Re: Help explain peg revisions

On 16-Mar-06, at 12:36 PM, Gale, David wrote:

> Scott Palmer wrote:
>> On 16-Mar-06, at 10:05 AM, David Heppenstall wrote:
>>
>> Do you want to checkout the 5th revision? If so:
>>
>> svn checkout <URL>@5 ... [PATH]
>>

> The syntax given by Mr. Heppenstall (svn checkout
> <URL>@5..." is wrong; it's full equivalent is "svn co -rHEAD <URL>@5",
> which means "checkout the current revision of the file that was at
> this
> URL at revision 5".
>
> The only time you really need to specify both a -r argument and a peg
> revision is when a file has been (potentially) deleted or moved,
> and you
> know what its name was at some point in the past. Your original
> understanding was correct.

No. Actually Mr. Heppenstall is correct.

I did the experiment. (Actually a slightly modified experiment using
'cat' instead of 'checkout')

svn cat url-to-foo@5

outputs the contents of 'foo' as it existed in revision 5, even
though the head revision is different.

Sadly there seems to be a bug because if foo is renamed to bar in the
head revsion

svn cat -rHEAD url-to-foo@5

FAILS! the Error message is
svn: File not found: revision 10, path '/path/to/foo'

Where 10 is the revision of HEAD.
This is NOT what I expected. I', using Subversion 1.3.0 on Windows XP.
Peg revisions are broken it seems. At least for the 'svn cat' command.

Scott

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Received on Thu Mar 16 20:38:21 2006