Add jeweler, Gemfile and specs

.rspec

@@ -0,0 +1,2 @@
+--color
+--backtrace

Gemfile

@@ -0,0 +1,12 @@
+source "http://rubygems.org"
+
+gem "activerecord", ">= 3", :require => "active_record"
+gem "sqlite3-ruby", :require => "sqlite3"
+gem "paperclip", :require => "paperclip"
+gem "paperclip-meta", :path => '.'
+
+if RUBY_VERSION < '1.9'
+  gem "ruby-debug", ">= 0.10.3"
+end
+
+gem "rspec"

Gemfile.lock

@@ -0,0 +1,54 @@
+PATH
+  remote: .
+  specs:
+    paperclip-meta (0.1)
+      paperclip
+
+GEM
+  remote: http://rubygems.org/
+  specs:
+    activemodel (3.0.3)
+      activesupport (= 3.0.3)
+      builder (~> 2.1.2)
+      i18n (~> 0.4)
+    activerecord (3.0.3)
+      activemodel (= 3.0.3)
+      activesupport (= 3.0.3)
+      arel (~> 2.0.2)
+      tzinfo (~> 0.3.23)
+    activesupport (3.0.3)
+    arel (2.0.4)
+    builder (2.1.2)
+    columnize (0.3.2)
+    diff-lcs (1.1.2)
+    i18n (0.4.2)
+    linecache (0.43)
+    paperclip (2.3.6)
+      activerecord
+      activesupport
+    rspec (2.1.0)
+      rspec-core (~> 2.1.0)
+      rspec-expectations (~> 2.1.0)
+      rspec-mocks (~> 2.1.0)
+    rspec-core (2.1.0)
+    rspec-expectations (2.1.0)
+      diff-lcs (~> 1.1.2)
+    rspec-mocks (2.1.0)
+    ruby-debug (0.10.4)
+      columnize (>= 0.1)
+      ruby-debug-base (~> 0.10.4.0)
+    ruby-debug-base (0.10.4)
+      linecache (>= 0.3)
+    sqlite3-ruby (1.3.2)
+    tzinfo (0.3.23)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  activerecord (>= 3)
+  paperclip
+  paperclip-meta!
+  rspec
+  ruby-debug (>= 0.10.3)
+  sqlite3-ruby

Rakefile

@@ -1,8 +1,34 @@
 require 'rake'
 require 'rake/testtask'
-require 'rake/rdoctask'
+require 'rspec/core'
+require 'rspec/core/rake_task'
 
-desc "Build the gem into the current directory"
-task :gem => :gemspec do
-  `gem build #{spec.name}.gemspec`
+RSpec::Core::RakeTask.new(:spec)
+task :default => :spec
+
+begin
+  include_files = ["README*", "LICENSE", "Rakefile", "init.rb", "{lib,test}/**/*"].map do |glob|
+    Dir[glob]
+  end.flatten
+
+  require "jeweler"
+  Jeweler::Tasks.new do |s|
+    s.name              = "paperclip-meta"
+    s.version           = "0.1"
+    s.author            = "Alexey Bondar"
+    s.email             = "y8@ya.ru"
+    s.homepage          = "http://github.com/y8/paperclip-meta"
+    s.description       = "Add width, height and size methods to paperclip thumbnails"
+    s.summary           = "Thumbnail dimensions for paperclip"
+    s.platform          = Gem::Platform::RUBY
+    s.files             = include_files
+    s.require_path      = "lib"
+    s.rubyforge_project = "paperclip-meta"
+    s.has_rdoc          = false
+    s.add_dependency 'paperclip'    
+  end
+
+  Jeweler::GemcutterTasks.new
+rescue LoadError
+  puts "Jeweler (or a dependency) not available. Install it with: sudo gem install jeweler"
 end

lib/paperclip-meta.rb

@@ -1,7 +1,16 @@
 module Paperclip
   class Attachment
-    alias :original_post_process_styles, :post_process_styles
+    alias :original_post_process_styles :post_process_styles
+    alias :original_save :save
 
