[Rock-dev] [Autoproj] Defining a custom package type for boost

[Sylvain Joyeux]

>>     But then in my .autobuild file, I guessed that boost_package
>>     'boost1.48' would have worked, but autoproj complains that
>>     boost_package does not exist.
>>     In source.yml, I have set the archive url for boost1.48.
>     OK ... You need to have a look in autoproj/autobuild.rb. That is
>     where the package types are made available for autoproj users (in
>     short: you need to define the boost_package method at the
>     toplevel, not on the Autobuild module). This is a bit of a
>     historical thing ...
>
>
> ok. but I don't find where the ':cmake' package type is defined... how 
> should I call package_common to point to the BoostPackage class I have 
> defined?
This sucks ... Thanks for pointing it out.

The chain is:

   at toplevel: def cmake_package ... end
   calls: package_common(:cmake, ...)
   calls: Autoproj.define(:cmake, options)
   calls: Autobuild.cmake(options)

So, you do need to define the method on Autobuild (the way you did) and 
then define the boost_package at toplevel, which

In the future, I will change this so that the code gets package classes 
directly (while keeping backward compatibility), which makes a lot more 
sense. Instead of defining your own package type (which is a one-time 
thing ...) you will then be able to directly define the whole package in 
an autobuild file:

   package_common(Autobuild::Configurable, 'boost') do |pkg|
     def pkg.configure
        ...
     end
     def pkg.build
        ...
     end
   end

Sylvain
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