index file contents like pdf, html, doc, etc.. using solr, sunspot gem, paperclip, s3 and Rails 3

sunspot_cell.rb

= Sunspot Cell

This plugin adds Cell support (for indexing rich documents like pdf, docs, html, etc...) to Sunspot (developed against Sunspot 1.2.1).
Support Paperclip and S3 Storage

The code is based on the patch included here:
http://outoftime.lighthouseapp.com/projects/20339/tickets/98-solr-cell

== Requirements

* Sunspot gem installed

* Solr Cell libraries

* Adjustments to the Solr +schema.xml+

== Install

=== Get dependencies (Solr Cell libraries & schema.xml)

You can get these from: 

 http://www.chebyte.com/solr-chebyte.tgz

then in the root rails app descompresses this

 #root-app> tar -xvzf solr-chebyte.tgz

note: if you want to put it manually, you have to put jars in solr/lib and schema.xml in solr/conf

=== Install Plugin

Add sunspot gem to Gemfile:
 
 gem 'sunspot_rails', '~> 1.2.1'

Install sunspot cell plugin
 
 #root-app> rails plugins install git://github.com/chebyte/sunspot_cell.git

== Usage

  class Doc
    searchable do
       text :title
       attachment :file
     end
  end

== Paperclip & S3 Storage

  class Doc
    searchable do
       text :title
       attachment :attached_file
     end

  private
    def attached_file
      URI.parse(file.expiring_url(60))
    end
  end

The url of http://www.chebyte.com/solr-chebyte.tgz is now a 404/invalid .