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Vendor the bundler project

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commit e7a2496fda92ff4e39c127b065bf51ed6301e772 1 parent d80316a
Yehuda Katz + Carl Lerche authored
Showing with 940 additions and 0 deletions.
  1. +20 −0 railties/lib/vendor/bundler/LICENSE
  2. +52 −0 railties/lib/vendor/bundler/Rakefile
  3. +40 −0 railties/lib/vendor/bundler/bin/gem_bundler
  4. +24 −0 railties/lib/vendor/bundler/lib/bundler.rb
  5. +24 −0 railties/lib/vendor/bundler/lib/bundler/cli.rb
  6. +35 −0 railties/lib/vendor/bundler/lib/bundler/dependency.rb
  7. +42 −0 railties/lib/vendor/bundler/lib/bundler/finder.rb
  8. +23 −0 railties/lib/vendor/bundler/lib/bundler/gem_bundle.rb
  9. +10 −0 railties/lib/vendor/bundler/lib/bundler/gem_specification.rb
  10. +44 −0 railties/lib/vendor/bundler/lib/bundler/installer.rb
  11. +130 −0 railties/lib/vendor/bundler/lib/bundler/manifest.rb
  12. +19 −0 railties/lib/vendor/bundler/lib/bundler/resolver.rb
  13. +61 −0 railties/lib/vendor/bundler/lib/bundler/resolver/builders.rb
  14. +38 −0 railties/lib/vendor/bundler/lib/bundler/resolver/engine.rb
  15. +24 −0 railties/lib/vendor/bundler/lib/bundler/resolver/inspect.rb
  16. +71 −0 railties/lib/vendor/bundler/lib/bundler/resolver/search.rb
  17. +72 −0 railties/lib/vendor/bundler/lib/bundler/resolver/stack.rb
  18. +172 −0 railties/lib/vendor/bundler/lib/bundler/resolver/state.rb
  19. +39 −0 railties/lib/vendor/bundler/lib/bundler/runtime.rb
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20 railties/lib/vendor/bundler/LICENSE
@@ -0,0 +1,20 @@
+Copyright (c) 2009 Engine Yard
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
View
52 railties/lib/vendor/bundler/Rakefile
@@ -0,0 +1,52 @@
+require 'rubygems' unless ENV['NO_RUBYGEMS']
+require 'rake/gempackagetask'
+require 'rubygems/specification'
+require 'date'
+require 'spec/rake/spectask'
+
+spec = Gem::Specification.new do |s|
+ s.name = "bundler"
+ s.version = "0.0.1"
+ s.author = "Your Name"
+ s.email = "Your Email"
+ s.homepage = "http://example.com"
+ s.description = s.summary = "A gem that provides..."
+
+ s.platform = Gem::Platform::RUBY
+ s.has_rdoc = true
+ s.extra_rdoc_files = ["README", "LICENSE"]
+ s.summary = ""
+
+ # Uncomment this to add a dependency
+ # s.add_dependency "foo"
+
+ s.bindir = "bin"
+ s.executables = %w( gem_bundler )
+ s.require_path = 'lib'
+ s.files = %w(LICENSE README Rakefile) + Dir.glob("{bin,lib,spec}/**/*")
+end
+
+task :default => :spec
+
+desc "Run specs"
+Spec::Rake::SpecTask.new do |t|
+ t.spec_files = FileList['spec/**/*_spec.rb']
+ t.spec_opts = %w(-fs --color)
+end
+
+
+Rake::GemPackageTask.new(spec) do |pkg|
+ pkg.gem_spec = spec
+end
+
+desc "install the gem locally"
+task :install => [:package] do
+ sh %{sudo gem install pkg/#{GEM}-#{GEM_VERSION}}
+end
+
+desc "create a gemspec file"
+task :make_spec do
+ File.open("#{GEM}.gemspec", "w") do |file|
+ file.puts spec.to_ruby
+ end
+end
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40 railties/lib/vendor/bundler/bin/gem_bundler
@@ -0,0 +1,40 @@
+#!/usr/bin/env ruby
+require "optparse"
+require "bundler"
+
+options = {}
+
+parser = OptionParser.new do |op|
+ op.banner = "Usage: gem_bundler [OPTIONS] [PATH]"
+
+ op.on("-m", "--manifest MANIFEST") do |manifest|
+ options[:manifest] = manifest
+ end
+
+ op.on_tail("-h", "--help", "Show this message") do
+ puts op
+ exit
+ end
+end
+parser.parse!
