[cvsnt] Re: "cvs diff -rHEAD" annoyance

Tony Hoyle tmh at nodomain.org
Thu Jul 15 17:59:52 BST 2004

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On 15 Jul 2004 18:26:15 +0200, Johan Holmberg <holmberg at iar.se> wrote:

>Tony Hoyle <tmh at nodomain.org> writes:
>> >I don't know if I understood all of that disscussion, but weren't they
>> >talking about different branches, and the meaning of HEAD in that context ?
>> >My example was very simple with all revisions on the mainline.
>> >
>> They are saying that specifying HEAD with diff will enable different
>> behaviour to specifying HEAD in any other command.  In particular it
>> *will* select deleted files from the branch.  See the output of the
>> command in the thread - the error message you queried features and is
>> one of the points under discussion.
>I just discovered that I can get the same behaviour with the following
>command (I put the file 'foo.txt' in the "attic" about 6 hours ago):
>    $ cvs diff -D '1 hour ago'
>    cvs server: Diffing .
>    cvs server: foo.txt no longer exists, no comparison available
>Doesn't this show that we are talking about a slightly other
>problem than the HEAD issue you referred to ?
It's probably related... a date is just a special case of tag really
(at least at the code level).

IIRC date comparisons always compare against HEAD anyway (something
that's really annoyed me more than once...).  The diff code probably
needs to work more like annotate/log.


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