[Monotone-devel] Re: MT directory renaming (triggers fatal logic error)

[Stefan Behnel]

Stefan Behnel wrote:
> First of all, I'm not subscribed to this list, so please reply directly.
> 
> My problem is: monotone keeps crashing on me when I'm trying to move a
> directory into a subdirectory, i.e.
> 
> NOW:
> dir1/some-versioned-files
> dir2/some-versioned-files
> newdir
> 
> DESIRED:
> newdir/dir1/...
> newdir/dir2/...
> 
> I tried:
> 
> 1) move dir, mt rename, mt commit
> 2) mt rename, move dir, mt commit
> 3) mt rename, mt commit, [move dir]
> 
> All three fail with a message like this during "mt commit":
> ----------------
> monotone: fatal: std::logic_error: change_set.cc:380: invariant
> 'I(isect.empty())' violated
> monotone:
> monotone: this is almost certainly a bug in monotone.
> ----------------
> 
> I removed the entries in 'MT/work' between each attempt. I also tried adding
> the new directory, but that didn't help either.
> 
> I first used mt 0.17, which failed, then installed mt 0.23 and migrated, but
> afterwards, mt failed again. This is really, really, REALLY, annoying. I tried
> to find any help on renaming directories on the web, but all I found is that
> monotone is 'great for renaming'. Well, obviously it isn't. If it's a bug,
> it's been in there for quite a while.
> 
> I would have attached the debug log, but at a quick scan I found that it is
> packed with sensitive data, so I won't send it to a public mailing list.
> 
> I still hope that someone can give me a hint how this is normally supposed to
> work.

I found it, it's really a bug in monotone. The new directory had the same name
as an old file (not directory) in the repository. It works with a different
directory name.

One to fix for the next release...

Stefan