Rakefile in filegen-0.4.0 vs Rakefile in filegen-0.4.1

@@ -1,60 +1,100 @@
 #!/usr/bin/env rake
 
-require 'bundler'
-Bundler.require :default, :test, :development
+#require 'bundler'
+#Bundler.require :default, :test, :development
 
+require 'filegen'
 require 'fedux_org/stdlib/rake'
-require 'filegen/version'
+require 'active_support/core_ext/string/inflections'
+require 'open3'
 
 def software
-  'filegen'
+  gemspec.name
 end
 
+def gemspec
+  eval File.read(Dir.glob(File.join(File.expand_path('../', __FILE__), '*.gemspec')).first)
+end
+
 def version
-  Filegen::VERSION
+  require "#{software}/version"
+  "#{software.camelcase}::VERSION".constantize
 end
 
 def root_directory
-  File.expand_path('../', __FILE__)
+  ::File.expand_path('../', __FILE__)
 end
 
 def tar_file
-  File.join(pkg_directory, "#{software}-#{version}.tar.gz")
+  ::File.join(pkg_directory, "#{software}-#{version}.tar.gz")
 end
 
 def tmp_directory
-  File.join(root_directory, 'tmp', "#{software}-#{version}")
+  ::File.join(root_directory, 'tmp', "#{software}-#{version}")
 end
 
+def archlinux_build_directory
+  ::File.join(root_directory, 'share', 'archlinux')
+end
+
 def gem_file
-  File.join(root_directory, 'pkg', "#{software}-#{version}.gem")
+  ::File.join(root_directory, 'pkg', "#{software}-#{version}.gem")
 end
 
 def pkg_directory
-  File.join(root_directory, 'pkg')
+  ::File.join(root_directory, 'pkg')
 end
 
 def gem_directory
-  File.join(root_directory, 'vendor', 'cache')
+  ::File.join(root_directory, 'vendor', 'cache')
 end
 
 task :default => 'gem:build'
 
 file gem_file => 'gem:build'
 
 file tmp_directory do
   FileUtils.mkdir_p tmp_directory
 end
 
-namespace :gem do
-  desc 'build tar file'
-  task :package => [gem_file, tmp_directory] do
-    FileUtils.mv File.join(pkg_directory, "#{software}-#{version}.gem"), tmp_directory 
-    FileUtils.mv File.join(gem_directory, "moneta-0.7.20.gem"), tmp_directory 
+file archlinux_build_directory do
+  FileUtils.mkdir_p archlinux_build_directory
+end
 
-    Dir.chdir('tmp') do
-      sh "tar -czf #{tar_file} #{File.basename tmp_directory}"
+def extract_sha
+  %x[makepkg -g 2>/dev/null].split(/\n/).find { |l| l =~ /sha256/ }
+end
+
+namespace :package do
+  desc 'build arch linux package'
+  task :archlinux => [gem_file, archlinux_build_directory] do
+    FileUtils.mv ::File.join(pkg_directory, "#{software}-#{version}.gem"), archlinux_build_directory
+
+    generator = Filegen::Rubygen.new
+    template = File.read(File.expand_path('../share/archlinux/PKGBUILD.sh.erb', __FILE__))
+    build_file = File.expand_path('../share/archlinux/PKGBUILD', __FILE__)
+
+    data = { 
+      sha: nil, 
+      version: version,
+    }
+
+    Dir.chdir(archlinux_build_directory) do
+      File.open(build_file, 'w') do |f|
+        f.write generator.run(template, data )
+      end
+
+      data = {
+        sha: extract_sha,
+        version: version,
+      }
+
+      File.open(build_file, 'w') do |f|
+        f.write generator.run(template, data)
+      end
+
+      sh "makepkg -f"
     end
   end
 end
 
 require 'coveralls/rake/task'