+
+options[:path] = ARGV.shift
+
+unless options[:path]
+ puts parser
+ puts %(
+ [PATH] must be specified
+ )
+ exit
+end
+
+unless options[:manifest] && File.exist?(options[:manifest])
+ puts parser
+ puts %(
+ MANIFEST must be a valid manifest file
+ )
+ exit
+end
+
+
+Bundler.run(options)
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24 railties/lib/vendor/bundler/lib/bundler.rb
@@ -0,0 +1,24 @@
+require 'logger'
+require 'set'
+# Required elements of rubygems
+require "rubygems/remote_fetcher"
+require "rubygems/installer"
+
+require "bundler/gem_bundle"
+require "bundler/installer"
+require "bundler/finder"
+require "bundler/gem_specification"
+require "bundler/resolver"
+require "bundler/manifest"
+require "bundler/dependency"
+require "bundler/runtime"
+require "bundler/cli"
+
+module Bundler
+ VERSION = "0.5.0"
+
+ def self.run(options = {})
+ manifest = ManifestBuilder.load(options[:path], options[:manifest])
+ manifest.install
+ end
+end
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24 railties/lib/vendor/bundler/lib/bundler/cli.rb
@@ -0,0 +1,24 @@
+module Bundler
+ module CLI
+
+ def default_manifest
+ current = Pathname.new(Dir.pwd)
+
+ begin
+ manifest = current.join("Gemfile")
+ return manifest.to_s if File.exist?(manifest)
+ current = current.parent
+ end until current.root?
+ nil
+ end
+
+ module_function :default_manifest
+
+ def default_path
+ Pathname.new(File.dirname(default_manifest)).join("vendor").join("gems").to_s
+ end
+
+ module_function :default_path
+
+ end
+end
View
35 railties/lib/vendor/bundler/lib/bundler/dependency.rb
@@ -0,0 +1,35 @@
+module Bundler
+ class Dependency
+
+ attr_reader :name, :version, :require_as, :only, :except
+
+ def initialize(name, options = {})
+ options.each do |k, v|
+ options[k.to_s] = v
+ end
+
+ @name = name
+ @version = options["version"] || ">= 0"
+ @require_as = Array(options["require_as"] || name)
+ @only = Array(options["only"]).map {|e| e.to_s } if options["only"]
+ @except = Array(options["except"]).map {|e| e.to_s } if options["except"]
+ end
+
+ def in?(environment)
+ environment = environment.to_s
+
+ return false unless !@only || @only.include?(environment)
+ return false if @except && @except.include?(environment)
+ true
+ end
+
+ def to_s
+ to_gem_dependency.to_s
+ end
+
+ def to_gem_dependency
+ @gem_dep ||= Gem::Dependency.new(name, version)
+ end
+
+ end
+end
View
42 railties/lib/vendor/bundler/lib/bundler/finder.rb
@@ -0,0 +1,42 @@
+module Bundler
+ class Finder
+ def initialize(*sources)
+ @results = {}
+ @index = Hash.new { |h,k| h[k] = {} }
+
+ sources.each { |source| fetch(source) }
+ end
+
+ def resolve(*dependencies)
+ resolved = Resolver.resolve(dependencies, self)
+ resolved && GemBundle.new(resolved.all_specs)
+ end
+
+ def fetch(source)
+ deflated = Gem::RemoteFetcher.fetcher.fetch_path("#{source}/Marshal.4.8.Z")
+ inflated = Gem.inflate deflated
+
+ append(Marshal.load(inflated), source)
+ rescue Gem::RemoteFetcher::FetchError => e
+ raise ArgumentError, "#{source} is not a valid source: #{e.message}"
+ end
+
