Dropping Jeweler in favor of some simple Thor tasks (for Gemcutter)

Rakefile

@@ -1,36 +1,5 @@
 require "rubygems"
 
-begin
-  require 'jeweler'
-rescue LoadError
-  desc "Install gem using sudo"
-  task(:install) do
-    $stderr.puts "Jeweler not available. `gem install jeweler` to install this gem"
-  end
-else
-  Jeweler::Tasks.new do |s|
-    s.name      = "arel"
-    s.authors   = ["Bryan Helmkamp", "Nick Kallen"]
-    s.email     = "bryan" + "@" + "brynary.com"
-    s.homepage  = "http://github.com/brynary/arel"
-    s.summary   = "Arel is a relational algebra engine for Ruby"
-    s.description  = <<-EOS.strip
-Arel is a Relational Algebra for Ruby. It 1) simplifies the generation complex
-of SQL queries and it 2) adapts to various RDBMS systems. It is intended to be
-a framework framework; that is, you can build your own ORM with it, focusing on
-innovative object and collection modeling as opposed to database compatibility
-and query generation.
-EOS
-    s.rubyforge_project = "arel"
-    s.extra_rdoc_files = %w(README.markdown)
-
-    s.add_dependency "activerecord", ">= 3.0pre"
-    s.add_dependency "activesupport", ">= 3.0pre"
-  end
-
-  Jeweler::RubyforgeTasks.new
-end
-
 begin
   require "spec/rake/spectask"
 rescue LoadError

Thorfile

@@ -0,0 +1,116 @@
+module GemHelpers
+
+  def generate_gemspec
+    $LOAD_PATH.unshift(File.expand_path(File.join(File.dirname(__FILE__), "lib")))
+    require "arel"
+
+    Gem::Specification.new do |s|
+      s.name      = "arel"
+      s.version   = Arel::VERSION
+      s.authors   = ["Bryan Helmkamp", "Nick Kallen"]
+      s.email     = "bryan@brynary.com"
+      s.homepage  = "http://github.com/brynary/arel"
+      s.summary   = "Arel is a relational algebra engine for Ruby"
+      s.description  = <<-EOS.strip
+Arel is a Relational Algebra for Ruby. It 1) simplifies the generation complex
+of SQL queries and it 2) adapts to various RDBMS systems. It is intended to be
+a framework framework; that is, you can build your own ORM with it, focusing on
+innovative object and collection modeling as opposed to database compatibility
+and query generation.
+      EOS
+      s.rubyforge_project = "arel"
+
+      require "git"
+      repo = Git.open(".")
+
+      s.files      = normalize_files(repo.ls_files.keys - repo.lib.ignored_files)
+      s.test_files = normalize_files(Dir['spec/**/*.rb'] - repo.lib.ignored_files)
+
+      s.has_rdoc = true
+      s.extra_rdoc_files = %w[README.markdown]
+
+      s.add_dependency "activerecord", ">= 3.0pre"
+      s.add_dependency "activesupport", ">= 3.0pre"
+    end
+  end
+
+  def normalize_files(array)
+    # only keep files, no directories, and sort
+    array.select do |path|
+      File.file?(path)
+    end.sort
+  end
+
+  # Adds extra space when outputting an array. This helps create better version
+  # control diffs, because otherwise it is all on the same line.
+  def prettyify_array(gemspec_ruby, array_name)
+    gemspec_ruby.gsub(/s\.#{array_name.to_s} = \[.+?\]/) do |match|
+      leadin, files = match[0..-2].split("[")
+      leadin + "[\n    #{files.split(",").join(",\n   ")}\n  ]"
+    end
+  end
+
+  def read_gemspec
+    @read_gemspec ||= eval(File.read("arel.gemspec"))
+  end
+
+  def sh(command)
+    puts command
+    system command
+  end
+end
+
+class Default < Thor
+  include GemHelpers
+
+  desc "gemspec", "Regenerate arel.gemspec"
+  def gemspec
+    File.open("arel.gemspec", "w") do |file|
+      gemspec_ruby = generate_gemspec.to_ruby
+      gemspec_ruby = prettyify_array(gemspec_ruby, :files)
+      gemspec_ruby = prettyify_array(gemspec_ruby, :test_files)
+      gemspec_ruby = prettyify_array(gemspec_ruby, :extra_rdoc_files)
+
+      file.write gemspec_ruby
+    end
+
+    puts "Wrote gemspec to arel.gemspec"
+    read_gemspec.validate
+  end
+
+  desc "build", "Build a arel gem"
+  def build
+    sh "gem build arel.gemspec"
+    FileUtils.mkdir_p "pkg"
+    FileUtils.mv read_gemspec.file_name, "pkg"
+  end
+
+  desc "install", "Install the latest built gem"
+  def install
+    sh "gem install --local pkg/#{read_gemspec.file_name}"
+  end
+
+  desc "release", "Release the current branch to GitHub and Gemcutter"
+  def release
+    gemspec
+    build
+    Release.new.tag
+    Release.new.gem
+  end
+end
+
+class Release < Thor
+  include GemHelpers
+
+  desc "tag", "Tag the gem on the origin server"
+  def tag
+    release_tag = "v#{read_gemspec.version}"
+    sh "git tag -a #{release_tag} -m 'Tagging #{release_tag}'"
+    sh "git push origin #{release_tag}"
+  end
+
+  desc "gem", "Push the gem to Gemcutter"
+  def gem
+    sh "gem push pkg/#{read_gemspec.file_name}"
+  end
+end

lib/arel.rb

@@ -9,4 +9,6 @@ module Arel
   require 'arel/algebra'
   require 'arel/engines'
   autoload :Session, 'arel/session'
+
+  VERSION = "0.1.2"
 end