Installing and Using Multiple Versions of Lono
If you’re interested in running multiple or different versions of lono on the same machine, this page can help.
How to Use Multiple Versions: Short Answer
The short answer to running different versions of lono is always to use the lono version that’s in Gemfile.lock. You do this with bundle exec. Examples:
$ grep '"lono"' Gemfile
gem "lono", '~> 7.0.0'
$ bundle # to ensure version is installed and Gemfile.lock is up-to-date
$ grep '^ lono ' Gemfile.lock
lono (~> 7.0.0)
$ bundle exec lono -v
7.0.0
$
Change lono version in Gemfile:
$ grep '"lono"' Gemfile
gem "lono", '~> 8.0.0'
$ bundle
$ grep '^ lono ' Gemfile.lock
lono (~> 8.0.0)
$ bundle exec lono -v
8.0.0
$
To avoid having to remember to type bundle exec, you can use a shim.
Shim Wrapper
If have multiple versions of lono on the same system, you should always use the bundle exec command when you’re inside the Lono project. This ensures that the lono version in the project’s Gemfile.lock is used. Typing bundle exec can get old quick, so you can use a shim wrapper to save yourself previous finger-typing energy.