[R-repo-dev] Dependencies

Pierre-Yves pingou at pingoured.fr
Tue Sep 28 10:11:07 EDT 2010

On Tue, 2010-09-28 at 09:58 -0400, Allen S. Rout wrote:
> >> On Tue, 28 Sep 2010 14:47:41 +0200, Pierre-Yves <pingou at pingoured.fr> said:
> > On Tue, 2010-09-28 at 08:38 -0400, Allen S. Rout wrote:
> >> > Allen, do you still have the first version of the script to generate
> >> > the order in which the packages should be built (without taking into
> >> > account the "Suggests" dependencies) ?
> >> Yes; All the previous links are still there; most recent, I think: 
> > I was more thinking of the R script which you generated which give
> > the order in which we can build the package.
> That wasn't R; that was in the python.  From my notes:

Didn't you do one for the whole cran ?
The script for which you mailed the R-devel mailing-list.

> ---------
> # clear; R2spec  -n "Allen S. Rout" -e "asr at ufl.edu"  -c   --force  --suggests  --verbose  --package  ggplot2
> This downloaded the CRAN-like lists of packages, downloaded source
> tarballs, and built (and copied) the specfiles and source.  
> It also generated a few dot files, including the broad and narrow
> dependency graphs for the requested package.
> It also generates a 'buildorderlist'; a path through the depgraph such
> that each package is attempted only after its dependencies are
> processed.
> ---------
> Other than using templates instead of assembling text by hand, The big
> chunk of work in my branch of R2spec was teasing apart the different
> dependencies, and storing them in a pile of Sets in cfg, and a
> dependency graph.
> Then, at the end of my R2spec.py, in the last loop before sys.exit, I:
> while (there's still something in the depgraph)
>       Look at all the keys.
>           If there's something without any dependencies left,
> 	      add it to the build order list and script.
> 	      Remove that dependency from everything else in the depgraph.
> > After I will just modify R2spec to add a --nocheck parameter for the
> > generation of the spec file without the %check section and the
> > generation of the Requirement without the "suggests".
> I'm happy for you to use any of my code which you can, and to explain
> what I'm doing in it.

I still want to implement the -d/--dependencies option in R2rpm and I
will likely come back to your algorithm for that :)



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