Class: Bundler::Definition

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# File 'lib/bundler/definition.rb', line 282

def ensure_equivalent_gemfile_and_lockfile(explicit_flag = false)
  changes = false

  msg = "You are trying to install in deployment mode after changing\n" \
        "your Gemfile. Run `bundle install` elsewhere and add the\n" \
        "updated Gemfile.lock to version control."

  unless explicit_flag
    msg += "\n\nIf this is a development machine, remove the Gemfile " \
           "freeze \nby running `bundle install --no-deployment`."
  end

  added =   []
  deleted = []
  changed = []

  if @locked_sources != @sources
    new_sources = @sources - @locked_sources
    deleted_sources = @locked_sources - @sources

    if new_sources.any?
      added.concat new_sources.map { |source| "* source: #{source}" }
    end

    if deleted_sources.any?
      deleted.concat deleted_sources.map { |source| "* source: #{source}" }
    end

    changes = true
  end

  both_sources = Hash.new { |h,k| h[k] = ["no specified source", "no specified source"] }
  @dependencies.each { |d| both_sources[d.name][0] = d.source if d.source }
  @locked_deps.each  { |d| both_sources[d.name][1] = d.source if d.source }
  both_sources.delete_if { |k,v| v[0] == v[1] }

  if @dependencies != @locked_deps
    new_deps = @dependencies - @locked_deps
    deleted_deps = @locked_deps - @dependencies

    if new_deps.any?
      added.concat new_deps.map { |d| "* #{pretty_dep(d)}" }
    end

    if deleted_deps.any?
      deleted.concat deleted_deps.map { |d| "* #{pretty_dep(d)}" }
    end

    both_sources.each do |name, sources|
      changed << "* #{name} from `#{sources[0]}` to `#{sources[1]}`"
    end

    changes = true
  end

  msg << "\n\nYou have added to the Gemfile:\n"     << added.join("\n") if added.any?
  msg << "\n\nYou have deleted from the Gemfile:\n" << deleted.join("\n") if deleted.any?
  msg << "\n\nYou have changed in the Gemfile:\n"   << changed.join("\n") if changed.any?
  msg << "\n"

  raise ProductionError, msg if added.any? || deleted.any? || changed.any?
end

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# File 'lib/bundler/definition.rb', line 84

def fixup_dependency_types!
  # XXX This is a temporary workaround for a bug when using rubygems 1.8.15
  # where Gem::Dependency#== matches Gem::Dependency#type. As the lockfile
  # doesn't carry a notion of the dependency type, if you use
  # add_development_dependency in a gemspec that's loaded with the gemspec
  # directive, the lockfile dependencies and resolved dependencies end up
  # with a mismatch on #type.
  # Test coverage to catch a regression on this is in gemspec_spec.rb
  @dependencies.each do |d|
    if ld = @locked_deps.find { |l| l.name == d.name }
      ld.instance_variable_set(:@type, d.type)
    end
  end
end

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# File 'lib/bundler/definition.rb', line 215

def groups
  dependencies.map { |d| d.groups }.flatten.uniq
end

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# File 'lib/bundler/definition.rb', line 184

def index
  @index ||= Index.build do |idx|
    dependency_names = @dependencies.dup || []
    dependency_names.map! {|d| d.name }

    @sources.each do |s|
      if s.is_a?(Bundler::Source::Rubygems)
        s.dependency_names = dependency_names.uniq
        idx.add_source s.specs
      else
        source_index = s.specs
        dependency_names += source_index.unmet_dependency_names
        idx.add_source source_index
      end
    end
  end
end

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# File 'lib/bundler/definition.rb', line 219

def lock(file)
  contents = to_lock

  # Convert to \r\n if the existing lock has them
  # i.e., Windows with `git config core.autocrlf=true`
  contents.gsub!(/\n/, "\r\n") if @lockfile_contents.match("\r\n")

  return if @lockfile_contents == contents

  if Bundler.settings[:frozen]
    Bundler.ui.error "Cannot write a changed lockfile while frozen."
    return
  end

  File.open(file, 'wb'){|f| f.puts(contents) }
rescue Errno::EACCES
  raise Bundler::InstallError,
    "There was an error while trying to write to Gemfile.lock. It is likely that \n" \
    "you need to allow write permissions for the file at path: \n" \
    "#{File.expand_path(file)}"
end

