From 1726701e2def20759aeda84a22c5e5b4e7655080 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=A1=D0=B5=D1=80=D0=B3=D0=B5=D0=B9=20=D0=9F=D1=80=D0=BE?=
 =?UTF-8?q?=D1=85=D0=BE=D1=80=D0=BE=D0=B2?= <seriy.pr@gmail.com>
Date: Sat, 16 Feb 2019 16:15:09 +0100
Subject: [PATCH] Add xref check to travis

---
 .travis.yml  | 1 +
 rebar.config | 9 +++++++++
 2 files changed, 10 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 1a27536..ac185d6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,4 +6,5 @@ otp_release:
   #- 18.3 not supported (string:lexemes/2, tricky binary comprehension, map typespec with `:=`, ?assertEqual/3)
 script:
   - ./rebar3 compile
+  - ./rebar3 xref
   - ./rebar3 eunit
diff --git a/rebar.config b/rebar.config
index 03a9ca2..8973ac9 100644
--- a/rebar.config
+++ b/rebar.config
@@ -6,6 +6,15 @@
         {lager, "3.6.3"}
         ]}.
 
+{xref_checks,
+ [undefined_function_calls,
+  undefined_functions,
+  locals_not_used,
+  %% exports_not_used,
+  deprecated_function_calls,
+  deprecated_functions
+  ]}.
+
 {relx, [{release, { mtp_proxy, "0.1.0" },
          [lager,
           ranch,