From 8d31d559c18b12d3d06655de2ca9c7f76c67c948 Mon Sep 17 00:00:00 2001
From: Tristan Sloughter <t@crashfast.com>
Date: Fri, 9 Nov 2018 12:22:12 -0700
Subject: check last modified time on erl files for xrl and yrl files before
 compiling

---
 src/rebar_compiler_yrl.erl | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

(limited to 'src/rebar_compiler_yrl.erl')

diff --git a/src/rebar_compiler_yrl.erl b/src/rebar_compiler_yrl.erl
index 41d93b1..9c1767e 100644
--- a/src/rebar_compiler_yrl.erl
+++ b/src/rebar_compiler_yrl.erl
@@ -3,7 +3,7 @@
 -behaviour(rebar_compiler).
 
 -export([context/1,
-         needed_files/3,
+         needed_files/4,
          dependencies/3,
          compile/4,
          clean/2]).
@@ -16,11 +16,13 @@ context(AppInfo) ->
       src_ext => ".yrl",
       out_mappings => Mappings}.
 
-needed_files(_, FoundFiles, AppInfo) ->
+needed_files(_, FoundFiles, Mappings, AppInfo) ->
     FirstFiles = [],
 
     %% Remove first files from found files
-    RestFiles = [Source || Source <- FoundFiles, not lists:member(Source, FirstFiles)],
+    RestFiles = [Source || Source <- FoundFiles,
+                           not lists:member(Source, FirstFiles),
+                           rebar_compiler:needs_compile(Source, ".erl", Mappings)],
 
     Opts = rebar_opts:get(rebar_app_info:opts(AppInfo), yrl_opts, []),
     {{FirstFiles, Opts}, {RestFiles, Opts}}.
-- 
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