+    # If attachment deleted - destroy meta data
+    def save
+      unless @queued_for_delete.empty?
+        instance_write(:meta, ActiveSupport::Base64.encode64(Marshal.dump({}))) if instance.respond_to?(:"#{name}_meta=")
+      end
+      original_save
+    end
+
     # If model has #{name}_meta column we getting sizes of processed
     # thumbnails and saving it to #{name}_meta column.
     def post_process_styles
@@ -11,8 +20,12 @@ def post_process_styles
         meta = {}
 
         @queued_for_write.each do |style, file|
-          geo = Geometry.from_file file
-          meta[style] = {:width => geo.width.to_i, :height => geo.height.to_i, :size => File.size(file) }
+          begin
+            geo = Geometry.from_file file
+            meta[style] = {:width => geo.width.to_i, :height => geo.height.to_i, :size => File.size(file) }
+          rescue NotIdentifiedByImageMagickError => e
+            meta[style] = {}
+          end
         end
 
         instance_write(:meta, ActiveSupport::Base64.encode64(Marshal.dump(meta)))
@@ -38,6 +51,6 @@ def meta_read(style, item)
           meta.key?(style) ? meta[style][item] : nil
         end
       end
-    end
+    end    
   end
 end

paperclip-meta.gemspec

@@ -1,19 +1,49 @@
-include_files = ["README*", "LICENSE", "Rakefile", "init.rb", "{lib,test}/**/*"].map do |glob|
-  Dir[glob]
-end.flatten
+# Generated by jeweler
+# DO NOT EDIT THIS FILE DIRECTLY
+# Instead, edit Jeweler::Tasks in Rakefile, and run the gemspec command
+# -*- encoding: utf-8 -*-
+
+Gem::Specification.new do |s|
+  s.name = %q{paperclip-meta}
+  s.version = "0.1"
+
+  s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
+  s.authors = ["Alexey Bondar"]
+  s.date = %q{2010-11-25}
+  s.description = %q{Add width, height and size methods to paperclip thumbnails}
+  s.email = %q{y8@ya.ru}
+  s.extra_rdoc_files = [
+    "README.rdoc"
+  ]
+  s.files = [
+    "README.rdoc",
+     "Rakefile",
+     "init.rb",
+     "lib/paperclip-meta.rb"
+  ]
+  s.homepage = %q{http://github.com/y8/paperclip-meta}
+  s.rdoc_options = ["--charset=UTF-8"]
+  s.require_paths = ["lib"]
+  s.rubyforge_project = %q{paperclip-meta}
+  s.rubygems_version = %q{1.3.7}
+  s.summary = %q{Thumbnail dimensions for paperclip}
+  s.test_files = [
+    "spec/paperclip-meta/paperclip-meta_spec.rb",
+     "spec/schema.rb",
+     "spec/spec_helper.rb"
+  ]
+
+  if s.respond_to? :specification_version then
+    current_version = Gem::Specification::CURRENT_SPECIFICATION_VERSION
+    s.specification_version = 3
+
+    if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then
+      s.add_runtime_dependency(%q<paperclip>, [">= 0"])
+    else
+      s.add_dependency(%q<paperclip>, [">= 0"])
+    end
+  else
+    s.add_dependency(%q<paperclip>, [">= 0"])
+  end
+end
 
