Re: What's cooking in git.git (Aug 2018, #01; Thu, 2)

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Junio C Hamano <gitster@xxxxxxxxx> writes:

> * ds/commit-graph-with-grafts (2018-07-19) 8 commits
>   (merged to 'next' on 2018-08-02 at 0ee624e329)
>  + commit-graph: close_commit_graph before shallow walk
>  + commit-graph: not compatible with uninitialized repo
>  + commit-graph: not compatible with grafts
>  + commit-graph: not compatible with replace objects
>  + test-repository: properly init repo
>  + commit-graph: update design document
>  + refs.c: upgrade for_each_replace_ref to be a each_repo_ref_fn callback
>  + refs.c: migrate internal ref iteration to pass thru repository argument
>
>  The recently introduced commit-graph auxiliary data is incompatible
>  with mechanisms such as replace & grafts that "breaks" immutable
>  nature of the object reference relationship.  Disable optimizations
>  based on its use (and updating existing commit-graph) when these
>  incompatible features are in use in the repository.
>
>  Will merge to 'master'.

Derrick wrote that he will be sending v2 of this patch series in a few
weeks, among others to make it use commit-graph feature if replace
objects are present but not used (as some git hosting services do, see
core.useReplaceRefs below).

Also, the test for interaction of commit-graph with the grafts file
feature does not actually test grafts, but replace objects.

> * jk/core-use-replace-refs (2018-07-18) 3 commits
>   (merged to 'next' on 2018-08-02 at 90fb6b1056)
>  + add core.usereplacerefs config option
>  + check_replace_refs: rename to read_replace_refs
>  + check_replace_refs: fix outdated comment
>
>  A new configuration variable core.usereplacerefs has been added,
>  primarily to help server installations that want to ignore the
>  replace mechanism altogether.
>
>  Will merge to 'master'.

Nice to have features used in the wild merged into core git.

-- 
Jakub Narębski




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