hg convert failing on a repo with subrepos

[Matt Harbison]

On Mon, 07 May 2018 08:56:02 -0400, Svein Seldal <sveinse at seldal.com>  
wrote:

> Hi
>
> I'm having a hg repo which I want to run hg convert on. The repo is  
> using subrepos with references to repos from hg, svn and git and it has  
> largefiles. hg convert fails if .hgsub* is included when running hg  
> convert:

I don't think that convert supports subrepos.  That said, as long as you  
don't do anything that would change the hashes of the subrepos, it should  
probably work.

>      hg convert -s hg tmp.1-hg -d hg tmp.2-hg --filemap file.map  
> --config convert.hg.startrev=5
>
> Attempt 1)  With empty file.map, the convertion fails with: "abort:  
> data/.hgsubstate.i at 303030303030: no node!"
>
> Attempt 2)  I don't really need the hg subrepos functionality intact,  
> but I must retain the revision controlled files in order to recreate the  
> specific subrepos manually if needed. I then rename the hgsub files:
>
>      rename .hgsub .old.hgsub
>      rename .hgsubstate .old.hgsubstate
>
> Then it fails even earlier, with "abort: unable to convert merge commit  
> since target parents do not merge cleanly". The file listed file failing  
> has no relationship with .hgsub.

I've seen weirdness with file map too.  I thought it was file drop  
related, but maybe it was a rename issue.

What are you trying to do with this conversion?

> Attempt 3)  If I completely exclude the subrepo files, then it converts  
> fine, but then again the information of the subrepos references are lost.
>
>      exclude .hgsub
>      exclude .hgsubstate
>
> What can I do to fix or debug this issue? hg verify on a checked out  
> clone does not complain on the repo, except for some old subrepos that  
> aren't available any more. I'm running hg 4.5.3 from Ubuntu 18.04.

I'm not sure if the missing subrepos would be a problem.  You may end up  
having to write an extension that tweaks the default convert behavior.

     https://www.mercurial-scm.org/wiki/ConvertExtension#Customization

> Best regards,
> Svein
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