Merge branch 'ds/commit-graph-with-grafts'
authorJunio C Hamano <gitster@pobox.com>
Tue, 16 Oct 2018 07:15:59 +0000 (16:15 +0900)
committerJunio C Hamano <gitster@pobox.com>
Tue, 16 Oct 2018 07:15:59 +0000 (16:15 +0900)
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.

* ds/commit-graph-with-grafts:
  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


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