I am trying to make this metric_fu get to work but I am getting a weird error.
braga@braga-laptop:~/prj/dummy_app$ rake metrics:all --trace
(in /home/braga/prj/dummy_app)
rake aborted!
RubyGem version error: chronic(0.6.2 not ~> 0.3.0)
/usr/local/lib/site_ruby/1.8/rubygems.rb:812:in `report_activate_error'
/usr/local/lib/site_ruby/1.8/rubygems.rb:223:in `activate'
/usr/local/lib/site_ruby/1.8/rubygems.rb:258:in `activate'
/usr/local/lib/site_ruby/1.8/rubygems.rb:257:in `each'
/usr/local/lib/site_ruby/1.8/rubygems.rb:257:in `activate'
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:33:in `require'
/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.14/lib/active_support/dependencies.rb:182:in `require'
/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.14/lib/active_support/dependencies.rb:547:in `new_constants_in'
/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.14/lib/active_support/dependencies.rb:182:in `require'
/home/braga/prj/dummy_app/Rakefile:12
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2383:in `load'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2383:in `raw_load_rakefile'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2017:in `load_rakefile'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2016:in `load_rakefile'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2000:in `run'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:1998:in `run'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/bin/rake:31
/usr/bin/rake:19:in `load'
/usr/bin/rake:19
In Rakefile line 12 all I have done is given require 'metric_fu'. I tried uninstalling the chronic gem. Installed separate versions of 0.3.0 and 0.6.2 in all combinations. But still I cannot run the metrics. Any help would be much appreciated.
The rails version and ruby versions I use are
braga@braga-laptop:~/prj/dummy_app$ rails --version
Rails 2.3.14
braga@braga-laptop:~/prj/dummy_app$ ruby --version
ruby 1.8.7 (2010-08-16 patchlevel 302) [i686-linux]
Apparently, this is a known problem. Metric_fu is very obtrusive, meaning it does not run out of the box for a rails project. Iain has created an excellent gem called metrical which wraps metric_fu and takes care of all the dependencies. And the most exciting feature is, it totally runs independent from the project.
To quickly get up and running look at this wonderful railscast by Ryan.