+ def append(index, source)
+ index.gems.values.each do |spec|
+ next unless Gem::Platform.match(spec.platform)
+ spec.source = source
+ @index[spec.name][spec.version] ||= spec
+ end
+ self
+ end
+
+ def search(dependency)
+ @results[dependency.hash] ||= begin
+ possibilities = @index[dependency.name].values
+ possibilities.select do |spec|
+ dependency =~ spec
+ end.sort_by {|s| s.version }
+ end
+ end
+ end
+end
View
23 railties/lib/vendor/bundler/lib/bundler/gem_bundle.rb
@@ -0,0 +1,23 @@
+module Bundler
+ class GemBundle < Array
+ def download(directory)
+ FileUtils.mkdir_p(directory)
+
+ current = Dir[File.join(directory, "cache", "*.gem*")]
+
+ each do |spec|
+ cached = File.join(directory, "cache", "#{spec.full_name}.gem")
+
+ unless File.file?(cached)
+ Gem::RemoteFetcher.fetcher.download(spec, spec.source, directory)
+ end
+
+ current.delete(cached)
+ end
+
+ current.each { |file| File.delete(file) }
+
+ self
+ end
+ end
+end
View
10 railties/lib/vendor/bundler/lib/bundler/gem_specification.rb
@@ -0,0 +1,10 @@
+module Gem
+ class Specification
+ attribute :source
+
+ def source=(source)
+ @source = source.is_a?(URI) ? source : URI.parse(source)
+ raise ArgumentError, "The source must be an absolute URI" unless @source.absolute?
+ end
+ end
+end
View
44 railties/lib/vendor/bundler/lib/bundler/installer.rb
@@ -0,0 +1,44 @@
+module Bundler
+ class Installer
+ def initialize(path)
+ if !File.directory?(path)
+ raise ArgumentError, "#{path} is not a directory"
+ elsif !File.directory?(File.join(path, "cache"))
+ raise ArgumentError, "#{path} is not a valid environment (it does not contain a cache directory)"
+ end
+
+ @path = path
+ @gems = Dir[(File.join(path, "cache", "*.gem"))]
+ end
+
+ def install(options = {})
+ bin_dir = options[:bin_dir] ||= File.join(@path, "bin")
+
+ specs = Dir[File.join(@path, "specifications", "*.gemspec")]
+ gems = Dir[File.join(@path, "gems", "*")]
+
+ @gems.each do |gem|
+ name = File.basename(gem).gsub(/\.gem$/, '')
+ installed = specs.any? { |g| File.basename(g) == "#{name}.gemspec" } &&
+ gems.any? { |g| File.basename(g) == name }
+
+ unless installed
+ installer = Gem::Installer.new(gem, :install_dir => @path,
+ :ignore_dependencies => true,
+ :env_shebang => true,
+ :wrappers => true,
+ :bin_dir => bin_dir)
+ installer.install
+ end
+
+ # remove this spec
+ specs.delete_if { |g| File.basename(g) == "#{name}.gemspec"}
+ gems.delete_if { |g| File.basename(g) == name }
+ end
+
+ (specs + gems).each do |path|
+ FileUtils.rm_rf(path)
+ end
+ end
+ end
+end
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130 railties/lib/vendor/bundler/lib/bundler/manifest.rb
@@ -0,0 +1,130 @@
+require "rubygems/source_index"
+require "pathname"
+
+module Bundler
+ class VersionConflict < StandardError; end
+
+ class Manifest
+ attr_reader :sources, :dependencies, :path
+
+ def initialize(sources, dependencies, path)
+ sources.map! {|s| s.is_a?(URI) ? s : URI.parse(s) }
+ @sources, @dependencies, @path = sources, dependencies, Pathname.new(path)
+ end
+
+ def fetch
+ return if all_gems_installed?
