1 files changed, 96 insertions, 0 deletions
diff --git a/tasks/release.rb b/tasks/release.rb
new file mode 100644
index 0000000000..a605fed160
--- /dev/null
+++ b/tasks/release.rb
@@ -0,0 +1,96 @@
+FRAMEWORKS = %w( activesupport activemodel activerecord activeresource actionpack actionmailer railties )
+
+root    = File.expand_path('../../', __FILE__)
+version = File.read("#{root}/RAILS_VERSION").strip
+tag     = "v#{version}"
+
+directory "dist"
+
+(FRAMEWORKS + ['rails']).each do |framework|
+  namespace framework do
+    gem     = "dist/#{framework}-#{version}.gem"
+    gemspec = "#{framework}.gemspec"
+
+    task :clean do
+      rm_f gem
+    end
+
+    task :update_version_rb do
+      glob = root.dup
+      glob << "/#{framework}/lib/*" unless framework == "rails"
+      glob << "/version.rb"
+
+      file = Dir[glob].first
+      ruby = File.read(file)
+
+      major, minor, tiny, pre = version.split('.')
+      pre = pre ? pre.inspect : "nil"
+
+      ruby.gsub! /^(\s*)MAJOR = .*?$/, "\\1MAJOR = #{major}"
+      raise "Could not insert MAJOR in #{file}" unless $1
+
+      ruby.gsub! /^(\s*)MINOR = .*?$/, "\\1MINOR = #{minor}"
+      raise "Could not insert MINOR in #{file}" unless $1
+
+      ruby.gsub! /^(\s*)TINY  = .*?$/, "\\1TINY  = #{tiny}"
+      raise "Could not insert TINY in #{file}" unless $1
+
+      ruby.gsub! /^(\s*)PRE   = .*?$/, "\\1PRE   = #{pre}"
+      raise "Could not insert PRE in #{file}" unless $1
+
+      File.open(file, 'w') { |f| f.write ruby }
+    end
+
+    task gem => %w(update_version_rb dist) do
+      cmd = ""
+      cmd << "cd #{framework} && " unless framework == "rails"
+      cmd << "gem build #{gemspec} && mv #{framework}-#{version}.gem #{root}/dist/"
+      sh cmd
+    end
+
+    task :build => [:clean, gem]
+    task :install => :build do
+      sh "gem install #{gem}"
+    end
+
+    task :prep_release => [:ensure_clean_state, :build]
+
+    task :push => :build do
+      sh "gem push #{gem}"
+    end
+  end
+end
+
+namespace :all do
+  task :build   => FRAMEWORKS.map { |f| "#{f}:build"   } + ['rails:build']
+  task :install => FRAMEWORKS.map { |f| "#{f}:install" } + ['rails:install']
+  task :push    => FRAMEWORKS.map { |f| "#{f}:push"    } + ['rails:push']
+
+  task :ensure_clean_state do
+    unless `git status -s | grep -v RAILS_VERSION`.strip.empty?
+      abort "[ABORTING] `git status` reports a dirty tree. Make sure all changes are committed"
+    end
+
+    unless ENV['SKIP_TAG'] || `git tag | grep #{tag}`.strip.empty?
+      abort "[ABORTING] `git tag` shows that #{tag} already exists. Has this version already\n"\
+            "           been released? Git tagging can be skipped by setting SKIP_TAG=1"
+    end
+  end
+
+  task :commit do
+    File.open('dist/commit_message.txt', 'w') do |f|
+      f.puts "# Preparing for #{version} release\n"
+      f.puts
+      f.puts "# UNCOMMENT THE LINE ABOVE TO APPROVE THIS COMMIT"
+    end
+
+    sh "git add . && git commit --verbose --template=dist/commit_message.txt"
+    rm_f "dist/commit_message.txt"
+  end
+
+  task :tag do
+    sh "git tag #{tag}"
+  end
+
+  task :release => %w(ensure_clean_state build commit tag push)
+end