Re: [MirageOS-devel] Irmin merge question

[Thomas Gazagnaire <thomas@xxxxxxxxxxxxxx>]

> I have a question about Irmin merge call back for user-defined contents. It 
> appears that merge is only called for the content that was changed but not 
> added or deleted. Is it possible to have it called for all actions?

It's supposed to be called even when one of the version is added or deleted. In 
that case one of the values will be a None. That's why the merge callback [1] 
takes an option type. Notice that you should not normally have None for all the 
3 elements of the 3-way merge.

Best,
Thomas

[1] http://mirage.github.io/irmin/Irmin.Contents.S.html#VALmerge


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