+
+ finder = Finder.new(*sources)
+ unless bundle = finder.resolve(*gem_dependencies)
+ gems = @dependencies.map {|d| " #{d.to_s}" }.join("\n")
+ raise VersionConflict, "No compatible versions could be found for:\n#{gems}"
+ end
+
+ bundle.download(@path)
+ end
+
+ def install(options = {})
+ fetch
+ installer = Installer.new(@path)
+ installer.install # options come here
+ create_load_paths_files(File.join(@path, "environments"))
+ create_fake_rubygems(File.join(@path, "environments"))
+ end
+
+ def activate(environment = "default")
+ require File.join(@path, "environments", "#{environment}.rb")
+ end
+
+ def require_all
+ dependencies.each do |dep|
+ dep.require_as.each {|file| require file }
+ end
+ end
+
+ def gems_for(environment)
+ deps = dependencies.select { |d| d.in?(environment) }
+ deps.map! { |d| d.to_gem_dependency }
+ index = Gem::SourceIndex.from_gems_in(File.join(@path, "specifications"))
+ Resolver.resolve(deps, index).all_specs
+ end
+
+ def environments
+ envs = dependencies.map {|dep| Array(dep.only) + Array(dep.except) }.flatten
+ envs << "default"
+ end
+
+ private
+
+ def gem_dependencies
+ @gem_dependencies ||= dependencies.map { |d| d.to_gem_dependency }
+ end
+
+ def all_gems_installed?
+ gem_versions = {}
+
+ Dir[File.join(@path, "cache", "*.gem")].each do |file|
+ file =~ /\/([^\/]+)-([\d\.]+)\.gem$/
+ name, version = $1, $2
+ gem_versions[name] = Gem::Version.new(version)
+ end
+
+ gem_dependencies.all? do |dep|
+ gem_versions[dep.name] &&
+ dep.version_requirements.satisfied_by?(gem_versions[dep.name])
+ end
+ end
+
+ def create_load_paths_files(path)
+ FileUtils.mkdir_p(path)
+ environments.each do |environment|
+ gem_specs = gems_for(environment)
+ File.open(File.join(path, "#{environment}.rb"), "w") do |file|
+ file.puts <<-RUBY_EVAL
+ module Bundler
+ def self.rubygems_required
+ #{create_gem_stubs(path, gem_specs)}
+ end
+ end
+ RUBY_EVAL
+ file.puts "$LOAD_PATH.unshift File.expand_path(File.dirname(__FILE__))"
+ load_paths_for_specs(gem_specs).each do |load_path|
+ file.puts "$LOAD_PATH.unshift #{load_path.inspect}"
+ end
+ end
+ end
+ end
+
+ def create_gem_stubs(path, gem_specs)
+ gem_specs.map do |spec|
+ path = File.expand_path(File.join(path, '..', 'specifications', "#{spec.full_name}.gemspec"))
+ %{
+ Gem.loaded_specs["#{spec.name}"] = eval(File.read("#{path}"))
+ }
+ end.join("\n")
+ end
+
+ def create_fake_rubygems(path)
+ File.open(File.join(path, "rubygems.rb"), "w") do |file|
+ file.puts <<-RUBY_EVAL
+ $:.delete File.expand_path(File.dirname(__FILE__))
+ load "rubygems.rb"
+ if defined?(Bundler) && Bundler.respond_to?(:rubygems_required)
+ Bundler.rubygems_required
+ end
+ RUBY_EVAL
+ end
+ end
+
+ def load_paths_for_specs(specs)
+ load_paths = []
+ specs.each do |spec|
+ load_paths << File.join(spec.full_gem_path, spec.bindir) if spec.bindir
+ spec.require_paths.each do |path|
+ load_paths << File.join(spec.full_gem_path, path)
+ end
+ end
+ load_paths
+ end
+ end
+end
View
19 railties/lib/vendor/bundler/lib/bundler/resolver.rb
@@ -0,0 +1,19 @@
+require 'bundler/resolver/inspect'
+require 'bundler/resolver/search'
+require 'bundler/resolver/engine'
+require 'bundler/resolver/stack'
+require 'bundler/resolver/state'
+
+module Bundler
+ module Resolver
+ def self.resolve(deps, source_index = Gem.source_index, logger = nil)
+ unless logger
+ logger = Logger.new($stderr)
+ logger.datetime_format = ""
+ logger.level = ENV["GEM_RESOLVER_DEBUG"] ? Logger::DEBUG : Logger::ERROR
+ end
+
+ Engine.resolve(deps, source_index, logger)
+ end
+ end
+end
View
61 railties/lib/vendor/bundler/lib/bundler/resolver/builders.rb
@@ -0,0 +1,61 @@
+module Bundler
+ module Resolver
+ module Builders
+ def build_index(&block)
+ index = Gem::SourceIndex.new
+ IndexBuilder.run(index, &block) if block_given?
