Re: what's the relationship between rubygem deps and gem installing them?

[Robert P. J. Day]

On Fri, 12 Mar 2021, Samuel Sieb wrote:

>  On 3/12/21 2:28 PM, Robert P. J. Day wrote:
>  >
>  >    possibly off-topic as it likely applies to other linux distros, but
>  > i'm diving into ruby and i'm well aware that if i install, say,
>  > vagrant, it comes with a pile of rubygem dependencies:
>  >
>  > Installing:
>  >   vagrant               noarch    2.2.9-3.fc33                 fedora
>  > 572 k
>  > Installing dependencies:
>  >   bsdtar                x86_64    3.5.1-1.fc33                 updates
>  >   65 k
>  >   rubygem-childprocess  noarch    1.0.1-6.fc33                 fedora
>  >   60 k
>  >   rubygem-domain_name   noarch    0.5.20190701-3.fc33          fedora
>  >   53 k
>  >   rubygem-erubis        noarch    2.7.0-23.fc33                fedora
>  >   39 k
>  >   rubygem-ffi           x86_64    1.12.1-3.fc33                fedora
>  >   106 k
>  >   rubygem-fog-libvirt   noarch    0.7.0-3.fc33                 fedora
>  >   33 k
>  > ... etc etc ...
>  >
>  >    fair enough, but is there any effect from personally installing
>  > any of those ruby gems using "gem install"? if i install ruby gems
>  > as a regular user, they get planted under ~/.gem/..., but i assume
>  > those are not taken into account when i'm installing vagrant.
>  >
>  >    on the other hand, if i install (as root) a gem using "gem
>  > install" under /usr/share/gems, will the install process take that
>  > into account?
>
>  Nothing that you install outside of rpm will be visible to dnf.  It
>  will still pull all those dependencies.  It should work the other
>  way though.  Any rpm gems you install should be visible to the ruby
>  installer. 
  i assumed as much, just wondered whether there was some weird,
sophisticated subtlety i was unaware of.

rday