[katello-devel] Gemfile split

[Lukas Zapletal]

Hello,

my Gemfile split PR was finally merged and I am happy to deliver this
for Katello 1.2. More in the upcoming blog post, but the main thing is:

Gemfile now only lists production gems, all other groups are in bundle.d
directory:

  $ ls bundler.d/ -1
  apipie.rb
  coverage.rb
  debugging.rb
  development_boost.rb
  development.rb
  foreman.rb
  checking.rb
  profiling.rb
  test.rb

The change is not bringing any change in bundler behavior, everything
remains the same except the gems are in different files. I also
reordered them, cleaned it out, put several TODOs there and also I have
split development and test into two separate groups.

During development you usually work with bundler while on production
setup or RPM-development setup you have bundler_ext enabled. To enable
bundler_ext install all RPM dependencies and then rename Gemfile as
Gemfile.in - that's it. Rename back and you have bundler back.

The most important bit that loads groups was extended a bit:

https://gist.github.com/4215458

Short description. With bundler enabled, we load the following groups:

production -> default, foreman
development -> ditto + development, apipie, development_boost
test -> ditto + test, debugging

In bundler_ext mode we load them ALL by default so you can install or
remove various katello "plugins" giving you gems you want. We currently
only have the following devel "plugins":

  * katello-devel-all (installs all groups bellow)
  * katello-devel (development rubygem group)
  * katello-devel-test (unit testing rubygem group)
  * katello-devel-profiling (profiling rubygem group)
  * katello-devel-checking (javascript analysis rubygem group)
  * katello-devel-coverage (test coverage measurement group)
  * katello-devel-debugging (ruby debugger dependencies)

Well yeah, there actually IS the first plugin called "foreman". The
bundler.d/foreman.rb is only installed when you install
katello-glue-foreman. Without it, katello do not need foreman_api
rubygem.

There is one exception in the bundler_ext mode - if webmock is found and
Rails environment is not "test", we disable it's mocking capabilities
because it development or production mode with katello-devel-test
package installed it was causing issues (blocking from HTTP queries).

Therefore to use test rake tasks in RPM-based dev setup, use this:

RAILS_ENV=test rake test xyz ...

By the way, this made RPM Development Setup even more simple:

https://fedorahosted.org/katello/wiki/DevelopmentSetup

The shortest possible path now:

1) Install katello
2) Install katello-devel-all
3) Set KATELLO_ENV=development in the sysconfig file
4) Restart

LZ

-- 
Later,

 Lukas "lzap" Zapletal
 #katello #systemengine