+ index
+ end
+
+ def build_spec(name, version, &block)
+ spec = Gem::Specification.new
+ spec.instance_variable_set(:@name, name)
+ spec.instance_variable_set(:@version, Gem::Version.new(version))
+ DepBuilder.run(spec, &block) if block_given?
+ spec
+ end
+
+ def build_dep(name, requirements, type = :runtime)
+ Gem::Dependency.new(name, requirements, type)
+ end
+
+ class IndexBuilder
+ include Builders
+
+ def self.run(index, &block)
+ new(index).run(&block)
+ end
+
+ def initialize(index)
+ @index = index
+ end
+
+ def run(&block)
+ instance_eval(&block)
+ end
+
+ def add_spec(*args, &block)
+ @index.add_spec(build_spec(*args, &block))
+ end
+ end
+
+ class DepBuilder
+ def self.run(spec, &block)
+ new(spec).run(&block)
+ end
+
+ def initialize(spec)
+ @spec = spec
+ end
+
+ def run(&block)
+ instance_eval(&block)
+ end
+
+ def runtime(name, requirements)
+ @spec.add_runtime_dependency(name, requirements)
+ end
+ end
+ end
+ end
+end
View
38 railties/lib/vendor/bundler/lib/bundler/resolver/engine.rb
@@ -0,0 +1,38 @@
+module Bundler
+ module Resolver
+ class ClosedSet < Set
+ end
+
+ class Engine
+ include Search, Inspect
+
+ def self.resolve(deps, source_index, logger)
+ new(deps, source_index, logger).resolve
+ end
+
+ def initialize(deps, source_index, logger)
+ @deps, @source_index, @logger = deps, source_index, logger
+ logger.debug "searching for #{gem_resolver_inspect(@deps)}"
+ end
+ attr_reader :deps, :source_index, :logger, :solution
+
+ def resolve
+ state = State.initial(self, [], Stack.new, Stack.new([[[], @deps.dup]]))
+ if solution = search(state)
+ logger.info "got the solution with #{solution.all_specs.size} specs"
+ solution.dump(Logger::INFO)
+ solution
+ end
+ end
+
+ def open
+ @open ||= []
+ end
+
+ def closed
+ @closed ||= ClosedSet.new
+ end
+ end
+ end
+
+end
View
24 railties/lib/vendor/bundler/lib/bundler/resolver/inspect.rb
@@ -0,0 +1,24 @@
+module Bundler
+ module Resolver
+ module Inspect
+ def gem_resolver_inspect(o)
+ case o
+ when Gem::Specification
+ "#<Spec: #{o.full_name}>"
+ when Array
+ '[' + o.map {|x| gem_resolver_inspect(x)}.join(", ") + ']'
+ when Set
+ gem_resolver_inspect(o.to_a)
+ when Hash
+ '{' + o.map {|k,v| "#{gem_resolver_inspect(k)} => #{gem_resolver_inspect(v)}"}.join(", ") + '}'
+ when Stack
+ o.gem_resolver_inspect
+ else
+ o.inspect
+ end
+ end
+
+ module_function :gem_resolver_inspect
+ end
+ end
+end
View
71 railties/lib/vendor/bundler/lib/bundler/resolver/search.rb
@@ -0,0 +1,71 @@
+module Bundler
+ module Resolver
+ module Search
+ def search(initial, max_depth = (1.0 / 0.0))
+ if initial.goal_met?
+ return initial
+ end
+
+ open << initial
+
+ while open.any?
+ current = open.pop
+ closed << current
+
+ new = []
+ current.each_possibility do |attempt|
+ unless closed.include?(attempt)
+ if attempt.goal_met?
