On 09/12/2015 12:41 AM, Jóhann B. Guðmundsson wrote:
On 09/11/2015 09:09 PM, Orion Poplawski wrote:
What does Fedora users gain with "dnf
install rails" or "dnf install ipython" versus "gem install rails"
and "pip
install ipython"?
This indeed is very good question.
I'm not sure how things are elsewhere in the world but in the case of
gem's on a rock in the middle of the north atlantic ocean , everybody
is using bundler with nobody wanting to go back to non existing or not
current gem's in distributions and or having to manually chase down
components and resolve their dependency's.
They prefer spending that time actually hacking or drinking beer or both.
JBG
I would argue that the most valuable thing apart from the security
tracking is that you can properly specify _all_ dependencies the gem
actually have. This is a big one for at least few reasons:
1, end-users don't have to go read README to know what to install so
that the software actually starts working
2, avoids compilation errors due to the missing header files or conflicts
3, installation is faster and more predictable
If someone has a problem with installing a gem, he/she can install
rubygem-* package on Fedora and it's done (they can easily combine them
with upstream gems). It's also quite nice that a beginner can just dnf
install some framework if he just want to quickly try/evalute it, but
does not want to spend afternoon hunting installation issues. This seems
less relevant for experience people, e.g. I know how to fix problems
with Ruby, but when I need to do a little of Python work I prefer to
install Fedora packages rather than trying to make pip work for me.
But generally there are other (small) things as well...you don't need to
install any junk like -devel packages on your system, you can track all
your software with rpm/dnf (e.g. you can rollback a transaction), the
gem can come with man pages, etc.
p.s. they are however disadvantages as well
Josef
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