[openstack-dev] [All] Proposal to add examples/usecase as part of new features / cli / functionality patches

Deepak Shetty dpkshetty at gmail.com
Thu Nov 27 04:49:19 UTC 2014


But isn't *-specs comes very early in the process where you have an
idea/proposal of a feature, u don't have it yet implemented. Hence specs
just end up with Para's on how the feature is supposed to work, but doesn't
include any real world screen shots as the code is not yet ready at that
point of time. Along with patch it would make more sense, since the author
would have tested it so it isn't a big overhead to catch those cli screen
shots and put it in a .txt or .md file so that patch reviewers can see the
patch in action and hence can review more effectively

thanx,
deepak


On Thu, Nov 27, 2014 at 8:30 AM, Dolph Mathews <dolph.mathews at gmail.com>
wrote:

>
> On Wed, Nov 26, 2014 at 1:15 PM, Steve Gordon <sgordon at redhat.com> wrote:
>
>> ----- Original Message -----
>> > From: "Deepak Shetty" <dpkshetty at gmail.com>
>> > To: "OpenStack Development Mailing List (not for usage questions)" <
>> openstack-dev at lists.openstack.org>
>> >
>> > Hi stackers,
>> >    I was having this thought which i believe applies to all projects of
>> > openstack (Hence All in the subject tag)
>> >
>> > My proposal is to have examples or usecase folder in each project which
>> has
>> > info on how to use the feature/enhancement (which was submitted as part
>> of
>> > a gerrit patch)
>> > In short, a description with screen shots (cli, not GUI) which should be
>> > submitted (optionally or mandatory) along with patch (liek how testcases
>> > are now enforced)
>> >
>> > I would like to take an example to explain. Take this patch @
>> > https://review.openstack.org/#/c/127587/ which adds a default volume
>> type
>> > in Manila
>> >
>> > Now it would have been good if we could have a .txt or .md file alogn
>> with
>> > the patch that explains :
>> >
>> > 1) What changes are needed in manila.conf to make this work
>> >
>> > 2) How to use the cli with this change incorporated
>> >
>> > 3) Some screen shots of actual usage (Now the author/submitted would
>> have
>> > tested in devstack before sending patch, so just copying those cli
>> screen
>> > shots wouldn't be too big of a deal)
>> >
>> > 4) Any caution/caveats that one has to keep in mind while using this
>> >
>> > It can be argued that some of the above is satisfied via commit msg and
>> > lookign at test cases.
>> > But i personally feel that those still doesn't give a good
>> visualization of
>> > how a feature patch works in reality
>> >
>> > Adding such a example/usecase file along with patch helps in multiple
>> ways:
>> >
>> > 1) It helps the reviewer get a good picture of how/which clis are
>> affected
>> > and how this patch fits in the flow
>> >
>> > 2) It helps documentor get a good view of how this patch adds value,
>> hence
>> > can document it better
>> >
>> > 3) It may help the author or anyone else write a good detailed blog post
>> > using the examples/usecase as a reference
>> >
>> > 4) Since this becomes part of the patch and hence git log, if the
>> > feature/cli/flow changes in future, we can always refer to how the
>> feature
>> > was designed, worked when it was first posted by looking at the example
>> > usecase
>> >
>> > 5) It helps add a lot of clarity to the patch, since we know how the
>> author
>> > tested it and someone can point missing flows or issues (which otherwise
>> > now has to be visualised)
>> >
>> > 6) I feel this will help attract more reviewers to the patch, since now
>> its
>> > more clear what this patch affects, how it affects and how flows are
>> > changing, even a novice reviewer can feel more comfortable and be
>> confident
>> > to provide comments.
>> >
>> > Thoughts ?
>>
>> I would argue that for the projects that use *-specs repositories this is
>> the type of detail we would like to see in the specifications associated
>> with the feature themselves rather than creating another separate
>> mechanism. For the projects that don't use specs repositories (e.g. Manila)
>> maybe this demand is an indication they should be considering them?
>>
>
> +1 this is describing exactly what I expect out of *-specs.
>
>
>>
>> -Steve
>>
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>
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