Re: [PATCH 1/4] cksum: use --tag format by default

[Pádraig Brady]

On 17/09/2021 19:25, Pádraig Brady wrote:
> On 17/09/2021 18:43, Eric Blake wrote:
> > [IOn Wed, Sep 15, 2021 at 01:40:33PM +0100, Pádraig Brady wrote:
> > > This format is a better default, since it results in simpler usage,
> > > as you don't need to specify --tag on generation or -a on
> > > checking invocations.  Also it's a more general format supporting
> > > mixed and length adjusted digests.
> >
> > > @@ -4143,6 +4153,8 @@ indicating there was a failure.
> > >    @item --tag
> > >    @opindex --tag
> > >    @cindex BSD output
> > > +Note this option is not supported by the @command{cksum} command,
> > > +as this is the default output format that it uses.
> >
> > Shouldn't we still support the option, even if it is a no-op in the
> > common case, so that someone can do actions similar to:
> >
> > alias mysum='cksum --untagged '
> >
> > and then invoke 'mysum --tag' to turn it back on?
>
> Maybe.
> Perhaps on some systems only cksum might be installed,
> with md5sum etc. being provided as simple wrappers like:
>
>     exec cksum -a md5 --untagged "$@"
>
> Though that begs the question, should cksum support all of
> --tag, --text, --binary ?
>
> I'd be 60:40 for adding the --tag option to cksum,

I'll pushed the attached later to support cksum --tag
for the reasons above.

cheers,
Pádraig

cksum--tag.patch
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