+ return attempt
+ elsif attempt.depth < max_depth
+ new << attempt
+ end
+ end
+ end
+ new.reverse.each do |state|
+ open << state
+ end
+ end
+
+ nil
+ end
+
+ def open
+ raise "implement #open in #{self.class}"
+ end
+
+ def closed
+ raise "implement #closed in #{self.class}"
+ end
+
+ module Node
+ def self.included(base)
+ base.extend(ClassMethods)
+ end
+
+ module ClassMethods
+ def initial(*data)
+ new(0, *data)
+ end
+ end
+
+ def initialize(depth)
+ @depth = depth
+ end
+ attr_reader :depth
+
+ def child(*data)
+ self.class.new(@depth + 1, *data)
+ end
+
+ def each_possibility
+ raise "implement #each_possibility on #{self.class}"
+ end
+
+ def goal_met?
+ raise "implement #goal_met? on #{self.class}"
+ end
+ end
+ end
+ end
+end
View
72 railties/lib/vendor/bundler/lib/bundler/resolver/stack.rb
@@ -0,0 +1,72 @@
+module Bundler
+ module Resolver
+ class Stack
+ def initialize(initial = [])
+ @data = []
+ initial.each do |(path,value)|
+ self[path] = value
+ end
+ end
+
+ def last
+ @data.last
+ end
+
+ def []=(path, value)
+ raise ArgumentError, "#{path.inspect} already has a value" if key?(path)
+ @data << [path.dup, value]
+ end
+
+ def [](path)
+ if key?(path)
+ _, value = @data.find do |(k,v)|
+ k == path
+ end
+ value
+ else
+ raise "No value for #{path.inspect}"
+ end
+ end
+
+ def key?(path)
+ @data.any? do |(k,v)|
+ k == path
+ end
+ end
+
+ def each
+ @data.each do |(k,v)|
+ yield k, v
+ end
+ end
+
+ def map
+ @data.map do |(k,v)|
+ yield k, v
+ end
+ end
+
+ def each_value
+ @data.each do |(k,v)|
+ yield v
+ end
+ end
+
+ def dup
+ self.class.new(@data.dup)
+ end
+
+ def to_s
+ @data.to_s
+ end
+
+ def inspect
+ @data.inspect
+ end
+
+ def gem_resolver_inspect
+ Inspect.gem_resolver_inspect(@data)
+ end
+ end
+ end
+end
View
172 railties/lib/vendor/bundler/lib/bundler/resolver/state.rb
@@ -0,0 +1,172 @@
+module Bundler
+ module Resolver
+ class State
+ include Search::Node, Inspect
+
+ def initialize(depth, engine, path, spec_stack, dep_stack)
+ super(depth)
+ @engine, @path, @spec_stack, @dep_stack = engine, path, spec_stack, dep_stack
+ end
+ attr_reader :path
+
+ def logger
+ @engine.logger
+ end
+
+ def goal_met?
+ logger.info "checking if goal is met"
+ dump
+ no_duplicates?
+ all_deps.all? do |dep|
+ dependency_satisfied?(dep)
+ end
+ end
+
+ def no_duplicates?
+ names = []
+ all_specs.each do |s|
+ if names.include?(s.name)
+ raise "somehow got duplicates for #{s.name}"
+ end
+ names << s.name
+ end
+ end
+
+ def dependency_satisfied?(dep)
+ all_specs.any? do |spec|
+ spec.satisfies_requirement?(dep)
+ end
+ end
+
+ def each_possibility(&block)
+ index, dep = remaining_deps.first
+ if dep
+ logger.warn "working on #{dep} for #{spec_name}"
+ handle_dep(index, dep, &block)
+ else
+ logger.warn "no dependencies left for #{spec_name}"
+ jump_to_parent(&block)
+ end
+ end
+
+ def handle_dep(index, dep)
+ specs = @engine.source_index.search(dep)
+
+ specs.reverse.each do |s|
+ logger.info "attempting with spec: #{s.full_name}"
+ new_path = @path + [index]
+ new_spec_stack = @spec_stack.dup
+ new_dep_stack = @dep_stack.dup
+
+ new_spec_stack[new_path] = s
+ new_dep_stack[new_path] = s.runtime_dependencies.sort_by do |dep|
+ @engine.source_index.search(dep).size
+ end
+ yield child(@engine, new_path, new_spec_stack, new_dep_stack)
+ end
+ end
+
+ def jump_to_parent
+ if @path.empty?
