[Rpm-maint] [rpm-software-management/rpm] RFE: Handle disttag (#589)

[Ivan Zakharyaschev]

On Sat, 10 Nov 2018, Jeff Johnson wrote:

> Nit picky parsing comment:
> 
> The representation for "release:distag" (your example) fed to  --query MUST be 
> 
> rpm --query -- -release:distag
> 
> Without the leading - on release, a parser will interpret release as version, doh!
> 
> See if you agree ...

Perhaps I don't understand your comment very well.

But I haven't thought about giving parts of NEVR without including the 
name as arguments to rpm.

I used the short form `release:disttag` to say that wherever one used to 
put the value `release` in his scripts, one might end up putting a string 
that actually is `release:disttag` if one has parsed the ouptut of 
`rpm -qa` after the proposed changed.

So, that would translate to your specific example (of a script where one 
used to put the value `release`):

One used to call:

    rpm --query release

If parsing the output of `rpm -qa` after the proposed change, one would 
call:

    rpm --query release:disttag

I feel that even the first command is strange (`rpm --query release`); I 
wouldn't expect it to appear in a useful script. So I don't see a reason 
to discuss the second one.

-- 
Best regards,
Ivan


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