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require_relative 'filesystem'
require_relative 'command_runner'
require_relative 'version'
module Tests
class Bundle
def initialize
@already_updating = false
@fs = Filesystem.new
end
def updating
if already_updating?
yield self
return
end
@already_updating = true
yield self
@already_updating = false
install_gems
end
def add_gem(gem, *args)
updating do
options = args.last.is_a?(Hash) ? args.pop : {}
version = args.shift
line = assemble_gem_line(gem, version, options)
fs.append_to_file('Gemfile', line)
end
end
def remove_gem(gem)
updating do
fs.comment_lines_matching('Gemfile', /^ *gem ("|')#{gem}\1/)
end
end
def install_gems
CommandRunner.run!('bundle install --local') do |runner|
runner.retries = 5
end
end
def version_of(gem)
Version.new(Bundler.definition.specs[gem][0].version)
end
def includes?(gem)
Bundler.definition.dependencies.any? do |dependency|
dependency.name == gem
end
end
def version
Bundler::VERSION
end
protected
attr_reader :fs
private
def already_updating?
@already_updating
end
def assemble_gem_line(gem, version, options)
formatted_options = options.
map { |key, value| "#{key}: #{formatted_value(value)}" }.
join(', ')
line = %(gem '#{gem}')
if version
line << %(, '#{version}')
end
if options.any?
line << %(, #{formatted_options})
end
line << "\n"
end
def formatted_value(value)
if value.is_a?(Pathname)
value.to_s.inspect
else
value.inspect
end
end
end
end
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