-spec = Gem::Specification.new do |s|
-  s.name              = "paperclip-meta"
-  s.version           = "0.1"
-  s.author            = "Alexey Bondar"
-  s.email             = "y8@ya.ru"
-  s.homepage          = "http://github.com/y8/paperclip-meta"
-  s.description       = "Add width, height and size methods to paperclip thumbnails"
-  s.summary           = "Thumbnail dimensions for paperclip"
-  s.platform          = Gem::Platform::RUBY
-  s.files             = include_files
-  s.require_path      = "lib"
-  s.rubyforge_project = "paperclip-meta"
-  s.has_rdoc          = false
-  s.add_dependency 'paperclip'
-end

spec/paperclip-meta/paperclip-meta_spec.rb

@@ -0,0 +1,56 @@
+require 'spec_helper'
+
+describe "Geometry saver plugin" do
+  before(:each) do
+    small_path = File.join(File.dirname(__FILE__), '..', 'fixtures', 'small.png')
+    big_path = File.join(File.dirname(__FILE__), '..', 'fixtures', 'big.jpg')
+    not_path = File.join(File.dirname(__FILE__), '..', 'fixtures', 'big.zip')
+    @big_image = File.open(big_path)
+    @small_image = File.open(small_path)
+    @big_size = Paperclip::Geometry.from_file(big_path)
+    @small_size = Paperclip::Geometry.from_file(small_path)
+    @not_image = File.open(not_path)
+  end
+
+  it "saves image geometry for original image" do
+    img = Image.new
+    img.small_image = @small_image
+    img.save!
+
+    img.reload # Ensure that updates really saved to db
+
+    img.small_image.width eq(@small_size.width)
+    img.small_image.height eq(@small_size.height)
+  end
+
+  it "saves geometry for styles" do
+    img = Image.new
+    img.small_image = @small_image
+    img.big_image = @big_image
+    img.save!
+
+    img.big_image.width(:small).should == 100
+    img.big_image.height(:small).should == 100
+  end
+
+  it "clears geometry fields when image is destroyed" do
+    img = Image.new
+    img.small_image = @small_image
+    img.big_image = @big_image
+    img.save!
+
+    img.big_image.width(:small).should == 100
+
+    img.big_image = nil
+    img.save!
+
+    img.big_image.width(:small).should be_nil
+  end
+
+  it "does not fails when file is not an image" do
+    img = Image.new
+    img.small_image = @not_image
+    lambda { img.save! }.should_not raise_error
+    img.small_image.width(:small).should be_nil
+  end
+end

spec/schema.rb

@@ -0,0 +1,15 @@
+ActiveRecord::Schema.define :version => 0 do
+  create_table "images", :force => true do |t|
+    t.string  :small_image_file_name
+    t.string  :small_image_content_type
+    t.integer :small_image_updated_at
+    t.integer :small_image_file_size
+    t.string  :small_image_meta
+
+    t.string  :big_image_file_name
+    t.string  :big_image_content_type
+    t.integer :big_image_updated_at
+    t.integer :big_image_file_size
+    t.string  :big_image_meta
+  end
+end

spec/spec_helper.rb

@@ -0,0 +1,36 @@
+$LOAD_PATH << "." unless $LOAD_PATH.include?(".")
+
+begin
+  require "bundler"
+  Bundler.setup
+rescue Bundler::GemNotFound
+  raise RuntimeError, "Bundler couldn't find some gems." +
+    "Did you run `bundle install`?"
+end
+
+Bundler.require
+require 'logger'
+Paperclip::Railtie.insert
+
+ActiveRecord::Base.establish_connection(
+  "adapter" => "sqlite3", 
+  "database" => ":memory:"
+)
+
+ActiveRecord::Base.logger = Logger.new(nil)
+
+load(File.dirname(__FILE__) + '/schema.rb')
+$: << File.join(File.dirname(__FILE__), '..', 'lib')
+
+class Image < ActiveRecord::Base
+  has_attached_file :small_image,
+    :storage => :filesystem,
+    :path => "./spec/tmp/:style/:id.:extension",
+    :url => "./spec/tmp/:style/:id.extension"
+
+  has_attached_file :big_image,
+    :storage => :filesystem,
+    :path => "./spec/tmp/fixtures/tmp/:style/:id.:extension",
+    :url => "./spec/tmp/fixtures/tmp/:style/:id.extension",
+    :styles => { :small => "100x100#" }
+end