Use warn not puts for indexing

Author: scsmith

Rules

@@ -7,9 +7,8 @@ ignore '*/_*'
 preprocess do
   next if ENV['NANOC_ENV'] == 'development'
 
-  puts "Preprocessing"
+  warn "Preprocessing"
   Nanoc::Filters::AlgoliaFilter.new(config: config).destroy_index
-  puts "Index destroyed"
 end
 
 compile '*' do

lib/algolia.rb

@@ -55,7 +55,7 @@ def destroy_index
       return if @skip_index
 
       @index.clear_objects
-      puts "Index #{@index.name} cleared"
+      warn "Index #{@index.name} cleared"
     end
 
     def run(content, params = {})
@@ -72,7 +72,7 @@ def run(content, params = {})
           raw: content
         ).wait
 
-        puts "Indexed #{item.identifier} in Algolia"
+        warn "Indexed #{item.identifier} in Algolia"
       end
 
       params[:preview] ? extract_text(content) : content