Return result of the block when a block is passed to Logger#tag

CHANGELOG.md

@@ -1,6 +1,7 @@
 ## 1.2.8
 
 * Add `Logger#untagged` to remove previously set logging tags from a block.
+* Return result of the block when a block is passed to `Logger#tag`.
 
 ## 1.2.7
 

lib/lumberjack/logger.rb

@@ -361,10 +361,11 @@ def tag(tags, &block)
         push_thread_local_value(:lumberjack_logger_tags, merged_tags, &block)
       elsif thread_tags
         thread_tags.merge!(tags)
+        nil
       else
         @tags.merge!(tags)
+        nil
       end
-      nil
     end
 
     # Remove a tag from the current tag context. If this is called inside a block to a

spec/logger_spec.rb

@@ -544,6 +544,11 @@
           expect(logger.tags).to eq("foo" => "bar", "other" => 1)
         end
       end
+
+      it "should return the result of the block" do
+        result = logger.tag(tag: 1) { :foo }
+        expect(result).to eq :foo
+      end
     end
 
     describe "untagged" do
@@ -598,6 +603,11 @@
           expect(logger.tags).to eq({"foo" => "bar"})
         end
       end
+
+      it "should return the result of the block" do
+        result = logger.untagged { :foo }
+        expect(result).to eq :foo
+      end
     end
 
     describe "log helper methods" do

spec/lumberjack_spec.rb

@@ -55,6 +55,16 @@
         expect(Lumberjack.context_tags).to eq("fog" => "bar")
       end
     end
+
+    it "should return the result of the context block" do
+      result = Lumberjack.context { :foo }
+      expect(result).to eq :foo
+    end
+
+    it "should return the result of the use_context block" do
+      result = Lumberjack.use_context(nil) { :foo }
+      expect(result).to eq :foo
+    end
   end
 
   describe "unit of work" do