method

gemfile

Ruby latest stable (v2_5_5) - 0 notes - Class: Object

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gemfile(install = false, options = {}, &gemfile) public

Allows for declaring a Gemfile inline in a ruby script, optionally installing any gems that aren’t already installed on the user’s system.

@note Every gem that is specified in this ‘Gemfile’ will be `require`d, as if

the user had manually called `Bundler.require`. To avoid a requested gem
being automatically required, add the `:require => false` option to the
`gem` dependency declaration.

@param install [Boolean] whether gems that aren’t already installed on the

user's system should be installed.
Defaults to `false`.

@param gemfile [Proc] a block that is evaluated as a `Gemfile`.

@example Using an inline Gemfile

#!/usr/bin/env ruby

require 'bundler/inline'

gemfile do
  source 'https://rubygems.org'
  gem 'json', require: false
  gem 'nap', require: 'rest'
  gem 'cocoapods', '~> 0.34.1'
end

puts Pod::VERSION # => "0.34.4"

Show source

# File lib/bundler/inline.rb, line 34
def gemfile(install = false, options = {}, &gemfile)
  require "bundler"

  opts = options.dup
  ui = opts.delete(:ui) { Bundler::UI::Shell.new }
  raise ArgumentError, "Unknown options: #{opts.keys.join(", ")}" unless opts.empty?

  old_root = Bundler.method(:root)
  def Bundler.root
    Bundler::SharedHelpers.pwd.expand_path
  end
  Bundler::SharedHelpers.set_env "BUNDLE_GEMFILE", "Gemfile"

  Bundler::Plugin.gemfile_install(&gemfile) if Bundler.feature_flag.plugins?
  builder = Bundler::Dsl.new
  builder.instance_eval(&gemfile)

  definition = builder.to_definition(nil, true)
  def definition.lock(*); end
  definition.validate_runtime!

  missing_specs = proc do
    definition.missing_specs?
  end

  Bundler.ui = ui if install
  if install || missing_specs.call
    Bundler.settings.temporary(:inline => true) do
      installer = Bundler::Installer.install(Bundler.root, definition, :system => true)
      installer.post_install_messages.each do |name, message|
        Bundler.ui.info "Post-install message from #{name}:\n#{message}"
      end
    end
  end

  runtime = Bundler::Runtime.new(nil, definition)
  runtime.setup.require
ensure
  bundler_module = class << Bundler; self; end
  bundler_module.send(:define_method, :root, old_root) if old_root
end

gemfile

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