From 9d10b4274bd98b47f91e0dbf18c9f40ade78bcd3 Mon Sep 17 00:00:00 2001
From: Marcelo Canina <me@marcanuy.com>
Date: Mon, 19 Jun 2017 19:13:15 -0300
Subject: [PATCH 1/2] rename Liquid 4 has_key to key

---
 lib/jekyll-gist/gist_tag.rb | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/jekyll-gist/gist_tag.rb b/lib/jekyll-gist/gist_tag.rb
index acb5f04..55a5d9b 100644
--- a/lib/jekyll-gist/gist_tag.rb
+++ b/lib/jekyll-gist/gist_tag.rb
@@ -14,10 +14,10 @@ def render(context)
         @settings = context.registers[:site].config['gist']
         if tag_contents = determine_arguments(@markup.strip)
           gist_id, filename = tag_contents[0], tag_contents[1]
-          if context.has_key?(gist_id)
+          if context.key?(gist_id)
             gist_id = context[gist_id]
           end
-          if context.has_key?(filename)
+          if context.key?(filename)
             filename = context[filename]
           end
           noscript_tag = gist_noscript_tag(gist_id, filename)

From 6b635e91b24ff04afcc14c82aca9264d89640ed5 Mon Sep 17 00:00:00 2001
From: Marcelo Canina <mcanina@gmail.com>
Date: Wed, 21 Jun 2017 01:00:44 -0300
Subject: [PATCH 2/2] Update gist_tag.rb

https://github.com/jekyll/jekyll-gist/pull/41#issuecomment-309809360
---
 lib/jekyll-gist/gist_tag.rb | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/lib/jekyll-gist/gist_tag.rb b/lib/jekyll-gist/gist_tag.rb
index 55a5d9b..0895c15 100644
--- a/lib/jekyll-gist/gist_tag.rb
+++ b/lib/jekyll-gist/gist_tag.rb
@@ -14,10 +14,10 @@ def render(context)
         @settings = context.registers[:site].config['gist']
         if tag_contents = determine_arguments(@markup.strip)
           gist_id, filename = tag_contents[0], tag_contents[1]
-          if context.key?(gist_id)
+          if context_contains_key?(context, gist_id)
             gist_id = context[gist_id]
           end
-          if context.key?(filename)
+          if context_contains_key?(context, filename)
             filename = context[filename]
           end
           noscript_tag = gist_noscript_tag(gist_id, filename)
@@ -45,6 +45,16 @@ def determine_arguments(input)
         [matched[1].strip, matched[2].strip] if matched && matched.length >= 3
       end
 
+      private
+
+      def context_contains_key?(context, key)
+        if context.respond_to?(:has_key?)
+          context.has_key?(key)
+        else
+          context.key?(key)
+        end
+      end
+
       def gist_script_tag(gist_id, filename = nil)
         url = "https://gist.github.com/#{gist_id}.js"
         url = "#{url}?file=#{filename}" unless filename.to_s.empty?