rspec users - Feb 2009 - Rcov - Specifying rake tasks

I am trying to get a customized rcov rake task working.  What I have so
far looks like this:

desc "Rcov code coverage reports"

require ''rcov/rcovtask''
require ''spec/rake/spectask''
require ''cucumber/rake/task''

task  :rcov =>  "rcov:all"

namespace :rcov do

  Rcov::RcovTask.new(:all) do
    task :rcov => "rcov:cucumber"
  end

  Cucumber::Rake::Task.new(:cucumber) do |t|
    ...

  Spec::Rake::SpecTask.new(:rspec) do |t
    ...

  Rcov::RcovTask.new(:testunit) do |t|
    ...

Now, rake rcov:cucumber runs the cucumber rcov task as expected.
However, both rake rcov and rake rcov:all run rake rcov:testunit.  I
cannot fathom why.  Can someone explain this to me?
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I am having a good deal of trouble grappling with how rake tasks are 
processed. In my rcov.rake file I have this:

desc "Rcov code coverage reports"

require ''rcov/rcovtask''
require ''spec/rake/spectask''
require ''cucumber/rake/task''

#task  :rcov =>  "rcov:complete"

namespace :rcov do
  ...

  Cucumber::Rake::Task.new(:cucumber) do |t|
    puts "Why am I in the cucumber task?
    ...
  end

  Spec::Rake::SpecTask.new(:rspec) do |t|
    puts "Why am I in the rspec task?
    ...
    end
  end

  Rcov::RcovTask.new(:testunit) do |t|
    puts "Why am I in the rspec task?
    ...
  end

  Rcov::RcovTask.new(:complete) do
    puts "What the hell am I doing here?"
    ...
  end

end

When I run rake rcov:cucumber I see this:

Why am I in the cucumber task?
Why am I in the rspec task?
Why am I in the testunit task?
What the hell am I doing here?

This indicates that the entire rake task is processed regardless of the 
argument given, which to me makes no sense at all.  Can somebody explain 
why I am observing this behaviour?
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James Byrne wrote:
> I am having a good deal of trouble grappling with how rake tasks are 
> processed. In my rcov.rake file I have this:
I think that I have this straightened now. 
Cucumber::Rake::Task.new(:cucumber) etc. are factory methods that are 
processed as encountered by rake.


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Posted via http://www.ruby-forum.com/.

James Byrne wrote:
> I think that I have this straightened now. 
> Cucumber::Rake::Task.new(:cucumber) etc. are factory methods that are 
> processed as encountered by rake.
Having spent the day delving into Rake and the internals of factory 
methods for Rake included with RSpec and Cucumber, I did a little write 
up on how to create a custom Rake task for Rcov.  I would appreciate it 
if people with a deeper knowledge of Rake and Rcov would review this 
document and point out any errors or misunderstandings that it may 
contain.

The URL is 
http://wiki.rubyonrails.org/rails/pages/HowToCustomizeAnRcovRakeTask

Thanks
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