Question

由于某种原因，一些开发人员使用了宝石而其他开发人员不使用。

有时候我会遇到这样的代码：

if File.exist?('USE_MY_GEM')
  gem 'my_gem'
end

用USE_MY_GEM写的

和.gitignore。但我相信这不是很好的做法。

如何为特定机器关闭/打开宝石？

Answer 1

我会选择Bundler groups feature。这样Gemfile可能包含组，包含一些开发人员使用的多余gem。

来自文档：

限制要添加到加载路径的gem组。只有这些组中的宝石才需要具备：
require 'rubygems'
require 'bundler'
Bundler.setup(:default, :ci)
require 'nokogiri'

Answer 2

嗯，解决方案很明显。

我们可以通过管理群组的方式管理宝石。

只需将gem包装在一个组中，然后添加Unhandled Error Traceback (most recent call last): File "/opt/zenith/env/local/lib/python2.7/site-packages/twisted/python/log.py", line 73, in callWithContext return context.call({ILogContext: newCtx}, func, *args, **kw) File "/opt/zenith/env/local/lib/python2.7/site-packages/twisted/python/context.py", line 118, in callWithContext return self.currentContext().callWithContext(ctx, func, *args, **kw) File "/opt/zenith/env/local/lib/python2.7/site-packages/twisted/python/context.py", line 81, in callWithContext return func(*args,**kw) File "/opt/zenith/env/local/lib/python2.7/site-packages/twisted/internet/posixbase.py", line 614, in _doReadOrWrite why = selectable.doRead() --- <exception caught here> --- File "/opt/zenith/env/local/lib/python2.7/site-packages/twisted/internet/udp.py", line 248, in doRead self.protocol.datagramReceived(data, addr) File "/opt/zenith/operations/network.py", line 311, in datagramReceived self.reactFunction(datagram, (host, port)) File "/opt/zenith/operations/schema_sqlite.py", line 309, in writeDatapoint logger.debug("Data written: {0}".format(dataz)) File "/opt/zenith/operations/model.py", line 1770, in __repr__ repr_info = "Set: {0}, User: {1}, Reps: {2}".format(self.setNumber, self.user, self.repCount) File "/opt/zenith/env/local/lib/python2.7/site-packages/sqlalchemy/orm/attributes.py", line 239, in __get__ return self.impl.get(instance_state(instance), dict_) File "/opt/zenith/env/local/lib/python2.7/site-packages/sqlalchemy/orm/attributes.py", line 589, in get value = callable_(state, passive) File "/opt/zenith/env/local/lib/python2.7/site-packages/sqlalchemy/orm/state.py", line 424, in __call__ self.manager.deferred_scalar_loader(self, toload) File "/opt/zenith/env/local/lib/python2.7/site-packages/sqlalchemy/orm/loading.py", line 563, in load_scalar_attributes (state_str(state))) sqlalchemy.orm.exc.DetachedInstanceError: Instance <Set at 0x1c96b90> is not bound to a Session; attribute refresh operation cannot proceed选项：

--without

Gemfile

在控制台中：

group :my_gem do
  gem 'my_gem'
end

确保$ bundle install --without my_gem包含：

.gitignore

如何忽略每台计算机的宝石？

2 个答案: