On Sat, May 9, 2020 at 4:07 AM tom petch <[email protected]> wrote:
> From: netmod <[email protected]> on behalf of Reshad Rahman > (rrahman) <[email protected]> > Sent: 08 May 2020 15:13 > > Hi, > > We discussed using something along the lines of > module-or-submodule-name['@'date]['#'revision-label].yang. Questions to the > WG: > 1) Is there a need for both date and revision-label or is one of them > enough? > > <tp> > One of them is quite enough and since the date is embedded in many systems > it would be wrong to change it. The module name is the primary identifier > of this bundle of definitions but it was decided that as and when there was > a change therein then the date would provide a unique identifier for a > particular version; nothing more is needed. Arguably the date is more > complex than is warranted but it has worked. Indeed that format is now > used and understood by such as IANA and the RFC Editor. > > +1 This would be a very disruptive change with little to no value. > If you want to record more detailed semantics of the relationships between > different versions, then put it somewhere else and leave the identifier > alone, let the identifier be an identifier and not be overloaded with > semantics. > > Tom Petch > > Andy > > > > > > > > 2) If we have both, what's the impact of having "#revision-label" on > implementations which search by date? > > Regards, > Reshad. > > On 2020-03-27, 5:44 PM, "netmod on behalf of Reshad Rahman (rrahman)" < > [email protected] on behalf of [email protected]> > wrote: > > Hi, > > https://github.com/netmod-wg/yang-ver-dt/issues/50 > > o 3.3 > > In the filename of a YANG module, where it takes the > form: module- > or-submodule-name ['@' revision-label] ( '.yang' / > '.yin' ) > > Should this section update 5.2 of RFC 7950? I know that 5.2 > just > says "SHOULD". But existing tools implement this SHOULD, > and they > need to be updated to handle this new convention. > > But I wonder if this a good idea. It means that a tool that > looks > for a module with a certain revision date cannot simply > check the > filenames, but need to parse all available modules (wijust > to find the > > We agree that there is an impact on searching by date. We put this in > to have the ability to search by revision-label, otherwise we can search > just by date for a module which uses revision-label. > We had also discussed using different limiter for the label and have > something along the lines of: > module-or-submodule-name['@'date]['#'revision-label].yang > It'd seem that updating 7950 would be a good idea whichever way we go.. > > Regards, > Reshad. > > > On 2020-03-20, 5:08 PM, "netmod on behalf of Reshad Rahman (rrahman)" < > [email protected] on behalf of [email protected]> > wrote: > > Hi Martin, > > We've opened issues to track your review comments (see below). > Will kick off separate therads for each issue. > > > https://github.com/netmod-wg/yang-ver-dt/issues?q=is%3Aissue+is%3Aopen+label%3Aupdated-mod-rev-handling > > Regards, > Reshad. > > On 2020-03-10, 3:31 PM, "netmod on behalf of Martin Björklund" < > [email protected] on behalf of [email protected]> wrote: > > Hi, > > Here are my review comments of > draft-verdt-netmod-yang-module-versioning-01. > > > > o 3.1.1 > > o In statements that have any data definition statements > as > substatements, those data definition substatements MAY > be > reordered, as long as they do not change the ordering > or any "rpc" > "input" substatements. > > I think this needs to capture that no descendant statements > to > "input" can be reordered. Same for "output" (note, "input" > and > "output" in both "rpc" and "action"). > > > o 3.3 > > All revision labels that match the pattern for the > "version" > typedef in the ietf-yang-semver YANG module MUST be > interpreted as > YANG semantic version numbers. > > I don't think this is a good idea. Seems like a layer > violation. > What if my project use another dialect of semver, that > wouldn't be > possible with this rule. I think this needs to be removed. > > > o 3.3 > > Submodules MUST NOT use revision label schemes that could > be confused > with the including module's revision label scheme. > > Hmm, how do I ensure that this MUST NOT is handled > correctly? What > exactly does "could be confused with" mean? > > > o 3.3 > > In the filename of a YANG module, where it takes the > form: module- > or-submodule-name ['@' revision-label] ( '.yang' / > '.yin' ) > > Should this section update 5.2 of RFC 7950? I know that 5.2 > just > says "SHOULD". But existing tools implement this SHOULD, > and they > need to be updated to handle this new convention. > > But I wonder if this a good idea. It means that a tool that > looks > for a module with a certain revision date cannot simply > check the > filenames, but need to parse all available modules (wijust > to find the > > > > o 3.4 > > leaf imperial-temperature { > type int64; > units "degrees Fahrenheit"; > status deprecated { > rev:status-description > "Imperial measurements are being phased out in favor > of their metric equivalents. Use > metric-temperature > instead."; > } > description > "Temperature in degrees Fahrenheit."; > } > > I don't think rev:status-description is necessary / worth > it. This > can easily be written with the normal description statement > instead: > > leaf imperial-temperature { > type int64; > units "degrees Fahrenheit"; > status deprecated; > description > "Imperial measurements are being phased out in favor > of their metric equivalents. Use > metric-temperature > instead. > > Temperature in degrees Fahrenheit."; > } > > > o 3.5 > > The example modules should be legal YANG modules. Use e.g. > "urn:example:module" as namespace. > > Also, the modules are missing the last "}", which confuses > the > "rfcstrip" tool. > > > o 4.1.1 > > Alternatively, the first example could have used the > revision label > "1.0.0" instead, which selects the same set of > revisions/versions. > > import example-module { > rev:revision-or-derived 1.0.0; > } > > Shouldn't this be s/1.0.0/2.0.0/g ? > > > o 5 > > I think the module name "ietf-yl-revisions" should be > changed to > "ietf-yang-library-revisions". "yl" is not a well-known > acronym. > > > o 5.2.2 > > Wouldn't it be better if the leaf > "deprecated-nodes-implemented" and > "obsolete-nodes-absent" were of type "boolean" rather than > type > "empty"? > > > o 7.1 > > The text says: > > All IETF YANG modules MUST include revision-label > statements for all > newly published YANG modules, and all newly published > revisions of > existing YANG modules. The revision-label MUST take the > form of a > YANG semantic version number > [I-D.verdt-netmod-yang-semver]. > > I strongly disagree with this new rule. IETF modules use a > linear > history, so there are no reasons to use "modified semver". > > It is ok to use rev:nbc-changes if needed, though. > > > o 7.1.1 > > There is a missing " in: > > 4. For status "obsolete", it is RECOMMENDED to keep the > "status- > description" information, from when the node had status > "deprecated, which is still relevant. > HERE -----------^ > > > o 8 > > s/CODE ENDS>/<CODE ENDS>/ > > > o Both YANG modules > > All extensions should specify the grammar; i.e., in which > statements > they can be present and which substatements they can have. > > > > /martin > > _______________________________________________ > netmod mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/netmod > > > _______________________________________________ > netmod mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/netmod > > > _______________________________________________ > netmod mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/netmod > > > _______________________________________________ > netmod mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/netmod > _______________________________________________ > netmod mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/netmod >
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