From 2a5cf11ee27c0faeda1009d6a8099882230038fc Mon Sep 17 00:00:00 2001
From: Alfred Xing <alfredxing@users.noreply.github.com>
Date: Sun, 23 Nov 2014 15:38:00 -0800
Subject: [PATCH] Add --no-metadata option

---
 lib/jekyll/command.rb  |  1 +
 lib/jekyll/metadata.rb | 10 ++++++++--
 lib/jekyll/site.rb     |  2 +-
 3 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/lib/jekyll/command.rb b/lib/jekyll/command.rb
index 423c3202..658ce597 100644
--- a/lib/jekyll/command.rb
+++ b/lib/jekyll/command.rb
@@ -59,6 +59,7 @@ module Jekyll
         c.option 'quiet',   '-q', '--quiet', 'Silence output.'
         c.option 'verbose', '-V', '--verbose', 'Print verbose output.'
         c.option 'full_rebuild', '-f', '--full-rebuild', 'Clean the site before rebuilding.'
+        c.option 'no_metadata', '--no-metadata', 'Disable incremental regeneration.'
       end
 
     end
diff --git a/lib/jekyll/metadata.rb b/lib/jekyll/metadata.rb
index 68a31a05..3e242d69 100644
--- a/lib/jekyll/metadata.rb
+++ b/lib/jekyll/metadata.rb
@@ -46,6 +46,8 @@ module Jekyll
     #
     # Returns a boolean.
     def regenerate?(path, add = true)
+      return true if site.config['no_metadata']
+
       # Check for path in cache
       if @cache.has_key? path
         return @cache[path]
@@ -73,7 +75,7 @@ module Jekyll
     #
     # Returns nothing.
     def add_dependency(path, dependency)
-      return if @metadata[path].nil?
+      return if (@metadata[path].nil? || site.config['no_metadata'])
 
       @metadata[path]["deps"] << dependency unless @metadata[path]["deps"].include? dependency
       regenerate? dependency
@@ -102,7 +104,11 @@ module Jekyll
     #
     # Returns the read metadata.
     def read_metadata
-      @metadata = (File.file?(metadata_file) && !(site.config['full_rebuild'])) ? SafeYAML.load(File.read(metadata_file)) : {}
+      @metadata = if !(site.config['full_rebuild'] || site.config['no_metadata']) && File.file?(metadata_file)
+        SafeYAML.load(File.read(metadata_file))
+      else
+        {}
+      end
     end
   end
 end
diff --git a/lib/jekyll/site.rb b/lib/jekyll/site.rb
index 738cae0e..69f11a75 100644
--- a/lib/jekyll/site.rb
+++ b/lib/jekyll/site.rb
@@ -328,7 +328,7 @@ module Jekyll
           (item.respond_to?(:data) && item.data['regenerate'])
         )
       }
-      metadata.write
+      metadata.write unless site.config['no_metadata']
     end
 
     # Construct a Hash of Posts indexed by the specified Post attribute.