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# File 'lib/bundler/definition.rb', line 138

def missing_specs
  missing = []
  resolve.materialize(requested_dependencies, missing)
  missing
end

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# File 'lib/bundler/definition.rb', line 134

def new_platform?
  @new_platform
end

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# File 'lib/bundler/definition.rb', line 126

def new_specs
  specs - @locked_specs
end

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# File 'lib/bundler/definition.rb', line 130

def removed_specs
  @locked_specs - specs
end

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# File 'lib/bundler/definition.rb', line 144

def requested_specs
  @requested_specs ||= begin
    groups = self.groups - Bundler.settings.without
    groups.map! { |g| g.to_sym }
    specs_for(groups)
  end
end

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# File 'lib/bundler/definition.rb', line 162

def resolve
  @resolve ||= begin
    if Bundler.settings[:frozen] || (!@unlocking && nothing_changed?)
      @locked_specs
    else
      last_resolve = converge_locked_specs

      # Record the specs available in each gem's source, so that those
      # specs will be available later when the resolver knows where to
      # look for that gemspec (or its dependencies)
      source_requirements = {}
      dependencies.each do |dep|
        next unless dep.source
        source_requirements[dep.name] = dep.source.specs
      end

      # Run a resolve against the locally available gems
      last_resolve.merge Resolver.resolve(expanded_dependencies, index, source_requirements, last_resolve)
    end
  end
end

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# File 'lib/bundler/definition.rb', line 105

def resolve_remotely!
  raise "Specs already loaded" if @specs
  @remote = true
  @sources.each { |s| s.remote! }
  specs
end

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# File 'lib/bundler/definition.rb', line 99

def resolve_with_cache!
  raise "Specs already loaded" if @specs
  @sources.each { |s| s.cached! }
  specs
end

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# File 'lib/bundler/definition.rb', line 204

def rubygems_index
  @rubygems_index ||= Index.build do |idx|
    rubygems = @sources.find{|s| s.is_a?(Source::Rubygems) }
    idx.add_source rubygems.specs
  end
end

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# File 'lib/bundler/definition.rb', line 211

def rubygems_remotes
  @sources.select{|s| s.is_a?(Source::Rubygems) }.map{|s| s.remotes }.flatten
end

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# File 'lib/bundler/definition.rb', line 112

def specs
  @specs ||= begin
    specs = resolve.materialize(requested_dependencies)

    unless specs["bundler"].any?
      local = Bundler.settings[:frozen] ? rubygems_index : index
      bundler = local.search(Gem::Dependency.new('bundler', VERSION)).last
      specs["bundler"] = bundler if bundler
    end

    specs
  end
end

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# File 'lib/bundler/definition.rb', line 156

def specs_for(groups)
  deps = dependencies.select { |d| (d.groups & groups).any? }
  deps.delete_if { |d| !d.should_include? }
  specs.for(expand_dependencies(deps))
end

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# File 'lib/bundler/definition.rb', line 241

def to_lock
  out = ""

  sorted_sources.each do |source|
    # Add the source header
    out << source.to_lock
    # Find all specs for this source
    resolve.
      select  { |s| s.source == source }.
      # This needs to be sorted by full name so that
      # gems with the same name, but different platform
      # are ordered consistantly
      sort_by { |s| s.full_name }.
      each do |spec|
        next if spec.name == 'bundler'
        out << spec.to_lock
    end
    out << "\n"
  end

  out << "PLATFORMS\n"

  platforms.map { |p| p.to_s }.sort.each do |p|
    out << "  #{p}\n"
  end

  out << "\n"
  out << "DEPENDENCIES\n"

  handled = []
  dependencies.
    sort_by { |d| d.to_s }.
    each do |dep|
      next if handled.include?(dep.name)
      out << dep.to_lock
      handled << dep.name
  end

  out
end

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# File 'lib/bundler/definition.rb', line 345

def validate_ruby!
  return unless ruby_version

  system_ruby_version = Bundler::SystemRubyVersion.new
  if diff = ruby_version.diff(system_ruby_version)
    problem, expected, actual = diff

    msg = case problem
    when :engine
      "Your Ruby engine is #{actual}, but your Gemfile specified #{expected}"
    when :version
      "Your Ruby version is #{actual}, but your Gemfile specified #{expected}"
    when :engine_version
      "Your #{system_ruby_version.engine} version is #{actual}, but your Gemfile specified #{ruby_version.engine} #{expected}"
    end

    raise RubyVersionMismatch, msg
  end
end