Re: [NGO] external module properties

Phil Shafer <phil@juniper.net> Tue, 29 April 2008 22:45 UTC

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To: David Harrington <ietfdbh@comcast.net>
In-reply-to: <00e201c8aa35$5a893830$0600a8c0@china.huawei.com>
Date: Tue, 29 Apr 2008 18:43:24 -0400
From: Phil Shafer <phil@juniper.net>
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Cc: ngo@ietf.org
Subject: Re: [NGO] external module properties
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"David Harrington" writes:
>I think we might need the capability of specifying version in the
>include statement (if the version dependency is important, but it
>should be able to be left out when it is not important)

I keep coming back to this also, for the "import" statement.
Consider this scenario/timeline:

- module A defines a cool feature
- modules B and C import A to use that feature
- module A gets rev'd to add a new leaf to a grouping
- module B wants the new leaf
- module C doesn't want it

Without revision-specific imports, this scenario is unworkable.

With revisions, module B would get rev'd to import the new revision
of A.  Module C would continue to import the previous revision.

Thanks,
 Phil
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