Gem::RequestSet

Attributes

always_install[R]

Array of gems to install even if already installed

dependencies[R]

development[RW]

soft_missing[RW]

Treat missing dependencies as silent errors

Public Class Methods

new(*deps) click to toggle source

 
               # File rubygems/request_set.rb, line 26
def initialize *deps
  @dependencies = deps

  @always_install = []
  @development    = false
  @soft_missing   = false

  yield self if block_given?
end

Public Instance Methods

gem(name, *reqs) click to toggle source

Declare that a gem of name name with reqs requirements is needed.

 
               # File rubygems/request_set.rb, line 39
def gem name, *reqs
  @dependencies << Gem::Dependency.new(name, reqs)
end

import(deps) click to toggle source

Add deps Gem::Dependency objects to the set.

 
               # File rubygems/request_set.rb, line 46
def import deps
  @dependencies += deps
end

install(options, &block) click to toggle source

 
               # File rubygems/request_set.rb, line 50
def install options, &block
  if dir = options[:install_dir]
    return install_into dir, false, options, &block
  end

  cache_dir = options[:cache_dir] || Gem.dir

  specs = []

  sorted_requests.each do |req|
    if req.installed? and
       @always_install.none? { |spec| spec == req.spec.spec } then
      yield req, nil if block_given?
      next
    end

    path = req.download cache_dir

    inst = Gem::Installer.new path, options

    yield req, inst if block_given?

    specs << inst.install
  end

  specs
end

install_into(dir, force = true, options = {}) click to toggle source

 
               # File rubygems/request_set.rb, line 78
def install_into dir, force = true, options = {}
  existing = force ? [] : specs_in(dir)
  existing.delete_if { |s| @always_install.include? s }

  dir = File.expand_path dir

  installed = []

  sorted_requests.each do |req|
    if existing.find { |s| s.full_name == req.spec.full_name }
      yield req, nil if block_given?
      next
    end

    path = req.download(dir)

    unless path then # already installed
      yield req, nil if block_given?
      next
    end

    options[:install_dir] = dir
    options[:only_install_dir] = true

    inst = Gem::Installer.new path, options

    yield req, inst if block_given?

    inst.install

    installed << req
  end

  installed
end

load_gemdeps(path) click to toggle source

Load a dependency management file.

 
               # File rubygems/request_set.rb, line 117
def load_gemdeps path
  gf = Gem::RequestSet::GemDepedencyAPI.new self, path
  gf.load
end

resolve(set = nil) click to toggle source

Resolve the requested dependencies and return an Array of Specification objects to be activated.

 
               # File rubygems/request_set.rb, line 126
def resolve set = nil
  resolver = Gem::DependencyResolver.new @dependencies, set
  resolver.development  = @development
  resolver.soft_missing = @soft_missing

  @requests = resolver.resolve
end

resolve_current() click to toggle source

Resolve the requested dependencies against the gems available via Gem.path and return an Array of Specification objects to be activated.

 
               # File rubygems/request_set.rb, line 138
def resolve_current
  resolve Gem::DependencyResolver::CurrentSet.new
end

sorted_requests() click to toggle source

 
               # File rubygems/request_set.rb, line 142
def sorted_requests
  @sorted ||= strongly_connected_components.flatten
end

specs() click to toggle source

 
               # File rubygems/request_set.rb, line 146
def specs
  @specs ||= @requests.map { |r| r.full_spec }
end

specs_in(dir) click to toggle source

 
               # File rubygems/request_set.rb, line 150
def specs_in dir
  Dir["#{dir}/specifications/*.gemspec"].map do |g|
    Gem::Specification.load g
  end
end

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Gem::RequestSet

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