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Re: bzr is online

From: Vladimir 'phcoder' Serbinenko
Subject: Re: bzr is online
Date: Mon, 09 Nov 2009 09:41:07 +0100
User-agent: Mozilla-Thunderbird (X11/20090701)

Bean wrote:
> On Mon, Nov 9, 2009 at 4:45 AM, Vladimir 'phcoder' Serbinenko
> <address@hidden> wrote:
>> Bean wrote:
>>> On Sun, Nov 8, 2009 at 11:36 PM, Vladimir 'phcoder' Serbinenko
>>> <address@hidden> wrote:
>>>> Hello, all. As you may have heard or noticed we had a data corruption in
>>>> bzr repository. We couldn't find for sure what caused it but we could
>>>> recover it, Robert Millan is running regular backups. But please be
>>>> careful in the future.
>>>> 1) Don't use bzr-svn. The IDs won't match anyway so it's useless. I
>>>> removed bzr-svn altogether
>>>> 2) Don't use bzr+ssh. Old daemon on savannah is one of possible vectors.
>>>> --2a format should block it but don't even try please. Use
>>>> s
>>>> <s>
>>>> 3) Take precautions when handling your current branches. As the IDs
>>>> don't match the bzr trunk you need to migrate it anyway. If you have
>>>> small number of branches and history isn't important just create a patch
>>>> and apply it to new bzr branch of current trunk. If you have large
>>>> number of branches or no local copy contact me privately.
>>>> 4) Regularly run "bzr check" on your repository
>>>> 5) Sign your commits. For this add
>>>> create_signatures = always
>>>> to your bazaar.conf
>>>> This has double use: security and integrity.
>>>> Currentyl we haven't set up syncronisation between bzr and svn. Wait
>>>> further instructions before comitting to mainstream
>>> Hi,
>>> I just sync my branch with main bzr repo, and find similar issue. It
>>> seems the bzr diff  has bug that could cause problem with renames, for
>>> example, don't use this:
>>> old branch:
>>> bzr diff > aa.diff
>>> new branch:
>>> bzr patch aa.diff
>>> The renamed file could get lost in the process. The only reliable way
>>> to apply patch is to export the whole tree from old branch, and add
>>> them in the new branch.
>> I don't know what exactly do you mean but the concern is safety: your
>> approach may result in corruption to be transfered to new repo
> Hi,
> It's very easy to verify, for example, run these commands:
> bzr diff > aa.diff
> Output:
> === renamed file 'COPYING' => 'COPYING1'
> This is obviously wrong, as neither "patch" nor "bzr patch" recognize
> this format, so if you apply it with:
> bzr patch aa.diff
> Nothing happens. Therefore, 'bzr diff' is useless to create patch file
> containing renames.
> BTW, my bzr version is 2.0.2
I understood this part but haven't understood what do you propose as an
(BTW feel free to report this issue to bzr mainstream)

Vladimir 'phcoder' Serbinenko

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