Portfile for a virtual port?

[Bradley Giesbrecht]

On Aug 8, 2011, at 10:46 AM, Bradley Giesbrecht wrote:

> On Aug 8, 2011, at 10:41 AM, Mike O'Brien wrote:
> 
>> 	We need to construct a virtual port.  We wish to allow our users to have one-click installation access to a coterie of ports in MacPorts, between six and twenty of them which are constituent ports making up an open-source Matlab replacement called Python(x,y).  There is no current metaport for this, and no instructions on how to make one, though it is trivially easy (thank you!) to construct a metapackage for a single port and all of its dependencies.
>> 
>> 	What I'm looking to construct is a port which itself installs nothing, but whose dependencies cause all of the constituent ports comprising Python(x,y) to be installed.  Then I can make a metapackage for that port, and distribute the resulting ".mpkg" file to our users.
>> 
>> 	Is there an accepted, canonical way to do this?  The trivial way to do it would be to null out all the parts of a portfile, except the "devroot" (install) section is not allowed to be null.
> 
> Can you not make a meta/stub port that installs nothing and depends on your list of ports?
> 
> Look at the replaced_by example:
> http://guide.macports.org/#development.practices.rename-replace-port

I apologies, I thought that example would work different then it does. Look at the examples Josh provided.


Regards,
Bradley Giesbrecht (pixilla)

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