+ dump
+ logger.warn "at the end"
+ return
+ end
+
+ logger.info "jumping to parent for #{spec_name}"
+ new_path = @path[0..-2]
+ new_spec_stack = @spec_stack.dup
+ new_dep_stack = @dep_stack.dup
+
+ yield child(@engine, new_path, new_spec_stack, new_dep_stack)
+ end
+
+ def remaining_deps
+ remaining_deps_for(@path)
+ end
+
+ def remaining_deps_for(path)
+ no_duplicates?
+ remaining = []
+ @dep_stack[path].each_with_index do |dep,i|
+ remaining << [i, dep] unless all_specs.find {|s| s.name == dep.name}
+ end
+ remaining
+ end
+
+ def deps
+ @dep_stack[@path]
+ end
+
+ def spec
+ @spec_stack[@path]
+ end
+
+ def spec_name
+ @path.empty? ? "<top>" : spec.full_name
+ end
+
+ def all_deps
+ all_deps = Set.new
+ @dep_stack.each_value do |deps|
+ all_deps.merge(deps)
+ end
+ all_deps.to_a
+ end
+
+ def all_specs
+ @spec_stack.map do |path,spec|
+ spec
+ end
+ end
+
+ def dump(level = Logger::DEBUG)
+ logger.add level, "v" * 80
+ logger.add level, "path: #{@path.inspect}"
+ logger.add level, "deps: (#{deps.size})"
+ deps.map do |dep|
+ logger.add level, gem_resolver_inspect(dep)
+ end
+ logger.add level, "remaining_deps: (#{remaining_deps.size})"
+ remaining_deps.each do |dep|
+ logger.add level, gem_resolver_inspect(dep)
+ end
+ logger.add level, "dep_stack: "
+ @dep_stack.each do |path,deps|
+ logger.add level, "#{path.inspect} (#{deps.size})"
+ deps.each do |dep|
+ logger.add level, "-> #{gem_resolver_inspect(dep)}"
+ end
+ end
+ logger.add level, "spec_stack: "
+ @spec_stack.each do |path,spec|
+ logger.add level, "#{path.inspect}: #{gem_resolver_inspect(spec)}"
+ end
+ logger.add level, "^" * 80
+ end
+
+ def to_dot
+ io = StringIO.new
+ io.puts 'digraph deps {'
+ io.puts ' fontname = "Courier";'
+ io.puts ' mincross = 4.0;'
+ io.puts ' ratio = "auto";'
+ dump_to_dot(io, "<top>", [])
+ io.puts '}'
+ io.string
+ end
+
+ def dump_to_dot(io, name, path)
+ @dep_stack[path].each_with_index do |dep,i|
+ new_path = path + [i]
+ spec_name = all_specs.find {|x| x.name == dep.name}.full_name
+ io.puts ' "%s" -> "%s";' % [name, dep.to_s]
+ io.puts ' "%s" -> "%s";' % [dep.to_s, spec_name]
+ if @spec_stack.key?(new_path)
+ dump_to_dot(io, spec_name, new_path)
+ end
+ end
+ end
+ end
+ end
+end
View
39 railties/lib/vendor/bundler/lib/bundler/runtime.rb
@@ -0,0 +1,39 @@
+module Bundler
+ class ManifestBuilder
+
+ attr_reader :sources
+
+ def self.build(path, string)
+ builder = new(path)
+ builder.instance_eval(string)
+ builder.to_manifest
+ end
+
+ def self.load(path, file)
+ string = File.read(file)
+ build(path, string)
+ end
+
+ def initialize(path)
+ @path = path
+ @sources = %w(http://gems.rubyforge.org)
+ @dependencies = []
+ end
+
+ def to_manifest
+ Manifest.new(@sources, @dependencies, @path)
+ end
+
+ def source(source)
+ @sources << source
+ end
+
+ def gem(name, *args)
+ options = args.last.is_a?(Hash) ? args.pop : {}
+ version = args.last
+
+ @dependencies << Dependency.new(name, options.merge(:version => version))
+ end
+
+ end
+end
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