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Re: [netmod] Revision label in filename

"Reshad Rahman (rrahman)" <rrahman@cisco.com> Thu, 11 June 2020 19:05 UTC

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From: "Reshad Rahman (rrahman)" <rrahman@cisco.com>
To: Jan Lindblad <janl@tail-f.com>, "Reshad Rahman (rrahman)" <rrahman=40cisco.com@dmarc.ietf.org>
CC: "netmod@ietf.org" <netmod@ietf.org>
Thread-Topic: [netmod] Revision label in filename
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Date: Thu, 11 Jun 2020 19:05:13 +0000
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Subject: Re: [netmod] Revision label in filename
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On 2020-06-11, 4:21 AM, "netmod on behalf of Jan Lindblad" <netmod-bounces@ietf.org on behalf of janl@tail-f.com> wrote:

    Hi,

    > I understand the requirement to not break what's currently working for date in the filename. However we do need something similar to work for revision-label. Having another file with the revision-label embedded in the filename should work. 
    > 
    > We discussed this issue in yesterday's weekly meeting and a proposal was made to use '@@' as delimiter for revision-label. # was turned down because of its impact on bash.

    I did a quick check, and # is only treated as a comment character by bash when preceded by whitespace, i.e. not when used in the middle of a filename => I think we can drop the comment above.
Glad # works as delimiter.
    If we want a filename to include multiple kinds of revision markings while keeping the existing tools afloat, implementing the @ notation, that might be achievable by picking some delimiter that is treated as a filename character by existing tools and placing the version label before the @. I.e. with # as the delimiter:

    module-or-submodule-name['#'revision-label]['@'date].yang
When we discussed this on Tuesday, there was concern that some tools would interpret the module/submodule name as "module-or-submodule-name['#'revision-label]". 
My preference right now is to have 2 filenames (I realize this could also impact some tools), but I'll be content with any workable solution.

Regards,
Reshad.

    Many other (combinations of) symbols could work, but they all run the risk of interfering with some tool or vendor internal CI/CD convention. A few examples: double underscore __, tripple dots ..., _ver_, ~, :

    /jan


    > So:
    > module-or-submodule-name['@'date].yang (unchanged)
    > module-or-submodule-name['@@'revision-label].yang
    > 
    > A symlink could be used, or we could have duplicate file contents.
    > 
    > Regards,
    > Reshad.

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