Hi all,

I've just hit what I consider to be a bug, but may be a design
choice which I don't yet understand: It appears that repository
dependencies cannot refer to other Tool Sheds.

As an example, I want to explore some more complicated
dependency work in my Blast2GO wrapper (I'd like it to be
able to download the underlying Java tool automatically).
I therefore started by uploading the previous releases to the
Test Tool Shed,

http://toolshed.g2.bx.psu.edu/view/peterjc/blast2go -->
http://testtoolshed.g2.bx.psu.edu/view/peterjc/blast2go -->

The Blast2GO wrapper requires the 'blastxml' format, which
is declared via a repository_dependencies.xml file as follows:

<?xml version="1.0"?>
<repositories description="This requires the BLAST datatype
definitions (e.g. the BLAST XML format).">
<!-- Revision 4:f9a7783ed7b6 on the main tool shed is v0.0.14 which
added BLAST databases -->
<repository toolshed="http://toolshed.g2.bx.psu.edu";
name="blast_datatypes" owner="devteam"
changeset_revision="f9a7783ed7b6" />

Unfortunately, uploading versions of the Blast2GO wrapper with
this definition (which points at the main tool shed) to the test
tool shed results in this error message:

repository_dependencies.xml - Repository dependencies are currently
supported only within the same tool shed. Ignoring repository
dependency definition for tool shed http://toolshed.g2.bx.psu.edu,
name blast_datatypes, owner devteam, changeset revision f9a7783ed7b6.

Given the idea of an ecosystem of Tool Sheds, with some
groups maintaining their own local Tool Shed and perhaps
publishing tools there, it seems likely we will need to be
able to define dependencies on other tool sheds - and in
particularly the main tool shed at Penn State which I see
having a hub-like role. But right now, that doesn't work.

Is this a short term limitation (since cross-Tool Shed
dependencies are bound to be more complex to support),
or a deliberate policy?


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