1 files changed, 111 insertions, 0 deletions
diff --git a/railties/lib/rails/vendor/bundler/lib/bundler/environment.rb b/railties/lib/rails/vendor/bundler/lib/bundler/environment.rb
new file mode 100644
index 0000000000..f07a9e2c6f
--- /dev/null
+++ b/railties/lib/rails/vendor/bundler/lib/bundler/environment.rb
@@ -0,0 +1,111 @@
+require "rubygems/source_index"
+
+module Bundler
+  class DefaultManifestNotFound < StandardError; end
+
+  class Environment
+    attr_reader :filename, :dependencies
+    attr_accessor :rubygems, :system_gems, :gem_path, :bindir
+
+    def self.load(gemfile = nil)
+      gemfile = gemfile ? Pathname.new(gemfile) : default_manifest_file
+
+      unless gemfile.file?
+        raise ManifestFileNotFound, "#{filename.inspect} does not exist"
+      end
+
+      new(gemfile)
+    end
+
+    def self.default_manifest_file
+      current = Pathname.new(Dir.pwd)
+
+      until current.root?
+        filename = current.join("Gemfile")
+        return filename if filename.exist?
+        current = current.parent
+      end
+
+      raise DefaultManifestNotFound
+    end
+
+    def initialize(filename) #, sources, dependencies, bindir, path, rubygems, system_gems)
+      @filename         = filename
+      @default_sources  = [GemSource.new(:uri => "http://gems.rubyforge.org")]
+      @sources          = []
+      @priority_sources = []
+      @dependencies     = []
+      @rubygems         = true
+      @system_gems      = true
+
+      # Evaluate the Gemfile
+      builder = Dsl.new(self)
+      builder.instance_eval(File.read(filename))
+    end
+
+    def install(update = false)
+      begin
+        tmp_path = filename.dirname.join(".tmp")
+        FileUtils.mkdir_p(tmp_path)
+        sources.each { |s| s.tmp_path = tmp_path }
+        repository.install(gem_dependencies, sources,
+          :rubygems    => rubygems,
+          :system_gems => system_gems,
+          :manifest    => filename,
+          :update      => update
+        )
+      ensure
+        FileUtils.rm_rf(tmp_path)
+      end
+      Bundler.logger.info "Done."
+    end
+
+    def setup_environment
+      unless system_gems
+        ENV["GEM_HOME"] = gem_path
+        ENV["GEM_PATH"] = gem_path
+      end
+      ENV["PATH"]     = "#{bindir}:#{ENV["PATH"]}"
+      ENV["RUBYOPT"]  = "-r#{gem_path}/environment #{ENV["RUBYOPT"]}"
+    end
+
+    def root
+      filename.parent
+    end
+
+    def gem_path
+      @gem_path ||= root.join("vendor", "gems")
+    end
+
+    def bindir
+      @bindir ||= root.join("bin")
+    end
+
+    def sources
+      @priority_sources + @sources + @default_sources
+    end
+
+    def add_source(source)
+      @sources << source
+    end
+
+    def add_priority_source(source)
+      @priority_sources << source
+    end
+
+    def clear_sources
+      @sources.clear
+      @default_sources.clear
+    end
+
+  private
+
+    def repository
+      @repository ||= Repository.new(gem_path, bindir)
+    end
+
+    def gem_dependencies
+      @gem_dependencies ||= dependencies.map { |d| d.to_gem_dependency }
+    end
+  end
+end