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From russellh <>
Subject Re: missing sha-1 after svndumptool
Date Fri, 15 Jun 2012 10:54:38 GMT
Thanks Steve,

That's really useful. In that case we shall carry on with our migration 
using svndumptool.

We are aware it's a third party application, but since it affects our 
Subversion dump files we thought that you guys would be better placed to 
answer whether this would cause an issue with usage of the output dump 

It sounds like the MD5 check sums are enough so that's good.

Thanks again for the swift response!


On 15/06/2012 11:18, Stephen Butler wrote:
> On Jun 15, 2012, at 9:18 , russellh wrote:
>> Hi all,
>> We have used svndumptool to change all the externals in our Subversion repositories
during a migration due to a change from http to https on our system.
>> We noticed that the new file created by svndumptool is missing all the sha-1 lines
(md5s still in there) that were in the old file however everything seems to work OK on testing.
>> Is this an issue or is this something we can ignore?
>> Cheers,
>> Russell
> Subversion's 'svnadmin load' command checks file content against MD5
> checksums.  For backward compatibility, neither MD5 nor SHA1 is required.
> The 'svnadmin dump' command will write SHA1 checksums, but 'svnadmin
> load' ignores them when parsing a dump file.  For historical reasons,
> svndumpfilter reuses the svnadmin dump-parsing code, so it drops SHA1s
> too.
> Note that svndumptool is an independent project.  I see in their TODO.txt
> "Add support for sha1?".  They're probably waiting for Subversion to start
> using the SHA1s.
> So there's no short-term issue for you to worry about, but I suppose it's about
> time we (Subversion) stopped dropping SHA1s when parsing dump files.  As
> it happens, I'm changing the dump parsing code right now, so I'll add that to
> my list.
> Steve
> --
> Stephen Butler
> elego Software Solutions GmbH

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