Menu
I know the command that works to do this, but I don't understand why. What is `...` doing in this context.
I know I can run:
heroku console
`gem list`
or
heroku console
`gem list`.split("\n")
to get a nice output, but I don't understand what these are doing. Why the ``?
875
When you deploy to Heroku, Bundler will be run automatically as long as a Gemfile is present. If you check in your Gemfile. lock, Heroku will run `bundle install --deployment` . If you want to exclude certain groups using the --without option, you need to use `heroku config` .
In Rails, bundler provides a constant environment for Ruby projects by tracking and installing suitable gems that are needed. It manages an application's dependencies through its entire life, across many machines, systematically and repeatably. To use bundler, you need to install it.
A Gemfile is a file that is created to describe the gem dependencies required to run a Ruby program. A Gemfile should always be placed in the root of the project directory.
I've updated this in-case someone happens to come across heroku console as it's been disabled.
heroku run gem list
Show gems installed via :git
heroku run bundle show
The back ticks effectively making a system call and return the response that was written to stdout. Take a look at the Kernel ruby docs for more info.
36
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
