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# frozen_string_literal: true
module Bundler
class CLI::Init
attr_reader :options
def initialize(options)
@options = options
end
def run
if File.exist?(gemfile)
Bundler.ui.error "#{gemfile} already exists at #{File.expand_path(gemfile)}"
exit 1
end
unless File.writable?(Dir.pwd)
Bundler.ui.error "Can not create #{gemfile} as the current directory is not writable."
exit 1
end
if options[:gemspec]
gemspec = File.expand_path(options[:gemspec])
unless File.exist?(gemspec)
Bundler.ui.error "Gem specification #{gemspec} doesn't exist"
exit 1
end
spec = Bundler.load_gemspec_uncached(gemspec)
File.open(gemfile, "wb") do |file|
file << "# Generated from #{gemspec}\n"
file << spec.to_gemfile
end
else
File.open(File.expand_path("../templates/Gemfile", __dir__), "r") do |template|
File.open(gemfile, "wb") do |destination|
IO.copy_stream(template, destination)
end
end
end
puts "Writing new #{gemfile} to #{SharedHelpers.pwd}/#{gemfile}"
end
private
def gemfile
@gemfile ||= options[:gemfile] || Bundler.preferred_gemfile_name
end
end
end
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