def exec(*)
ARGV.delete("exec")
paths = (ENV["PATH"] || "").split(File::PATH_SEPARATOR)
paths.unshift "#{Bundler.bundle_path}/bin"
ENV["PATH"] = paths.uniq.join(File::PATH_SEPARATOR)
ENV["BUNDLE_GEMFILE"] = Bundler::SharedHelpers.default_gemfile.to_s
rubyopt = [ENV["RUBYOPT"]].compact
if rubyopt.empty? || rubyopt.first !~ /-rbundler\/setup/
rubyopt.unshift "-rbundler/setup"
rubyopt.unshift "-I#{File.expand_path('../..', __FILE__)}"
ENV["RUBYOPT"] = rubyopt.join(' ')
end
begin
Kernel.exec *ARGV
rescue Errno::EACCES
Bundler.ui.error "bundler: not executable: #{ARGV.first}"
rescue Errno::ENOENT
Bundler.ui.error "bundler: command not found: #{ARGV.first}"
Bundler.ui.warn "Install missing gem binaries with `bundle install`"
end
end