what is the current correct repos structure for mac osx binaries?

Dear R-developers,

As part of our package building process, we maintain internal CRAN-like repositories of our packages.  This has worked pretty well, but we are running into issues with R 3.1 and OSX mavericks.

Specifically, machines with osx mavericks seem to, by default, expect packages to be located under a 'mavericks' sub-directory, but this is not the location reported when generating a mac.binary appropriate contrib url.

contrib.url('foo')
[1] "foo/bin/macosx/mavericks/contrib/3.1/"

If I ask where the mac binaries are on a linux machine (AND on mac mavericks machines) I get

contrib.url('foo',type='mac.binary')
[1] "foo/bin/macosx/mavericks/contrib/3.1/"

I don't think that is true. On all machines (Linux, OS X, ...) I get
contrib.url('foo', type='mac.binary')
[1] "foo/bin/macosx/contrib/3.1"

Note that the type for the mavericks build is "mac.binary.mavericks", so on all machines you also get
contrib.url('foo',type='mac.binary.mavericks')
[1] "foo/bin/macosx/mavericks/contrib/3.1"

The only difference are the defaults for pkgType - they differ by the build, but the repo structure is fixed and consistent across all platforms.

Cheers,
Simon
But the OSX machine gives an error and fails to locate the packages if they are located at foo/bin/macosx/contrib/3.1/

So where are the mac binaries supposed to located in a CRAN-like repository so that they can be installed on a mac with the default install command?  And is there a way for a non-mac machine (i.e. our linux deploy server) to determine that directory other than contrib.url(,type='mac.binary) ?

thanks for your help,
-skye

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what is the current correct repos structure for mac osx binaries?

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