From cdae1081764fc1b8407598a26b0aff862eb4d438 Mon Sep 17 00:00:00 2001
From: groundh0g <groundh0g@codetopia.com>
Date: Sat, 28 Feb 2015 07:03:06 -0600
Subject: [PATCH] Added new JB/file_exists helper. Useful for things like using
 a larger image if available and conditionally including files. (e.g.
 "avatar_64x64.png" vs "avatar_256x256.png")

---
 _includes/JB/file_exists | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 _includes/JB/file_exists

diff --git a/_includes/JB/file_exists b/_includes/JB/file_exists
new file mode 100644
index 0000000000..f40080f1e7
--- /dev/null
+++ b/_includes/JB/file_exists
@@ -0,0 +1,26 @@
+{% comment %}<!--
+  param:  file = "/example/file.png"
+  return: file_exists_result = true
+  
+  examples:
+    {% include JB/file_exists file="/404.html" %}
+    {% if file_exists_result %}Found "/404.html"!{% else %}Did not find "/404.html".{% endif %}
+
+    {% assign filename = "/405.html" %}
+    {% include JB/file_exists file=filename %}
+    {% if file_exists_result %}Found "{{ filename }}"!{% else %}Did not find "{{ filename }}".{% endif %}
+
+  NOTE: the BREAK statement in the FOR loop assumes Liquid >= 2.5.0
+  
+-->{% endcomment %}
+
+{% assign file_exists_result = false %}
+
+{% if include.file %}
+	{% for static_file in site.static_files %}
+		{% if static_file.path == include.file %}
+			{% assign file_exists_result = true %}
+			{% break %}
+		{% endif %}
+	{% endfor %}
+{% endif %}