When creating a new Rails application, why is there a Gemfile.lock file without running bundle install? -

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and, how system install gems application without going through bundle install process?

note: question process of creating new application. not same question in rails, why there new gemfile.lock when no bundle or bundle install run? (and new gemfile timestamp too) .

gemfile.lock snapshot of gems , versions created when run bundle install. explained in checking code version control section of bundler rationale:

gemfile.lock makes application single package of both own code , third-party code ran last time know sure worked. specifying exact versions of third-party code depend on in gemfile not provide same guarantee, because gems declare range of versions dependencies.

gems can installed outside of bundler rubygems (e.g. gem install gem_name) it's best use rvm allows install separate versions of ruby , manage individual gemsets each application explained in rvm best practices.


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