What does bundle install --without production do?

Question

Ive seen people using this and used it myself as told to do so. I just dont have a real grasp as what it actually does. I understand fully the bundle install part,

Answer 1

As you seen some people using following command(Which you said in your question):

bundle install --without production

--without production is a special flag which we are using.

For more explanation I am taking following example:

group :production do
  gem 'pg', '0.12.2'
end

Now, If I use following command:

bundle install --without production

In above command, the --without production option prevents the local installation of any production gem means whatever gems are in the production group will not be installed -- which in our example is just one gem: pg.