extconf.rb, version bump to 0.3.0, spec fixes for ruby 1.8.7

.gitignore

@@ -1,2 +1,4 @@
 bin/
+*.gem
 Gemfile.lock
+ext/Makefile

Rakefile

@@ -14,8 +14,5 @@ task YARD::Rake::YardocTask.new
 
 desc "Compile the native client"
 task :build_native do
-  out_dir = ::File.expand_path("../bin", __FILE__)  
-  src_dir = ::File.expand_path("../src", __FILE__)  
-  %x{mkdir -p #{out_dir}}
-  %x{gcc -Wall #{src_dir}/recommendify.c -lhiredis -o #{out_dir}/recommendify}
+  exec "cd ext && ruby extconf.rb && make"
 end

ext/extconf.rb

@@ -0,0 +1,18 @@
+makefile = <<-MAKEFILE
+all: prepare build
+
+build:
+	gcc -Wall recommendify.c -lhiredis -o ../bin/recommendify
+
+prepare:
+	mkdir -p ../bin
+
+clean:
+	rm -f *.o
+
+install: prepare
+MAKEFILE
+
+File.open(::File.expand_path("../Makefile", __FILE__), "w+") do |f|   
+  f.write(makefile)
+end

recommendify.gemspec

@@ -3,22 +3,23 @@ $:.push File.expand_path("../lib", __FILE__)
 
 Gem::Specification.new do |s|
   s.name        = "recommendify"
-  s.version     = "0.2.3"
+  s.version     = "0.3.0"
   s.date        = Date.today.to_s
   s.platform    = Gem::Platform::RUBY
   s.authors     = ["Paul Asmuth"]
   s.email       = ["paul@paulasmuth.com"]
   s.homepage    = "http://github.com/paulasmuth/recommendify"
-  s.summary     = %q{Distributed item-based "Collaborative Filtering" with ruby and redis}
-  s.description = %q{Distributed item-based "Collaborative Filtering" with ruby and redis}
+  s.summary     = %q{ruby/redis based recommendation engine (collaborative filtering)}
+  s.description = %q{Recommendify is a distributed, incremental item-based recommendation engine for binary input ratings. It's based on ruby and redis and uses an approach called "Collaborative Filtering"}
   s.licenses    = ["MIT"]
 
+  s.extensions = ['ext/extconf.rb']
+
   s.add_dependency "redis", ">= 2.2.2"
 
   s.add_development_dependency "rspec", "~> 2.8.0"
 
   s.files         = `git ls-files`.split("\n") - [".gitignore", ".rspec", ".travis.yml"]
   s.test_files    = `git ls-files -- spec/*`.split("\n")
-  s.executables   = `git ls-files -- bin/*`.split("\n").map{ |f| File.basename(f) }
   s.require_paths = ["lib"]
 end

spec/base_spec.rb

@@ -4,8 +4,8 @@
 
   before(:each) do
     flush_redis!
-    Recommendify::Base.class_variable_set(:@@max_neighbors, nil)
-    Recommendify::Base.class_variable_set(:@@input_matrices, {})
+    Recommendify::Base.send(:class_variable_set, :@@max_neighbors, nil)
+    Recommendify::Base.send(:class_variable_set, :@@input_matrices, {})
   end
 
   describe "configuration" do
@@ -24,7 +24,7 @@
 
     it "should add an input_matrix by 'key'" do
       Recommendify::Base.input_matrix(:myinput, :similarity_func => :jaccard)
-      Recommendify::Base.class_variable_get(:@@input_matrices).keys.should == [:myinput]
+      Recommendify::Base.send(:class_variable_get, :@@input_matrices).keys.should == [:myinput]
     end
 
     it "should retrieve an input_matrix on a new instance" do