Re: [gentoo-portage-dev] [1/3] BUILD_PKGS: code

[Thomas de Grenier de Latour]

This is the code:
 * pym/portage_const.py: add BUILD_PKGS to the incremental variables
 * pym/portage.py, in the config class, adds:
    - a getprovides() method to get the list of virtuals a pkg
      provides. Code is from setinst(), and setinst() now calls
      this method. 
    - an issytem() method to check whether a package is in the
      system list or provides a virtual required by system. It
      uses getprovides().
 * pym/portage.py, in portdbapi, adds:
    - an istobuildpkg() method, which evaluates the BUILD_PKGS
      rules against a CPV. If matches, returns a non-empty string
      (the best matching rule), and else returns 0. It uses
      config.issystem().
 * bin/emerge:
    - deals with buildpkg/buildsyspkg deprecation, appending "*" or
      "system" to BUILD_PKGS if necessary.
    - reverses other "buildsyspkg" changes
    - in depgraph.merge(), call istobuildpkg() to check whether
      binary package should be created. If yes, do it (similar to
      --buildpkg), and also display which rule was matching.

-- 
TGL.