Re: [PATCH 3/5] interpret-trailers: add an option to show only existing trailers

On Thu, Aug 10, 2017 at 12:32 AM, Jeff King [off-list ref] wrote:

On Wed, Aug 09, 2017 at 11:18:19AM -0700, Stefan Beller wrote:

quoted

On Wed, Aug 9, 2017 at 5:24 AM, Jeff King [off-list ref] wrote:

quoted

It can be useful to invoke interpret-trailers for the
primary purpose of parsing existing trailers. But in that
case, we don't want to apply existing ifMissing or ifExists
rules from the config. Let's add a special mode where we
avoid applying those rules. Coupled with --only-trailers,
this gives us a reasonable parsing tool.

I have the impression that the name is slightly misleading
because 'only' just reduces the set. it does not enhance it.
(Do we have a configuration that says "remove this trailer
anytime"?)

No, I think you can only add trailers via ifExists or ifMissing.
I actually called this --no-config originally, because to me it meant
"do not apply config". But the processing applies also to --trailer
arguments no the command line, which is how I ended up with
--only-existing.

quoted

So maybe this is rather worded as 'exact-trailers' ?

I'm not fond of that, as it's vague about which exact trailers we're
talking about. I also thought of something like --verbatim, but I'd
worry that would seem to conflict with --normalize.

I dunno. All of the names seem not quite descriptive enough to me.

I meant 'exact' as in 'exactly from the patch/commit, no external
influence such as config', so maybe '--from-patch' or '--from-commit'
(which says the same as --no-config just the other way round.
Having --no- in config options as the standard is a UX disaster
IMHO as then we have to forbid the --no-no-X or reintroduce X
and flip the default)

Maybe --genuine ?

-Peff