Module: Server::Starter::Helper

Included in:
Server::Starter
Defined in:
lib/server/starter/helper.rb

Instance Method Summary collapse

Instance Method Details

#bundler_with_clean_env(&block) ⇒ Object

A small tweaked version of Bundler.with_clean_env

Bundler has Bundler.with_clean_env by its own, but the method replace ENV with ENV captured on starting. cf. github.com/bundler/bundler/blob/e8c962ef2a3215cdc6fd411b6724f091a16793d6/lib/bundler.rb#L230 Server::Starter changes ENV during running to communicate with child processes, so we need to keep the changed ENV. This is why I needed this small tweaked version



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# File 'lib/server/starter/helper.rb', line 38

def bundler_with_clean_env(&block)
  if defined?(Bundler)
    begin
      orig_env = ENV.to_hash
      ENV.delete_if { |k,_| k[0,7] == 'BUNDLE_' }
      if ENV.has_key? 'RUBYOPT'
        ENV['RUBYOPT'] = ENV['RUBYOPT'].sub '-rbundler/setup', ''
      end
      %w[RUBYLIB GEM_HOME].each {|key| ENV.delete(key) }
      yield
    ensure
      ENV.replace(orig_env)
    end
  else
    yield
  end
end

#croak(msg) ⇒ Object 



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# File 'lib/server/starter/helper.rb', line 8

def croak(msg)
  $stderr.puts msg
  exit 1
end

#die(msg) ⇒ Object 



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# File 'lib/server/starter/helper.rb', line 13

def die(msg)
  if $!
    $stderr.puts "#{msg}:#{$!.class} #{$!.message}"
  else
    $stderr.puts msg
  end
  exit 1
end

#warn(msg) ⇒ Object 



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# File 'lib/server/starter/helper.rb', line 4

def warn(msg)
  $stderr.puts msg
end

#with_local_env(local_env, &block) ⇒ Object 



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# File 'lib/server/starter/helper.rb', line 22

def with_local_env(local_env, &block)
  orig_env = local_env.keys.map {|k| [k, ENV[k]] }.to_h
  ENV.update(local_env)
  yield
ensure
  ENV.update(orig_env)
end