Merge pull request #225 from bkeepers/bom

Gracefully handle files with UTF-8 BOM

lib/dotenv/environment.rb

@@ -14,7 +14,7 @@ def load
     end
 
     def read
-      File.read(@filename)
+      File.open(@filename, "rb:bom|utf-8") { |file| file.read }
     end
 
     def apply

spec/dotenv_spec.rb

@@ -132,6 +132,19 @@
     end
   end
 
+  describe "Unicode" do
+    subject { fixture_path("bom.env") }
+
+    it "loads a file with a Unicode BOM" do
+      expect(Dotenv.load(subject)).to eql({"BOM" => "UTF-8"})
+    end
+
+    it "fixture file has UTF-8 BOM" do
+      contents = File.open(subject, "rb") { |f| f.read }.force_encoding("UTF-8")
+      expect(contents).to start_with("\xEF\xBB\xBF")
+    end
+  end
+
   def expand(path)
     File.expand_path path
   end

spec/fixtures/bom.env

@@ -0,0 +1 @@
+BOM=UTF-8