Re: Export from bzr / Import to git results in a deleted file re-appearing

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Andreas Schwab <schwab@xxxxxxxxxxxxxx> writes:

> Jeff King <peff@xxxxxxxx> writes:
>
>> On Fri, Jul 13, 2012 at 11:04:21AM +0200, Andreas Schwab wrote:
>>
>>> > If you run only the bzr half of your command and inspect the output, you
>>> > will see that the file in question is mentioned twice.  Once in a commit
>>> > on "refs/heads/master" that renames into it from another file:
>>> >
>>> >   R freeplane_plugin_spreadsheet/src/org/freeplane/plugin/spreadsheet/SpreadSheetUtils.java
>>> >     freeplane_plugin_formula/src/org/freeplane/plugin/formula/SpreadSheetUtils.java
>>> 
>>> That same revision also removes it, but is uses the original name for
>>> the deletion (the bzr revision actually renames the containing
>>> directory).  That's probably what confuses git fast-import.
>>> [...]
>>> The output contains these lines:
>>> 
>>> R a/b b/b
>>> D a/b
>>> 
>>> Changing the second line to D b/b fixes the bug.
>>
>> Yeah, I agree that is problematic. But I do not think it is a
>> fast-import bug, but rather bogus output generated by bzr fast-export (I
>> am not clear from what you wrote above if you are considering it a bug
>> that fast-import is confused). It seems nonsensical to mention a file
>> both as a rename source and as deleted in the same revision, and
>> certainly I would not expect an importer to deduce a link between the
>> second line and b/b.
>
> IMHO fast-import should raise an error in this case, like it does when
> you switch the lines.

+1.

Thanks very much for fixing bzr-fastexport!
Also many thanks to Jeff for the analysis!

Best Regards,
-- 
Felix Natter

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