R2rpm...

[Allen S. Rout]

The dependency resolution in R2spec introduces loops.

Try to build foreach or iterators.  In R2spec's calculation of deps,
they depend on each other.  This appears to be because R2spec promotes a
'suggests' to a 'depends'.

This might be because the 'suggests' is used in the vigniettes?

.... Argh.

Package: iterators
Type: Package
Title: Iterator construct for R
Version: 1.0.3
Author: REvolution Computing
Maintainer: REvolution Computing 
Description: Support for iterators, which allow a programmer to
        traverse through all the elements of a vector, list, or other
        collection of data.
Depends: R (>= 2.5.0), utils
Suggests: foreach
License: Apache License (== 2.0)
Packaged: 2009-10-05 20:31:21 UTC; weston
Repository: CRAN
Date/Publication: 2009-10-06 06:56:52

Package: foreach
Type: Package
Title: Foreach looping construct for R
Version: 1.3.0
Author: REvolution Computing
Maintainer: REvolution Computing 
Description: Support for the foreach looping construct.  Foreach is an
        idiom that allows for iterating over elements in a collection,
        without the use of an explicit loop counter.  This package in
        particular is intended to be used for its return value, rather
        than for its side effects.  In that sense, it is similar to the
        standard lapply function, but doesn't require the evaluation of
        a function.  Using foreach without side effects also
        facilitates executing the loop in parallel.
Depends: R (>= 2.5.0), iterators(>= 1.0.0), codetools, utils
License: Apache License (== 2.0)
Packaged: 2009-10-05 20:33:54 UTC; weston
Repository: CRAN
Date/Publication: 2009-10-06 06:56:45

- Allen S. Rout

[Pierre-Yves Chibon]

On Tue, 2011-04-12 at 15:27 -0400, Allen S. Rout wrote:
> The dependency resolution in R2spec introduces loops.
>
> Try to build foreach or iterators.  In R2spec's calculation of deps,
> they depend on each other.  This appears to be because R2spec promotes
> a 'suggests' to a 'depends'.
>
> This might be because the 'suggests' is used in the vigniettes?

As per Fedora R-packaging guidelines 'suggests' and 'depends' are
treated in the same way. This is a problem when trying to build lots of
packages in the row* so there now** a --nosuggest option available. This
option does what it says, it does not treat 'suggests' as
Requires/BuildRequires.
The --nocheck option might also be needed in this case as R CMD CHECK
normally complains when there is a 'suggests' missing.

Hope this helps,
Pierre

* Yes, I did try to build quite a part of cran using R2rpm/R2spec
** On the git repo, I have not made a release with these changes yet

[Allen S. Rout]

Pierre-Yves Chibon 
writes:
> On Tue, 2011-04-12 at 15:27 -0400, Allen S. Rout wrote:
> > The dependency resolution in R2spec introduces loops.
> >
> > Try to build foreach or iterators.  In R2spec's calculation of deps,
> > they depend on each other.  This appears to be because R2spec promotes
> > a 'suggests' to a 'depends'.
> >
> > This might be because the 'suggests' is used in the vigniettes?
>
> As per Fedora R-packaging guidelines 'suggests' and 'depends' are
> treated in the same way.

This is simply broken.  It is broken in two directions: It elevates to a
dependency the things which are only declared to be necessary for CHECK,
and it fails to account for 'Imports', which is an _actual_ dependency.

Try ggplot2 for an example of this.

- Allen S. Rout