value) -> HashMap<String, PathBuf> {
     return output_map;
 }
 
-pub fn get_references(config: Value) -> References {
+pub fn get_references(config: Value) -> Option<References> {
+    if config.get("references").is_none() {
+        return None;
+    }
     let references = config.get("references").unwrap();
-    return References {
+    return Some(References {
         bibliography: resolve_path(references.get("bibliography").unwrap().as_str().unwrap().into()),
         csl: unpack_csl(references.get("csl").unwrap().as_str().unwrap().into())
-    }
+    });
 }