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From Andy Levy <andy.l...@gmail.com>
Subject Re: the revision number and a tag
Date Thu, 11 Aug 2011 16:16:32 GMT
On Thu, Aug 11, 2011 at 12:13, Andy Levy <andy.levy@gmail.com> wrote:
> On Thu, Aug 11, 2011 at 12:02, Giulio Troccoli
> <giulio.troccoli@mediatelgroup.co.uk> wrote:
>>
>>
>> On 11/08/11 16:59, Michael Hüttermann wrote:
>>>
>>> Hello,
>>>
>>> given a Subversion tag, what's the best way to get the revision number of
>>> that tag, i.e. the revision number with which the tag was created? Is it
>>> possible at all having checked out the tag to a local working copy? Or is
>>> there any other way to cross-reference a "tag" to a revision number?
>>>
>>>
>>> Thanks.
>>>
>>>
>>> Michael
>>>
>>
>> I think svn log --limit 1 would work. It will give you the last log when the
>> tag was modified. Since a tag should never be modified that log should refer
>> to the copy
>
> That or svn log --stop-on-copy.
>
> If you use svn log -v --stop-on-copy, the list of changed paths (the
> copy destination) will be given, in addition to the source path and
> its revision. Parse that out and you're set. You'll have both the
> revision which created the tag and the latest revision of the path the
> tag came from.
>

I hit Send too early.

If no one has modified the tag, --limit 1 would yield the same results
as --stop-on-copy. But if someone *has* modified the tag (which we
agree shouldn't happen, but depending on your setup, it could - that's
a whole other matter), that modification will appear instead of the
copy which created the tag. If you use --stop-on-copy, you can detect
this condition and the oldest log will end up being the creation of
the tag.

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